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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 Diameter Parts (Ø part) = 0.01666666666 radians.| 86600 Second Of Arc | to common angle units |
|---|---|
| 86600 SOA | = 0.4198486642 radians (rad) |
| 86600 SOA | = 419.8486642 milliradians (mrad/mil) |
| 86600 SOA | = 427.65420881937 angular mils (µ mil) |
| 86600 SOA | = 24.055555554759 degrees (°deg) |
| 86600 SOA | = 26.728396559121 gradians (grad) |
| 86600 SOA | = 1443.3344249333 arcminutes (arcmin) |
| 86600 SOA | = 86600 arcseconds (arcsec) |
| 86600 SOA | = 0.40092576972072 sextants (60°) |
| 86600 SOA | = 0.80185000802139 signs (30°) |
| 86600 SOA | = 0.066820940350363 turns (t) |