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A minute of arc or arcminute (arcmin) is a unit of angular measurement equal to 1/60 of one degree. Since one degree is 1/360 of a turn (or complete rotation), one minute of arc is 1/21600 of a turn (or, in radians, π/10800).
A turn is a unit of plane angle measurement equal to 2π radians, 360 degrees or 400 gradians. A turn is also referred to as a revolution or complete rotation or full circle or c ..more definition+
In relation to the base unit of [angle] => (radians), 1 Minute Of Arc (MOA) is equal to 0.000290888 radians, while 1 Turns (t) = 6.28319 radians.81 Minute Of Arc | to common angle units |
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81 MOA | = 0.023561928 radians (rad) |
81 MOA | = 23.561928 milliradians (mrad/mil) |
81 MOA | = 23.999975553808 angular mils (µ mil) |
81 MOA | = 1.3499989789445 degrees (°deg) |
81 MOA | = 1.4999989495774 gradians (grad) |
81 MOA | = 81 arcminutes (arcmin) |
81 MOA | = 4859.9963243613 arcseconds (arcsec) |
81 MOA | = 0.02249997421691 sextants (60°) |
81 MOA | = 0.044999862490451 signs (30°) |
81 MOA | = 0.0037499945091586 turns (t) |