Globular star cluster (a Centauri), N.G.C. 5139, R.A. 13h 19m, Decl, - 46[o] 19', Royal Observatory, Cape of Good Hope, 1903, February 19, 24-inch Refractor, focal length, 22 1/2ft, exposure, 509 min Globular star cluster (a Centauri) 1903
Cluster in Hercules, 1899, July 13, R.A., 16h 37m, decl, [plus] 36 degree 44', enlarged 5. 6 diam, exposure, 2 hrs, taken with the Crossley reflector of the Lick Observatory Cluster in Hercules 1899
Globular Star Cluster in Canes Venatici; M.3. N.G.C. 5272. R.A., 13h 36m. Decl., + 29 degrees; G.W. Ritchey, Mount Wilson Observatory; 1910, April 9; 60-inch Reflector; Focal length, 299 in.; Exposure, 3 1/2 hours Globular Star Cluster in Canes Venatici; M.3. N.G.C. 5272. R.A. 1910