SG Heritage Dictionary

Almucantar [Noun] Webster's Dictionary 1828

1. A series of circles of the sphere passing through the center of the sun, or of a star, parallel to the horizon. It is synonymous with a parallel of altitude, whose common zenith is the vertical point.

2. ALMUCANTAR'S STAFF . An instrument of box or pear-tree, having an arch of fifteen degrees, used to take observations of the sun, about the time of its rising or setting, to find the amplitude and the variations of the compass.

Almucantar [Noun] Webster's Dictionary 1913

A small circle of the sphere parallel to the horizon; a circle or parallel of altitude. Two stars which have the same almucantar have the same altitude. See Almacantar.