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The Northern Trifid in Pegasus
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The Northern Trifid (aka NGC 1579) is found in the constellation Pegasus. Unlike its southern neighbor Messier 20 from which it got its name, the reddish hues are not a HII region but rather dust lighted by the reflection of a star with an unusual amount of H-alpha emission as well as interstellar extinction (S. J. O'Meara, The Secret Deep, 2011, pp 79-81). Our current understanding suggests the Northern Trifid is a vast dusty star-forming region. Image was taken with a SBIG 8300c CCD camera and a RCOS 12.5 inch f9 astrograph on a Paramount ME. Total combined exposure of 8 hr 20 min on the nights of 23 Nov, 30 Nov, 5 Dec 2016 in Mayhill, NM (25 x 1200 sec lights @-15 degrees C; 18 darks, 128 bias; 128 flats); Processed in PixInsight 1.8.5.1353 (64 bit).
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