May 31, 2013
Your birthday is not just a date on a calendar. It is the yearly return of a moment when the universe became more observant, more feeling,...
The Eagle and The Swan
Birthday · May 31, 2013
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APOD published May 31, 2013. Credit: Dieter Willasch. A publication-date match, not a photo taken on your date. Independent of NASA.
The Eagle Nebula and the Swan Nebula span this broad starscape, a telescopic view of the Sagittarius spiral arm toward the center of our Milky Way galaxy. The Eagle, also known as M16, is left, above center, and the Swan, or M17 at the lower right. The deep, wide-field image shows the cosmic clouds as brighter regions of active star-formation. They lie along the spiral arm suffused with reddish emission charactistic of atomic hydrogen gas, and dusty dark nebulae. In fact, the center of both nebulae are locations of well-known close-up images of star formation from the Hubble Space Telescope. M17, also called the Omega Nebula, is about 5500 light-years away, while M16 is some 6500 light-years distant. In the frame that covers 3 degrees across the sky, the extended wings of the Eagle Nebula are spread over 120 light-years.
Image credit: Dieter Willasch