NGC/IC Project Restoration Effort

===== NGC 7635. There is no problem with the identification of this marvelous HII region. But there is a curious "discrepancy" between the NGC itself and the GC, as well as the original observations. Dreyer has an 8th magnitude star involved, while JH and WH have the star as 9th magnitude. That is what JH used in GC too. Finally, the NGC has a position about an arcminute north of WH and JH (their positions are accordant to within 2 seconds of time). It looks like Dreyer has adopted a position close to the BD position for the star; he has certainly adopted the BD magnitude (8.0) as that of the star. Ironically, the modern V magnitude is 8.7, closer to the Herschels' estimate than to the BD observer's.

===== NGC 7635 17.5": the "Bubble Nebula" extends mainly north of the ionizing emission-line star, mag 8.7 BD+60¡2522 (O6.5-type supergiant). ÊDark lanes are suspected to the north with very faint nebulosity just north of this gap. The main piece of nebulosity curves away from the involved star towards the east but appears brightest at the western edge near the bright star. Only the portion of the rim extending from north to east of the 3' diameter "Bubble" was seen (not the south edge). The view improved with both OIII and UHC filters but not dramatically. ÊLocated 6.5' NE of mag 7 HD 220057. ÊM52 lies 35' NE. 13" (9/29/84): unusual appearance - surrounds a mag 8 star with a mag 7 star nearby to the SW. The nebulosity mostly appears north of the mag 8 star with a suspected dark lane to the north of this nebulosity. Very faint nebulosity appears close north of this lane. The main section hooks around the involved star to the east.