SN 2006st

Electronic Telegram No. 778

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

SUPERNOVA 2006st IN NGC 4017

Further to IAUC 8782, D. Winslow and W. Li report the LOSS discovery
on unfiltered KAIT images of an apparent supernova located at R.A. =
11h58m40s.97, Decl. = +27o27'37".6 (equinox 2000.0), which is 63" west
and 29" north of the center of NGC 4017.  Available KAIT magnitudes for
2006st:  May 30.23 UT, [19.0; Dec. 18.57, 18.3; 19.53, 18.4.
Further to IAUC 8782, J. M. Silverman, M. Ganeshalingam, M. Moore,
and A. V. Filippenko, University of California, Berkeley, report that
inspection of CCD spectra (range 330-1050 nm), obtained on Dec. 20 UT
with the Lick 3-m telescope (+ Kast), shows that 2006st is a type-II
supernova.  Removing the recession velocity of 4900 km/s, determined
from the H-beta emission line, the absorption minima of the P-Cyg
profiles of H-alpha and H-beta are measured to be blueshifted by about
3700 km/s and 2800 km/s, respectively.

Host galaxy info: vel = 3454 km/s; 1.8 x 1.4; 13.0; SABbc

SN type info: II


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