apparent magnitude

apparent magnitude
noun Date: 1785 the luminosity of a celestial body (as a star) as observed from the earth — compare absolute magnitude

New Collegiate Dictionary. 2001.

Look at other dictionaries:

  • Apparent magnitude — Magnitude Mag ni*tude, n. [L. magnitudo, from magnus great. See {Master}, and cf. {Maxim}.] 1. Extent of dimensions; size; applied to things that have length, breadth, and thickness. [1913 Webster] Conceive those particles of bodies to be so… …   The Collaborative International Dictionary of English

  • apparent magnitude — Magnitude Mag ni*tude, n. [L. magnitudo, from magnus great. See {Master}, and cf. {Maxim}.] 1. Extent of dimensions; size; applied to things that have length, breadth, and thickness. [1913 Webster] Conceive those particles of bodies to be so… …   The Collaborative International Dictionary of English

  • apparent magnitude — n. MAGNITUDE (sense 3) …   English World dictionary

  • Apparent magnitude — Asteroid 65 Cybele and 2 stars with their magnitudes labeled The apparent magnitude (m) of a celestial body is a measure of its brightness as seen by an observer on Earth, normalized to the value it would have in the absence of the atmosphere.… …   Wikipedia

  • apparent magnitude — noun : the observed or apparent brightness of a celestial body expressed on the magnitude scale and varying in accordance with the spectral sensitivity of the means of observing (as the eye, a photographic material, or an instrument) * * *… …   Useful english dictionary

  • apparent magnitude — Astron. the magnitude of a star as it appears to an observer on the earth. Cf. absolute magnitude. [1870 75] * * * …   Universalium

  • apparent magnitude — noun a numerical measure of the brightness of a star, planet etc.; a decrease of 1 unit represents an increase in the light received by a factor of 2.512 See Also …   Wiktionary

  • apparent magnitude — noun Astronomy the magnitude of a celestial object as it is measured from the earth …   English new terms dictionary

  • Apparent Magnitude —    The observed brightness of a star …   The writer's dictionary of science fiction, fantasy, horror and mythology

  • apparent diameter — Magnitude Mag ni*tude, n. [L. magnitudo, from magnus great. See {Master}, and cf. {Maxim}.] 1. Extent of dimensions; size; applied to things that have length, breadth, and thickness. [1913 Webster] Conceive those particles of bodies to be so… …   The Collaborative International Dictionary of English

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