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IAUC 7723: P/2001 R6; 2001el

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                                                  Circular No. 7723
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. A. Skiff, Lowell Observatory, reports his discovery of a
comet on CCD images taken by him with the LONEOS telescope on Sept.
25.  The object shows a moderately condensed 15" coma and a broad
tail about 25" toward the west-northwest.  T. B. Spahr identified
this comet with an object observed on two nights (Sept. 11 and 16,
previously linked; m_2 = 19.4-20.0) and reported as asteroidal in
appearance by LINEAR; subsequently LINEAR observations from Aug. 19
were also identified.  J. G. Ries reports that CCD images obtained
with the 0.76-m reflector at McDonald Observatory on Sept. 27.3 UT
also show this object to be diffuse.

     2001 UT             R.A. (2000) Decl.        m1    Observer
     Sept.11.41907    1 23 53.51   -22 48 39.6          LINEAR
          25.31700    1 17 05.72   -23 21 11.6   17.0   Skiff

All the available astrometry, together with the following orbital
elements by B. G. Marsden, appear on MPEC 2001-S55:

     T = 2001 Oct. 26.6400 TT         Peri. = 305.9837
     e = 0.485638                     Node  =  70.3559  2000.0
     q = 2.115198 AU                  Incl. =  17.3381
       a =  4.112277 AU    n = 0.1181900    P =   8.339 years

SUPERNOVA 2001el IN NGC 1448
     J. Sollerman, B. Leibundgut, European Southern Observatory;
and P. Lundqvist, Stockholm Observatory, report:  "Inspection of a
CCD spectrum (range 330-1050 nm) of SN 2001el (cf. IAUC 7720),
obtained on Sept. 21 UT with the Very Large Telescope UT2 (+ UVES
spectrograph) at Paranal, shows it to be a type-Ia supernova well
before maximum.  The characteristic Si II absorption at 612 nm
appears flat-bottomed.  Interstellar absorption lines of Ca H and K,
and the lines of Na I D (equivalent widths 0.037, 0.031 nm) are
observed at the redshift (1162 km/s) of NGC 1448."
     Additional visual magnitude estimates by L. Monard, Pretoria,
S. Africa (cf. IAUC 7721):  Sept. 22.091 UT, 13.3; 22.870, 13.2;
23.945, 12.8; 24.121, 12.9; 24.992, 12.7.

                      (C) Copyright 2001 CBAT
2001 September 27              (7723)            Daniel W. E. Green

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