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Definition of apparent magnitude noun from the Oxford Advanced Learner's Dictionary

apparent magnitude

noun

/əˌpærənt ˈmæɡnɪtjuːd/

/əˌpærənt ˈmæɡnɪtuːd/

[countable, uncountable] (astronomy)

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a measure of how bright a star, planet, etc. is, as it is seen from the earth compare absolute magnitude

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See apparent magnitude in the Oxford Advanced American Dictionary

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