Astrophotometrical

1 definition found

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  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.]