[IAUC] CBET 3113: 20120521 : COMET P/2012 K2 = P/2005 K3 (McNAUGHT)

[quai en eps.harvard.edu]

                                                  Electronic Telegram No. 3113
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 en eps.harvard.edu (alternate cbat en iau.org)
URL http://www.cbat.eps.harvard.edu/index.html
Prepared using the Tamkin Foundation Computer Network


COMET P/2012 K2 = P/2005 K3 (McNAUGHT)
     M. Masek (Malargue, Czech Republic; 0.3-m f/10 reflector) has reported
astrometry (tabulated below) of what appears to be a recovery of comet P/2005
K3 (cf. IAUC 8535), with nothing stated about the object's appearance.  The
May 18 observations were reported first, and he identified the May 15 data
later.

     2012 UT             R.A. (2000) Decl.       Mag.   Observer
     May  15.38005   22 39 39.01   -22 50 25.1   17.8   Macek
          15.38861   22 39 40.05   -22 50 20.2   17.9     "
          15.39718   22 39 41.18   -22 50 12.4   17.7     "
          18.43355   22 46 10.29   -22 11 11.9   17.5     "
          18.43793   22 46 10.84   -22 11 09.3   17.5     "
          18.44422   22 46 11.70   -22 11 05.5   17.5     "

G. V. Williams has confirmed the recovery of this comet with Delta(T) = -0.201
day from the prediction by S. Nakano in the *2011/2012 Comet Handbook*.
Orbital elements by Williams linking the two apparitions (cf. MPEC 2012-K37):

                    Epoch = 2012 Sept.30.0 TT
     T = 2012 Sept.12.52304 TT        Peri. =  15.69505
     e = 0.5934966                    Node  = 351.96161 2000.0
     q = 1.4971347 AU                 Incl. =  15.73559
       a =  3.6829574 AU   n = 0.13944695   P =   7.07 years


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      superseded by text appearing later in the printed IAU Circulars.

                         (C) Copyright 2012 CBAT
2012 May 21                      (CBET 3113)              Daniel W. E. Green