almucantar in Irish
almucantar in Irish
almacantar
(astronomy, archaic, or, historical) A small circle on the celestial sphere, parallel to the horizon, that is used in astronomy and navigation to show altitude of a star or any other heavenly body.
líne chomhthreomhar airde
(astronomy, archaic, or, historical) A small circle on the celestial sphere, parallel to the horizon, that is used in astronomy and navigation to show altitude of a star or any other heavenly body.