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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 Hour Angles (HA) = 0.26179938779 radians.| 1 Minute Of Arc | to common angle units |
|---|---|
| 1 MOA | = 0.000290888 radians (rad) |
| 1 MOA | = 0.290888 milliradians (mrad/mil) |
| 1 MOA | = 0.29629599449146 angular mils (µ mil) |
| 1 MOA | = 0.016666654061044 degrees (°deg) |
| 1 MOA | = 0.018518505550338 gradians (grad) |
| 1 MOA | = 1 arcminutes (arcmin) |
| 1 MOA | = 59.999954621744 arcseconds (arcsec) |
| 1 MOA | = 0.00027777745946803 sextants (60°) |
| 1 MOA | = 0.0005555538579068 signs (30°) |
| 1 MOA | = 4.629622850813E-5 turns (t) |
| Minute Of Arc | to Hour Angles (table conversion) |
|---|---|
| 1 MOA | = 0.0011111103141056 HA |
| 2 MOA | = 0.0022222206282112 HA |
| 3 MOA | = 0.0033333309423168 HA |
| 4 MOA | = 0.0044444412564224 HA |
| 5 MOA | = 0.005555551570528 HA |
| 6 MOA | = 0.0066666618846336 HA |
| 7 MOA | = 0.0077777721987392 HA |
| 8 MOA | = 0.0088888825128448 HA |
| 9 MOA | = 0.0099999928269504 HA |
| 10 MOA | = 0.011111103141056 HA |
| 20 MOA | = 0.022222206282112 HA |
| 30 MOA | = 0.033333309423168 HA |
| 40 MOA | = 0.044444412564224 HA |
| 50 MOA | = 0.05555551570528 HA |
| 60 MOA | = 0.066666618846336 HA |
| 70 MOA | = 0.077777721987392 HA |
| 80 MOA | = 0.088888825128448 HA |
| 90 MOA | = 0.099999928269504 HA |
| 100 MOA | = 0.11111103141056 HA |
| 200 MOA | = 0.22222206282112 HA |
| 300 MOA | = 0.33333309423168 HA |
| 400 MOA | = 0.44444412564224 HA |
| 500 MOA | = 0.5555551570528 HA |
| 600 MOA | = 0.66666618846336 HA |
| 700 MOA | = 0.77777721987392 HA |
| 800 MOA | = 0.88888825128448 HA |
| 900 MOA | = 0.99999928269504 HA |
| 1000 MOA | = 1.1111103141056 HA |
| 2000 MOA | = 2.2222206282112 HA |
| 4000 MOA | = 4.4444412564224 HA |
| 5000 MOA | = 5.555551570528 HA |
| 7500 MOA | = 8.333327355792 HA |
| 10000 MOA | = 11.111103141056 HA |
| 25000 MOA | = 27.77775785264 HA |
| 50000 MOA | = 55.55551570528 HA |
| 100000 MOA | = 111.11103141056 HA |
| 1000000 MOA | = 1111.1103141056 HA |
| 1000000000 MOA | = 1111110.3141056 HA |