Convert degree to nanoradian
Selected category: angle.
Definition and details for degree:
Degree (deg) unit was introduced by the Greek geometer Hipparchus of Nicaea (ca. 180-ca. 125 BC), who developed the first trigonometric tables. This is the standard unit of angle measure, equal to 1/360 circle, 60 minutes, 3600 seconds.
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.