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IAUC 7901: 2002cv; C/2002 C1

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                                                  Circular No. 7901
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)
CBAT@CFA.HARVARD.EDU (science)
URL http://cfa-www.harvard.edu/iau/cbat.html  ISSN 0081-0304
Phone 617-495-7440/7244/7444 (for emergency use only)


SUPERNOVA 2002cv IN NGC 3190
     V. Larionov and A. Arkharov, Pulkovo; A. Caratti o Garatti and
A. Di Paola, Rome; and M. Dolci, Teramo, report the discovery of an
apparent supernova (J = 15.7, H = 15.3, K = 14.4) on J, H, and K
images taken with the 1.1-m AZT-24 telescope at Campo Imperatore on
May 13.7-13.9 UT, while monitoring SN 2002bo (cf. IAUC 7847).  The
new object was confirmed at I = 17.7 by the same group (plus E. Di
Carlo, A. Pietrinferni, S. Gagliardi, E. Brocato, A. Tornambe, and
F. Bernardi) on two I-band images obtained at the 0.72-m Teramo TNT
telescope on May 14.  SN 2002cv is located at R.A. approximately
10h18m03s.68, Decl. approximately +21o50'06".2 (equinox 2000.0),
which is 18" west and 10" north of the nucleus of NGC 3190; the new
object appears to be embedded in a region of high absorption, as
30- and 40-min V-band images show no star there (limiting mag 20).
Additional photometry:  Mar. 28, I [17: (TNT image); Apr. 29, May
5, and 6, J [18: (AZT-24 images); May 9, J > 18 (very faint star
visible).
     T. Matheson, K. Stanek, S. Jha, P. Challis, and R. Kirshner,
Harvard-Smithsonian Center for Astrophysics, report that images of
SN 2002cv, obtained by Stanek on May 15.2 UT with the MMT 6.5-m
telescope (+ Minicam), confirm the presence of the new object (at R
about 19.0, I about 16.6; calibration provided by W. Li) at
position end figures 03s.7, 06".1.
     M. Turatto, Osservatorio Astronomico di Padova, writes that S.
Desidera, S. Benetti, G. Altavilla, A. Pastorello, M. Riello, E.
Cappellaro, and he obtained a spectrogram (range 550-1000 nm,
resolution 5 nm) of SN 2002cv with the 1.8-m Mt. Ekar telescope (+
AFOSC) on May 15.9 UT, showing a very red spectrum with no signal
blueward of 600 nm.  In addition to telluric absorptions, no
feature is clearly visible; this is consitent with a very reddened
spectrum of a core-collapse supernova soon after burst.


COMET C/2002 C1 (IKEYA-ZHANG)
     Ephemeris extension to IAUC 7876 (elements MPC 45335):

2002 TT     R. A. (2000) Decl.   Delta     r    Elong. Phase    m1
May   6    17 59.68   +53 10.2   0.416   1.153   99.5   59.7    4.6
     16    16 37.19   +38 31.6   0.479   1.319  120.4   41.4    5.4
     26    15 57.47   +25 30.4   0.591   1.482  133.3   29.8    6.2
June  5    15 37.05   +15 45.2   0.741   1.640  137.7   24.6    7.1
     15    15 26.71   + 8 38.3   0.922   1.794  135.7   23.3    7.9
     25    15 22.47   + 3 20.5   1.125   1.945  130.4   23.5    8.6

                      (C) Copyright 2002 CBAT
2002 May 16                    (7901)            Daniel W. E. Green

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