58.  NSV 12560   (NL?)   Range:  -15.1V
     Position:   19 55 46.98  -20 31 02.6  (J2000, from .dat file)
     Magnitude:  V=15.060  B-V=0.063       (in .dat file)

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

a) Comparison star sequence
    
1    19 55 40.5  -20 33 18   -92 -135  3  11.782  0.020   0.703  0.007   
2    19 55 47.0  -20 33 38     0 -155  3  12.136  0.030   0.676  0.007   
3    19 56 01.7  -20 31 54   207  -51  3  12.839  0.017   0.839  0.010   
4    19 55 44.8  -20 30 55   -30    8  3  13.159  0.013   0.773  0.012   
5    19 56 03.8  -20 33 24   236 -141  3  13.578  0.023   0.867  0.003   
6    19 55 35.9  -20 29 13  -156  111  3  14.193  0.011   0.905  0.013   
7    19 55 48.3  -20 29 45    19   78  3  14.527  0.017   1.165  0.003   
8    19 55 35.3  -20 31 01  -164    2  3  14.697  0.017   1.322  0.013   
9    19 55 40.6  -20 31 02   -90    1  3  15.259  0.014   0.586  0.018   
10   19 55 46.0  -20 30 52   -15   11  3  15.805  0.019   0.850  0.007   
11   19 55 44.8  -20 30 27   -31   36  3  16.645  0.026   0.775  0.013   


b) Wide-colour extension for CCD calibration

     19 56 05.6  -20 29 35   262   89  3  14.455  0.017   0.256  0.013   
     19 55 29.8  -20 33 39  -242 -156  3  14.270  0.031   1.386  0.009   
     19 56 06.7  -20 26 17   277  286  3  16.762  0.000   1.513  0.056   


Notes:

1. This variable is called Sgr3 in Downes, Webbink and Shara, PASP, 109, 
734, 1997.

2. This star is a high proper motion object, and is in Luyten's catalogue.

3. The brightest star in the east has a reliable Tycho-2 magnitude of V=93 
and the northern component of the bright double star on the east edge has a 
Tycho-2 magnitude of V=105.


Bruce Sumner
Revised 24 July 1999