https://prancer.physics.louisville.edu/astrowiki/api.php?action=feedcontributions&user=Benne&feedformat=atomAstroEdWiki - User contributions [en]2024-03-29T08:02:27ZUser contributionsMediaWiki 1.38.2https://prancer.physics.louisville.edu/astrowiki/index.php?title=Black_Body_and_Filters&diff=2586Black Body and Filters2019-09-13T13:26:12Z<p>Benne: </p>
<hr />
<div><br />
This is the stub for a lab using the online black body tool and astronomical filters <br />
<br />
In PHYS 107 you'll learn that stars glow thermally i.e. across all wavelengths but with different colors depending on their temperature. <br />
Astronomy uses filters to measure the colors of stars, essentially colored glass that only lets through a select part of the electromagnetic spectrum. <br />
<br />
<br />
== Getting Started ==<br />
<br />
Open the black body online tool: <br />
<br />
<br />
[https://phet.colorado.edu/en/simulation/blackbody-spectrum Black Bodies and Filters]<br />
<br />
<br />
There is an older version [http://astro.unl.edu/naap/blackbody/animations/blackbody.html here] but it requires Flash. <br />
<br />
== Questions ==<br />
<br />
''1. What temperature is the star?''<br />
<br />
''2. What happens if you increase the temperature of this star?''<br />
<br />
''3. The visible spectrum is from 400nm to 700nm. How hot does a star need to be to have it's peak at the blue end?''<br />
<br />
''4. How hot is a star that peaks at the red end of the visible?''<br />
<br />
''5. Can a star peak outside the visible spectrum?''<br />
<br />
''6. Our Sun is yellow. What does that imply for its temperature?''<br />
<br />
''7. At what temperature does Sirius A peak? What wavelength? Can our eyes detect that light?''<br />
<br />
''8. Add a curve (the camera icon, the gray curve stays). What happens when you make that second star hotter than the first?''<br />
<br />
''9. A star that peaks in the blue, does it give off more or less red light than a star that peaks in the red?''<br />
<br />
''10. Compare the Sun and Sirius A. Which appears blue (relative more blue than red light) and which gives off the most light in the red?''<br />
<br />
''11. Add graph values and plot peak wavelength against temperature Plot peak wavelength vs temperature on a graph. What kind or relation is there between these two values?''<br />
<br />
''12. Include 'intensity' on the display. Plot the intensity as a function of temperature f<br />
<br />
''13. Change the horizontal scale to include up to 6 micron in wavelength. Is there are temperature for a star where it does *not* emit any light at 1-5 micron?''<br />
<br />
''14. Do you think there are stars cooler than the lowest temperature allowed in the slider in this app? Motivate why or why not.''<br />
<br />
''15. Slide one curve to the maximum temperature allowed and fix with the camera icon and one to the lower temperature allowed (a little warmer than Earth). Is there a point in the spectrum that the coolest star shines brighter than the hottest star?''</div>Bennehttps://prancer.physics.louisville.edu/astrowiki/index.php?title=Black_Body_and_Filters&diff=2585Black Body and Filters2019-09-13T13:25:12Z<p>Benne: </p>
<hr />
<div><br />
This is the stub for a lab using the online black body tool and astronomical filters <br />
<br />
<br />
[http://astro.unl.edu/naap/blackbody/animations/blackbody.html Black Bodies and Filters]<br />
<br />
In PHYS 107 you'll learn that stars glow thermally i.e. across all wavelengths but with different colors depending on their temperature. <br />
Astronomy uses filters to measure the colors of stars, essentially colored glass that only lets through a select part of the electromagnetic spectrum. <br />
<br />
<br />
== Getting Started ==<br />
<br />
Open the black body online tool: <br />
<br />
<br />
[https://phet.colorado.edu/en/simulation/blackbody-spectrum Black Bodies and Filters]<br />
<br />
<br />
Make sure that Flash runs ok with the current browser etc. <br />
<br />
<br />
<br />
<br />
== Questions ==<br />
<br />
''1. What temperature is the star?''<br />
<br />
''2. What happens if you increase the temperature of this star?''<br />
<br />
''3. The visible spectrum is from 400nm to 700nm. How hot does a star need to be to have it's peak at the blue end?''<br />
<br />
''4. How hot is a star that peaks at the red end of the visible?''<br />
<br />
''5. Can a star peak outside the visible spectrum?''<br />
<br />
''6. Our Sun is yellow. What does that imply for its temperature?''<br />
<br />
''7. At what temperature does Sirius A peak? What wavelength? Can our eyes detect that light?''<br />
<br />
''8. Add a curve (the camera icon, the gray curve stays). What happens when you make that second star hotter than the first?''<br />
<br />
''9. A star that peaks in the blue, does it give off more or less red light than a star that peaks in the red?''<br />
<br />
''10. Compare the Sun and Sirius A. Which appears blue (relative more blue than red light) and which gives off the most light in the red?''<br />
<br />
''11. Add graph values and plot peak wavelength against temperature Plot peak wavelength vs temperature on a graph. What kind or relation is there between these two values?''<br />
<br />
''12. Include 'intensity' on the display. Plot the intensity as a function of temperature f<br />
<br />
''13. Change the horizontal scale to include up to 6 micron in wavelength. Is there are temperature for a star where it does *not* emit any light at 1-5 micron?''<br />
<br />
''14. Do you think there are stars cooler than the lowest temperature allowed in the slider in this app? Motivate why or why not.''<br />
<br />
''15. Slide one curve to the maximum temperature allowed and fix with the camera icon and one to the lower temperature allowed (a little warmer than Earth). Is there a point in the spectrum that the coolest star shines brighter than the hottest star?''</div>Bennehttps://prancer.physics.louisville.edu/astrowiki/index.php?title=Black_Body_and_Filters&diff=2584Black Body and Filters2019-09-13T13:13:51Z<p>Benne: </p>
<hr />
<div><br />
This is the stub for a lab using the online black body tool and astronomical filters <br />
<br />
<br />
[http://astro.unl.edu/naap/blackbody/animations/blackbody.html Black Bodies and Filters]<br />
<br />
In PHYS 107 you'll learn that stars glow thermally i.e. across all wavelengths but with different colors depending on their temperature. <br />
Astronomy uses filters to measure the colors of stars, essentially colored glass that only lets through a select part of the electromagnetic spectrum. <br />
<br />
<br />
== Getting Started ==<br />
<br />
Open the black body online tool: <br />
<br />
<br />
[https://phet.colorado.edu/en/simulation/blackbody-spectrum Black Bodies and Filters]<br />
<br />
<br />
Make sure that Flash runs ok with the current browser etc. <br />
<br />
<br />
<br />
<br />
== Questions ==<br />
<br />
''1. What temperature is the star?''<br />
<br />
''2. What happens if you increase the temperature of this star?''<br />
<br />
''3. The visible spectrum is from 400nm to 700nm. How hot does a star need to be to have it's peak at the blue end?''<br />
<br />
