absolute brightness


Definition of absolute brightness

: absolute magnitude … a white supergiant 200 times wider and at least 160,000 times more luminous in absolute brightness than the sun …— Daniel H. Zantzinge, Daily Camera, 4 Sept. 2008

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First Known Use of absolute brightness

1800, in the meaning defined above

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The first known use of absolute brightness was in 1800

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Cite this Entry

“Absolute brightness.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/absolute%20brightness. Accessed 8 Aug. 2020.

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