Degree 1/360 turn Sfrac 1 1 2 360 ° (degree) deg 6996174532925000000♠17.4532925 mrad Arcminute 1/60 degree ′ (prime) arcmin, amin, am, ′ ^ {\displaystyle {\hat {'}}} , MOA 6994290888208700000♠290.8882087 µrad Arcsecond 1/60 arcminute = 1/3600 degree ″ (double prime) arcsec, asec, as 6992484813680000000♠4.8481368 µrad Milliarcsecond 0.001 arcsecond = 1/3600000 degree mas 6989484813680000000♠4.8481368 nrad Microarcsecond 0.001 mas = 6994100000000000000♠0.000001 arcsecond μas 6986484813679999999♠4.8481368 prad