TRIANGULUM

:''For the southern constellation, see Triangulum Australe.''
'Triangulum' (IPA: ) is a small northern constellation whose three brightest stars, of third and fourth magnitude, form an elongated triangle. It is one of the 88 modern constellations, and also one of the 48 listed by Ptolemy.

Contents

Notable features

Notable deep sky objects

History and mythology

See also

Reference

External links

Notable features

Triangulum has no stars of the first magnitude. Its brightest stars are β Trianguli (3.00^m) and α Trianguli (3.41^m).

Notable deep sky objects

Triangulum is the location of the Triangulum Galaxy, M33, one of the members of the Local Group. It is about 2.9 million light years away, and at magnitude 5.8 is sufficiently bright that it can be glimpsed with the naked eye under dark skies.

History and mythology

An early name of the constellation was ''Sicilia'', because Ceres, patron goddess of Sicily, was claimed to have begged Jupiter that the island be placed in the heavens.

See also

★ Triangulum Australe

Reference

★ Ian Ridpath and Wil Tirion (2007). ''Collins Stars and Planets Guide'', HarperCollins, London. ISBN 978-0007251209.

External links

★ The Deep Photographic Guide to the Constellations: Triangulum

★ Star Tales – Triangulum