Electronic Telegram No. 2893
Central Bureau for Astronomical Telegrams
INTERNATIONAL ASTRONOMICAL UNION
CBAT Director:  Daniel W. E. Green; Hoffman Lab 209; Harvard University;
 20 Oxford St.; Cambridge, MA  02138; U.S.A.
e-mail:  cbatiau@eps.harvard.edu (alternate cbat@iau.org)
URL http://www.cbat.eps.harvard.edu/index.html
Prepared using the Tamkin Foundation Computer Network


COMET P/2011 V1 (BOATTINI)
     A. Boattini reports his discovery of a comet with fairly strong
condensation and a 4" coma (but no visible tail) on CCD images taken on Nov.
1 with the 1.5-m reflector at Mount Lemmon (discovery observations tabulated
below).  Pre-discovery Mount Lemmon observations from Oct. 22 were then
found at the Minor Planet Center.  After posting on the Minor Planet Center's
NEOCP webpage, T. H. Bressi reports that the object appears diffuse and soft
in comparison to nearby stars, again with no visible tail, on CCD images taken
on Nov. 2.2 UT with the Spacewatch 1.8-m f/2.7 reflector.  H. Sato (Tokyo,
Japan) writes that images taken remotely with a 0.51-m f/4.5 reflector at the
RAS Observatory near Mayhill, NM, U.S.A., on Nov. 2.3 shows a diffuse 10"
coma with a hint of faint tail 20" long toward p.a. 290 degrees.

     2011 UT             R.A. (2000) Decl.       Mag.   Observer
     Nov.  1.30353    2 13 25.64   + 7 46 42.9   19.2   Boattini
           1.31102    2 13 25.21   + 7 46 43.5   19.2     "
           1.31856    2 13 24.74   + 7 46 42.8   20.2     "
           1.32607    2 13 24.34   + 7 46 42.8   19.2     "
           1.39219    2 13 20.46   + 7 46 41.8   19.9     "
           1.40069    2 13 19.99   + 7 46 42.1   19.7     "
           1.40924    2 13 19.52   + 7 46 41.4   19.4     "
           1.41779    2 13 19.09   + 7 46 41.7   19.7     "

The available astrometry, the following preliminary elliptical orbital
elements by G. V. Williams, and an ephemeris appear on MPEC 2011-V13.

     T = 2011 May  11.9809 TT         Peri. = 259.6236
     e = 0.553291                     Node  =  60.0983  2000.0
     q = 1.711004 AU                  Incl. =   7.3907
       a =  3.830238 AU    n = 0.1314817    P =   7.50 years


NOTE: These 'Central Bureau Electronic Telegrams' are sometimes
      superseded by text appearing later in the printed IAU Circulars.

                         (C) Copyright 2011 CBAT
2011 November 3                  (CBET 2893)              Daniel W. E. Green