''4. How hot is a star that peaks at the red end of the visible?''<br />
<br />
''5. Can a star peak outside the visible spectrum?''<br />
<br />
''6. Our Sun is yellow. What does that imply for its temperature?''<br />
<br />
''7. Add a curve. What happens when you make that second star hotter than the first?''<br />
<br />
''8. A star that peaks in the blue, does it give off more or less red light than a star that peaks in the red?''<br />
<br />
''9. Select 'filters'. How many filters are shown? Which are they? List them from blue to red.''<br />
<br />
''10. Slide the temperature until the magnitude in each filter is the same. What temperature is this?''<br />
<br />
''11. The color is a proxy for the temperature of a star. Select the U-R color. What is the U-R color for a 5500K star?''<br />
<br />
''12. change the horizontal scale to include up to 5 micron in wavelength. Is there are temperature for a star where it does *not* emit any light at 1-5 micron?''<br />
<br />
''13. Do you think there are stars cooler than the lowest temperature allowed in the slider in this app? Motivate why or why not.''<br />
<br />
''14. Slide one curve to the maximum temperature allowed and one to the lowers temperature allowed. Is there a point in the spectrum that the coolest star shines brighter than the hottest star?''<br />
<br />
''15. Plot peak wavelength vs temperature on a graph. What kind or relation is there between these two values?''</div>Bennehttps://prancer.physics.louisville.edu/astrowiki/index.php?title=Galaxyzoo&diff=2581Galaxyzoo2019-08-28T16:12:22Z<p>Benne: </p>
<hr />
<div><br />
This is the stub for a lab using the online galaxy zoo; Galaxy Morphologies <br />
<br />
The GalaxyZoo was one of the first "Citizen Science" projects that asked the public to help scientist examine and classify specimens, in this case images of galaxies from the Sloan Digital Sky Survey, the first big digital color image of the Northern sky.<br />
<br />
The expected total classification count is calculated as the number of required classifications per student multiplied by the number of students in the class. For the Galaxy Zoo 101 project, 22 classifications per student are required.<br />
<br />
[http://zoo1.galaxyzoo.org The Original GalaxyZoo]<br />
<br />
It found out many new things about galaxies (red spirals! Blue Ellipticals! What is this weird green thing?) and many new editions appeared. Other citizen science is now being done under the Zooniverse umbrella [https://www.zooniverse.org Zooniverse]<br />
ranging from zoology, historical weather patterns many more astronomy projects.<br />
<br />
== Getting Started ==<br />
<br />
1. Go to the class link here: [https://classroom.zooniverse.org/#/astro-101-with-galaxy-zoo/students/classrooms/2947/join?token=166e7a5d4556cdae<br />
Galaxy Zoo 101 PHYS 108 2019F Home Page]<br />
<br />
2. make a login with your student ID. <br />
<br />
3. start classifying galaxies! <br />
<br />
== Questions ==<br />
<br />
''1. How many galaxies did you classify''<br />
<br />
''2. Did you get many artifacts? Why do you think those are still in there?''<br />
<br />
''3. What color were the spiral galaxies?''<br />
<br />
''4. What color were any elliptical galaxies you saw?''<br />
<br />
''5. Do spiral galaxies always look like a round disk? Explain your answer.''<br />
<br />
''6.</div>Bennehttps://prancer.physics.louisville.edu/astrowiki/index.php?title=Elementary_Astronomy_Laboratory_Activities&diff=2580Elementary Astronomy Laboratory Activities2019-08-28T14:31:27Z<p>Benne: </p>
<hr />
<div>These activities for an Elementary Astronomy Lab were used in classes on campus at the University of Louisville in evolving forms from 1972 - 2017. This page is not currently being updated.<br />
<br />
Many of these now have mentored versions for labs that are offered [http://prancer.physics.louisville.edu/moodle on-line] as part of our new Distance Education program. More information is available on request by sending an email to ''kielkopf at louisville dot edu''.<br />
<br />
<br />
<br />
[http://prancer.physics.louisville.edu/astrowiki/index.php/Identify_Constellations Identify Constellations ]<br />
<br />
[http://prancer.physics.louisville.edu/astrowiki/index.php/Immersive_Video_Wall About the Video Room]<br />
<br />
[http://prancer.physics.louisville.edu/astrowiki/index.php/Watch_the_Sky Watch the Sky (Planetarium session not currently offered)]<br />
<br />
[http://prancer.physics.louisville.edu/astrowiki/index.php/Under_Namibian_Skies Under Namibian Skies (immersive visualization)]<br />
<br />
[http://prancer.physics.louisville.edu/astrowiki/index.php/Night_Sky Night Sky Tonight Using Stellarium (immersive visualization)] <br />
<br />
[http://prancer.physics.louisville.edu/astrowiki/index.php/Remote_Telescope_Requests Use a Remote Telescope: Requests] and<br />
<br />
[http://prancer.physics.louisville.edu/astrowiki/index.php/Remote_Telescope_Results Analyze Request Results]<br />
<br />
Travel to Mars, Jupiter, Saturn, and Uranus (immersive visualization)<br />
<br />
Survey galaxies in the universe (immersive visualization)<br />
<br />
[http://prancer.physics.louisville.edu/astrowiki/index.php/Survey_Galaxies_in_Virgo Survey Galaxies in Virgo]<br />
<br />
[http://prancer.physics.louisville.edu/astrowiki/index.php/The_Earth_Rotates The Earth Rotates]<br />
<br />
[http://prancer.physics.louisville.edu/astrowiki/index.php/Our_Dynamic_Sun Our Dynamic Sun (may use the roof top solar telescope)]<br />
<br />
[http://prancer.physics.louisville.edu/astrowiki/index.php/Light_and_Telescopes Light and Telescopes]<br />
<br />
[http://prancer.physics.louisville.edu/astrowiki/index.php/Experiment_with_CCD_Camera_Images Experiment with CCD Camera Images]<br />
<br />
[http://prancer.physics.louisville.edu/astrowiki/index.php/Use_a_CCD_Camera Use a CCD Camera]<br />
<br />
[http://prancer.physics.louisville.edu/astrowiki/index.php/Spectra Spectra]<br />
<br />
Observing planets and the Moon with a telescope (live remote or with the telescope on the roof)<br />
<br />
[http://prancer.physics.louisville.edu/astrowiki/index.php/Explore_Mars Explore Mars] (may use immersive visualiztion)<br />
<br />
[http://prancer.physics.louisville.edu/astrowiki/index.php/Observe_Satellites_of_Jupiter_and_Saturn Observe Satellites of Jupiter, Saturn and Uranus]<br />
<br />
[http://prancer.physics.louisville.edu/astrowiki/index.php/Follow_Proxima_Centauri Follow Proxima Centauri]<br />
<br />
Brightnesses and colors of stars in Messier 34<br />
<br />
[http://prancer.physics.louisville.edu/astrowiki/index.php/Variable_Stars_in_Messier_3 Variable Stars in Messier 3]<br />
<br />
[http://prancer.physics.louisville.edu/astrowiki/index.php/Measure_a_Nearby_Supernova Measure a Nearby Supernova]<br />
<br />
[http://prancer.physics.louisville.edu/astrowiki/index.php/Track_Cosmic_Rays_in_a_Cloud_Chamber Track Cosmic Rays in a Cloud Chamber]<br />
<br />
== New Labs ==<br />
<br />
[http://prancer.physics.louisville.edu/astrowiki/index.php/FLIR_Camera The iPad and infrared camera]<br />
<br />
