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IAUC 8726: P/2006 M3; 2006di

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                                                  Circular No. 8726
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 P/2006 M3 (BARNARD)
     An apparently asteroidal object discovered by LINEAR
(discovery observation tabulated below) has been found to be
cometary following posting on the 'NEO Confirmation Page'.  L.
Buzzi (Varese, Italy; 0.60-m reflector) reports that images taken
in good seeing during June 23.97-23.99 UT showed a 6" circular coma
with a strong central condensation.  Images from R. Salvo (Los
Molinos, Uruguay) on June 24.2 and from J. Broughton (Reedy Creek,
Queensland) on June 24.6 also suggest that the object is a comet.
From a preliminary orbit computation, the undersigned suggested
that the comet is a return of P/1889 M1 = 1889 III = 1889c
(Barnard), for which A. Berberich (1889, A.N. 123, 77) was the
first to compute an orbit of intermediate period (about 128 years).
The orbital elements below are by B. G. Marsden, from observations
1889-2006 (mean residual 0".9), with astrometry also given on MPECs
2006-M38 and 2006-M42.

     2006 UT             R.A. (2000) Decl.       Mag.
     June 23.25870   17 43 38.68   -27 26 53.5   17.1

                    Epoch = 1889 June  7.0 TT
     T = 1889 June 21.2418 TT         Peri. =  60.1479
     e = 0.953988                     Node  = 272.5450  2000.0
     q = 1.102918 AU                  Incl. =  31.2189
       a = 23.970332 AU    n = 0.0083983    P = 117.36 years

                    Epoch = 2006 Aug. 13.0 TT
     T = 2006 Aug. 28.6903 TT         Peri. =  60.4661
     e = 0.954400                     Node  = 272.0666  2000.0
     q = 1.107142 AU                  Incl. =  31.2161
       a = 24.279424 AU    n = 0.0082385    P = 119.64 years


SUPERNOVA 2006di IN NGC 439
     Further to IAUC 8723, L. A. G. Monard reports the discovery of
an apparent supernova (mag about 16.1) on unfiltered CCD images
taken on June 24.154 UT.  The new object is located at R.A. =
1h13m46s.85, Decl. = -31o44'30".2 (equinox 2000.0), which is 6"
west and 19" north of the nucleus of NGC 439.  Nothing is visible
at this location on the Digitized Sky Survey (limiting red mag
20.5).  Additional magnitudes from Monard for 2006di:  June 1.137,
[18.5; 25.134, 16.2; 26.137, 16.1.

                      (C) Copyright 2006 CBAT
2006 June 26                   (8726)            Daniel W. E. Green

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