apparent magnitude
noun /əˌpærənt ˈmæɡnɪtjuːd/
/əˌpærənt ˈmæɡnɪtuːd/
[countable, uncountable] (astronomy- a measure of how bright a star, planet, etc. is, as it is seen from the earth
compare absolute magnitude视星等(从地球上观测到的天体的亮度等级)
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