[http://prancer.physics.louisville.edu/astrowiki/index.php/Black_Body_and_Filters Stars as Black Bodies and Astronomical Filters]</div>Bennehttps://prancer.physics.louisville.edu/astrowiki/index.php?title=Black_Body_and_Filters&diff=2579Black Body and Filters2019-08-28T14:30:43Z<p>Benne: Black Body and Astronomical Filters online flash app assignment</p>
<hr />
<div><br />
This is the stub for a lab using the online black body tool and astronomical filters <br />
<br />
<br />
[http://astro.unl.edu/naap/blackbody/animations/blackbody.html Black Bodies and Filters]<br />
<br />
In PHYS 107 you'll learn that stars glow thermally i.e. across all wavelengths but with different colors depending on their temperature. <br />
Astronomy uses filters to measure the colors of stars, essentially colored glass that only lets through a select part of the electromagnetic spectrum. <br />
<br />
<br />
== Getting Started ==<br />
<br />
Open the black body online tool: [http://astro.unl.edu/naap/blackbody/animations/blackbody.html Black Bodies and Filters]<br />
<br />
Make sure that Flash runs ok with the current browser etc. <br />
<br />
<br />
<br />
<br />
== Questions ==<br />
<br />
''1. What temperature is the star?''<br />
<br />
''2. What happens if you increase the temperature of this star?''<br />
<br />
''3. The visible spectrum is from 400nm to 700nm. How hot does a star need to be to have it's peak at the blue end?''<br />
<br />
''4. How hot is a star that peaks at the red end of the visible?''<br />
<br />
''5. Can a star peak outside the visible spectrum?''<br />
<br />
''6. Our Sun is yellow. What does that imply for its temperature?''<br />
<br />
''7. Add a curve. What happens when you make that second star hotter than the first?''<br />
<br />
''8. A star that peaks in the blue, does it give off more or less red light than a star that peaks in the red?''<br />
<br />
''9. Select 'filters'. How many filters are shown? Which are they? List them from blue to red.''<br />
<br />
''10. Slide the temperature until the magnitude in each filter is the same. What temperature is this?''<br />
<br />
''11. The color is a proxy for the temperature of a star. Select the U-R color. What is the U-R color for a 5500K star?''<br />
<br />
''12. change the horizontal scale to include up to 5 micron in wavelength. Is there are temperature for a star where it does *not* emit any light at 1-5 micron?''<br />
<br />
''13. Do you think there are stars cooler than the lowest temperature allowed in the slider in this app? Motivate why or why not.''<br />
<br />
''14. Slide one curve to the maximum temperature allowed and one to the lowers temperature allowed. Is there a point in the spectrum that the coolest star shines brighter than the hottest star?''<br />
<br />
''15. Plot peak wavelength vs temperature on a graph. What kind or relation is there between these two values?''</div>Bennehttps://prancer.physics.louisville.edu/astrowiki/index.php?title=Black_Body_and_Filters&diff=2578Black Body and Filters2019-08-26T17:56:21Z<p>Benne: Created page with " This is the stub for a lab using the online black body tool and astronomical filters [http://zoo1.galaxyzoo.org The Original GalaxyZoo] == Getting Started == Open the b..."</p>
<hr />
<div><br />
This is the stub for a lab using the online black body tool and astronomical filters <br />
<br />
<br />
[http://zoo1.galaxyzoo.org The Original GalaxyZoo]<br />
<br />
<br />
== Getting Started ==<br />
<br />
Open the black body online tool: [https://www.zooniverse.org/projects/zooniverse/galaxy-zoo-in-astronomy-101/classify?_ga=2.138812403.1378725426.1566591076-130134216.1538484933 Galaxy Zoo 101 PHYS 108 2019F Home Page]<br />
Make sure that Flash runs ok with the current browser etc. <br />
<br />
<br />
== Questions ==<br />
<br />
''1. How many galaxies did you classify''<br />
<br />
''</div>Bennehttps://prancer.physics.louisville.edu/astrowiki/index.php?title=Elementary_Astronomy_Laboratory_Activities&diff=2577Elementary Astronomy Laboratory Activities2019-08-26T17:14:02Z<p>Benne: /* New Labs */</p>
<hr />
<div>These activities for an Elementary Astronomy Lab were used in classes on campus at the University of Louisville in evolving forms from 1972 - 2017. This page is not currently being updated.<br />
<br />
Many of these now have mentored versions for labs that are offered [http://prancer.physics.louisville.edu/moodle on-line] as part of our new Distance Education program. More information is available on request by sending an email to ''kielkopf at louisville dot edu''.<br />
<br />
<br />
<br />
[http://prancer.physics.louisville.edu/astrowiki/index.php/Identify_Constellations Identify Constellations ]<br />
<br />
[http://prancer.physics.louisville.edu/astrowiki/index.php/Immersive_Video_Wall About the Video Room]<br />
<br />
[http://prancer.physics.louisville.edu/astrowiki/index.php/Watch_the_Sky Watch the Sky (Planetarium session not currently offered)]<br />
<br />
[http://prancer.physics.louisville.edu/astrowiki/index.php/Under_Namibian_Skies Under Namibian Skies (immersive visualization)]<br />
<br />
[http://prancer.physics.louisville.edu/astrowiki/index.php/Night_Sky Night Sky Tonight Using Stellarium (immersive visualization)] <br />
<br />
[http://prancer.physics.louisville.edu/astrowiki/index.php/Remote_Telescope_Requests Use a Remote Telescope: Requests] and<br />
<br />
[http://prancer.physics.louisville.edu/astrowiki/index.php/Remote_Telescope_Results Analyze Request Results]<br />
<br />
Travel to Mars, Jupiter, Saturn, and Uranus (immersive visualization)<br />
<br />
Survey galaxies in the universe (immersive visualization)<br />
<br />
[http://prancer.physics.louisville.edu/astrowiki/index.php/Survey_Galaxies_in_Virgo Survey Galaxies in Virgo]<br />
<br />
[http://prancer.physics.louisville.edu/astrowiki/index.php/The_Earth_Rotates The Earth Rotates]<br />
<br />
[http://prancer.physics.louisville.edu/astrowiki/index.php/Our_Dynamic_Sun Our Dynamic Sun (may use the roof top solar telescope)]<br />
<br />
[http://prancer.physics.louisville.edu/astrowiki/index.php/Light_and_Telescopes Light and Telescopes]<br />
<br />
[http://prancer.physics.louisville.edu/astrowiki/index.php/Experiment_with_CCD_Camera_Images Experiment with CCD Camera Images]<br />
<br />
[http://prancer.physics.louisville.edu/astrowiki/index.php/Use_a_CCD_Camera Use a CCD Camera]<br />
<br />
[http://prancer.physics.louisville.edu/astrowiki/index.php/Spectra Spectra]<br />
<br />
Observing planets and the Moon with a telescope (live remote or with the telescope on the roof)<br />
<br />
[http://prancer.physics.louisville.edu/astrowiki/index.php/Explore_Mars Explore Mars] (may use immersive visualiztion)<br />
<br />
[http://prancer.physics.louisville.edu/astrowiki/index.php/Observe_Satellites_of_Jupiter_and_Saturn Observe Satellites of Jupiter, Saturn and Uranus]<br />
<br />
[http://prancer.physics.louisville.edu/astrowiki/index.php/Follow_Proxima_Centauri Follow Proxima Centauri]<br />
<br />
Brightnesses and colors of stars in Messier 34<br />
<br />
[http://prancer.physics.louisville.edu/astrowiki/index.php/Variable_Stars_in_Messier_3 Variable Stars in Messier 3]<br />
<br />
[http://prancer.physics.louisville.edu/astrowiki/index.php/Measure_a_Nearby_Supernova Measure a Nearby Supernova]<br />
