Circular No. 8680

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 2006R-2006T, 2006V, 2006X, 2006al, 2006am, 2006an

Two new supernovae have been reported from unfiltered CCD
images:  2006am in NGC 5630 by E. Lee and W. Li (LOSS/KAIT; cf.
IAUC 8669), and 2006an by R. Quimby and F. Castro, University of
Texas (0.45-m ROTSE-IIIb telescope; cf. IAUC 8622).

SN      2006 UT      R.A.  (2000.0)  Decl.    Mag.     Offset
2006am  Feb. 22.53  14 27 37.24  +41 15 35.4  18.5  7".5 E, 6".8 N
2006an  Feb. 21.27  12 14 38.68  +12 13 46.9  17.9  1" W, 1" S

Additional KAIT magnitudes for 2006am:  2005 July 4.21 UT, [19.5;
Feb. 23.55, 18.5; 24.54, 18.5.  SN 2005dp also appeared in NGC 5630.
A co-addition of images taken between 2004 Dec. 15 and 2005 June 8
shows nothing at the location of 2006an, with limiting mag about
19.0; 2006an was also detected on 2006 Feb. 26.27 at mag about 17.7.
The positional uncertainty for 2006an above is estimated as +/-
0".6; the specified offset is with respect to a galaxy that is not
significantly detected in the ROTSE-IIIb data, but it appears at
mag r = 21.9 in SDSS data with position end figures 38s.73, 47".7.
SN 2006an is a type-Ia supernova (cf. CBET 413). 

Host galaxy info: vel = 2655 km/s, 2.05 x 0.65, 13.6, Sdm:

SN type info: IIn

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