✧ Winter Triangle The Winter Triangle is an asterism in Monoceros. ⣀⣀⣀⣀⣀⣀⡤⠤⠤⠤⠤⠤● ●⡒⠒⠒⠒⠒⠋⠉⠉⠉⠉⠉⠁ ⡼⠁ ⢳⡀ ⡼⠁ ⠹⡄ ⡼⠁ ⠹⡄ ⡼⠁ ⠹⡄ ⡼⠁ ⠙⣆ ⡼⠁ ⠘⣆ ⡼⠁ ⠘⣆ ⡼⠁ ⠘⢦ ⡼⠁ ⠈⢧ ⡼⠁ ⠈⢧ ⡼⠁ ⠈●⠁ Type Asterism Constellation Monoceros Stars 3 More information about Winter Triangle The Winter Triangle joins Sirius, Procyon and Betelgeuse, which are amongst the brightest stars in the sky, and together they draw a close to perfect equilateral triangle. The name is modern and the shape useful because all three are bright enough to survive city lights. Betelgeuse is the odd corner: red, variable, and several hundred times the Sun's width. Etymology From English Reading the Winter Triangle Literally the winter triangle The evolution of Winter Triangle over time -50,000 years Procyon ⠈●⡓⠢⠤⣄⣀ ⠙⢄ ⠉⠑⠒⠦⠤⣀⡀ ⠈⠳⡀ ⠉⠉⠒⠢⠤⣄⣀ ⠘⢆ ⠉⠑⠒⠤⢄⣀⡀ ⠳⡀ ⠉⠉⠒⠢⠤⣀ ⠘⢆ ⣀⡤⠖⠋● Betelgeuse ⠳⡀ ⣀⡤⠖⠋⠁ ⠈⢦ ⢀⡠⠔⠊⠁ ⠱⡄⢀⣠⠔⠊⠁ ⠈● Sirius now Procyon ⣀⣀⣀⣀⣀⣀⡤⠤⠤⠤⠤⠤⠔● Betelgeuse ⠐●⠒⠒⠋⠉⠉⠉⠉⠉⠁ ⡜ ⠈⢆ ⡜ ⠈⢣ ⡜ ⠱⡀ ⢀⠜ ⠙⡄ ⢀⠎ ⠈⢆ ⢀⠎ ⠈⢣⡀ ⢀⠎ ⠱⡀ ⢠⠏ ⠘⣆ ⢠⠃ ⠈⢢⠃ ● Sirius +50,000 years ⡠● Betelgeuse ⡠⠊⢠⠃ ⡠⠎⠁ ⢸ ⣠⠜⠁ ⢸ ⣠⠚ ⢸ ⣀⠖⠁ ⣸ ⢀⠔⠁ ⡇ ⢔⠁ ⡇ Procyon ●⢆ ⡇ ⠈⢆ ⡇ ⠈⢆ ⢰⠁ ⠈⢆ ⢸ ⠈⢢ ⢸ ⢣ ⢸ ⢣ ⡜ ⢣ ⡇ ⢣ ⡇ ⢣ ⡇ ⠣⡇ ● Sirius Over 50,000 years either way the longest side of this figure changes by 58%, and the furthest any of its stars travels is 20.9 degrees. Betelgeuse drifts the opposite way to the other 2, which travel together. Proper motion only: this is the shape changing, not the sky turning or the pole moving. curl 'skymap.sh/Winter%20Triangle/evolution.gif' where it is tonight: skymap.sh/Winter Triangle