<br />
[http://prancer.physics.louisville.edu/astrowiki/index.php/Track_Cosmic_Rays_in_a_Cloud_Chamber Track Cosmic Rays in a Cloud Chamber]<br />
<br />
== New Labs ==<br />
<br />
[http://prancer.physics.louisville.edu/astrowiki/index.php/FLIR_Camera The iPad and infrared camera]</div>Bennehttps://prancer.physics.louisville.edu/astrowiki/index.php?title=Elementary_Astronomy_Laboratory_Activities&diff=2576Elementary Astronomy Laboratory Activities2019-08-26T17:13:52Z<p>Benne: </p>
<hr />
<div>These activities for an Elementary Astronomy Lab were used in classes on campus at the University of Louisville in evolving forms from 1972 - 2017. This page is not currently being updated.<br />
<br />
Many of these now have mentored versions for labs that are offered [http://prancer.physics.louisville.edu/moodle on-line] as part of our new Distance Education program. More information is available on request by sending an email to ''kielkopf at louisville dot edu''.<br />
<br />
<br />
<br />
[http://prancer.physics.louisville.edu/astrowiki/index.php/Identify_Constellations Identify Constellations ]<br />
<br />
[http://prancer.physics.louisville.edu/astrowiki/index.php/Immersive_Video_Wall About the Video Room]<br />
<br />
[http://prancer.physics.louisville.edu/astrowiki/index.php/Watch_the_Sky Watch the Sky (Planetarium session not currently offered)]<br />
<br />
[http://prancer.physics.louisville.edu/astrowiki/index.php/Under_Namibian_Skies Under Namibian Skies (immersive visualization)]<br />
<br />
[http://prancer.physics.louisville.edu/astrowiki/index.php/Night_Sky Night Sky Tonight Using Stellarium (immersive visualization)] <br />
<br />
[http://prancer.physics.louisville.edu/astrowiki/index.php/Remote_Telescope_Requests Use a Remote Telescope: Requests] and<br />
<br />
[http://prancer.physics.louisville.edu/astrowiki/index.php/Remote_Telescope_Results Analyze Request Results]<br />
<br />
Travel to Mars, Jupiter, Saturn, and Uranus (immersive visualization)<br />
<br />
Survey galaxies in the universe (immersive visualization)<br />
<br />
[http://prancer.physics.louisville.edu/astrowiki/index.php/Survey_Galaxies_in_Virgo Survey Galaxies in Virgo]<br />
<br />
[http://prancer.physics.louisville.edu/astrowiki/index.php/The_Earth_Rotates The Earth Rotates]<br />
<br />
[http://prancer.physics.louisville.edu/astrowiki/index.php/Our_Dynamic_Sun Our Dynamic Sun (may use the roof top solar telescope)]<br />
<br />
[http://prancer.physics.louisville.edu/astrowiki/index.php/Light_and_Telescopes Light and Telescopes]<br />
<br />
[http://prancer.physics.louisville.edu/astrowiki/index.php/Experiment_with_CCD_Camera_Images Experiment with CCD Camera Images]<br />
<br />
[http://prancer.physics.louisville.edu/astrowiki/index.php/Use_a_CCD_Camera Use a CCD Camera]<br />
<br />
[http://prancer.physics.louisville.edu/astrowiki/index.php/Spectra Spectra]<br />
<br />
Observing planets and the Moon with a telescope (live remote or with the telescope on the roof)<br />
<br />
[http://prancer.physics.louisville.edu/astrowiki/index.php/Explore_Mars Explore Mars] (may use immersive visualiztion)<br />
<br />
[http://prancer.physics.louisville.edu/astrowiki/index.php/Observe_Satellites_of_Jupiter_and_Saturn Observe Satellites of Jupiter, Saturn and Uranus]<br />
<br />
[http://prancer.physics.louisville.edu/astrowiki/index.php/Follow_Proxima_Centauri Follow Proxima Centauri]<br />
<br />
Brightnesses and colors of stars in Messier 34<br />
<br />
[http://prancer.physics.louisville.edu/astrowiki/index.php/Variable_Stars_in_Messier_3 Variable Stars in Messier 3]<br />
<br />
[http://prancer.physics.louisville.edu/astrowiki/index.php/Measure_a_Nearby_Supernova Measure a Nearby Supernova]<br />
<br />
[http://prancer.physics.louisville.edu/astrowiki/index.php/Track_Cosmic_Rays_in_a_Cloud_Chamber Track Cosmic Rays in a Cloud Chamber]<br />
<br />
=== New Labs ===<br />
<br />
[http://prancer.physics.louisville.edu/astrowiki/index.php/FLIR_Camera The iPad and infrared camera]</div>Bennehttps://prancer.physics.louisville.edu/astrowiki/index.php?title=Galaxyzoo&diff=2575Galaxyzoo2019-08-26T17:13:13Z<p>Benne: </p>
<hr />
<div><br />
This is the stub for a lab using the online galaxy zoo; Galaxy Morphologies <br />
<br />
The GalaxyZoo was one of the first "Citizen Science" projects that asked the public to help scientist examine and classify specimens, in this case images of galaxies from the Sloan Digital Sky Survey, the first big digital color image of the Northern sky.<br />
<br />
The expected total classification count is calculated as the number of required classifications per student multiplied by the number of students in the class. For the Galaxy Zoo 101 project, 22 classifications per student are required.<br />
<br />
[http://zoo1.galaxyzoo.org The Original GalaxyZoo]<br />
<br />
It found out many new things about galaxies (red spirals! Blue Ellipticals! What is this weird green thing?) and many new editions appeared. Other citizen science is now being done under the Zooniverse umbrella [https://www.zooniverse.org Zooniverse]<br />
ranging from zoology, historical weather patterns many more astronomy projects.<br />
<br />
== Getting Started ==<br />
<br />
<br />
1. Go to the class link here: [https://www.zooniverse.org/projects/zooniverse/galaxy-zoo-in-astronomy-101/classify?_ga=2.138812403.1378725426.1566591076-130134216.1538484933 Galaxy Zoo 101 PHYS 108 2019F Home Page]<br />
<br />
2. make a login with your student ID. <br />
<br />
3. start classifying galaxies! <br />
<br />
== Questions ==<br />
<br />
''1. How many galaxies did you classify''<br />
<br />
''2. Did you get many artifacts? Why do you think those are still in there?''<br />
<br />
''3. What color were the spiral galaxies?''<br />
<br />
''4. What color were any elliptical galaxies you saw?''<br />
<br />
''5. Do spiral galaxies always look like a round disk? Explain your answer.''<br />
<br />
''6.</div>Bennehttps://prancer.physics.louisville.edu/astrowiki/index.php?title=Galaxyzoo&diff=2574Galaxyzoo2019-08-26T16:55:30Z<p>Benne: </p>
<hr />
<div><br />
This is the stub for a lab using the online galaxy zoo; Galaxy Morphologies <br />
<br />
The GalaxyZoo was one of the first "Citizen Science" projects that asked the public to help scientist examine and classify specimens, in this case images of galaxies from the Sloan Digital Sky Survey, the first big digital color image of the Northern sky.<br />
<br />
The expected total classification count is calculated as the number of required classifications per student multiplied by the number of students in the class. For the Galaxy Zoo 101 project, 22 classifications per student are required.<br />
<br />
[https://www.zooniverse.org/projects/zooniverse/galaxy-zoo-in-astronomy-101/classify?_ga=2.138812403.1378725426.1566591076-130134216.1538484933 Galaxy Zoo 101 PHYS 108 2019F Home Page]<br />
<br />
<br />
== Getting Started ==<br />
<br />
<br />
1. Go to the link above<br />
<br />
2. make a login with your student ID. <br />
<br />
3. start classifying galaxies!<br />
<br />
== Questions ==<br />
<br />
''1. How many galaxies did you classify''<br />
