Triangulum, the third largest member of the Local Group, is about one-tenth the size of Andromeda.
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A small northern constellation near Perseus between Andromeda and Aries
Triangulum is a small constellation in the northern sky. Its name is Latin for triangle, and it should not be confused with Triangulum Australe in the southern sky. ...
The Triangulum Galaxy is a spiral galaxy at approximately 3 million light years (ly) distance in the constellation Triangulum. It is catalogued as Messier 33 or NGC 598, and is sometimes informally referred to as the Pinwheel Galaxy, a moniker it shares with Messier 101. ...
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