150  V348 SAGITTARII   (Unique)   Range: 10.6-18.1V
     Position:   18 40 19.91  -22 54 28.9 (J2000, from .dat file)
     Magnitude:  V=18.066  B-V=0.466      (from .dat file)

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

a) Comparison star sequence

1    18 40 44.1  -22 53 10   335   79  3  11.286  0.415   0.403  0.149   
2    18 40 15.6  -22 52 44   -59  105  3  11.611  0.249   0.223  0.032   
3    18 40 28.1  -22 53 46   114   44  3  12.062  0.100   0.879  0.108   
4    18 40 08.5  -22 51 07  -157  202  3  12.200  0.052   1.243  0.082   
5    18 40 24.0  -22 52 43    57  106  3  12.737  0.035   1.209  0.006   
6    18 40 05.3  -22 51 20  -202  189  3  12.878  0.035   0.427  0.003   
7    18 40 31.6  -22 49 13   162  316  5  13.348  0.025   0.739  0.007   
8    18 40 17.2  -22 56 43   -37 -134  5  13.530  0.032   0.885  0.012   
9    18 40 19.7  -22 52 34    -2  115  5  13.754  0.036   1.672  0.004   
10   18 40 14.9  -22 54 03   -69   26  3  14.264  0.027   1.289  0.009   
11   18 40 15.5  -22 53 49   -61   40  3  14.717  0.005   1.064  0.026   
12   18 40 21.0  -22 54 24    15    5  3  14.752  0.027   1.233  0.009   
13   18 40 19.2  -22 53 46    -9   43  3  15.142  0.048   1.858  0.010   
14   18 40 15.7  -22 54 48   -57  -19  3  15.571  0.027   1.203  0.006   
15   18 40 17.5  -22 54 36   -34   -6  3  16.050  0.023   0.942  0.010   
16   18 40 18.9  -22 54 06   -13   23  3  16.506  0.034   1.561  0.012   
17   18 40 18.3  -22 54 49   -23  -20  3  16.791  0.034   0.960  0.035   
18   18 40 18.2  -22 54 20   -24    9  5  17.847  0.013   1.126  0.107   


b) Wide-colour extension for CCD calibration
   
     18 40 07.5  -22 57 12  -171 -163  3  16.321  0.017   0.300  0.005   
     18 40 42.4  -22 54 47   311  -18  3  15.017  0.037   1.856  0.008   
     18 40 34.0  -22 53 34   195   55  3  14.087  0.044   1.867  0.005   
     18 40 02.3  -22 57 30  -243 -181  3  14.556  0.047   1.875  0.012   


Notes:

1. Stars #1, #2 and #3 are saturated, and their magnitudes and colours 
are approximate.

2. There is an AAVSO preliminary chart for this variable, dated 07/1996.
It has the following stars in common with this sequence. The VSS RASNZ
chart 402, dated 1977, also has the same sequence stars as used by the
AAVSO.

                        ID   Henden    AAVSO
                               V        V
                        1    11.286    11.0
                        2    11.611    11.6
                        3    12.062    12.0
                        4    12.200    12.1
                        5    12.737    12.7
                        6    12.878    12.9
                        7    13.348    13.4
                        8    13.580    13.4
                        9    13.754    13.9
                        10   14.264    14.5
                        11   14.717    15.0
                        12   14.752    14.8 


Bruce Sumner
19 August 1999