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IAUC 7961: P/2002 Q4; 2002er; 2002eo

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                                                  Circular No. 7961
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 617-495-7440/7244/7444 (for emergency use only)

     F. Artigue, H. Cucurullo, and G. Trancredi, Observatorio
Astronomico Los Molinos, Montevideo, report the recovery of comet
P/1992 Q1 (= 1992p = 1992 XIV), with a diffuse coma of diameter 20"
and central condensation, on CCD images taken with a 0.46-m
telescope in the course of the 'BUSCA' project.  Further astrometry
and orbital elements (from observations 1992 Aug. 28-2002 Aug. 28)
appear on MPEC 2002-Q41; the correction to the prediction on MPC
40670 is Delta(T) = +0.52 day.

     2002 UT             R.A. (2000) Decl.        m1
     Aug. 26.97571   20 07 01.59   -36 10 07.1
          27.98148   20 06 06.51   -36 02 34.2   16.8

SUPERNOVA 2002er IN UGC 10743
     S. J. Smartt, Institute of Astronomy, University of Cambridge;
F. Patat, European Southern Observatory; and P. Meikle, Imperial
College, London, on behalf of the European Research and Training
Network on the Physics of Type-Ia Supernovae, report that a 1800-s
spectrum (range 360-720 nm; resolution 0.46 nm) of SN 2002er (cf.
IAUC 7959), obtained at the Isaac Newton Telescope (+ IDS
spectrograph) on La Palma by S. Araujo on Aug. 26.93 UT, shows it
to be a type-Ia supernova.  A comparison with the spectra of SN
1994D (Patat et al. 1996, MNRAS 278, 111), and in particular the
relative strengths of the features of Fe II/III and Si II, suggests
an early epoch of roughly 10 days prior to peak brightness.  The
spectrum is significantly redder than that of SN 1994D, indicating
host-galaxy extinction.  The interstellar Na I D lines from the
host galaxy at +2508 km/s are seen as an unresolved blend in the
spectrum and have equivalent widths of 0.11 +/- 0.01 nm for the
Milky Way and 0.12 +/- 0.01 nm for UGC 10743.  The Galactic
extinction of Schlegel et al. (1998, Ap.J. 500, 525) suggests a
reddening of E(B-V) = 0.16 towards UGC 10743.  Since the Na I
lines of the host-galaxy absoprtion are similar to the Milky Way
absorption, the likely total reddening is of the order E(B-V)
about 0.3.

     M. Armstrong, Rolvenden, Kent, England, reports the following
magnitudes for SN 2002eo (cf. IAUC 7958) from unfiltered CCD frames
taken in the course of his supernova search:  2000 Sept. 25 UT,
[19.5; 2002 Aug. 14.077, [19.5; 18.023, 18.5: (faint trace; poor
image); 23.089, 18.2:.

                      (C) Copyright 2002 CBAT
2002 August 28                 (7961)            Daniel W. E. Green

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