NGC/IC Project Restoration Effort

(This is a very very beta version)



Basic Information

Location and Magnitude

Right Ascension: 16:5:39.5
Declination: +18:9:53
Constellation: HER
Visual Magnitude: 14.7

Historic Information

Discoverer: Swift L.
Year of discovery: 1886
Discovery aperture: 16.0


Summary description: eeF, eS, R
Sub-type: E2

Corwin's Notes

===== 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 pair. 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.

Steve's Notes

===== NGC 6057 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.