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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.| 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 Microarcseconds (table conversion) |
|---|---|
| 1 SOA | = 1000000.041253 μas |
| 2 SOA | = 2000000.0825059 μas |
| 3 SOA | = 3000000.1237589 μas |
| 4 SOA | = 4000000.1650118 μas |
| 5 SOA | = 5000000.2062648 μas |
| 6 SOA | = 6000000.2475178 μas |
| 7 SOA | = 7000000.2887707 μas |
| 8 SOA | = 8000000.3300237 μas |
| 9 SOA | = 9000000.3712767 μas |
| 10 SOA | = 10000000.41253 μas |
| 20 SOA | = 20000000.825059 μas |
| 30 SOA | = 30000001.237589 μas |
| 40 SOA | = 40000001.650118 μas |
| 50 SOA | = 50000002.062648 μas |
| 60 SOA | = 60000002.475178 μas |
| 70 SOA | = 70000002.887707 μas |
| 80 SOA | = 80000003.300237 μas |
| 90 SOA | = 90000003.712767 μas |
| 100 SOA | = 100000004.1253 μas |
| 200 SOA | = 200000008.25059 μas |
| 300 SOA | = 300000012.37589 μas |
| 400 SOA | = 400000016.50118 μas |
| 500 SOA | = 500000020.62648 μas |
| 600 SOA | = 600000024.75178 μas |
| 700 SOA | = 700000028.87707 μas |
| 800 SOA | = 800000033.00237 μas |
| 900 SOA | = 900000037.12767 μas |
| 1000 SOA | = 1000000041.253 μas |
| 2000 SOA | = 2000000082.5059 μas |
| 4000 SOA | = 4000000165.0118 μas |
| 5000 SOA | = 5000000206.2648 μas |
| 7500 SOA | = 7500000309.3972 μas |
| 10000 SOA | = 10000000412.53 μas |
| 25000 SOA | = 25000001031.324 μas |
| 50000 SOA | = 50000002062.648 μas |
| 100000 SOA | = 100000004125.3 μas |
| 1000000 SOA | = 1000000041253 μas |
| 1000000000 SOA | = 1.000000041253E+15 μas |