166  HX PEGASI   (UG)   Range: 12.5-16.6V
     Position:   23 40 23.72  +12 37 42.3 (J2000, from .dat file)
     Magnitude:  V=13.770  B-V=0.064      (from .dat file)

ID     RA  (2000)   DEC       X    Y   N    V      ERR     B-V    ERR   
 
a) Comparison star sequence

1    23 40 44.9  +12 33 08   311 -274  1  12.563  0.001   1.212  0.002   
2    23 40 07.3  +12 38 54  -239   72  1  13.606  0.002   0.877  0.003   
3    23 40 10.6  +12 41 36  -192  234  1  13.672  0.002   0.867  0.003   
4    23 40 35.8  +12 37 01   178  -41  5  13.858  0.020   0.876  0.019   
5    23 40 46.5  +12 37 58   334   16  1  14.843  0.003   0.719  0.005   
6    23 40 25.9  +12 34 04    32 -219  2  15.253  0.019   0.741  0.010   
7    23 40 04.1  +12 38 01  -286   19  1  15.518  0.005   0.335  0.006   
8    23 40 08.2  +12 31 40  -227 -362  1  15.778  0.006   0.664  0.008   
9    23 40 18.1  +12 38 01   -82   19  5  16.093  0.136   1.051  0.063   
10   23 40 33.0  +12 34 33   137 -189  5  16.932  0.039   0.594  0.023   
11   23 40 13.2  +12 40 27  -154  165  1  17.400  0.017   0.775  0.031   


b) Wide-colour extension for CCD calibration

No wide-colour extension stars are available.


Notes:

1. Sequence stars observed on a single night have nominal errors of 0.02
magnitudes.

2. The AAVSO Preliminary Chart dated October 1995 for this variable shows 
a sequence based on GSC magnitudes. The AAVSO chart needs to be revised
with this new sequence replacing the GSC sequence.

3. Star 9 has large errors and may be slightly variable. However it is 
satisfactory for visual use.


Bruce Sumner
6 September 2000