NGC/IC Project Restoration Effort

===== NGC 6510 = NGC 6511. Swift's RAs and descriptions, from his first and fourth lists, are far enough apart that both he and Dreyer took the observations to be of different objects. They are, in fact, of the same galaxy. Swift's observations can be reconciled to the field by recalling that his eyepiece had a half-degree field. Then, the "curve" of three stars he notes are probably the brightest three 7-12 arcminutes to the northeast, and his "one vF * nr" is most likely the double star about 5 arcmin to the southwest. Bigourdan's observations, quoted by Dreyer in the IC2 Notes, are of the galaxy and a faint star preceding it by over 40 seconds of time. He called the star "NGC 6510" in his big table, but it is clearly not. There are too many others around that are brighter, and Swift's are positions too poor in any case to pick one like this out of all the others.

===== NGC 6510 See observing notes for NGC 6511.