Astrophotometrical
Astrophotometry As`tro*pho*tom"e*try, n. (Astron.) The determination of the brightness of stars, and also of the sun, moon, and planets. -- {As`tro*pho`to*met"ric*al}, a. [Webster 1913 Suppl.]

The Collaborative International Dictionary of English. 2000.

Look at other dictionaries:

  • astrophotometry — astrophotometric /as troh foh teuh me trik/, astrophotometrical, adj. astrophotometrically, adv. /as troh foh tom i tree/, n. the measurement of the intensity of light of celestial objects. [ASTRO + PHOTOMETRY] * * * …   Universalium

  • Crab (unit) — A Crab is a standard astrophotometrical unit for measurement of the intensity of Astrophysical X ray sources.[1][2][3][4] One Crab is defined as the intensity of the Crab Nebula at the corresponding X ray energy. The name is derived from the Crab …   Wikipedia

  • astrophotometry — astrophotometric /as troh foh teuh me trik/, astrophotometrical, adj. astrophotometrically, adv. /as troh foh tom i tree/, n. the measurement of the intensity of light of celestial objects. [ASTRO + PHOTOMETRY] …   Useful english dictionary

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