The Winter Triangle

The weather may be fooling us into thinking it’s spring, but the collection of stars known as the Winter Triangle denies it.

It can still be seen sailing across the southern sky, during these mild evenings in March. It rises in the east and sets in the west a little sooner each night. Using some bright stars and one of the most famous constellations, you can track its progress for yourself, before it leaves us for the season.

To find the Winter Triangle, the first star you’ll want to find is Sirius. It’s the brightest star in the night sky, twinkling furiously in the southern sky during the early evening hours. It’s star No. 1 in the Winter Triangle. Now, you should be able to see the famous constellation Orion, looming in the sky just northwest of Sirius. Scanning the sky above Orion’s “belt”, do you see a bright orange-red star? That’s Betelgeuse, and it marks Orion’s right shoulder. In our quest for the Winter Triangle, it counts as Star No. 2. To find No. 3, start searching the sky to the east of Betelgeuse. The first bright star you find will be Procyon, and it completes the Triangle.

Here’s a photo to explain what I mean.

Image Courtesy of Katharina Rast
Image Courtesy of Katharina Rast

The Winter Triangle is really just part of a larger asterism known as the Winter Circle, which really looks more like a hexagon. Once you find the Triangle, see if you can locate the Circle, as shown in the photo below.

Winter circle
Image Courtesy of Adrian Jannetta of cosmicriver.net

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By Rina Rast

Rina graduated from homeschool in 2016 and is a current undergraduate student. Her interests include science, photography, philosophy, and 20th century history. When not analyzing data, tackling term papers, or exploring the night sky through her telescope, she enjoys reading, writing, and walking her canine friends.