[Message Prev][Message Next][Thread Prev][Thread Next][Message Index][Thread Index]

[vsnet-sequence 28] HX Peg sequence

Here is a comparison star sequence to replace the GSC sequence that 
appears on the AAVSO chart for this variable. Thanks are due to Arne 
Henden for obtaining the raw photometric data used to derive this 
sequence.
Regards,
Bruce Sumner
------------
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 
  
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.

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

Bruce Sumner
6 September 2000

VSNET Home Page

vsnet-adm@kusastro.kyoto-u.ac.jp