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RA: 06h 19m 22s
Dec: +23° 16′ 27″
Ch: MSA:156, U2:137, SA:5
Ref: [2003A&A...399..141M], Corwin (2004)
Type: reflection nebula
Mag: B=?, V=?
Size: 90′ x 75′
IC 444. See IC 443.
Ced 74 (IC 444)
Position (1900): RA 6 14.4, Dec + 23 20
Star: +23 1301 (Mp=7.19, V=7.03, SpT=B9)
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 with conspicuous structure (eg. IC 5146)
Notes: "IC 444, Disc. Wolf 1893 (796). WP 45. (53, 93 Pl 8 Pl 9, 194, 630 Pl 32). R. The nebula seems to be confined to the vicinity of +23 1301 = HD 43836 = Boss 8106 = 12 Geminorum. This star belongs to the cluster (194) No 89. Barnard (53) has stated that +23 1313 is also nebulous. The IC description refers to this star."
Lynds, B.T. (1962) Catalogue of dark nebulae. Astrophys.J.Suppl.Ser. 7, 1-52. [also: computer datafile: VII/7A]
= IC 444, Ced 74
Pos (1950.0) 06:17.4, +23:19
Size: 8x8 (blue), 4x3 (red).
Pos (1950.0) 06:16.6, +23:22
Size: 2x1 (blue), 2x1 (red).
Magakian 189 = DG 99, GN 06.15.6; Class: C (reflection neb)
Magakian 190 = DG 100, VdB 75, IC444, GN 06.16.4, Ced 74; Class: C (reflection neb)
vdB 75 = IC 444? Photo Index by Jim Lucyk: Vehrenberg's Atlas of Galactic Neb-1 p93
by Jim Lucyk: Vehrenberg's Atlas of DS Splendors (3ed) p73, Vehrenberg's Atlas of Galactic Neb-1 p94.
Coe, observing with a 13" f/5.6, notes: "Very faint, pretty large, irregularly round, star 12 Gem in the center, the UHC filter is no help. Averted vision does help this low surface brightness nebula."
The Messier objects
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