What’s Up in the Night Sky March 17th 2015

Jupiter this month forms a big, more-or-less equilateral triangle with Procyon and Pollux. Face southeast after dark, and Procyon is to Jupiter’s lower right. Pollux is to Jupiter’s upper right. Procyon is also part of the slightly larger Winter Triangle, down to Procyon’s lower right. The Winter Triangle too is equilateral. Its other stars are orange Betelgeuse in Orion and bright Sirius below.

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