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An arcminute (arcmin) or minute of arc 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 Hour Angles (HA) is equal to 0.26179938779 radians, while 1 Arcminutes (arcmin) = 0.000290888 radians.| 1600 Hour Angles | to common angle units |
|---|---|
| 1600 HA | = 418.879020464 radians (rad) |
| 1600 HA | = 418879.020464 milliradians (mrad/mil) |
| 1600 HA | = 426666.53811772 angular mils (µ mil) |
| 1600 HA | = 23999.999063221 degrees (°deg) |
| 1600 HA | = 26666.667120619 gradians (grad) |
| 1600 HA | = 1440001.0329199 arcminutes (arcmin) |
| 1600 HA | = 86399996.630458 arcseconds (arcsec) |
| 1600 HA | = 399.99982855582 sextants (60°) |
| 1600 HA | = 799.99812922842 signs (30°) |
| 1600 HA | = 66.666616872003 turns (t) |