Electronic Telegram No. 202
Central Bureau for Astronomical Telegrams
INTERNATIONAL ASTRONOMICAL UNION
M.S. 18, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
IAUSUBS@CFA.HARVARD.EDU or FAX 617-495-7231 (subscriptions)
CBAT@CFA.HARVARD.EDU (science)
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VARIABLE STAR NEAR M27
     Wolfgang Renz, Karlsruhe, Germany; and E. O. Waagen, AAVSO,
report the CCD discovery of a variable star near M27 by Joerg Hanisch
(Gescher, Germany) on unfiltered CCD images taken on about Aug. 18.0
UT (the mag given as about 15.8) and independently by Hans-Goeran
Lindberg (Skultuna, Sweden) on an image taken on Aug. 18.9.  Hanisch
provides the following position for the variable:  R.A. = 19h59m51s.29,
Decl. = +22o42'32".3 (equinox 2000.0).  Renz also forwards the
following position end figures obtained by D. Boyd (Oxfordshire, U.K.,
0.35-m reflector) from CCD frames taken on Aug. 21.92:  51s.283, 32".13.
Hanisch adds that a USNO-B1.0 star of red mag 17.3 has position end
figures 51s.04, 35".4, but that there is no bright, very red star
present at the location of the variable on Digitized Sky Survey infrared
plates or on 2MASS J, H and K_s images.  Waagen and A. Henden suspect
that the new variable, which is blue and has an amplitude of at least 9
magnitudes, may well be a WZ-Sge-type cataclysmic variable, and provide
the following CCD magnitudes (unfiltered unless otherwise noted)
reported to the AAVSO:  Aug. 16.937, 15.6 (N. Quinn, Steyning, W.
Sussex, England; prediscovery); 21.916, V = 16.17 (Boyd); 21.917, I =
16.00 (Boyd); 21.935, V = 16.69 (D. Rodriguez, Madrid, Spain);
22.998, V = 16.16 (Boyd); 22.997, I_c = 15.82 (Boyd).


NOTE: These 'Central Bureau Electronic Telegrams' are sometimes
      superseded by text appearing later in the formal IAU Circulars.

                         (C) Copyright 2005 CBAT
2005 August 24                   (CBET 202)               Daniel W. E. Green