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parallel to the horizon; a circle or parallel of altitude. Two stars which have the same almucantar have the same altitude. See Almacantar. [Archaic] Almucanter staff, an ancient instrument, having an arc of fifteen degrees, formerly used at sea to take observations of the sun's amplitude at the time of its rising or…

Same as Almucantar.

f altitude (Astron.), one of the small circles of the sphere, parallel to the horizon; an almucantar. -- Parallel of declination (Astron.), one of the small circles of the sphere, parallel to the equator. -- Parallel of latitude. (a) (Geog.) See def. 6. above. (b) (Astron.) One of the small circles of the sphere, par…