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This category is for informational sites only. Submit sites which purport to sell the names of stars to Shopping/Recreation/Science_and_Nature/Astronomy/Space_Novelties/Star_Names/ .
How stars get their names, and how they don't.
Evolution of stars, stages include: gas clouds, protostars, stages of burning hydrogen, helium, etc., white and brown dwarfs, red giants, supernovae, neutron stars, black holes.
Please only submit sites that contain information about variable stars.
Variable Stars are stars that change brightness. Their brightness can change from just a fraction (not even noticeable to the naked eye) up to 20 magnitudes. To get an idea of how much a magnitudes is, consider that the difference between brightest star one can see outside at night (in a fairly dark area) and the dimmest is about 6 magnitude. Over 300,000 variable stars are known and have been cataloged.
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Last update: Monday, July 1, 2013 6:05:02 AM EDT - edit