[vsnet-chat 2298] gm sgr

[aah@nofs.navy.mil]

This appears to be a *very* rapid burst.  Here is
my photometry from last night:

  HJD         V     B-V    verr   bverr
51437.6080  13.598  0.372  0.007  0.008

So the variable returned to its ~quiescent value in less than
a half-day.
Here is some additional photometry of the brighter stars in the field:

 GSC         RA  (J2000)  DEC        V     B-V    verr   bverr
6848 3226  18:19:03.38 -25:19:40.8  8.972  0.829  0.008  0.019
6848 3882  18:19:21.62 -25:20:00.5  9.272  0.520  0.008  0.019
           18:19:05.14 -25:22:20.1  9.838  0.751  0.008  0.019
           18:18:58.80 -25:18:18.8 11.111  1.860  0.018  0.022

(errors are purely Poisson and don't reflect a possible zero
point offset due to a single night of photometry.)
Note that the third comparison star in this list is identical to
the first, staturated star in Bruce Sumner's sequence:
http://ftp.nofs.navy.mil/pub/outgoing/aah/sequence/sumner/gmsgr.seq

Arne

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