<br />
''2. Did you get many artifacts? Why are those still in there?''<br />
<br />
''3.</div>Bennehttps://prancer.physics.louisville.edu/astrowiki/index.php?title=Galaxyzoo&diff=2573Galaxyzoo2019-08-26T16:52:46Z<p>Benne: Created page with " This is the stub for a lab using the online galaxy zoo; Galaxy Morphologies [https://www.zooniverse.org/projects/zooniverse/galaxy-zoo-in-astronomy-101/classify?_ga=2.1388..."</p>
<hr />
<div><br />
This is the stub for a lab using the online galaxy zoo; Galaxy Morphologies <br />
<br />
<br />
[https://www.zooniverse.org/projects/zooniverse/galaxy-zoo-in-astronomy-101/classify?_ga=2.138812403.1378725426.1566591076-130134216.1538484933 Galaxy Zoo 101 PHYS 108 2019F Home Page]<br />
<br />
<br />
== Getting Started ==<br />
<br />
<br />
1. Go to the link above<br />
<br />
2. make a login with your student ID. <br />
<br />
3. start classifying galaxies!<br />
<br />
== Questions ==<br />
<br />
''1. How many galaxies did you classify''<br />
<br />
''2. Did you get many artifacts? Why are those still in there?''<br />
<br />
''3.</div>Bennehttps://prancer.physics.louisville.edu/astrowiki/index.php?title=HubblesLaw_galaxyzoo&diff=2569HubblesLaw galaxyzoo2019-08-26T13:05:25Z<p>Benne: Created page with " This is the stub for a lab using the online galaxy zoo; Hubble's Law [https://www.zooniverse.org/projects/zooniverse/galaxy-zoo-in-astronomy-101/classify?_ga=2.138812403.1..."</p>
<hr />
<div><br />
This is the stub for a lab using the online galaxy zoo; Hubble's Law <br />
<br />
<br />
[https://www.zooniverse.org/projects/zooniverse/galaxy-zoo-in-astronomy-101/classify?_ga=2.138812403.1378725426.1566591076-130134216.1538484933 Galaxy Zoo 101 PHYS 108 2019F Home Page]<br />
<br />
<br />
== Getting Started ==<br />
<br />
<br />
1. Go to the link above<br />
<br />
2. make a login with your student ID. <br />
<br />
3. start classifying galaxies!<br />
<br />
== Questions ==<br />
<br />
''1. How many galaxies did you classify''<br />
<br />
''2. Did you get many artifacts? Why are those still in there?''<br />
<br />
''3.</div>Bennehttps://prancer.physics.louisville.edu/astrowiki/index.php?title=ISPEX&diff=2568ISPEX2019-08-23T19:55:14Z<p>Benne: </p>
<hr />
<div><br />
<br />
This is the stub for a lab using the iSPEX smartphone spectrograph.<br />
<br />
[http://ispex-eu.org iSPEX European Project]<br />
<br />
<br />
== Getting Started ==<br />
<br />
<br />
<br />
== Questions ==<br />
<br />
''1. ''</div>Bennehttps://prancer.physics.louisville.edu/astrowiki/index.php?title=ISPEX&diff=2567ISPEX2019-08-23T19:55:05Z<p>Benne: </p>
<hr />
<div><br />
<br />
This is the stub for a lab using the iSPEX smartphone spectrograph.<br />
<br />
[http://ispex-eu.org iSPEX European Project]<br />
<br />
<br />
== Getting Started ==<br />
<br />
<br />
<br />
=== Questions ===<br />
<br />
''1. ''</div>Bennehttps://prancer.physics.louisville.edu/astrowiki/index.php?title=ISPEX&diff=2566ISPEX2019-08-23T19:54:51Z<p>Benne: Created page with " This is the stub for a lab using the iSPEX smartphone spectrograph. [http://ispex-eu.org iSPEX European Project] === Getting Started === === Questions === ''1. ''"</p>
<hr />
<div><br />
<br />
This is the stub for a lab using the iSPEX smartphone spectrograph.<br />
<br />
[http://ispex-eu.org iSPEX European Project]<br />
<br />
<br />
=== Getting Started ===<br />
<br />
<br />
<br />
=== Questions ===<br />
<br />
''1. ''</div>Bennehttps://prancer.physics.louisville.edu/astrowiki/index.php?title=Elementary_Astronomy_Laboratory_Activities&diff=2565Elementary Astronomy Laboratory Activities2019-08-23T19:52:52Z<p>Benne: </p>
<hr />
<div>These activities for an Elementary Astronomy Lab were used in classes on campus at the University of Louisville in evolving forms from 1972 - 2017. This page is not currently being updated.<br />
<br />
Many of these now have mentored versions for labs that are offered [http://prancer.physics.louisville.edu/moodle on-line] as part of our new Distance Education program. More information is available on request by sending an email to ''kielkopf at louisville dot edu''.<br />
<br />
<br />
<br />
[http://prancer.physics.louisville.edu/astrowiki/index.php/Identify_Constellations Identify Constellations ]<br />
<br />
[http://prancer.physics.louisville.edu/astrowiki/index.php/Immersive_Video_Wall About the Video Room]<br />
<br />
[http://prancer.physics.louisville.edu/astrowiki/index.php/Watch_the_Sky Watch the Sky (Planetarium session not currently offered)]<br />
<br />
[http://prancer.physics.louisville.edu/astrowiki/index.php/Under_Namibian_Skies Under Namibian Skies (immersive visualization)]<br />
<br />
[http://prancer.physics.louisville.edu/astrowiki/index.php/Night_Sky Night Sky Tonight Using Stellarium (immersive visualization)] <br />
<br />
[http://prancer.physics.louisville.edu/astrowiki/index.php/Remote_Telescope_Requests Use a Remote Telescope: Requests] and<br />
<br />
[http://prancer.physics.louisville.edu/astrowiki/index.php/Remote_Telescope_Results Analyze Request Results]<br />
<br />
Travel to Mars, Jupiter, Saturn, and Uranus (immersive visualization)<br />
<br />
Survey galaxies in the universe (immersive visualization)<br />
<br />
[http://prancer.physics.louisville.edu/astrowiki/index.php/Survey_Galaxies_in_Virgo Survey Galaxies in Virgo]<br />
<br />
[http://prancer.physics.louisville.edu/astrowiki/index.php/The_Earth_Rotates The Earth Rotates]<br />
<br />
[http://prancer.physics.louisville.edu/astrowiki/index.php/Our_Dynamic_Sun Our Dynamic Sun (may use the roof top solar telescope)]<br />
<br />
[http://prancer.physics.louisville.edu/astrowiki/index.php/Light_and_Telescopes Light and Telescopes]<br />
<br />
[http://prancer.physics.louisville.edu/astrowiki/index.php/Experiment_with_CCD_Camera_Images Experiment with CCD Camera Images]<br />
<br />
[http://prancer.physics.louisville.edu/astrowiki/index.php/Use_a_CCD_Camera Use a CCD Camera]<br />
<br />
[http://prancer.physics.louisville.edu/astrowiki/index.php/Spectra Spectra]<br />
<br />
Observing planets and the Moon with a telescope (live remote or with the telescope on the roof)<br />
<br />
[http://prancer.physics.louisville.edu/astrowiki/index.php/Explore_Mars Explore Mars] (may use immersive visualiztion)<br />
<br />
[http://prancer.physics.louisville.edu/astrowiki/index.php/Observe_Satellites_of_Jupiter_and_Saturn Observe Satellites of Jupiter, Saturn and Uranus]<br />
<br />
[http://prancer.physics.louisville.edu/astrowiki/index.php/Follow_Proxima_Centauri Follow Proxima Centauri]<br />
<br />
Brightnesses and colors of stars in Messier 34<br />
<br />
[http://prancer.physics.louisville.edu/astrowiki/index.php/Variable_Stars_in_Messier_3 Variable Stars in Messier 3]<br />
<br />
[http://prancer.physics.louisville.edu/astrowiki/index.php/Measure_a_Nearby_Supernova Measure a Nearby Supernova]<br />
<br />
[http://prancer.physics.louisville.edu/astrowiki/index.php/Track_Cosmic_Rays_in_a_Cloud_Chamber Track Cosmic Rays in a Cloud Chamber]<br />
<br />
[http://prancer.physics.louisville.edu/astrowiki/index.php/FLIR_Camera The iPad and infrared camera]</div>Bennehttps://prancer.physics.louisville.edu/astrowiki/index.php?title=FLIR_Camera&diff=2564FLIR Camera2019-08-23T19:51:42Z<p>Benne: </p>
