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| The closest star to the Earth. |
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| A ball of hot glowing gas. Normally composed of hydrogen |
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| A star 100 times larger than the sun. Very luminous |
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| A star that is about the size of earth, is near the end of it's life cycle |
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| How far light travels in one year on earth. 9.4 trillion km |
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| A new star or baby star. Forms in nebula |
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| A small rapidly rotating neutron star. Emits a pulse. |
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| When an object is moving away from something it's light waves shift to the red end of the spectrum |
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| When an object is moving towards it waves move to the blue end of te spectrum |
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| A very large cloud f gas and dust in space |
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| A small dense star, remnants of. Super nova |
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| When two hydrogen fuse to make helium and energy. How stars make energy. |
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| The milky way is one. It looks like a whirlpool |
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| An elongated circle with no arms |
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| The study of things from outside of our atmosphere |
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| The totality f what is known to exist, everything |
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| Pioneer in the field of astronomy. |
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| Leading theory for the creation of the universe. |
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| Energy=mass times the speed of light squared |
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| The magnitude a star would appear if all stars were the same distance from the earth |
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| How bright a star appears from earth |
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| A star that was very large and collapsed in on it's own mass. |
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| A large system if stars held together by gravity. |
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| A system of planets and other objects in orbit around a star |
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| Star like in appearance. The farthest objects in the known universe. Very luminous. |
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