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B72, the ‘Snake Nebula,’ is an example of a condensing molecular cloud. Reasonably sized – covering an area of almost 40' – this rather startling dense nebula may be found winding its way through a corner of Ophiucus in a star-packed region. Appearing as a narrow dark channel with curious near right-angle turns, the thickest and most prominent section appears in the lower right. The remainder, which would represent the head and tail, may be harder live visual targets, but the nebula is one of the more celebrated sights among dark nebulae.
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