December 26, 2011 – January 1, 2012

Orion, the Hunter, may be the most amazing constellation in the sky. And Betelgeuse, the star marking Orion's left shoulder, is a red supergiant that's ripe to explode as a supernova.

All comments must follow the Sky & Telescope Terms of Use and will be moderated prior to posting. Please be civil in your comments. Sky & Telescope reserves the right to use the comments we receive, in whole or in part, and to use the commenter’s username, in any medium. See also the Terms of Use and Privacy Policy.