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

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                                                  Circular No. 7961
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)


COMET P/2002 Q4 (BREWINGTON)
     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.


SUPERNOVA 2002eo IN NGC 710
     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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