<hr />
<div>This session is to help you learn to use the FLIR camera together with the iPad to image infrared radiation.<br />
<br />
[https://www.flir.com FLIR.com] - the manufacturer of FLIR cameras.<br />
<br />
<br />
<br />
== Getting Started ==<br />
<br />
1. Switch on FLIR camera (top button) and iPad. <br />
<br />
2. navigate to the FLIR app. <br />
<br />
3. test connection by looking around the room.<br />
<br />
== Questions ==<br />
<br />
''1. What color corresponds to warm objects? How warm are these objects?''<br />
<br />
''2. What color corresponds to cold temperatures? How cold are these?''<br />
<br />
''2. What part of your face is warmest?''<br />
<br />
''3. What part of you looks colder than your face?''<br />
<br />
''4. Why do you think that part is colder?''<br />
<br />
''5. What is the hottest thing in the room?''<br />
<br />
''6. Is there anything changing temperature in the room? What is it? Heating up or cooling down?''<br />
<br />
''7. Can you see hot or cold air come into the room from outside (look around the windows or doors)?''<br />
<br />
''8. Hold your hand onto a metal object for a minute and remove. Can you see an effect on the FLIR image? ''<br />
<br />
''9. Hold your hand on a wooden desk for a minute. Can you see something on the FLIR camera after you take your hand away? Can you explain why?''<br />
<br />
''10. What kind of things could you see if the FLIR camera was mounted on a telescope?''<br />
<br />
''11. Point the FLIR camera at the outside and describe what you see.''<br />
<br />
''12. Is it a hot day or a cool one? What inanimate objects are warmer/cooler than ambient temperature and why?''<br />
<br />
''13. Is the sky cold or warm?''<br />
<br />
''14. The coolest stars are 500K. and the hottest 10.000K. Which can you see with the FLIR camera?''<br />
<br />
''15. Can you think of an industrial use of this camera?''</div>Bennehttps://prancer.physics.louisville.edu/astrowiki/index.php?title=FLIR_Camera&diff=2563FLIR Camera2019-08-23T19:43:23Z<p>Benne: Replaced content with "This session is to help you learn to use the FLIR camera together with the iPad to image infrared radiation. [https://www.flir.com FLIR.com] - the manufacturer of FLIR..."</p>
<hr />
<div>This session is to help you learn to use the FLIR camera together with the iPad to image infrared radiation.<br />
<br />
[https://www.flir.com FLIR.com] - the manufacturer of FLIR cameras.<br />
<br />
<br />
<br />
== Getting Started ==<br />
<br />
1. Switch on FLIR camera (top button) and iPad. <br />
<br />
2. navigate to the FLIR app. <br />
<br />
3. test connection by looking around the room.<br />
<br />
== Questions ==<br />
<br />
''1. What color is warm? What color corresponds to cold temperatures? ''<br />
<br />
''2. What part of your face is warmest?<br />
<br />
''3. What part of you looks colder than your face?<br />
<br />
''4. Why do you think that part is colder?<br />
<br />
''5. What is the hottest thing in the room?<br />
<br />
Is there anything changing temperature in the room? What is it? Heating up or cooling down?<br />
<br />
Can you see hot or cold air come into the room from outside (look around the windows)?<br />
<br />
Hold your hand onto a metal object for a minute. Can you see an effect on the FLIR image? Hold your hand on a wooden desk for a minute. Can you see something on the FLIR camera after you take your hand away? Can you explain why?<br />
<br />
What kind of thing could you see if the FLIR camera was mounted on a telescope?<br />
<br />
<br />
Point the FLIR camera at the sky and describe what you see.</div>Bennehttps://prancer.physics.louisville.edu/astrowiki/index.php?title=FLIR_Camera&diff=2562FLIR Camera2019-08-23T19:37:51Z<p>Benne: Created page with "This session is to help you learn to identify bright stars and constellations in the night sky. These resources may be useful in the lab, or for later study. [http://pran..."</p>
<hr />
<div>This session is to help you learn to<br />
identify bright stars and constellations in the night sky. These resources may be useful in the lab, or for later study.<br />
<br />
<br />
[http://prancer.physics.louisville.edu/classes/108/star_charts/SFAStarChartsPro.pdf Free star chart for anywhere at any time]<br />
<br />
[http://www.skymaps.com/ Sky maps by the month]<br />
<br />
[https://in-the-sky.org/ What's in the sky tonight?]<br />
<br />
[http://www.heavens-above.com/ Tonight's sky including artificial satellites] <br />
<br />
[http://www.skyandtelescope.com/observing/ataglance Weekly sky guide and news]<br />
<br />
For your laptop, home computer, cell phone, or tablet there are many choices. <br />
<br />
[http://www.stellarium.org/ Beautiful Stellarium is free planetarium software for Windows, Mac, or Linux operating systems]. It is also available as a [https://play.google.com/store/apps/details?id=com.noctuasoftware.stellarium&hl=en paid application for Android handheld devices]. <br />
<br />
The free [https://play.google.com/store/apps/details?id=com.google.android.stardroid Google Sky Map for Android] works well, and makes use of Android device's navigation to interact with your real sky. <br />
<br />
iTunes also offers a [https://itunes.apple.com/us/app/sky-map/id536492883?mt=8 Sky Map for iPhone and iPad] for a fee.<br />
<br />
If want to pursue this and learn the night sky well, old technology works great. Consider getting a <br />
[http://prancer.physics.louisville.edu/classes/107/topics/planisphere/index.html planisphere star finder], a rotating<br />
map of the sky that will show you how it appears on any date and time. <br />
<br />
This lab will use Stellarium to help you learn to identify some of the prominent constellations and bright stars. If you have a Planisphere or one of the other applications on your handheld device or laptop, use it too.<br />
<br />
== Getting Started ==<br />
<br />
First, there are a few things you need to know about using Stellarium. You might look at the Stellarium [http://www.stellarium.org/wiki/index.php/Interface_Guide#Tour Tour] on their website for an overview and reference to these options: <br />
<br />
<br />
'''''Screen mode'''''<br />
<br />
Stellarium starts in full screen mode and will cover everything. You can change this by pressing the F11 key to fit it into a smaller window. <br />
<br />
<br />
<br />
'''''Menu bars'''''<br />
<br />
There are two bars of menus, one at the bottom of the screen, and one on the left. They are hidden until you run the mouse down to the bottom or over to the left. <br />
<br />
<br />
<br />
'''''Quitting''''' <br />
<br />
When you or done, you can use the bottom menu bar to exit by selecting the off button.<br />
<br />
<br />
<br />
'''''Setting your location''''' <br />
<br />
By default you will be in Paris, France. If you press F6 the location menu will pop up and you can select your city or put in longitude and latitude. Once you have done this and saved the configuration, Stellarium will come up at your chosen site. The location menu is also in the left menubar under the compass icon at the top left. When you have selected your location the menu will show a map of Earth with an arrow pointing to your site. <br />
