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| Submitted by Al Takeda on 02/03/2011 11:15:24 |
M17 (NGC 6618) The Swan Nebula (also called the Omega Nebula, Checkmark Nebula, Horseshoe Nebula and the Lobster Nebula (in the southern hemisphere) is a star forming region whose hydrogen gas is being excited by hot young stars. Narrowband H-a:O-III:S-II - 35:30:15 minutes, 5-minute unbinned sub frames. Takahashi Epsilon-180, SBIG STL6303E CCD camera, ATMoB Clubhouse. 13 August 2010. |
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