113  V SAGITTAE   (NL+E)   Range: 8.6-13.9V
     Position:   20 20 14.7  +21 06 11 (J2000, in .dat file)
     Magnitude:  V=12.618  B-V=0.372   (in .dat file)

ID     RA  (2000)   DEC       X    Y   N    V      ERR     B-V    ERR     

1    20 20 10.9  +21 07 51   -53  100  3  12.326  0.013   1.609  0.014   
2    20 20 25.4  +21 05 14   149  -57  3  13.126  0.017   0.379  0.012   
3    20 20 14.6  +21 07 11    -1   60  3  13.244  0.023   1.216  0.019   
4    20 20 18.9  +21 06 11    58    0  3  13.957  0.008   1.046  0.009   
5    20 20 14.1  +21 06 09    -8   -2  2  14.319  0.004   0.891  0.010   
6    20 20 11.4  +21 07 13   -46   62  3  14.445  0.017   0.633  0.016   
7    20 20 06.8  +21 08 45  -110  154  3  14.657  0.028   0.730  0.014   
8    20 20 22.3  +21 06 49   106   38  2  15.134  0.039   0.639  0.078   


Some brighter V comparison stars are available on AAVSO chart 2015520(d)
1965. They are PEP measurements from Smak: 

     20 19 46.3  +21 14 42  -199  255      8.2
     20 20 46.3  +21 13 42   221  226      9.2
     20 20 41.0  +21 07 24   184   36     10.7
     20 20 31.6  +21 10 04   118  116     10.9
     20 19 58.3  +21 04 54  -115  -38     11.7
     20 20 31.7  +21 11 48   119  169     12.6

Additionally three Henden sequence stars were also measured by Smak:

     Smak    Henden
     12.3    12.326
     13.1    13.244
     13.9    13.957


The Henden magnitude of the close companion, 10 arcsec west, was obtained
on two nights of good seeing, Additional V and B-V measures have also been
made of this companion:
 
    Herbig    14arcsec aperture  14.40  0.83
    Williams   7arcsec aperture  14.34  0.96
    Henden     8arcsec aperture  14.32  0.89

Ref: Williams, et. al.(MNRAS,219,809,1986)
     Herbig, et. al.(ApJ 141, 617, 1965)
     Henden, here.


Bruce Sumner
14 April 1999