Proper noun
(astronomy) An autumn constellation of the northern sky whose brightest three stars form a small triangle. The constellation lies near Perseus, between Aries and Andromeda.
(astronomy) The Triangulum Galaxy, a relatively nearby spiral galaxy to the Milky Way; M33.
Source: en.wiktionary.orgPisces Dwarf is equidistant from the Andromeda Galaxy and the Triangulum Galaxy, so it may be a satellite of either. Source: Internet
Iota Trianguli is a notable double star system, and there are three star systems with known planets located in Triangulum. Source: Internet
Click here for more information. main infobox Triangulum is a small constellation in the northern sky. Source: Internet
For example, in 1999, Strassmeier reported the largest cool starspot ever seen rotating the giant K0 star XX Triangulum (HD 12545) with a temperature of convert, together with a warm spot of convert. Source: Internet
The constellation Triangulum as it can be seen by the naked eye. Source: Internet