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An arcsecond (arsec) or second of arc 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 Arcseconds (arcsec) is equal to 4.848137E-6 radians, while 1 Milliarcseconds (mas) = 4.8481368E-9 radians.| 1 Arcseconds | to common angle units |
|---|---|
| 1 arcsec | = 4.848137E-6 radians (rad) |
| 1 arcsec | = 0.004848137 milliradians (mrad/mil) |
| 1 arcsec | = 0.0049382703096925 angular mils (µ mil) |
| 1 arcsec | = 0.00027777777776858 degrees (°deg) |
| 1 arcsec | = 0.00030864199259955 gradians (grad) |
| 1 arcsec | = 0.016666679271747 arcminutes (arcmin) |
| 1 arcsec | = 1 arcseconds (arcsec) |
| 1 arcsec | = 4.6296278258744E-6 sextants (60°) |
| 1 arcsec | = 9.2592379679144E-6 signs (30°) |
| 1 arcsec | = 7.7160439203653E-7 turns (t) |
| Arcseconds | to Milliarcseconds (table conversion) |
|---|---|
| 1 arcsec | = 1000.000041253 mas |
| 2 arcsec | = 2000.0000825059 mas |
| 3 arcsec | = 3000.0001237589 mas |
| 4 arcsec | = 4000.0001650118 mas |
| 5 arcsec | = 5000.0002062648 mas |
| 6 arcsec | = 6000.0002475178 mas |
| 7 arcsec | = 7000.0002887707 mas |
| 8 arcsec | = 8000.0003300237 mas |
| 9 arcsec | = 9000.0003712767 mas |
| 10 arcsec | = 10000.00041253 mas |
| 20 arcsec | = 20000.000825059 mas |
| 30 arcsec | = 30000.001237589 mas |
| 40 arcsec | = 40000.001650118 mas |
| 50 arcsec | = 50000.002062648 mas |
| 60 arcsec | = 60000.002475178 mas |
| 70 arcsec | = 70000.002887707 mas |
| 80 arcsec | = 80000.003300237 mas |
| 90 arcsec | = 90000.003712767 mas |
| 100 arcsec | = 100000.0041253 mas |
| 200 arcsec | = 200000.00825059 mas |
| 300 arcsec | = 300000.01237589 mas |
| 400 arcsec | = 400000.01650118 mas |
| 500 arcsec | = 500000.02062648 mas |
| 600 arcsec | = 600000.02475178 mas |
| 700 arcsec | = 700000.02887707 mas |
| 800 arcsec | = 800000.03300237 mas |
| 900 arcsec | = 900000.03712767 mas |
| 1000 arcsec | = 1000000.041253 mas |
| 2000 arcsec | = 2000000.0825059 mas |
| 4000 arcsec | = 4000000.1650118 mas |
| 5000 arcsec | = 5000000.2062648 mas |
| 7500 arcsec | = 7500000.3093972 mas |
| 10000 arcsec | = 10000000.41253 mas |
| 25000 arcsec | = 25000001.031324 mas |
| 50000 arcsec | = 50000002.062648 mas |
| 100000 arcsec | = 100000004.1253 mas |
| 1000000 arcsec | = 1000000041.253 mas |
| 1000000000 arcsec | = 1000000041253 mas |