Southern Triangle

American  

noun

Astronomy.

1. the constellation Triangulum Australe.

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Etymology

Origin of Southern Triangle

First recorded in 1870–75

Example Sentences

Triangulum Australis, the Southern Triangle, is a small constellation north of Apus, and south of Norma.

From Project Gutenberg

Then, as the crater widened, appeared Fomalhaut of the Fish, the Southern Triangle, and lastly, nearly at the Antarctic Pole, the glittering Southern Cross, which replaces the Polar Star of the Northern Hemisphere.

From Project Gutenberg