Year Name Publication Text 1915 Melotte MEM.RAS,60,181 4 1918 Charlier LD.M,S2,N19,18 4 1130 1.3 1922 Raab LD.M,S2,N30,37 1930 Trumpler LOB,14,172 4.5 2600 3.4 1931 Collinder LD.AN,2,LK 8 3120 7.3 20 1950 Barhatova A.ZH,27,182 8 1760 4.1 1966 Ruprecht BAC,17,34 Classif.:II 1 p two nuclei 1973 Sulentic RNGC,112 ocl,pret.large,pret.compressed,extended degr