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NGC 6589 (15,061 of 18,816)

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NGC 6589

NGC 6589, IC 4690, Ced 157a, DG 149, VDB 118, LBN 46A, Gum 78A, ESO 590-14, Magakian 757

RA: 18h 16m 55.3s
Dec: −19° 46′ 38″

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

Ref: SIMBAD, Corwin, NGC/IC, [2003A&A...399..141M]

(reference key)

Type: reflection nebula

Mag: B=10.5, V=?

Size: 4′ x 3′
PA: ?

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

NGC 6589 may also be IC 4690 (which see for more discussion). Swift's position for N6589 is about 36 seconds of time off, a mistake corrected by Barnard, and included in the IC2 Notes. Ironically, Barnard is also responsible for a mistake of his own which makes the identity with I4690 probable.

Also see discussion under NGC 6590 and IC 1283 for more on this field.

Historical observations

Barnard, E.E. (1892)

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

Discussed.

Published comments

Helwan Obs. Bulletin No 9 (1912)

[see remarks for NGC 6595]

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

Ced 157a (NGC 6589)

Position (1900): RA 18 10.4, Dec - 19 49

Star: -19 4940 (Mp=9.55, V=9.50, 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: 5'x3.5'

Notes: "157 a = NGC 6589. Disc. Swift 1885 (733). FA 86. (49, 51, 88 Pl 55, 93 Pl 29 Pl 31, 114, 216, 366, 715). R. -19 4940 = HD 167638."

Lynds, B.T. (1965)

Beverly Lynds (Astrophysical Journal Supplement, No 105, 1965) in her Catalogue of Bright Nebulae notes that this nebula is bright, more prominent on the blue POSS plate and has a maximum size of 4' x 3'.

Dorschner & Gürtler (1963)

Untersuchungen uber Reflexionsnebel.

DG 149

= NGC 6589, Ced 157a

Pos (1950.0) 18:13.3, −19:48

Size: 4x3 (blue), 3x3 (red).

Sulentic & Tifft (1973)

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

Magakian T. Yu. (2003)

= DG 149, [RK68] 88, VdB 118, N6589, GN 18.14.0, Ced 157a

Class: C+E (emission and reflection neb)

Photo index

Photo Index by Jim Lucyk: 6590, Astronomy mag. 10/84 (cover), Deep Sky #11 Su85 p20.

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