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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 Centiradians (crad) = 0.01 radians.| 1 Second Of Arc | to common angle units |
|---|---|
| 1 SOA | = 4.848137E-6 radians (rad) |
| 1 SOA | = 0.004848137 milliradians (mrad/mil) |
| 1 SOA | = 0.0049382703096925 angular mils (µ mil) |
| 1 SOA | = 0.00027777777776858 degrees (°deg) |
| 1 SOA | = 0.00030864199259955 gradians (grad) |
| 1 SOA | = 0.016666679271747 arcminutes (arcmin) |
| 1 SOA | = 1 arcseconds (arcsec) |
| 1 SOA | = 4.6296278258744E-6 sextants (60°) |
| 1 SOA | = 9.2592379679144E-6 signs (30°) |
| 1 SOA | = 7.7160439203653E-7 turns (t) |
| Second Of Arc | to Centiradians (table conversion) |
|---|---|
| 1 SOA | = 0.0004848137 crad |
| 2 SOA | = 0.0009696274 crad |
| 3 SOA | = 0.0014544411 crad |
| 4 SOA | = 0.0019392548 crad |
| 5 SOA | = 0.0024240685 crad |
| 6 SOA | = 0.0029088822 crad |
| 7 SOA | = 0.0033936959 crad |
| 8 SOA | = 0.0038785096 crad |
| 9 SOA | = 0.0043633233 crad |
| 10 SOA | = 0.004848137 crad |
| 20 SOA | = 0.009696274 crad |
| 30 SOA | = 0.014544411 crad |
| 40 SOA | = 0.019392548 crad |
| 50 SOA | = 0.024240685 crad |
| 60 SOA | = 0.029088822 crad |
| 70 SOA | = 0.033936959 crad |
| 80 SOA | = 0.038785096 crad |
| 90 SOA | = 0.043633233 crad |
| 100 SOA | = 0.04848137 crad |
| 200 SOA | = 0.09696274 crad |
| 300 SOA | = 0.14544411 crad |
| 400 SOA | = 0.19392548 crad |
| 500 SOA | = 0.24240685 crad |
| 600 SOA | = 0.29088822 crad |
| 700 SOA | = 0.33936959 crad |
| 800 SOA | = 0.38785096 crad |
| 900 SOA | = 0.43633233 crad |
| 1000 SOA | = 0.4848137 crad |
| 2000 SOA | = 0.9696274 crad |
| 4000 SOA | = 1.9392548 crad |
| 5000 SOA | = 2.4240685 crad |
| 7500 SOA | = 3.63610275 crad |
| 10000 SOA | = 4.848137 crad |
| 25000 SOA | = 12.1203425 crad |
| 50000 SOA | = 24.240685 crad |
| 100000 SOA | = 48.48137 crad |
| 1000000 SOA | = 484.8137 crad |
| 1000000000 SOA | = 484813.7 crad |