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13 Cards in this Set
- Front
- Back
- 3rd side (hint)
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What is a black dwarf?
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The cold, dark, body that is the final stage in the life cycle of a low-mass star.
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cold and dark
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What is a black hole?
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an extremely dense, invisible object in space whose gravity is so great that not even light can escape it
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invisible object with great gravity
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what is a galaxy?
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a vast group of billions of stars that are held together by gravity
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ours is the milky way
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what is a light year
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a unit of measurement representing the distance that light travels in one year
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distance light travels
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what is a nebula?
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a huge cloud of dust and gas found in space
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dust and gas cloud
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what is a neutron star?
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the remains of a massive star that has exploded in a supernova
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an exploded star remains
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what is absolute magnitude?
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the measure of a star's brightness based on the amount of light it actually gives off
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how bright a star is
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what is apparent magnitude?
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the measure of a star's brightness as seen from Earth
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how bright a star looks
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what is the milky way galaxy?
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a gigantic cluster of billions of stars that is ome to our solar system
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our cluster of stars
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what is a protester?
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a concentration of matter found in space that is the beginning of a star
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a new born star
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what is a red giant?
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a very large old reddish star that has greatly expanded and cooled as its fuel has begun to run out
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a dying star
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what is a supernova?
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an exploding star
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a star that is exploding
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what is the universe?
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the sum of everything that exists
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everything
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