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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 Milliarcseconds (mas) is equal to 4.8481368E-9 radians, while 1 Arcminutes (arcmin) = 0.000290888 radians.| 21 Milliarcseconds | to common angle units |
|---|---|
| 21 mas | = 1.018108728E-7 radians (rad) |
| 21 mas | = 0.0001018108728 milliradians (mrad/mil) |
| 21 mas | = 0.00010370367222546 angular mils (µ mil) |
| 21 mas | = 5.8333330924979E-6 degrees (°deg) |
| 21 mas | = 6.4814815772102E-6 gradians (grad) |
| 21 mas | = 0.00035000025026814 arcminutes (arcmin) |
| 21 mas | = 0.020999999133688 arcseconds (arcsec) |
| 21 mas | = 9.7222180332659E-8 sextants (60°) |
| 21 mas | = 1.9444398930481E-7 signs (30°) |
| 21 mas | = 1.6203691564317E-8 turns (t) |