Defn: See Astrofel. [Obs.]
ASTROPHOTOGRAPHY
As`tro*pho*tog"ra*phy, n. Etym: [Astro- + photography.]
Defn: The application of photography to the delineation of the sun, moon, and stars.
ASTROPHOTOMETER
As`tro*pho*tom"e*ter, n. [Pref. astro- + photometer.] (Astron.)
Defn: A photometer for measuring the brightness of stars.
ASTROPHOTOMETRY
As`tro*pho*tom"e*try, n. (Astron.)
Defn: The determination of the brightness of stars, and also of the sun, moon, and planets. —As`tro*pho`to*met"ric*al (#), a.
ASTROPHYSICAL
As`tro*phys"ic*al, a.
Defn: Pertaining to the physics of astronomical science.
ASTROPHYSICS
As`tro*phys"ics, n. [Astro-+ physics.] (Astron.)