216  ES AQUILAE   (RCB:)   Range: 11.6v-17.7V
     Position: 19 32 21.61  -00 11 30.6   (J2000, from .dat file)
     Magnitude: V=17.663  B-V=1.639       (from .dat file)

ID     RA (2000)    DEC       X    Y   N    V      ERR     B-V    ERR
 
a) Comparison star sequence
 
1    19 32 33.3  -00 11 02   176   29  2  11.220  0.140   1.269  0.111   
2    19 32 23.3  -00 13 29    25 -118  2  12.076  0.016   1.308  0.017   
3    19 32 30.8  -00 07 20   138  251  2  12.701  0.008   1.337  0.010   
4    19 32 04.7  -00 11 50  -253  -19  2  12.910  0.008   0.786  0.002   
5    19 32 38.0  -00 06 27   245  304  2  13.590  0.006   1.412  0.013   
6    19 32 30.8  -00 09 37   138  114  2  14.108  0.010   1.030  0.001   
7    19 32 15.8  -00 11 36   -86   -5  2  14.495  0.010   1.161  0.001   
8    19 32 23.1  -00 12 47    23  -76  2  14.822  0.006   0.923  0.004   
9    19 32 21.8  -00 09 43     4  108  2  15.178  0.006   1.002  0.009   
10   19 32 23.2  -00 10 29    23   62  2  15.548  0.010   1.150  0.003   
11   19 32 20.6  -00 13 07   -15  -96  2  15.904  0.014   0.959  0.003   
12   19 32 21.2  -00 13 23    -6 -112  2  16.500  0.011   0.694  0.003   
13   19 32 23.8  -00 11 23    33    8  2  17.118  0.019   1.045  0.016   
14   19 32 27.4  -00 11 02    87   29  2  18.096  0.008   0.912  0.011   


b) Wide-colour extension for CCD calibration

     19 32 26.3  -00 06 30    71  301  2  14.373  0.016   0.591  0.003   
     19 32 00.2  -00 05 29  -322  362  2  14.441  0.011   0.633  0.001   
     19 32 17.1  -00 06 25   -67  306  2  12.518  0.008   1.740  0.006   
     19 32 27.3  -00 10 47    86   44  2  13.807  0.020   1.812  0.005   


Notes:

1. Star #1 is saturated and its magnitude and colour are approximate.
However there is a more accurate Tycho-2 magnitude of V=10.78+/-0.06
which should be in place of the value in the table above. 

2. This probable RCB variable is classified in GCVS4 as SR 13.2-<15.1p.


Bruce Sumner
April 2 2001