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Type: reflection nebula
Mag: B=?, V=?
Detection of new nebulae by photography. Annals Harv Coll Obs., 18, 113. Bibcode: [1890AnHar..18..113P]
Photographs taken with the Bache telescope, a photographic 8-inch f/5.5 doublet, covering 10 degrees square, were examined by Mrs M Fleming with a magnifying glass.
Table 1: List of nebulae (p115)
No. 24 "Nebulosity surrounding DM -2 1350."
F, 3' irregular; star 8.5mag surrounded by diffuse nebulosity; 30'' np thiis star is a F star surrounded by a dark space in nebulosity.
Ced 55q (IC 435)
Position (1900): RA 5 37.9, Dec - 2 22
Star: 2 1350 (Mp=8.2, V=8.2, SpT=B8)
Spectrum of nebula: continuous spectrum (observed)
Classification: Neb associated with mainly one star (which may be multiple) - star surrounded by a neb envelope without conspicuous structure (eg. lambda Scorpii)
Notes: "Ced 55 q = IC 435. Disc. Pickering 1890 (557). FA 98. WP 67. (196, 216, 296, 366, 715). R. -2 1350 = HD 38087. Ced 55: The Orion region. History and bibliography: (118, 119, 186, 188, 191, 276, 352). The nebulous groundwork and the exterior nebulosities: (20, 21, 26, 53, 58, 78, 142, 143, 186, 191, 206, 207, 278, 279, 281, 282, 289, 305, 312, 438, 480, 519, 540. 541, 593, 594, 595, 620, 625, 628, 630 Pl 34, 663, 675, 715, 726 No 41, 769, 782, 802, 818). R. It is shown on several photographs, e.g. (630) Pl 34, that the whole region of the constellation Orion is filled up by vast masses of nebulosity. As is well known, there are several condensation which seem to stand out from the general background, and which have been separately discovered and studied. Such subnebulae, will be individually discussed below. Taken as a whole, No 55 of the catalogue should be classified as C. 2 in addition to the separate classes of the subnebulae."
= IC 435, Ced 55q
Pos (1950.0) 05:40.5, −2:20
Size: 5x5 (blue), 3x3 (red).
Bernes, C. (1977) A catalogue of bright nebulosities in opaque dust clouds.
= Bernes 112
= DG 77, [RK68] 39, VdB 57, Bernes 112, IC435, GN 05.40.5, Ced 55q
Class: C (reflection neb)
by Jim Lucyk: Vehrenberg's Atlas of Galactic Neb-1 p76.
Steve Coe, using a 13" f/5.6, notes: " Faint, pretty small, round, just a fuzzy star at 100X.
The Messier objects
The Bennett objects
The Caldwell list
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