Seconds (angular)
Abbreviation/Symbol:
- arcsec
Unit of:
- Angle
Worldwide use:
- Global
Description:
A second of arc (also known as arcsec) is 1⁄60 of an arcminute, or 1⁄1,296,000 of a circle. It is used in fields involing very small angles, eg astronomy
Usage context:
Along with the degree,arc minutes and seconds are the most commonly used angular measurement units
Multiples:
- There are 60 arc seconds in an arc minute, 3,600 arc seconds in a degree, and 1,296,000 arc seconds in a circle