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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 Microarcseconds (μas) = 4.8481368E-12 radians.| 988100 Second Of Arc | to common angle units |
|---|---|
| 988100 SOA | = 4.7904441697 radians (rad) |
| 988100 SOA | = 4790.4441697 milliradians (mrad/mil) |
| 988100 SOA | = 4879.5048930072 angular mils (µ mil) |
| 988100 SOA | = 274.47222221313 degrees (°deg) |
| 988100 SOA | = 304.96915288762 gradians (grad) |
| 988100 SOA | = 16468.345788413 arcminutes (arcmin) |
| 988100 SOA | = 988100 arcseconds (arcsec) |
| 988100 SOA | = 4.5745352547465 sextants (60°) |
| 988100 SOA | = 9.1490530360963 signs (30°) |
| 988100 SOA | = 0.76242229977129 turns (t) |