<br />
<br />
<br />
'''''Setting the time''''' <br />
<br />
Stellarium starts with the sky over your site at this very moment. The date and time will show at the lower right, based on the computer's clock. This time is the local time at your computer. If you change your location, the time shown will still be the time at your computer, not the time at the new site. For example, if you are in Baltimore, Maryland and you set up Stellarium for that site, then the computer is in the Eastern U.S. time zone. When you run Stellarium at 3 PM it will show the afternoon daytime sky with the Sun. Should you use the location menu to change to Rome, Italy, the sky will go dark because it's nighttime there. The clock will still show 3 PM because that's the time where you are. You can change the date and time in two ways. One is with the time menu selected from the left menu bar Clock icon. The other is with the two arrow icons at the right of the bottom menu bar. These speed forward-reverse, real time rate, and now buttons let you speed up the daily motions of the sky, and then slow them down again when you have the events in view you want to see. <br />
<br />
<br />
<br />
'''''Looking around''''' <br />
<br />
Change the direction you are looking by holding down the left mouse button and dragging your direction of view, or by using the updown leftright arrow keys on the keyboard. <br />
<br />
<br />
<br />
'''''Identifying planets, stars, and constellations'''''<br />
<br />
The lower menu offers options to add labels. By default the planets will be named, and you can turn this off using the Planets labels icon that looks like Saturn. You can outline the bright stars of the constellations, add constellation names, and even overlay mythological figures to help you see the patterns by clicking on the various buttons in this menu. There are two celestial grids offered too that show the equatorial celestial coordinates of stars (right ascension and declination), and the local sky coordinates (altitude and azimuth). A menu on the left for <br />
<br />
<br />
<br />
'''''Sky and viewing options''''' <br />
<br />
allows you to change the constellations, names and associated cultural folklore. Click that option, select <br />
<br />
<br />
<br />
'''''Starlore and Western'''''<br />
<br />
to see the the typical sky labels of American and European culture, or change to one of the others offered to see the diversity of named patterns in the sky. The same menu under <br />
<br />
<br />
<br />
'''''Markings ''''' <br />
<br />
lets you select whether you would also like to see the constellation boundaries as red dotted lines. Sometimes it's helpful to see these in order to identify the constellation in which a particular object is located. <br />
<br />
<br />
<br />
'''''Identifying an object''''' <br />
<br />
Move the mouse over the object and click with the left button to have its identification displayed. Click with the right button to make this go away. Click with the center button (press down on the<br />
mouse wheel) to have the display center on this object after you have selected it. <br />
<br />
<br />
<br />
'''''Zooming in and out ''''' <br />
<br />
<br />
The Page Up and Page Down <br />
keys on the keyboard zoom in and out of the sky. You can move around the zoomed in sky with the arrow keys or dragging with the left mouse button. The status display at the bottom of the view tells you the field of view <br />
<br />
<br />
<br />
'''''FOV''''' <br />
<br />
<br />
in degrees among other things. For some objects there is a photo that appears when the sky view is zoomed in close. When an object is selected and centered in the view, after zooming in the view will stay centered on it even as the day progresses. Think of it as a telescope that is pointing at your target, and tracking the target as the Earth rotates. <br />
<br />
<br />
<br />
'''''Finding Planets''''' <br />
<br />
The Moon and planets will be labeled by default. You can turn these names off with the P or by clicking on the Planet icon on the lower menu bar. If you select a planet with a left mouse click, the sky view will lockto that planet and you can follow it during the night. Planets with satellites like Jupiter will show the satellites as they really would appear in a telescope, and in motion in their orbits around the planet. <br />
<br />
You can find a planet or other objects by using the <br />
<br />
<br />
<br />
'''''Search window'''''<br />
<br />
The left menu has a Magnifying glass icon that brings up this option. So does F3.<br />
<br />
== Finding Stars and Constellations ==<br />
<br />
Stellarium starts with the sky as it is now, and you may run the clock forward or set the time for about an hour after sunset to see the night sky for the current season. In this lab study we will go through the seasons in sequence for the northern and the southern hemisphere, and help you find your way around the sky. The goal is to learn a few bright stars and constellations, seen from any place on Earth, and at any time of year. <br />
<br />
It's daunting task, and the patterns will at first seem confusing. We'll help you find the brightest stars, and some recognizable patterns. The key to learning this skill is to become accustomed to the patterns so that your mind's eye will recognize them, even in a sky filled with stars you do not know.At the bottom of this unit there is are lists of constellations and bright stars that are the most among the most recognizable for each each in both southern and northern hemispheres.<br />
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In another lab experiment we will focus on the sky tonight, and on the planets. This one is more general and explores the stars and constellations seen from different locations on Earth. You should set Stellarium to see the sky tonight in your own locatin to begin with, and we will advise on changing this as we go along.<br />
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== Bright Stars == <br />
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Winter begins in late December for the northern hemisphere, or late June for the southern hemisphere. You can consult the list of stars and constellations at the bottom of this unit to see what should be visible then. Let's set <br />
set the time to 7 P.M. on January 15, when the sky is dark and stars are clear and bright. If you are in the northern hemisphere make sure your location is set properly, turn your attention toward the southeast and look for the brightest stars. (If you are in the southern hemisphere, for the following pick a favorite spot a little north of the equator so that you can see stars you are familiar with, as well as the stars of the northern sky.) <br />
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Sirius, the brightest star in the sky will be rising at this time. Left click on it and you'll see information about it displayed: <br />
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*Names: Sirius (alpha Canis Majoris) HIP 32349 <br />
