NGC/IC Project Restoration Effort
(This is a very very beta version)
Location and Magnitude
Right Ascension: 16:5:39.5
Visual Magnitude: 14.7
Discoverer: Swift L.
Year of discovery: 1886
Discovery aperture: 16.0
Summary description: eeF, eS, R
NGC 6057 = NGC 6053. My previous note on these Hercules Cluster galaxies read
Swift found the brightest of the two objects near this place (the other is
NGC 6055) on 6 June 1886. Two nights later, he found both objects, but
apparently thought both were new discoveries. It is also possible that he
saw CGCG 108-127 and made a 10 arcmin error in his declination. However,
this would place his position somewhat northeast of the true place of the
CGCG galaxy, whereas his positions for the other objects he discovered on
6 June are generally southwest of the true places.
Steve Gottlieb points out, however, that the brighter preceding galaxy, UGC
10191, is the object most likely to have been picked up by Swift when he saw
just one object here that first night. Steve also notes that during Swift's
next observations of the galaxies on 8 June, he found the two objects
separated in RA by five seconds of time. The actual separation is almost
exactly seven seconds, close to Swift's estimate. This would of course
suggest that NGC 6057 is indeed identical to NGC 6053, the preceding of the
I'm comfortable with Steve's suggestion, so have switched the identifications
of the galaxies. NGC 6053 = NGC 6057 is the brighter western galaxy, while
NGC 6055 is the fainter eastern object of the pair.
18" (7/13/07): faint, small, irregularly round, 30"x25". Brighter of a pair with NGC 6055 1.7' ENE in the northeast section of the Hercules Galaxy Cluster.
17.5" (6/14/96): very faint, small, elongated 3:2 SW-NE, 45"x30". Situated in the NE corner of AGC 2151 with NGC 6055 1.7' ENE, IC 1189 7' ENE, MCG +03-41-115 6' ENE, UGC 10195 6' NE and NGC 6061 12' NE.
17.5" (5/28/89): very faint, very small, almost round, weak concentration, faint stellar nucleus. A mag 15 star is 40" WSW. Forms a pair with NGC 6055 1.7' ENE in AGC 2151.