[vsnet-chat 1903] Sequence for HM Sge from literature

[bas@lowell.Lowell.Edu (Brian Skiff)]

     While browsing in the "PZP", I came upon a photoelectric sequence for the
symbiotic star HM Sge by Noskova et al.  This is apparently the sequence 
adopted by the BAA (AAVSO chart not posted).  Below I give accurate positions
and IDs for the stars.  The work was done with a 60cm telescope, and the
authors claim errors of +/-0.02 mag. for stars brighter than mag. 13, and 0.04
mag. for fainter stars.  The U-B values are rather noisier (+/-0.06 mag.), and
at least some of these appear to be inconsistent with the B-V (specifically
too blue) even considering the reddening in the region.
     Are observers using some other sequence for this star?

\Brian

============================

source:  1979PZP.....3..755N
         NOSKOVA R.I., SAVELJEVA M.V., ARHIPOVA V.P., GORANSKIJ V.P., and
           DOKUCHAEVA O.D.
         Perem. Zvezdy Prilozh., 3, 755-758 (1979)
         New photometric sequence for HM Sge.


Name        RA  (2000)  Dec        GSC       V    B-V   U-B    Remarks
HM Sge   19 41 57.1  +16 44 40  1602-1636
1=b      19 42 06.6  +16 26 19  1602-2960   9.32  1.16  0.86   HD 353445 (K0)
2=a      19 42 25.9  +16 51 33  1602-1008   9.47  0.24 -0.16   HD 353437 (A0)
3=g      19 41 47.6  +16 41 59  1602-2994  10.72  0.64  0.16   BD+16 3965
4=c      19 41 50.8  +16 48 03  1602-1401  11.35  0.61  0.44
5=e      19 42 07.3  +16 45 23  1602-2369  11.90  1.38  1.04
6=d      19 41 57.8  +16 46 27  1602-2023  11.96  0.61  0.33
7=f      19 41 47.2  +16 42 49             13.44  1.38  0.75
8=h      19 41 57.2  +16 44 29             13.66  0.54  0.31
9=m      19 41 57.8  +16 45 19  1602-2048  13.81  1.67  0.90
10=k     19 41 59.7  +16 45 07             14.37  0.81  0.20

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