...han 200 years, originate in the Kuiper Belt. Halley's Comet, which returns about once every 76 years, is a short period comet.
Halley's Comet which returns about every 76 years is a short period comet from the Kuiper Belt
15 KB (2,387 words) - 03:17, 24 July 2014
<center>'''You know about ZODIAC CONSTELLATIONS'''</center>
...Iraq thousands of years ago, precession has shifted the constellations by about a month. So the constellation you were born under is probably the sign for
10 KB (1,676 words) - 23:34, 7 January 2012
'''Small stars''', up to about 1.4 solar masses, collapse to become '''white dwarfs''' while quietly sendi
...nly enough of the star remains to form a neutron star ... but if more than about 2 times the mass of the Sun remains after the explosion, it collapses to be
17 KB (2,924 words) - 00:04, 28 February 2012
...cist-explains-why-parallel-universes-may-exist Interview with Brian Greene about Fabric of the Cosmos]
...zon.com/A-Short-History-Nearly-Everything/dp/0767908171 Delightful reading about A Short History of Nearly Everything, a Book by Bill Bryson]
4 KB (604 words) - 04:06, 12 August 2017
...://prancer.physics.louisville.edu/astrowiki/index.php/Immersive_Video_Wall About the Video Room]
3 KB (437 words) - 21:14, 1 January 2019
...he charcter goes immediately after the symbol "+" so there is no ambiguity about your intent. Also, the next line has to be indented because returning to t
Now we see how integers are stored in memory, what about floating point? Fortunately, we rarely need to know the details, except th
29 KB (4,874 words) - 21:20, 27 March 2018
...n the data set, taken on the night of October 5, 2010, at about 15:50 UTC (about 1:50 AM) by Dr. Rhodes Hart. Each one is a 30 second exposure -- short by
The Tarantula Nebula is about 170,000 light years away, in another galaxy. It's as far as our telescopes
17 KB (3,096 words) - 02:12, 3 October 2015
...s. Earth goes around the Sun twice as fast as Mars, lapping the Red Planet about every two years. Both planets have elliptical orbits, so their close encoun
''3. When is the next opposition of Mars, and about how many days are there from one opposition to the next?''
15 KB (2,643 words) - 03:34, 23 October 2013
...ittle ellipse in the sky about 1/1.3 arcseconds in semimajor axis, that is about 2/1.3 arcseconds across. As you will see soon, this is a very very small an
...as exactly the measured brightness at each pixel in the image, information about how the image was recorded, and a calibration that converts the position in
13 KB (2,346 words) - 07:38, 17 November 2015
about the origin of its unusual 5000 light year long jet of electrons.</center>
...the constellation Eridanus. It is over 100,000 light years across, and is about the same size as the Milky Way. It is unusual in that while it is a classic
23 KB (3,692 words) - 07:56, 27 March 2012
...r instance, to send a satellite beyond Earth we have to give it a speed of about 11 km/s. To escape the solar system from Earth's orbit takes 42 km/s, but t
...Take all the mass of the Sun, put it inside a sphere just 3 km in radius (about 2 milies), and it would be a black hole.
14 KB (2,446 words) - 17:56, 2 April 2012
...ably, as is good programming practice with other modules and to be clear about what is from tk use
If you want your program to inform its user about something, then use
38 KB (6,191 words) - 04:56, 11 April 2018
...rowser, which most users do by default, but some do not because of concern about security.
24 KB (4,014 words) - 14:12, 12 April 2018
...those planets. The images of Saturn returned by the Cassini satellite take about 1 hour and 23 minutes to travel 1,300,000,000 kilometers to reach us.
or about 150 million km, 93 million miles, 8.3 light minutes.
19 KB (3,164 words) - 04:18, 6 March 2012
First, there are a few things you need to know about using Stellarium. You might look at the Stellarium [http://www.stellarium.
...he 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
19 KB (3,198 words) - 04:22, 12 August 2017
# Print information about the image
...with 16 integer data bits per pixel. The other entries provide information about the image data. Therefore in dealing with FITS data we may need to change
36 KB (5,916 words) - 17:54, 14 April 2018
...rtently use. Remember that once the projectors are powered down, there is about a 15 minute delay before you can power them up again.
...or a techinician unless you have been taught how to do it. It also takes about 45 minutes, so in this state the system probably cannot be restored for stu
10 KB (1,766 words) - 04:55, 18 September 2013
...there are over 100 million rods and 6.5 million cones in a typical retina, about 100,000 per mm2.
The telescope is 8 inches (about 20 centimeters) in diameter. In perfectly still air under
22 KB (4,196 words) - 08:13, 30 January 2013
...nearest Earth. Since Earth orbits the Sun once a year, and Mars orbits in about 1.88 earth years (687 days), Mars and Earth are near one another only once
Also, a Martian day is about 24 1/2 hours, and the planet's axis tilts 25° compared to Earth's 23° til
15 KB (2,437 words) - 23:08, 23 July 2014
...the supernova in M101 that in 25 days the supernova drops in brightness by about 1.5 magnitudes. Although we did not capture this one at its maximum, we
10 KB (1,666 words) - 02:46, 4 October 2015