Electronic Telegram No. 1442
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)
URL http://www.cfa.harvard.edu/iau/cbat.html


VARIABLE STAR IN AQUILA
     P. C. Sherrod, Petit Jean Mountain, AR, U.S.A., reported the discovery
of a possible nova (red mag 12.8) on CCD images obtained with a 0.51-m f/4
Schmidt-Cassegrain reflector on July 16.31 UT, the position given as R.A. =
19h12m13s.36 +/- 0s.01, Decl. = +10o31'29".1 +/- 0".1 (equinox 2000.0).  This
position is close to that of a variable reported by Wozniak et al. (2004,
A.J. 128, 2965; position end figures 13s.34, 28".8; peak red magnitude 13.0),
who list this as a Mira-type variable in their online catalogue, though they
give the amplitude as only 1.8 magnitudes.  Following posting on the Central
Bureau's unconfirmed-objects webpage, several other observers contributed
reports.  S. Nakano, Sumoto, Japan, writes that K. Kadota, Ageo, Japan,
measured mag 11.9 and position end figures 13s.45, 29".5 for the variable
from his unfiltered CCD images taken on July 17.689 with a 0.25-m f/5
reflector.  C. Jacques and E. Pimentel, Belo Horizonte, Brazil, measure mag
12.2 and position end figures 13s.50, 29".4 from a CCD frame taken on July
18.11 with a 30.5-cm f/3.3 telescope.  V. Gonano, L. Donato, E. Guido, and G.
Sostero, Remanzacco, Italy, report that CCD images obtained on July 16 with a
0.45-m f/4.4 reflector show the variable at mag 12.7 and position end figures
13s.54, 29".2; nothing is visible to limiting mag around 20 at this position
on Palomar Sky Survey (POSS) plates from 1990 (blue) and 1987 (red), while a
POSS plate from 1995 does show the variable at approximately the same
magnitude.  Gonano et al. have posted their image at the following website
URL:  http://tinyurl.com/55ojo5.


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      superseded by text appearing later in the printed IAU Circulars.

                         (C) Copyright 2008 CBAT
2008 July 18                     (CBET 1442)              Daniel W. E. Green