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Picture of the Day
A dusty trunk
Mark Killion, taken from Beryl, Utah
The Elephant’s Trunk Nebula (IC 1396A) is a dark, dense column of gas and dust about 2,400 light-years away in Cepheus, part of the larger IC 1396 emission region. The feature is being sculpted by radiation and winds from a nearby massive star, which ionizes the bright rim of the feature. The imager collected 21.6 hours of exposure through broadband and dual-band Hα/OIII filters with a 5-inch f/5 refractor and one-shot-color camera.
What’s Launching This Week
Today in the History of Astronomy
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