Circular No. 8476

Central Bureau for Astronomical Telegrams INTERNATIONAL ASTRONOMICAL UNION Mailstop 18, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A. IAUSUBS@CFA.HARVARD.EDU or FAX 617-495-7231 (subscriptions) BMARSDEN@CFA.HARVARD.EDU or DGREEN@CFA.HARVARD.EDU (science) URL http://cfa-www.harvard.edu/iau/cbat.html Phone 617-495-7244/7440/7444 (for emergency use only)

SUPERNOVAE 2005X, 2005Y, 2005Z, 2005aa

Further to IAUC 8473, H. G. Khandrika, S. Park, J. Graham, and
W. Li report the LOSS/KAIT discovery of four apparent supernovae on
unfiltered KAIT images.  SN 2005Z was discovered independently by O.
Trondal and M. Schwartz (cf. IAUC 8468) on unfiltered Tenagra II
0.81-m telescope images, and their data are tabulated below.

SN      2005 UT        R.A.  (2000.0)  Decl.    Mag.     Offset
2005X   Jan. 24.44   12 24 00.75  + 7 46 38.9   17.5   1".6 E, 1".8 N
2005Y   Jan. 31.12    1 37 37.29  + 0 02 29.8   18.8   2".6 E, 5".1 N
2005Z   Jan. 31.37   10 45 09.18  +22 04 38.3   16.7   5".6 W, 4".3 S
2005aa  Feb.  1.38    9 08 04.21  +27 14 59.4   18.8   10".8 W, 0".6 S

Additional approximate unfiltered CCD magnitudes, from LOSS/KAIT
unless noted otherwise:  SN 2005X (in a galaxy that is in turn 5".6
east and 27".7 south of NGC 4353), 2004 June 10.20 UT, [19.0; Dec.
1.43, [17.5; 2005 Feb. 2.45, 17.7.  SN 2005Y in UGC 1159, 2004 Dec.
12.13, [20.0; 2005 Jan. 22.14, [19.0; Feb. 2.23, 18.5.  SN 2005Z in
NGC 3363, Jan. 15.45, [19.0 (T. Puckett and P. Wiggins); 20.45,
[19.0; Feb. 1.46, 17.1; 2.36, 17.3.  SN 2005aa in MCG +05-22-8, Jan.
22.39, [19.5; Feb. 2.35, 18.8.  Li provides position end figures
09s.07, 37".3 for SN 2005Z.

Host galaxy info: vel = 5766 km/s, 1.3 x 0.8, 14.34, S?

SN type info: II

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