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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.| 247000 Second Of Arc | to common angle units |
|---|---|
| 247000 SOA | = 1.197489839 radians (rad) |
| 247000 SOA | = 1197.489839 milliradians (mrad/mil) |
| 247000 SOA | = 1219.752766494 angular mils (µ mil) |
| 247000 SOA | = 68.611111108839 degrees (°deg) |
| 247000 SOA | = 76.234572172089 gradians (grad) |
| 247000 SOA | = 4116.6697801216 arcminutes (arcmin) |
| 247000 SOA | = 247000 arcseconds (arcsec) |
| 247000 SOA | = 1.143518072991 sextants (60°) |
| 247000 SOA | = 2.2870317780749 signs (30°) |
| 247000 SOA | = 0.19058628483302 turns (t) |