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IC 444 (4,156 of 18,816)

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IC 444

IC 444, Ced 74, DG 99, DG 100, LBN 188.65+03.75, LBN 840, VDB 75, Magakian 189, Magakian 190

RA: 06h 19m 22s
Dec: +23° 16′ 27″

Con: Gemini
Ch: MSA:156, U2:137, SA:5

Ref: [2003A&A...399..141M], Corwin (2004)

(reference key)

Type: reflection nebula

Mag: B=?, V=?

Size: 90′ x 75′
PA: ?

History and Accurate Positions for the NGC/IC Objects (Corwin 2004)

IC 444. See IC 443.

Published comments

Cederblad, S. (1946) [VII/231]

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)

Size: 5.5'x5'

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)

Lynds, B.T. (1962) Catalogue of dark nebulae. Astrophys.J.Suppl.Ser. 7, 1-52. [also: computer datafile: VII/7A]

Dorschner & Gürtler (1963)

Untersuchungen uber Reflexionsnebel.

DG 100

= IC 444, Ced 74

Pos (1950.0) 06:17.4, +23:19

Size: 8x8 (blue), 4x3 (red).

 

DG 99

Pos (1950.0) 06:16.6, +23:22

Size: 2x1 (blue), 2x1 (red).

Magakian T. Yu. (2003)

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)

Photo index

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.

Modern observations

Steve Coe

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."

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