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Type: reflection nebula
Mag: B=8.5, V=?
Size: 4′ x 4′
Ced 81 (NGC 2247)
Position (1900): RA 6 27.6, Dec + 10 24
Star: +10 1172 (Mp=9.2, V=8.5, SpT=B5p)
Spectrum of nebula: continuous spectrum (observed)
Classification: Neb associated with mainly one star (which may be multiple) - star surrounded by a neb envelope with conspicuous structure (eg. IC 5146)
Notes: "NGC 2247. Disc. Swift 1883 (732). WP 30. (54, 64, 114, 209, 216, 366, 486, 550). R. The NGC position is slightly in error. +10 1172 = HD 259431."
Palomar plate used: B (O-plate print)
Object's name: BD +10 11
Comments: In a dark lane/cloud, 8.7m
Lynds, B.T. (1962) Catalogue of dark nebulae. Astrophys.J.Suppl.Ser. 7, 1-52. [also: computer datafile: VII/7A]
= NGC 2247, Ced 81, [SS62] 54
Pos (1950.0) 06:30.4, +10:22
Size: 4x4 (blue), 3x3 (red).
The RNGC (Sulentic and Tifft 1973) notes that this is a diffuse nebula.
Bernes, C. (1977) A catalogue of bright nebulosities in opaque dust clouds.
= DG 109, [RK68] 61, VdB 82, Bernes 94, N2247, GN 06.30.3, Ced 81, [SS62] 54
Class: C (reflection neb)
by Jim Lucyk: Vehrenberg's Atlas of Galactic Neb-1 p96.
The Messier objects
The Bennett objects
The Caldwell list
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