NGC/IC Project Restoration Effort

===== NGC 2733 is most likely an observation of NGC 2722. JH marks his RA 08 53 00 "+-" and notes "[RA] between 52m 31s and 54m 41s" (for 1830). (His north polar distance is 93 03 54, also for 1830.) There are, however, no nebulae of any kind in this RA range that he could have seen. The declination (from his father's observations) of N2722 is the same, and the descriptions are not incompatible. Given that JH probably also had trouble with the RA for NGC 2727 (which see) in the same sweep, this is a likely identification. By the way, this is another case where the positional uncertainty that JH notes in his original list has gotten lost along the way to the NGC. In GC, the galaxy has its "Number of Observations by H and h" marked "::"; Dreyer did not carry this over into the NGC, so the position there appears as if it carries normal accuracy. Having said that, I have to also say that Dreyer has a note in his 1912 Herschel papers, and in his MN list of NGC corrections resulting from that collection, about the RA for NGC 2722. Dreyer says that the RA in the GC is too large by 44 seconds, saying that JH should probably have corrected it (as he did for other nebulae in the same sweep) to the meridian. This is indeed true, and the NGC position, corrected by the -34 seconds, lands within 9 seconds of the galaxy.

===== NGC 2733 See observing notes for NGC 2722.