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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 Rotations (rot) = 6.28319 radians.| 1904000000 Second Of Arc | to common angle units |
|---|---|
| 1904000000 SOA | = 9230.852848 radians (rad) |
| 1904000000 SOA | = 9230852.848 milliradians (mrad/mil) |
| 1904000000 SOA | = 9402466.6696545 angular mils (µ mil) |
| 1904000000 SOA | = 528888.88887137 degrees (°deg) |
| 1904000000 SOA | = 587654.35390954 gradians (grad) |
| 1904000000 SOA | = 31733357.333407 arcminutes (arcmin) |
| 1904000000 SOA | = 1904000000 arcseconds (arcsec) |
| 1904000000 SOA | = 8814.8113804648 sextants (60°) |
| 1904000000 SOA | = 17629.589090909 signs (30°) |
| 1904000000 SOA | = 1469.1347624376 turns (t) |