89   PQ AQUILAE   (UGSU:)   Range: 15.0-~19 
     Position:   19 53 06.64  +12 59 00.8 (J2000, from .dat file)
     Magnitude:  V=17.284  B-V=0.234      (from .dat file)

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

a) Comparison star sequence

1    19 53 17.9  +13 01 18   165  137  1  10.417  0.000   1.357  0.000   
2    19 52 59.8  +12 57 14   -99 -107  1  11.421  0.000   1.553  0.001   
3    19 53 10.1  +12 58 14    50  -47  1  12.142  0.001   1.216  0.001   
4    19 53 05.7  +12 56 33   -14 -148  1  12.547  0.001   0.463  0.001   
5    19 53 05.3  +12 58 08   -20  -53  1  13.060  0.001   0.460  0.001   
6    19 52 59.2  +13 04 04  -108  303  1  13.716  0.001   0.635  0.002   
7    19 53 20.1  +12 58 08   197  -53  1  14.234  0.002   0.742  0.003   
8    19 53 10.0  +12 59 08    50    7  1  14.830  0.002   0.673  0.004   
9    19 53 05.4  +12 59 02   -17    1  1  15.313  0.003   0.700  0.005   
10   19 53 11.7  +12 59 21    75   20  1  15.658  0.006   0.989  0.010   
11   19 53 08.3  +12 58 39    25  -22  1  16.232  0.009   0.762  0.013   
12   19 53 04.7  +12 59 30   -28   29  1  16.826  0.013   1.040  0.023   
13   19 53 09.4  +12 58 48    40  -13  1  18.077  0.048   0.755  0.069


b) Wide-colour extension for CCD calibration
   
     19 53 27.7  +12 55 38   308 -203  1  12.155  0.001   0.369  0.001   
     19 53 20.1  +12 55 49   197 -192  1  13.119  0.001   0.392  0.001   
     19 53 16.3  +12 56 56   142 -125  1  13.652  0.002   1.401  0.004   
     19 52 58.2  +12 55 59  -122 -182  1  14.314  0.002   1.661  0.004   


Notes:

1. This single night sequence, based on field photometry by Arne Henden, 
has nominal external errors of 0.02 magnitude, apart from star #13 which 
has larger errors due to its faintness. 

2. The three brightest stars are saturated and their magnitudes are only
approximate. Star #1 has reliable Tycho-2 photometry: V=9.76 +/-0.03. 

Bruce Sumner
Posted 020119