The Constellation Directory


"The Triangle"


By IAU and Sky & Telescope magazine (Roger Sinnott & Rick Fienberg) [CC-BY-3.0], via Wikimedia Commons

Abbreviation: Tri
Genitive: Trianguli
Constellation family: Perseus
Nearest constellations: Andromeda, Aries, Perseus, and Pisces
Right ascension: 2.11h
Declination: 32.03°
Visible between latitudes: +90° and -60°
Square degrees: 132
Luminary: Beta Trianguli
Named stars: Mothallah
Notable deep sky objects: M33, NGC 925 (Triangulum Galaxy)


Triangulum is a small constellation in the Northern Hemisphere. It is best seen in December.


There is no mythology associated with this constellation.