Lynga catalogue
Field Data
Cluster number (IAU) C1640-473
Old Cluster NGC
notation 6200
OCL number/Lund number 978 718
Right ascension (1950.0) 16 40.5
Declination (1950.0) -47 23
10 year prec. RA/Dec .74 -1.0
Galactic longitude 338.00
Galactic latitude -1.09
Sky survey SERC
Chart type and number J 277
Centre of chart (RA,Dec) 16 48 -45
Pos. on chart x,y mm 246 47
Tr. cl. (ref. 19/320=a/b) II 2 m :b
Membership (320) 40
Angular diameter (320) 14
Selected angular diameter 12 ( 50)
Distance, weight 2054
Distance, reference 2400 ( 64)
E(B-V), v=var. 0.581
Turn-off col.,weight (jdl) -.30 w= 1
Derived log(age) 6.928
log(age), reference 6.00 ( 502)
Fe/H (jdl)
Radial velocity, weight
References 177 /
used by
Janes, Duke
and Lynga (jdl)
Number of member
stars with
peculiar
spectral
types
References for
peculiar
stars
Total V magnitude 7.4 ( 422)
Integrated B-V (422) .34
Number of obs. stars (422) 15
Richness class (265) 1
Earliest sp. cl. (50,37)
Mag of brightest star (50)
Galactic R and z 6460 -42
Linear diameter 8.4
Comment