apparent magnitudes

A form of apparent magnitude — a numerical measure of the brightness of a star, planet etc.; a star with apparent magnitude 0 gives an illuminance of 2.54 microlux just outside the earth's atmosphere, or 82% of that (2.08 microlux) under clear skies, and every increase of 1 unit represents a decrease in the light received by a factor of 2.512.

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Meanings

noun
  1. pluralplural of apparent magnitude
Cite this entry
APA

apparent magnitudes. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/apparent%20magnitudes

MLA

“apparent magnitudes.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/apparent%20magnitudes. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “apparent magnitudes,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/apparent%20magnitudes.

Source: apparent magnitudes on Wiktionary, CC BY-SA 4.0.