Object: NGC 6531 (*)
Open Cluster, type I3m, in Sagittarius Right Ascension (2000.0): 18:04:13.3 (h:m:s) Declination (2000.0): -22:29:24 (deg:m:s) m_v: 5.9 (mag) Dimension: 16.00 (arcmin) Cross Identifications: M 21, OCL 26, ESO 521-SC19