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Type: star (single)
Mag: B=?, V=?
NGC 7748. Only the star (SAO 20818) is here. JH says, "About a * 8m is a very extensive space which I am certain is affected with nebulosity." He saw this on only one night, so the nebulosity may well have been a transient feature of some sort (thin cloud? aurora?).
The magnitude of the star becomes "7" in the NGC; GC follows JH of course, in making it "8": another curiousity with this object.
Ced 212 (NGC 7748)
Position (1900): RA 23 40.3, Dec + 69 12
Star: +68 1393 (Mp=6.98:, V=7.03, SpT=B8)
Spectrum of nebula: continuous spectrum (inferred from sp.t. of illuminating star)
Classification: Neb associated with mainly one star (which may be multiple) - star surrounded by a neb envelope without conspicuous structure (eg. lambda Scorpii)
Notes: "NGC 7748 = GC 5008 = h 2266. (114, 209, 216, 578). R. +68 1393 = HD 222958 = Boss 32974. Curtis (209, 216) could find no trace of nebulosity."
The RNGC (Sulentic and Tifft 1973) notes that this is a nonexistent object. Their coded description reads NF DC.
The Messier objects
The Bennett objects
The Caldwell list
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