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A star's _______ brightness is the brightness seen by humans on Earth. A star's _______ brightness is its actual brightness and does not depend on where the star is viewed from.
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A star's _______ brightness is the brightness seen by humans on Earth. A star's _______ brightness is its actual brightness and does not depend on where the star is viewed from.

User Paul Santosh
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A star's apparent brightness is its brightness as seen from Earth. A star's absolute brightness results from the total energy it releases and does not depend on where the star is viewed from. To describe the absolute brightness of stars, astronomers measure the stars' apparent brightness as if they were all viewed from the same standard distance.

User Travis Jensen
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A star's apparent brightness is the brightness seen by humans on Earth. A star's absolute brightness is its actual brightness and does not depend on where the star is viewed from.

User TommyF
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