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IAUC 9017: P/2009 B3; P/2009 B4

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IAUC number 

                                                  Circular No. 9017
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://www.cfa.harvard.edu/iau/cbat.html  ISSN 0081-0304
Phone 617-495-7440/7244/7444 (for emergency use only)


COMET P/2009 B3 (VAN NESS)
     G. Hug, Scranton, KS, U.S.A., reports his recovery of comet
P/2005 R2 (cf. IAUC 8597) on images obtained with the 0.56-m
reflector at his Sandlot Observatory.  A very faint, straight,
narrow tail was observed extending at least 5'-6' in p.a. 300 deg.
The indicated correction to the prediction on MPC 62880 is Delta(T)
= -0.06 day.

     2009 UT             R.A. (2000) Decl.       Mag.   Observer
     Jan. 31.36200   10 57 13.96   + 0 44 12.1   20.7   Hug

The above observation and three others, together with the following
linked orbital elements and an ephemeris, appear on MPEC 2009-C03.

                    Epoch = 2011 June  8.0 TT
     T = 2011 June 16.2308 TT         Peri. =   3.3321
     e = 0.379597                     Node  = 312.6719  2000.0
     q = 2.122533 AU                  Incl. =  10.2396
       a =  3.421219 AU    n = 0.1557517    P =   6.33 years


COMET P/2009 B4 (LINEAR)
     Hug also reports his recovery of P/2002 CW_134 (cf. IAUC 7858)
in images taken at 25 deg altitude; the comet did not appear
different from stellar images in the same exposures.  The indicated
correction to prediction on MPC 56802 is Delta(T) = -0.32 day.

     2009 UT             R.A. (2000) Decl.       Mag.   Observer
     Jan. 31.48615   14 30 50.15   -22 00 01.1   19.6   Hug
          31.50481   14 30 51.92   -22 00 23.0   20.0    "
     Feb.  1.43053   14 32 21.53   -22 17 31.7   19.3    "
           1.45242   14 32 23.47   -22 17 56.4   19.5    "
           1.46701   14 32 24.91   -22 18 13.5   19.6    "

The following linked orbital elements and an ephemeris appear on
MPEC 2009-C04.

                    Epoch = 2009 Jan.  9.0 TT
     T = 2009 Jan.  5.6142 TT         Peri. = 190.2682
     e = 0.488719                     Node  = 348.2590  2000.0
     q = 1.843732 AU                  Incl. =  15.2133
       a =  3.606102 AU    n = 0.1439286    P =   6.85 years

                      (C) Copyright 2009 CBAT
2009 February 1                (9017)            Daniel W. E. Green

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