[vsnet-chat 1800] Re: PR Her

[aah@nofs.navy.mil]

I imaged the field of PR Her last night under non-photometric
conditions.  However, it is straightforward to obtain differential
(B-V) colors and look for blue objects near the location of
this variable.
  The only blue object is at
       RA   (J2000) DEC        V    B-V
    18:08:04.44  +38:46:17.1  21.3 -0.5
(where I expect the B-V color to have large error bars).
This is not quite where D&S point, but there is nothing at those
locations to V>23.  There is a very much fainter object (V=23)
about 20 arcsec south, as well as a trio of brighter stars about
20 arcsec to the west.
  I propose the object listed above is the variable.  I'll
get another image set whenever conditions become photometric
as a second check.
Arne

--------------------------------------------------------------------
Arne Henden                               Instruments/software/CCDs
US Naval Observatory Flagstaff Station    Cepheids/photometry/IR
P.O. Box 1149                             http://ftp.nofs.navy.mil  
Flagstaff, AZ 86002-1149                  Voice: (520)779-5132
aah@nofs.navy.mil                         FAX:   (520)774-3626

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