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6 Cards in this Set
- Front
- Back
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__ __ is the brightness of a star as it appears to an observer on the earth.
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apparent magnitude
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The apparent magnitude depends on two things:
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1. actual brightness
2.distance from earth |
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______ developed a system of classifying stars by their brightness.
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Hipparchus
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The bright star, _____, a red star has apparent magnitude of .4.
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Betelgeuse
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The brightest star in the sky is _____, with an apparent magnitude of -1.5.
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Sirius
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The __ ___ of a star is the brightness that star would have if all stars were equal distance from the earth.
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absolute magnitude
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