Lynga catalogue

 Field                          Data

 Cluster number (IAU)          C1028-595
 Old Cluster                   Collinder
 notation                      223
 OCL number/Lund number        818   549
 Right ascension (1950.0)      10 28.7
 Declination (1950.0)          -59 34
 10 year prec. RA/Dec          .37 -3.0
 Galactic longitude            286.19
 Galactic latitude             -1.87
 Sky survey                    SERC
 Chart type and number         J  128
 Centre of chart (RA,Dec)      10 46 -60
 Pos. on chart x,y mm          291   178
 Tr. cl. (ref. 19/320=a/b)     II 2 m  :b
 Membership (320)              35
 Angular diameter (320)        7
 Selected angular diameter     9 ( 255)
 Distance, weight              1686
 Distance, reference           
 E(B-V), v=var.                0.175
 Turn-off col.,weight (jdl)    
 Derived log(age)              7.776
 log(age), reference           
 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             9.4 (  50)
 Integrated B-V (422)          
 Number of obs. stars (422)    
 Richness class (265)          
 Earliest sp. cl. (50,37)      
 Mag of brightest star (50)    
 Galactic R and z              
 Linear diameter               
 Comment