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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).
In relation to the base unit of [angle] => (radians), 1 Minute Of Arc (MOA) is equal to 0.000290888 radians, while 1 Diameter Parts (Ø part) = 0.01666666666 radians.| 978400 Minute Of Arc | to common angle units |
|---|---|
| 978400 MOA | = 284.6048192 radians (rad) |
| 978400 MOA | = 284604.8192 milliradians (mrad/mil) |
| 978400 MOA | = 289896.00101044 angular mils (µ mil) |
| 978400 MOA | = 16306.654333325 degrees (°deg) |
| 978400 MOA | = 18118.50583045 gradians (grad) |
| 978400 MOA | = 978400 arcminutes (arcmin) |
| 978400 MOA | = 58703955.601915 arcseconds (arcsec) |
| 978400 MOA | = 271.77746634352 sextants (60°) |
| 978400 MOA | = 543.55389457601 signs (30°) |
| 978400 MOA | = 45.296229972355 turns (t) |