December 12, 2013
The constellations may be old, but the person celebrating beneath them is gloriously new by cosmic standards.
Alnitak, Alnilam, Mintaka
Birthday · December 12, 2013
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APOD published December 12, 2013. Credit: Rogelio Bernal Andreo. A publication-date match, not a photo taken on your date. Independent of NASA.
Alnitak, Alnilam, and Mintaka, are the bright bluish stars from east to west (lower right to upper left) along the diagonal in this gorgeous cosmic vista. Otherwise known as the Belt of Orion, these three blue supergiant stars are hotter and much more massive than the Sun. They lie about 1,500 light-years away, born of Orion's well-studied interstellar clouds. In fact, clouds of gas and dust adrift in this region have intriguing and some surprisingly familiar shapes, including the dark Horsehead Nebula and Flame Nebula near Alnitak at the lower right. The famous Orion Nebula itself is off the right edge of this colorful star field. The well-framed, wide-field telescopic image spans about 4 degrees on the sky. Watch: The Geminid Meteor Shower
Image credit: Rogelio Bernal Andreo