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IAUC 8431: 2004fw; 2004fx; C/2004 Q2

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IAUC number 

                                                  Circular No. 8431
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)


SUPERNOVA 2004fw IN UGC 4633
     Further to IAUC 8417, T. Puckett and M. Peoples report the
discovery of an apparent supernova (mag 18.3) on an unfiltered CCD
frame taken with the 0.60-m automated supernova patrol telescope on
Nov. 6.36 UT -- and confirmed at mag 18.0 on frames taken on Nov.
7.30.  The new object is located at R.A. = 8h52m14s.55, Decl. =
+52o53'30".4 (equinox 2000.0), which is 2".0 east and 5".8 north of
the center of UGC 4633.  SN 2004fw is not present images taken by
Puckett on 2002 Nov. 14 and 2003 Oct. 11 (limiting mag about 20.0).


SUPERNOVA 2004fx IN MCG -02-14-3
     Further to IAUC 8425, S. Park and W. Li report the LOSS
discovery of an apparent supernova (mag about 16.9) on an
unfiltered KAIT image taken on Nov. 7.44 UT.  The new object was
confirmed on earlier images taken on Oct. 28.43 (mag about 17.2),
Nov. 1.44 (mag about 17.1), and Nov. 5.43 (mag about 16.9).  SN
2004fx is located at R.A. = 5h11m11s.67, Decl. = -9o23'31".6
(equinox 2000.0), which is 56".6 east and 11".2 south of the
nucleus of MCG -02-14-3.  A  KAIT image taken on Oct. 22.42
(limiting mag about 19.0) showed nothing at this position.


COMET C/2004 Q2 (MACHHOLZ)
     D. H. Wooden, NASA Ames Research Center; D. E. Harker,
University of California, San Diego; C. E. Woodward and M. S.
Kelley, University of Minnesota; S. J. Bus and A. Tokunaga,
University of Hawaii; C. Magri, University of Maine; R. P. Binzel,
Massachusetts Institute of Technology; and G. Lo Curto and E.
Wenderoth, European Southern Observatory (ESO), report that K-, N-,
and Q-band photometry of comet C/2004 Q2 was obtained on Oct. 18.64
UT using the NASA Infrared Telescope Facility (+ SpeX guider
camera).  The coma was extended (FWHM = 5", FWZI = 12"); aperture
photometry in a 3"-diameter aperture yields K [2.2 microns] = 8.49
+/- 0.1.  The comet was also observed on Oct. 23.31 with the ESO
3.6-m telescope (+ TIMMI2) at La Silla, yielding the folowing flux
densities in a 3"-diameter aperture:  N_1 (8.6 microns), 0.53 +/-
0.04 Jy; Q_1 (17.75 microns), 1.50 +/- 0.14 Jy.  The comet was also
extended in the N_1 band (FWHM = 3", FWZI = 5").  Spitzer InfraRed
Spectrograph observations of the comet are planned for Nov. 13.

                      (C) Copyright 2004 CBAT
2004 November 7                (8431)            Daniel W. E. Green

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