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IAUC 8339: COMET C/2001 Q4 (NEAT); 2004bm, 2004bp,, 2004bq; C/2003 P3, Q1, Q2, Q3, Q4, Q5,, Q6

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                                                  Circular No. 8339
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 C/2001 Q4 (NEAT)
     C. E. Woodward, University of Minnesota; D. H. Wooden, NASA
Ames Research Center; and D. E. Harker, University of San Diego,
report 8-13-micron spectrophotometry of this comet on May 11.2 UT
using the NASA Ames HIFOGS spectrometer at the Infrared Telescope
Facility 3-m reflector:  "Silicate-feature emission was observed
with a flux-to-continuum ratio of 1.6, including emission from
crystalline silicates at 9.3, 10.0, and 11.2 microns.  The 10-
micron peak flux was 1.6 x 10**-16 W cm**-2 micron**-1, and the
observed N-band magnitude was -0.22 +/- 0.07.  A blackbody fit to
the local continuum yields a color temperature of 310 +/- 4 K."


SUPERNOVAE 2004bm, 2004bp, AND 2004bq
     R. J. Foley, D. S. Wong, M. Ganeshalingam, A. V. Filippenko,
and R. Chornock, University of California, Berkeley, report that
inspection of CCD spectra (range 330-1000 nm), obtained on May 12
UT with the Shane 3-m telescope at Lick Observatory, shows that SN
2004bm (IAUC 8335) is probably of type Ic, roughly 3-4 weeks past
maximum brightness.  SNe 2004bp (IAUC 8335) and 2004bq (IAUC 8336)
are of type Ia, both several weeks past maximum, although the
spectrum of SN 2004bp is rather noisy.


COMETS C/2003 P3, Q1, Q2, Q3, Q4, Q5, AND Q6 (SOHO)
     Further to IAUC 8336, K. Battams reports measurements for
additional near-sun comets found on SOHO images by T. Hoffman
(C/2003 P3, Q1), J. Sachs (C/2003 Q2, Q3, Q5), M. Boschat (C/2003
Q4), and R. Kracht (C/2003 Q6).  All but C/2003 Q1 and Q6 (C2
images only) were observed in the C3 coronagraph; C/2003 Q2 was
also observed in C2 images.  The reduced astrometry by R. Kisala
and orbital elements by B. G. Marsden appear on MPEC 2004-J19;
C/2003 Q1 and Q6 are of the Marsden group, the other comets being
Kreutz sungrazers.

    Comet         2003 UT           R.A. (2000) Decl.
    C/2003 P3     Aug.  5.763       8 44.4   +15 45
    C/2003 Q1          20.913       9 51.8   +13 33
    C/2003 Q2          23.638       9 38.6   + 9 43
    C/2003 Q3          23.846       9 46.0   +10 14
    C/2003 Q4          25.113       9 55.1   +10 11
    C/2003 Q5          26.279       9 47.7   + 8 54
    C/2003 Q6          26.561      10 12.9   +11 42

                      (C) Copyright 2004 CBAT
2004 May 13                    (8339)            Daniel W. E. Green

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