Triangulum Australe the Southern Triangle
A
small but readily distinguishable constellation near alpha Centauri.
It was introduced by the German astronomer Johann Bayer in 1603. It
is the southern hemisphere equivalent of the long established
northern Triangle, Triangulum.
Alpha
magnitude 1.9, K2 giant with a temperature of 4,000’C and is 391
light years away
Beta
magnitude 2.8 it’s a F1 class star with a temperature of 7,200’C
and is 40 light years away.
gamma
magnitude 2.9 is an A1 class star with a temperature of 9,200’C
and lies 184 light years away
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