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nebula dust
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Nebula Dust

Other nebulae may form as planetary nebulae. This is the final stage of a low-mass star's life, like Earth's Sun. Stars with a mass up to 8-10 solar masses evolve into red giants and slowly lose their outer layers during pulsations in their atmospheres. When a star has lost enough material, its temperature increases and the ultraviolet radiation it emits can ionize the surrounding nebula that it has thrown off. The nebula is 97% Hydrogen and 3% Helium with trace materials.
Types of nebulae

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Filename:377015.jpg
Album name:Earth & Universe
Rating (1 votes):55555
Keywords:#nebula #dust
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Date added:Apr 28, 2011
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