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Sirius is its common name. Alpha Canis Majoris means that it is the brightest star in Canis Major, the big dog. HIP 32349 means that it is the 32,349th star of the Hipparcos catalog. <br />
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*Magnitude: -1.45 (B-V: 0.00) <br />
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That's how bright it is on the astronomer's scale. Smaller numbers are brightest, larger ones fainter. Magnitude 6.0 is about as a faint a star as you can see without a telescope.<br />
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The magnitude scale is logarithmic, and a difference of 5 on this scale corresponds to a factor of 100x in energy received each second from the star. The B-V is a measure of color, and the 0.0 for Sirius means that it looks white to the eye. A positive number is red, and a negative number is blue. <br />
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*Distance: 8.60 light years <br />
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Sirius is 8.6 light years from the Sun. The light you see in the sky from Sirius tonight left it 8.6 years ago, when you were 8.6 years younger. Light leaving the star today will arrive in 8.6 years when you are 8.6 years older. <br />
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Find these other stars: Procyon, Rigel, Betelgeuse and Aldebaran. For each one, identify what constellation is it in, and how bright it is. <br />
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''1. What constellation are Rigel and Betelgeuse in?''<br />
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''2. What colors are these two stars?''<br />
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Let time go by and watch the stars move across the sky. <br />
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''3. Which of the stars Sirius, Procyon, Rigel, or Belegeuse is the one that gets highest in your sky during the night?'' <br />
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Notice the pattern of bright stars. These are the one's you'll see first in an urban sky. <br />
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Advance the date to March 5 and set the time again to about 2 hours after sunset. <br />
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''4. Where are Sirius, Procyon, Rigel, Betelgeuse and Aldebaran in the sky now, compared to where they were at the same <br />
time in January?''<br />
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Advance the date again to June 15 and now you'll see Deneb, Vega, and Altair rising in the east. Arcturus will be nearly overhead if you are in a northern latitude. During the night the stars will move across the sky <br />
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''5. About what time on June 15 will Vega be overhead?''<br />
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''6. What is the name of another bright star in the same constellation that Deneb is in?''<br />
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''7. Which one of these stars, Arcturus, Deneb, Vega, or Altair, is orange? That is, which one is a cool star of type K or M?'' <br />
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Go forward again to the fall, and set the date to September 15. Look directly overhead if you are at northern latitude. If you are elsewhere, to answer this question set your location to a northern latitude of around 40 degrees. Three of the stars that you have identified form a distinctive pattern overhead called the Summer Triangle.<br />
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''8. What are the three stars that define the "Summer Triangle" that is overhead in northern latitudes in late summer?<br />
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== Constellations ==<br />
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Turn off the equatorial grid if you still have it on, and turn on the constellation names and outlines (use the lower menu or press C and V). Let's find some of the easily identified constellations in the northern sky for each season. <br />
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*Set the date for January 15 at 10 P.M. <br />
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*Orion with very bright stars Betelgeuse and Rigel are in the sky at this time. <br />
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*Set the date for March 15 at 10 P.M. <br />
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*Gemini, the twins , with the pair of similar stars Castor and Pollux comes in to view.<br />
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*Set the date for June 15 at 10 P.M. <br />
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*Leo, the lion, with the bright star Regulus is visible. <br />
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*Set the date for September 15 at 10 P.M. <br />
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*You will see Sagittarius, the archer, that looks like a teapot. <br />
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*Set the date for November 15 at 10 P.M. <br />
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''9. Where is Pegasus, the horse, at this time?''<br />
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Stellarium lets you look at fainter stars, clusters of stars, nebulae, and galaxies too. See if you can find [http://en.wikipedia.org/wiki/Messier_15 Messier 15] (M15) in Pegasus. It is a globular star cluster about 12 billion years old containing more than 100,000 stars. M15 is about 33,000 light years away, much farther than the nearby stars that define the constellations in the night sky. <br />
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''10. <br />
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What color is warm? What color corresponds to cold temperatures?<br />
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What part of your face is warmest?<br />
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What part of you looks colder than your face?<br />
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Why do you think that part is colder?<br />
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What is the hottest thing in the room?<br />
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Is there anything changing temperature in the room? What is it? Heating up or cooling down?<br />
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Can you see hot or cold air come into the room from outside (look around the windows)?<br />
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Hold your hand onto a metal object for a minute. Can you see an effect on the FLIR image? Hold your hand on a wooden desk for a minute. Can you see something on the FLIR camera after you take your hand away? Can you explain why?<br />
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What kind of thing could you see if the FLIR camera was mounted on a telescope?<br />
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Point the FLIR camera at the sky and describe what you see.</div>Benne