Winter Triangle
asterism in the form of an approximately equilateral trangle formed by Sirius, Betelgeuse and Procyon
en-GB/ˈwɪntə ˈtɹaɪæŋɡəl/
en-US/ˈwɪntɚ ˈtɹaɪˌæŋɡəl/
asterism in the form of an approximately equilateral trangle formed by Sirius, Betelgeuse and Procyon