Convert nanoradian to flat
Selected category: angle.
Definition and details for nanoradian:
Nanoradian (nrad) is a unit of angle measurement equal to 10-9 radian, or about 0.209 milliarcsecond (mas). Such tiny angles are used from astronomers and geologists.
Definition and details for flat:
Flat is an infromal unit of angle measure equal to the angle of the equilateral triangle (60 degrees), or one sextant (1/6 circle). For example a hex nut have 6 flat sides. So to turn the nut "one flat" is to turn it 1/6 revolution.