Editing 1297: Oort Cloud
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This video shows an animation of the encounter at the sun: [http://stereo-ssc.nascom.nasa.gov/browse/2013/11/28/ahead_20131128_cor2_rdiff_512.mpg ISON 28.11.2013]. | This video shows an animation of the encounter at the sun: [http://stereo-ssc.nascom.nasa.gov/browse/2013/11/28/ahead_20131128_cor2_rdiff_512.mpg ISON 28.11.2013]. | ||
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==Transcript== | ==Transcript== | ||
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:ISON (broken up, with multiple tails): Wow. Do '''''NOT''''' go over there. | :ISON (broken up, with multiple tails): Wow. Do '''''NOT''''' go over there. | ||
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+ | ==Perspective== | ||
+ | Some more information about comets will help put the comic in perspective: | ||
+ | *The surface of cometary nuclei reflects less sunlight than asphalt. Telescopes can't identify or find them until they have a coma. | ||
+ | *An object at a distance of one light-year would only have an orbital speed about 100 meters per second; the speed of the Earth is about 30 kilometers per second. | ||
+ | *One revolution at that distance would last approximately 20 million years. | ||
{{comic discussion}} | {{comic discussion}} | ||
[[Category:Astronomy]] | [[Category:Astronomy]] |