Encyclopedia > Arcsecond

  Article Content


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
List of people by name: T

... Ike, (born 1931), record producer, guitarist, piano player Turner, Janine[?], (born 1962), actress Turner, J.M.W., (1775-1850), painter Turner, John ...