Electronic Telegram No. 1828
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


POSSIBLE SUPERNOVAE K0905-4, K0905-5, K0905-6, K0905-7, K0905-8, K0905-9
     Further to CBET 1825, A. J. Drake, S. G. Djorgovski, A. Mahabal, R.
Williams and M. J. Graham, California Institute of Technology; M. Catelan,
Pontificia Universidad Catolica de Chile; E. C. Beshore, S. M. Larson, R.
Hill, A. Gibbs, A. Boattini, R. Kowalski, Lunar and Planetary Laboratory,
University of Arizona; and E. Christensen, Gemini Observatory, report the
CRTS discovery of possible supernovae in unfiltered Catalina Sky Survey (CSS)
images:

 PSN       2009 UT        R.A. (2000.0) Decl.       Mag.      Offset
 K0905-4   Apr. 24.34   12 43 52.36  +24 27 49.2    19.4    15".3 E, 7".9 S
 K0905-5   Apr. 27.39   14 39 38.53  - 7 18 42.6    18.6    0".3 W, 0".4 N
 K0905-6   May  18.19   12 34 59.13  +24 43 52.1    19.2    0".2 E, 1".4 N
 K0905-7   May  18.21   12 30 48.77  +28 57 01.4    19.5    13".9 W, 4".4 N
 K0905-8   May  18.21   12 41 50.08  +30 01 41.8    19.6    0".2 W, 0".9 N
 K0905-9   May  18.27   12 17 30.34  +41 13 29.1    19.7    9".4 E, 9".6 S

The objects were followed with the Palomar 1.5-m telescope using Gunn filters.
Further CSS magnitudes for K0905-4:  Mar. 3.40, [20.5; 28.29, 20.2; May 17.28,
19.7.  Further magnitudes for K0905-5:  Jan. 31.54, [20.4 (CSS); Apr. 17.43,
18.6 (CSS); 28.19, g = 18.3, r = 18.5, i = 18.8; May 13.20, g = 19.3, r =
19.0, i = 19.4.  Further magnitudes for PSN K0905-6:  Apr. 24.34 UT, [20.5
(CSS); May 24.25, g = 19.6, r = 19.3, i = 19.7.  Further magnitudes for
K0905-7:  Apr. 30.35, [20.5 (CSS); May 24.25, g = 19.9, r = 19.8, i = 20.0.
Further magnitudes for K0905-8:  Apr. 2.23, [20.5 (CSS); May 24.24, g = 19.5,
r = 19.4, i = 19.8.  Further magnitudes for K0905-9:  Apr. 24.45, [20.9 (CSS);
25.21, 20.9 (CSS); May 24.23, g = 19.8, r = 19.8, i = 19.9.


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      superseded by text appearing later in the printed IAU Circulars.

                         (C) Copyright 2009 CBAT
2009 June 3                      (CBET 1828)              Daniel W. E. Green