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IC 5076 (16,469 of 18,816)

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IC 5076

IC 5076, Ced 185, DG 165, LBN 394, LBN 087.47+01.41, Magakian 838, VDB 137, V2140 Cyg

RA: 20h 55m 49s
Dec: +47° 25′ 1″

Con: Cygnus
Ch: MSA:1106, U2:85, SA:9

Ref: [2003A&A...399..141M]

(reference key)

Type: reflection nebula

Mag: B=?, V=?

Size: 12′ x 8′
PA: ?

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

IC 5076 is a fairly small (6 arcmin by 6 arcmin) diffuse nebula west of a bright star. Roberts's position is just east of the star, but as there is nothing else nearby matching his description, I've taken the nebula as the one he found.

Historical observations

Roberts, I. (1898)

Roberts, I. (1898) "Nebulae which are not recorded in the Catalogues found upon Photographs by Isaac Roberts, D.Sc., F.R.S." , A.N. 3509.

Detailed for the first time in this publication.

Published comments

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

Ced 185 (IC 5076)

Position (1900): RA 21 52.5, Dec + 47 2

Star: +46 3111 (Mp=5.62, V=5.76, SpT=cB8e)

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: 9'x6'

Notes: "IC 5076. Disc. Roberts 1895 (607). (93 Pl 45 131 48, 603 Pl 23, 610). R. +46 3111 = HD 199478 = Boss 29219."

Dorschner & Gürtler (1963)

Untersuchungen uber Reflexionsnebel.

DG 165

= IC 5076, Ced 185

Pos (1950.0) 20:54.2, +47:13

Size: 12x8 (blue), 8x8 (red).

Lynds, B.T. (1965)

Beverly Lynds (Astrophysical Journal Supplement, No 105, 1965) in her Catalogue of Bright Nebulae notes that this nebula is very bright, more prominent on the blue POSS plate and has a maximum size of 7' x 7'.

Magakian T. Yu. (2003)

= DG 165, [RK68] 103, VdB 137, IC5076, GN 20.54.1, Ced 185, Other designations: V2140 Cyg

Class: C (reflection neb)

Photo index

Photo Index by Jim Lucyk: Deep Sky #7 Su84 p15, Vehrenberg's Atlas of Galactic Neb-2 p106.

Modern observations

Tom Lorenzin

Tom Lorenzin, in the electronic version of "1000+ The Amateur Astronomers' Field Guide to Deep Sky Observing", notes: "9.9M; 7' diameter; faint, large and round; reflection nebulosity surrounds 5.5M star 3 degrees NE of Deneb (Alpha CYG)."

Brian Skiff

15cm - nothing obvious @ 80x/140x. BS, 17Jun1991, Anderson Mesa.

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