An arcminute (denoted by the symbol ‘), is an angular measurement equal to 1/60 of a degree or 60 arcseconds.

There are 3,437.75’ in a radian, so that 1’ = 2.909×10^{-4} radians.

As seen from the Earth, the Sun and Moon both have angular diameters of about 30 arcminutes.

Study Astronomy Online at Swinburne University

All material is © Swinburne University of Technology except where indicated.