nanoradian (nrad)
nanoradian (nrad) :
A unit of angle measure equal to 10-9 radian. The nanoradian equals about 0.208 533 milliarcsecond (mas). Such tiny angles are encountered in astronomy and in geological measurements
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A unit of angle measure equal to 10-9 radian. The nanoradian equals about 0.208 533 milliarcsecond (mas). Such tiny angles are encountered in astronomy and in geological measurements