a measuring instrument for measuring angles to a celestial body; similar to a sextant but with 45 degree calibration
The eighth part of a circle; an arc of 45 degrees.
: The eighth part of a disc; a sector of 45 degrees; half a quadrant.
: An instrument for measuring angles, particularly of elevation.
Origin: From octans
Traditionally wind direction is given as one of the 8 octants because that is more precise than merely giving one of the 4 quadrants, and the wind vane typically does not have enough accuracy to bother with more precise indication.
Chambers 20th Century Dictionary
ok′tant, n. the eighth part of a circle: an instrument for measuring angles: the aspect of two planets when 45°, or one-eighth of a circle, apart.—Also Oc′tile. [L. octans, octantis—octo, eight.]
The numerical value of octant in Chaldean Numerology is: 6
The numerical value of octant in Pythagorean Numerology is: 1
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