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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 Centesimal Second Of Arc (c SOA) = 1.570796E-6 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 Centesimal Second Of Arc (table conversion) |
|---|---|
| 1 SOA | = 3.0864205154584 c SOA |
| 2 SOA | = 6.1728410309168 c SOA |
| 3 SOA | = 9.2592615463752 c SOA |
| 4 SOA | = 12.345682061834 c SOA |
| 5 SOA | = 15.432102577292 c SOA |
| 6 SOA | = 18.51852309275 c SOA |
| 7 SOA | = 21.604943608209 c SOA |
| 8 SOA | = 24.691364123667 c SOA |
| 9 SOA | = 27.777784639126 c SOA |
| 10 SOA | = 30.864205154584 c SOA |
| 20 SOA | = 61.728410309168 c SOA |
| 30 SOA | = 92.592615463752 c SOA |
| 40 SOA | = 123.45682061834 c SOA |
| 50 SOA | = 154.32102577292 c SOA |
| 60 SOA | = 185.1852309275 c SOA |
| 70 SOA | = 216.04943608209 c SOA |
| 80 SOA | = 246.91364123667 c SOA |
| 90 SOA | = 277.77784639126 c SOA |
| 100 SOA | = 308.64205154584 c SOA |
| 200 SOA | = 617.28410309168 c SOA |
| 300 SOA | = 925.92615463752 c SOA |
| 400 SOA | = 1234.5682061834 c SOA |
| 500 SOA | = 1543.2102577292 c SOA |
| 600 SOA | = 1851.852309275 c SOA |
| 700 SOA | = 2160.4943608209 c SOA |
| 800 SOA | = 2469.1364123667 c SOA |
| 900 SOA | = 2777.7784639126 c SOA |
| 1000 SOA | = 3086.4205154584 c SOA |
| 2000 SOA | = 6172.8410309168 c SOA |
| 4000 SOA | = 12345.682061834 c SOA |
| 5000 SOA | = 15432.102577292 c SOA |
| 7500 SOA | = 23148.153865938 c SOA |
| 10000 SOA | = 30864.205154584 c SOA |
| 25000 SOA | = 77160.51288646 c SOA |
| 50000 SOA | = 154321.02577292 c SOA |
| 100000 SOA | = 308642.05154584 c SOA |
| 1000000 SOA | = 3086420.5154584 c SOA |
| 1000000000 SOA | = 3086420515.4584 c SOA |