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IAUC 7935: 2002dz; COMET 57P/DU TOIT-NEUJMIN-DELPORTE; C/2002 M3, 2002 M4, 2002 M5, 2002 M6, 2002 M7

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                                                  Circular No. 7935
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)

SUPERNOVA 2002dz IN MCG -01-1-52
     B. Beutler and W. D. Li, University of California at Berkeley,
report the LOTOSS (cf. IAUC 7906) discovery of an apparent
supernova on unfiltered KAIT CCD images taken on July 16.5 (mag
about 18.3) and 17.5 UT (mag about 18.4).  SN 2002dz is located at
R.A. = 0h13m34s.08, Decl. = -5o5'45".7 (equinox 2000.0), which
is 4".6 west and 9".6 south of the nucleus of MCG -01-1-52.  A KAIT
image of the same field on 2001 Nov. 10.2 showed nothing at this
position (limiting mag about 19.0).

     Y. R. Fernandez, D. C. Jewitt, and S. S. Sheppard, University of
Hawaii, report the detection of an additional 18 components (C-T) of comet 57P
(cf. IAUC 7934) in observations taken on July 17.5 and 18.4 UT with the
University of Hawaii 2.2-m reflector. R-band magnitudes range from 20.0 to
23.5.  The components range from well condensed to diffuse with little
central condensation and have comae of diameter 1"-5". Components I, K,
L, N, P, and S show a lack of central condensation. The components are
delayed with respect to T = 2002 July 31.181 TT for component A by the
following times (in days): C, +0.012; D, +0.037; E, +0.053; F, +0.078;
G, +0.156; H, +0.164; I, +0.170; J, +0.180; (B, +0.188); K, +0.194;
L, +0.194; M, +0.224; N, +0.226; O, +0.240; P, +0.271; Q, +0.309;
R, +0.311; S, +0.313; and T, +0.354.

COMETS C/2002 M3, 2002 M4, 2002 M5, 2002 M6, 2002 M7 (SOHO)
     Further to IAUC 7931, D. Hammer reports measurements for
five additional Kreutz sungrazing comets, found on SOHO website C2
images by R. Kracht (C/2002 M3), X. Leprette (C/2002 M4), T.
Hoffman (C/2002 M5), and R. Matson (C/2002 M6, 2002 M7).  The reduced
astrometry and orbital elements by B. G. Marsden appear on MPEC

    Comet         2002 UT           R.A. (2000) Decl.
    C/2002 M3     June 23.746       6 03.5   +21 47
    C/2002 M4          27.064       6 17.3   +21 45
    C/2002 M5          27.996       6 20.4   +21 45
    C/2002 M6          28.854       6 23.8   +21 52
    C/2002 M7          28.881       6 24.0   +21 55

                      (C) Copyright 2002 CBAT
2002 July 20                   (7935)            Daniel W. E. Green

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