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11 Cards in this Set
- Front
- Back
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What's are stars |
A luminous object made of gas |
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What is a nuclear reaction |
In a star a nuclear reaction is when 2 hydrogen atoms fuse and form helium |
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The stages of a star |
Formation Stable Red giant White dwarf |
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What is a galaxy |
A collection of billions of stars held together by gravity |
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What are the terrestrial planets |
Mercury Mars Earth Venus |
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What are the jovial planets |
Jupiter Neptune Uranus Saturn |
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What is the more common name for a planetoid |
Dwarf planet |
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What causes planets to orbit the sun |
Gravity |
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How many moons has jupiter |
79 |
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What is a.luminous object |
something that produces it own light and heat |
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What is a nebula |
A gas cloud in space |
