Asterisms · Asterism · 3 stars across Canis Major, Canis Minor, Orion
Asterism
Winter Triangle
The Winter Triangle: Betelgeuse, Sirius and Procyon — an almost equilateral triangle on either side of the faint winter Milky Way.
- Stars
- Sirius, Procyon, Betelgeuse
- Constellations
- Canis Major, Canis Minor, Orion
- Spans
- about 27° of sky
- Highest at midnight
- late December
Look for
Red, blue-white and yellow-white: a lesson in star colours in one glance. The dim unicorn, Monoceros, fills its middle.