等級 (天文)
1. Apparent magnitudeThe apparent magnitude (m) of a celestial body is a measure of its brightness as seen by an observer on Earth, adjusted to the value it would have in the absence of the atmosphere. The brighter the object appears, the lower the value of its magnitude.
Read “Apparent magnitude” on English Wikipedia
Read “等級 (天文)” on Japanese Wikipedia
Read “Apparent magnitude” on DBpedia
Read “Apparent magnitude” on English Wikipedia
Read “等級 (天文)” on Japanese Wikipedia
Read “Apparent magnitude” on DBpedia
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