[IAUC] CBET 1872: 20090712 : SUPERNOVA 2009hi IN NGC 7647
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Dom Jul 12 01:40:03 ART 2009
Electronic Telegram No. 1872
Central Bureau for Astronomical Telegrams
INTERNATIONAL ASTRONOMICAL UNION
M.S. 18, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
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SUPERNOVA 2009hi IN NGC 7647
S. Nakano, Sumoto, Japan, reports the discovery by K. Itagaki (Teppo-cho,
Yamagata, Japan) of an apparent supernova (mag 18.0) on 15-s unfiltered CCD
frames (limiting mag 20.0) taken on July 10.722 UT using a 0.60-m f/5.7
reflector; the new object is located at R.A. = 23h23m56s.24 +/- 0s.01, Decl.
= +16o46'30".0 +/- 0".4 (equinox 2000.0; average of exposures from two
nights), which is 17" west and 8" S of the center of NGC 7647. Further to
CBET 1859, W. Li, S. B. Cenko, and A. V. Filippenko report the independent
LOSS discovery of 2009hi on unfiltered KAIT images, providing position end
figures 56s.26, 29".8. Additional magnitudes for 2009hi: 2006 Aug. 3, [20.0
(Itagaki); 2008 Dec. 1.13, [19.2 (KAIT); 2009 July 5.724, 18.7 (Itagaki;
pre-discovery); July 10.49, 17.6 (KAIT); 11.47, 17.7 (KAIT).
NOTE: These 'Central Bureau Electronic Telegrams' are sometimes
superseded by text appearing later in the printed IAU Circulars.
(C) Copyright 2009 CBAT
2009 July 12 (CBET 1872) Daniel W. E. Green
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