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/ælməˈkæntə/ · noun
(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..
Almucantars, or parallels of altitude, are circles parallel to the horizon, or whose poles are the zenith and nadir. All the points of any one almucantar are at equal altitudes above the horizon.
A wide field of work appears open in the application of photography to meridian instruments, or to the almucantar. The sensitive plate should be substituted for the reticule, and the position marked by a graver attached to the tail-piece of the telescope.
Use almucantar when its meaning, tone and grammar fit the full sentence. A synonym is not always a direct replacement.
Almucantar means (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..
The closest synonym depends on the sentence and intended sense.
The opposite depends on the specific sense.
Almucantars, or parallels of altitude, are circles parallel to the horizon, or whose poles are the zenith and nadir. All the points of any one almucantar are at equal altitudes above the horizon.
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