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IC 1283 (15,069 of 18,816)

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IC 1283

IC 1283, DG 151, Ced 157c, LBN 47, LBN 011.75-01.51

RA: 18h 17m 16.6s
Dec: −19° 44′ 28.7″

Con: Sagittarius
Ch: MSA:1368, U2:339, SA:22

Ref: SIMBAD, Skiff20080430-U

(reference key)

Type: bright nebula (HII region)

Mag: B=?, V=?

Size: 18′ x 13′
PA: ?

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

IC 1283 is a part of IC 1284. In AN 3111, Barnard gives the name (BD -19d 4948) and correct position of the nebulous star that he found on one of his plates. He continues, "The nebulosity is very small and principally noticeable on the southern side of the star." This is an accurate description as far as it goes. Later, in AN 4239, he describes the entire area as having a "large bed of diffused nebulosity" stretching between I1284 and BD -20d 5055 nearly a degree to the southwest.

The Palomar and Siding Spring survey plates show Barnard's nebulosity and large swaths of Milky Way stars throughout the entire area. See NGC 6589 and NGC 6590 for more discussion of Barnard's and Swift's observations here.

Historical observations

Barnard, E.E. (1892)

Barnard, E. E. (1892) "Photographic nebulosities and groups of nebulous stars", A.N. 3111.

Discussed: IC 1274, 1275, 1283, 1287,

Published comments

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

Ced 157c (IC 1283)

Position (1900): RA 18 11.4, Dec - 19 46

Star: -19 4948 (Mp=8.75, V=8.80, SpT=B5)

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 without conspicuous structure (eg. lambda Scorpii)

Size: 4'x2'

Notes: "157 c = IC 1283 = -19 4948 nebulous. Disc. Barnard 1892 (51). 157 (93) Pl 31. R. 19 4948 = HD 167722."

Dorschner & Gürtler (1963)

Untersuchungen uber Reflexionsnebel.

DG 151

= IC 1283, IC 1284, Ced 157c, 157d

Pos (1950.0) 18:14.4, −19:43

Size: 18x13 (blue), 14x12 (red).

Lynds, B.T. (1965)

(Astrophysical Journal Supplement, No 105, 1965) in her Catalogue of Bright Nebulae notes that this isolated nebula is moderately bright, equally prominent on the red and blue POSS plate and has a maximum size of 15' x 15'.

Photo index

by Jim Lucyk: Deep Sky #11 Su85 p21, Vehrenberg's Atlas of Galactic Neb-2 p38.

Helwan Obs. Bulletin No 9 (1912)

See remarks on NGC 6595.

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