Lynga catalogue

 Field                          Data

 Cluster number (IAU)          C0555+219
 Old Cluster                   Basel
 notation                      11b
 OCL number/Lund number        1209
 Right ascension (1950.0)      5 55.2
 Declination (1950.0)          +21 58
 10 year prec. RA/Dec          .60   .0
 Galactic longitude            187.44
 Galactic latitude             -1.11
 Sky survey                    POSS
 Chart type and number         O  416
 Centre of chart (RA,Dec)      5 38  24
 Pos. on chart x,y mm          29    62
 Tr. cl. (ref. 19/320=a/b)     III 1 p  :b
 Membership (320)              12
 Angular diameter (320)        3.0
 Selected angular diameter     9 (  64)
 Distance, weight              897
 Distance, reference           1500 (  64)
 E(B-V), v=var.                0.09
 Turn-off col.,weight (jdl)    
 Derived log(age)              9.12
 log(age), reference           8.30 ( 171)
 Fe/H (jdl)                    
 Radial velocity, weight       
 References                    
 used by                       
 Janes, Duke                   
 and Lynga (jdl)               
 Number of member              
 stars with                    
 peculiar                      
 spectral                      
 types                         
 References for                
 peculiar                      
  stars                        
 Total V magnitude             8.9 ( 422)
 Integrated B-V (422)          .56
 Number of obs. stars (422)    70
 Richness class (265)          
 Earliest sp. cl. (50,37)      
 Mag of brightest star (50)    
 Galactic R and z              9980  -29
 Linear diameter               3.9
 Comment