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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.
The radian (symbol rad) is the standard unit of angular measure. The radian is determimed by the circumference of a circle that is equal in length to the radius of the circle. ..more definition+
In relation to the base unit of [angle] => (radians), 1 Arcseconds (arcsec) is equal to 4.848137E-6 radians, while 1 Radians (rad) = 1 radians.129900 Arcseconds | to common angle units |
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129900 arcsec | = 0.6297729963 radians (rad) |
129900 arcsec | = 629.7729963 milliradians (mrad/mil) |
129900 arcsec | = 641.48131322906 angular mils (µ mil) |
129900 arcsec | = 36.083333332138 degrees (°deg) |
129900 arcsec | = 40.092594838681 gradians (grad) |
129900 arcsec | = 2165.0016374 arcminutes (arcmin) |
129900 arcsec | = 129900 arcseconds (arcsec) |
129900 arcsec | = 0.60138865458108 sextants (60°) |
129900 arcsec | = 1.2027750120321 signs (30°) |
129900 arcsec | = 0.10023141052555 turns (t) |