Triangulum

[trahy-ang-gyuh-luhm]

noun

Astronomy.

genitive

Trianguli 

1. the Triangle, a northern constellation between Pisces and Perseus.

Triangulum

/ traɪˈæŋɡjʊləm /

noun

1. a small triangular constellation in the N hemisphere, close to Perseus and Aries

Word History and Origins

Origin of Triangulum¹

Borrowed into English from New Latin around 1545–55

Example Sentences

Joining us is the Andromeda galaxy, a slightly larger twin of the Milky Way, about 2.5 million light years distant, and, slightly farther away, a smaller spiral in the Triangulum constellation called M33.

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The Triangulum Galaxy — also known as Messier 33 or NGC 598 — is part of the "Local Group," meaning it is part of the same group of galaxies that the Milky Way belongs to.

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In this case the asterism is made up of stars from the constellations Libra, Virgo, Centaurus, and Triangulum Australe.

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They used computer simulations to model an entire Milky Way–like galaxy and its neighbors, the Andromeda and Triangulum galaxies.

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By then, the smaller Triangulum galaxy may have already collided with either of its two larger neighbors.

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