In an IAU Colloquium volume on variables in globular clusters, I noticed
a set of suspect variables found by Terzan et al. in the field of NGC 4590.
Once accurate positions were obtained, they were identifiable in the NSV
as shown below.
The positions are all from UCAC1. The citation to this paper is not
present in SIMBAD. I am not certain how to build a 'bibcode' for such
volumes, but show basic elements of the publication below.
\Brian
source: 1973IAUCo..21...76T
TERZAN A., RUTILY B., and OUNNAS CH.
IAU Colloq. 21, Variable stars in globular clusters and
related systems, 76-81 (1973); (J.D. Fernie, ed.)
Variable stars in NGC 4590.
ID RA (J2000) Dec s GSC GCVS
1 12 38 41.45 -27 08 36.3 U 6691-0516 NSV 5809
2* 12 38 59.20 -27 00 21.6 U NSV 5818
3* 12 39 01.08 -26 27 19.3 U 6691-1245 NSV 5821
4* 12 41 11.40 -26 39 10.3 U 6691-1109 NSV 5853
5* 12 41 13.45 -26 20 07.0 U 6691-1116 NSV 5854
Notes
2 southern star of 13" pair.
3 V=14.62, B-V-0.66 (1998AJ....116.2556P).
4 western star of 10" pair.
5 southeastern star of 18" pair.

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