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A second of arc, or arcsecond (arsec) is 1/60 of an arcminute, 1/3600 of a degree, 1/1296000 of a turn, and π/648000 (about 1/206265) of a radian.
In relation to the base unit of [angle] => (radians), 1 Circles (o) is equal to 6.28319 radians, while 1 Second Of Arc (SOA) = 4.848137E-6 radians.| 302100 Circles | to common angle units |
|---|---|
| 302100 o | = 1898151.699 radians (rad) |
| 302100 o | = 1898151699 milliradians (mrad/mil) |
| 302100 o | = 1933440861.606 angular mils (µ mil) |
| 302100 o | = 108756076.98707 degrees (°deg) |
| 302100 o | = 120840092.31496 gradians (grad) |
| 302100 o | = 6525369554.6052 arcminutes (arcmin) |
| 302100 o | = 391521877166.42 arcseconds (arcsec) |
| 302100 o | = 1812600.5769683 sextants (60°) |
| 302100 o | = 3625194.2303285 signs (30°) |
| 302100 o | = 302100 turns (t) |