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IAUC 7378: 2000P; 2000O; Corrs

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                                                  Circular No. 7378
Central Bureau for Astronomical Telegrams
Mailstop 18, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
IAUSUBS@CFA.HARVARD.EDU or FAX 617-495-7231 (subscriptions)
URL http://cfa-www.harvard.edu/iau/cbat.html  ISSN 0081-0304
Phone 617-495-7244/7440/7444 (for emergency use only)

     F. Colas, Institut de Mecanique Celeste, Paris, and
Observatoire du Pic du Midi, reports the discovery by Robin
Chassagne (Sainte Clotilde, Ile de Reunion) of an apparent
supernova (unfiltered mag 14.1) on a 180-s exposure taken with a
0.30-m telescope (+ ST-7E CCD camera) on Mar. 8.03 UT.  Colas
confirmed the presence of SN 2000P (R = 14.5) with the 1.05-m
telescope at Pic du Midi on Mar. 9.12, noting that the new object
does not appear on the Digital Sky Survey (limiting mag about 21);
he measured the position of SN 2000P as R.A. = 13h07m10s.53, Decl.
= -28o14'02".5 (equinox 2000.0), which is 16" east and 21" south of
the center of NGC 4965.  Chassagne measured position end figures
10s.56, 02".6.  H. Yamaoka, Kyushu University, also reports the
following position end figures measured from the discovery image:
09s.88, 13'59".3.

SUPERNOVA 2000O IN MCG +3-31-61
     S. Jha, P. Challis, and R. Kirshner, Harvard-Smithsonian
Center for Astrophysics, report that a spectrum of SN 2000O (cf.
IAUC 7375) was obtained by Jha on Mar. 8.4 UT with the F. L.
Whipple Observatory 1.5-m telescope (+ FAST spectrograph), showing
it to be a type-Ia supernova after maximum light.  The spectral-
feature age for the supernova is 13 +/- 4 days past maximum (Riess
et al. 1997, A.J. 114, 722).  The Si II (rest 635.5 nm) expansion
velocity is 10 200 km/s, adopting the NED recession velocity of
7042 km/s for the host galaxy.
     E. Cappellaro, S. Benetti, M. Turatto, A. Pastorello, S.
Ortolani, and E. M. Corsini, Padua, report that a spectrum (range
384-684 nm, resolution 1.0 nm) of SN 2000O, obtained on Mar. 9.3 UT
with the Danish 1.54-m telescope (+ DFOSC) at the European Southern
Observatory, is very similar to that of the type-Ia supernova 1994D
(cf. Patat et al. 1996, MNRAS 278, 111) two weeks after maximum
light.  The expansion velocity of about 10 900 km/s, deduced from
the minimum of Si II 635.5-nm is consistent with the estimated
epoch (the recession velocity of 6900 km/s has been measured from
the Na I D insterstellar absorptions, with equivalent width about
0.14 nm).

     On IAUC 7370, 'Comet P/1999 XB_69 (LINEAR)', line 5, for  q =
2000 Feb.  read  T = 2000 Feb.  Also on IAUC 7370, 'Comet P/1999
XN_120 (Catalina)', line 4, for  q = 2000 May  read  T = 2000 May

                      (C) Copyright 2000 CBAT
2000 March 10                  (7378)            Daniel W. E. Green

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