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Type: galaxy, Sc
Mag: B=14, V=13.3
Size: 1.1′ x 0.9′
NGC 5655 is not the very faint little smudge of a galaxy to which RNGC assigns the number. Rather, it is the southeastern of a pair seen by John Herschel, the brighter northwestern having also been seen by his father.
Unfortunately, JH's positions for both are off by about 2-3 arcmin to the southeast of the true positions. This has led the modern catalogues to give the NGC number 5648 to the preceding of the pair, and 5649 to the following. Left with NGC 5655 unattached to any object, RNGC arbitrarily put it on the faint object that JH could not have seen. See NGC 5648 = NGC 5649, for more.
The RNGC (Sulentic and Tifft 1973) notes that this is a galaxy. Their coded description reads SLEL,ALMSTEL.
The Messier objects
The Bennett objects
The Caldwell list
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