The three stars measured in the field of Ruprecht 166 = NGC 5120 by Moffat & Vogt appear in SIMBAD without coordinates. These are listed below along with a few IDs. The cluster field has been observed more comprehensively by Piatti & Claria (2001A&A...379..453P). The chart at WEBDA based on their data shows the cluster in the upper-right portion of the frame, near the origin of their x,y system. The cluster as given in SIMBAD and in WEBDA is somewhat in error, and a better figure is shown below. ------------------------------------------------------------------------------- Coordinates and identifications for stars in Ruprecht 166 = NGC 5120 version: 25 Dec 2003 source: 1973A&AS...10..135M MOFFAT A.F.J. and VOGT N. Astron. Astrophys., Suppl. Ser., 10, 135-193 (1973) Southern open star clusters III. UBV-Hbeta photometry of 28 clusters between galactic longitudes 297 and 353 degrees. Dictionary: (Nos 1-3). cluster center: 13 25 42 -63 27.2 (J2000) ID RA (J2000) Dec s GSC Tycho-2 V 1 13 25 52.20 -63 27 00.1 M 8995-4765 8995-4765-1 11.3 2 13 25 46.98 -63 27 08.3 U 8995-3624 12.8 3 13 25 38.37 -63 27 05.9 U 8994-3349 12.7