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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 Microarcseconds (μas) is equal to 4.8481368E-12 radians, while 1 Second Of Arc (SOA) = 4.848137E-6 radians.12 Microarcseconds | to common angle units |
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12 μas | = 5.81776416E-11 radians (rad) |
12 μas | = 5.81776416E-8 milliradians (mrad/mil) |
12 μas | = 5.9259241271691E-8 angular mils (µ mil) |
12 μas | = 3.3333331957131E-9 degrees (°deg) |
12 μas | = 3.7037037584058E-9 gradians (grad) |
12 μas | = 2.0000014301037E-7 arcminutes (arcmin) |
12 μas | = 1.1999999504964E-5 arcseconds (arcsec) |
12 μas | = 5.5555531618662E-11 sextants (60°) |
12 μas | = 1.1111085103132E-10 signs (30°) |
12 μas | = 9.2592523224668E-12 turns (t) |