[vsnet-chat 2307] Re: GM Sgr

[aah@nofs.navy.mil]

Stan Walker asked:
>I don't know much about GM Sgr - does anyone have a period or anything? 
  Goranskij in IBVS 3464 reports a binary period of 
    2447707.454 + 0.7365483*E(days)
with a range of about one magnitude.  I know of no further
improvement or even confirmation of the period (though Kato-san certainly
has been observing this system and should have the answer!).
  This field is too far south for me to get photometry for
more than a couple of hours (since it transits at twilight);
it should be ideal for Stan.  I have too many competing projects
in the galactic center direction anyway, and these crowded fields are
a real pain to process.
Arne

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