Arcminute: Commonly used in [[astronomy]], 1 arcminute is 1/60 of a degree or 1/21600 of a circle. It is useful due to the small angles often encountered. | Arcminute: Commonly used in [[astronomy]], 1 arcminute is 1/60 of a degree or 1/21600 of a circle. It is useful due to the small angles often encountered. |