Encyclopedia > Arc-second

Article Content

Arcsecond

Redirected from Arc-second

A second of arc or arcsecond is a unit of angular measurement which comprises one-sixtieth of an arcminute, or, put another way, 1/3600 of a degree of arc. The symbol for one arcsecond is 1".

It can be abbreviated as arcsec, but should then not be confused with the inverse trigonometric function arc secant, which has the same abbreviation.

All Wikipedia text is available under the terms of the GNU Free Documentation License

Search Encyclopedia

Search over one million articles, find something about almost anything!

Featured Article

Battle Creek, Michigan

... the census2 of 2000, there are 53,364 people, 21,348 households, and 13,363 families residing in the city. The population density is 481.1/km² (1,246.0/mi²). ...