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NGC 2071 (3,949 of 18,816)


oc gc pln bn dn gx gxcl ast aka lost




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NGC 2071

NGC 2071, DG 81, VDB 60, Bernes 101, Ced 55v, LBN 938, LBN 205.32-14.04, Magakian 153, IV 36, GC 1270

RA: 05h 47m 8s
Dec: +00° 17′ 53″

Con: Orion
Ch: MSA:253, U2:226, SA:11

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

(reference key)

Type: reflection nebula

Mag: B=?, V=?

Size: ?
PA: ?

Historical observations

William Herschel (c.1784)

Synonyms: H IV-036

Discovered in 1786 by William Herschel with an 18.7-inch f/13 speculum telescope. He called it "a star affected with vF extensive milky chevelure. The star not quite central." In the Philosophical Transactions, 1791, Herschel wrote: "January 1, 1786. A star surrounded with milky chevelure; the star is not central. A second observation calls it affected with a very faint, and extensive, milky chevelure. A third only mentions a star affected with milky chevelure. As by the word chevelure I always denoted something relating to a center, the connection cannot be doubted."

Published comments

Pickering, E.C. (1890)

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)

Confirms NGC 2071 (No. 26 in the table).

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

Ced 55v (NGC 2071)

Position (1900): RA 5 42, Dec + 0 16

Star: 0 1181 (Mp=10.8, V=10.4, SpT=B9)

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)

Size: 4.5'x3.5'

Notes: "Ced 55 v = NGC 2071 = GC 1270 = H IV 36. Disc. 1786. FA 98. WP 166. (114, 173, 196, 216, 238, 366, 409 Pl 14, 578, 604, 630 Pl 34, 715). 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."

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 81

= NGC 2071, Ced 55v

Pos (1950.0) 05:44.6, +0:18

Size: 9x9 (blue), 8x8 (red).

Sulentic & Tifft (1973)

The RNGC (Sulentic and Tifft 1973) notes that this is a diffuse nebula.

Bernes, C. (1977)

Bernes, C. (1977) A catalogue of bright nebulosities in opaque dust clouds.

= Bernes 101

Magakian T. Yu. (2003)

= DG 81, [RK68] 43, VdB 60, Bernes 101, N2071, GN 05.44.6, Ced 55v

Class: C (reflection neb)

Photo index

by Jim Lucyk: Vehrenberg's Atlas of Galactic Neb-1 p77.

Modern observations

Steve Coe

Coe, using a 13" f/5.6, notes: " Faint, pretty small, irregularly round, seen at 100X. Going to 220X brings out the fact that the star within this nebula is double. It is approximately 10th and 13th mag with a seperation of 10" in PA 200 degrees. Averted vision makes the nebluosity grow and elongate in the E-W direction."

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