Results of photoelectric UBV RI photometry of 78 stars and photographic PDS and CCD photometry for 437 stars are presented for Collinder 110, an old open cluster at low Galactic latitude. Proper motions obtained from Lick Sky Survey plates were used to identify 39 stars as foreground objects. The clusterÏs reddening, distance, and age are estimated as E(B[V )\0.50^0.03 mag, r\1950^300 pc, and t\1.4^0.3 Gyr, assuming a solar metal abundance.
Dawson, Dennis Dr and Ianna, Phillip A. Dr, "Collinder 110: An Old Open Cluster in Monoceros" (1998). Physics, Astronomy & Meteorology Faculty Papers. 1.