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10 Cards in this Set
- Front
- Back
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Absolute magnitude
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Measure of the amount of light a star actually gives off
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Apparent magnitude
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Measure the amount of light from a star that is received on earth
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Big Bang Theory
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States that about 13.7 billion years ago the universe began with a huge fury explosion
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Black hole
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Final stage in the evolution of a very massive star where the cores mass collapses to a point that its gravity is so strange that not even light can escape
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Chromosphere
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Layer of the sun's atmosphere above the photosphere
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Constellation
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Group of stars that forms a pattern in the sky that looks like a familiar object (Libra) ,animal (Pegasus ),or character (Orion)
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Corona
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02 most largest layer of the sun's atmosphere extends millions of kilometers into space and has temperature up to 2 million K
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Galaxy
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large group of stars,dust ,and gas held together by gravity can be elliptical, spiral and irregularly
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Giant
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Late stage of the life of comparatively Low mass main sequence star in which hydrogen in the core is deleted the core contract and temperature inside the star increase causing it's outer layer to expand and cool
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Light year
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Unit representing the distance light travels in one year above 9.5 trillion km used to record distance between stars and earthquakes
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