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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 Second Of Arc (SOA) is equal to 4.848137E-6 radians, while 1 Milliradians (mrad/mil) = 0.001 radians.| 516000 Second Of Arc | to common angle units |
|---|---|
| 516000 SOA | = 2.501638692 radians (rad) |
| 516000 SOA | = 2501.638692 milliradians (mrad/mil) |
| 516000 SOA | = 2548.1474798013 angular mils (µ mil) |
| 516000 SOA | = 143.33333332859 degrees (°deg) |
| 516000 SOA | = 159.25926818137 gradians (grad) |
| 516000 SOA | = 8600.0065042216 arcminutes (arcmin) |
| 516000 SOA | = 516000 arcseconds (arcsec) |
| 516000 SOA | = 2.3888879581512 sextants (60°) |
| 516000 SOA | = 4.7777667914439 signs (30°) |
| 516000 SOA | = 0.39814786629085 turns (t) |