IAU Central Bureau for Astronomical Telegrams

Central Bureau for Astronomical Telegrams -- Image credits

IAUC 8426: COMET P/2004 V1 (SKIFF); C/2004 S2, C/2004 S3, C/2004 S4; 2004fe

The following International Astronomical Union Circular may be linked-to from your own Web pages, but must not otherwise be redistributed (see these notes on the conditions under which circulars are made available on our WWW site).

Read IAUC 8425  SEARCH Read IAUC 8427

View IAUC 8426 in .dvi or .ps format.
IAUC number

                                                  Circular No. 8426
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)

     B. Skiff, Lowell Observatory, reports his discovery of a comet
on LONEOS images obtained on Nov. 4.1 UT (discovery observation
given below) with the 0.59-m Schmidt telescope, the object showing
a moderately condensed coma of diameter 25" and a weak tail 50"
long in p.a. 75 deg.  Following posting on the "NEO Confirmation
Page", B. L. Stevens (Las Cruces, NM, 0.3-m Schmidt-Cassegrain
telescope) reports that his CCD images taken on Nov. 4.2 show a 30"
tail in p.a. 55 deg.

     2004 UT             R.A. (2000) Decl.       Mag.
     Nov.  4.06749   21 08 06.21   - 0 34 05.5   17.9

The available astrometry (including prediscovery LINEAR
observations from Oct. 7 and 18), the following preliminary orbital
elements, and an ephemeris appear on MPEC 2004-V16.

     T = 2004 Dec.  8.861 TT          Peri. = 144.765
     e = 0.69415                      Node  = 242.236   2000.0
     q = 1.41841 AU                   Incl. =  11.467
       a =  4.63754 AU     n = 0.098690     P =   9.99 years

COMETS C/2004 S2, C/2004 S3, C/2004 S4 (SOHO)
     Additional Kreutz sungrazers (continuation to IAUC 8419 and
8423; YT = Y.-s. Tsai):

 Comet        2004 UT      R.A.(2000)Decl.   Inst.  F    MPEC
 C/2004 S2    Sept.20.356  11 27.1  - 0 07   C3     KB  2004-V05
 C/2004 S3         22.959  11 37.5  - 1 08   C3/2   YT  2004-V05
 C/2004 S4         28.529  12 03.0  - 3 16   C3/2   HS  2004-V05

     M. Modjaz, P. Challis, and R. Kirshner, Harvard-Smithsonian
Center for Astrophysics; and T. Matheson, National Optical
Astronomy Observatory, report that a spectrogram (range 390-900 nm)
of SN 2004fe (cf. IAUC 8425), obtained by P. Challis, A. Garg, and
C. Stubbs on Nov. 3.02 UT with the Magellan Clay 6.5-m Telescope (+
LDSS-2), shows it to be a supernova of type Ic.  The spectrum is
similar to spectra of SN 1994I (Filippenko et al. 1995, Ap.J. 450,
L11) taken a few days before maximum.

                      (C) Copyright 2004 CBAT
2004 November 4                (8426)            Daniel W. E. Green

Read IAUC 8425  SEARCH Read IAUC 8427

View IAUC 8426 in .dvi or .ps format.

Our Web policy. Index to the CBAT/MPC/ICQ pages.

Valid HTML 4.01!