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/

หมวดหมู่:

asterism