[IAUC] IAUC 9162: COMET P/2010 P5 (NEAT); C/2009 W8, C/2009 W12-W16,, C/2009 X2 [25139-2011/04-R1]

[quai en cfa.harvard.edu]

                                                  Circular No. 9162
Central Bureau for Astronomical Telegrams
INTERNATIONAL ASTRONOMICAL UNION
CBAT Director:  D. W. E. Green, Room 209; Department of
 Earth and Planetary Sciences; Harvard University;
 20 Oxford St.; Cambridge, MA  02138; U.S.A.
CBAT en IAU.ORG; CBATIAU en EPS.HARVARD.EDU
URL http://www.cfa.harvard.edu/iau/cbat.html  ISSN 0081-0304


COMET P/2010 P5 (NEAT)
     E. Guido, Castellammare di Stabia, Italy, reports the recovery
of comet P/2003 S2 (cf. IAUCs 8209, 8224) with a faint 15" tail in
p.a. 356 deg on CCD images obtained by G. Sostero and himself with
a 0.25-m f/3.4 reflector located at the RAS Observatory near
Mayhill, NM, U.S.A. (astrometry tabulated below).

     2010 UT             R.A. (2000) Decl.      Mag.
     Aug. 15.31331   21 13 19.06   -25 30 51.5  18.9
          15.32972   21 13 18.21   -25 30 56.6  19.0
          15.34611   21 13 17.61   -25 31 03.0  19.1
          17.33718   21 11 50.45   -25 40 15.4  18.9
          17.36167   21 11 49.37   -25 40 21.6  19.0

The indicated correction to the prediction by B. G. Marsden on MPC
62880 is Delta(T) = -0.33 day.  The following linked orbital
elements by G. V. Williams and an ephemeris appear on MPEC 2010-Q08.

                    Epoch = 2011 Mar. 20.0 TT
     T = 2011 Mar.  3.1865 TT         Peri. = 283.8898
     e = 0.359900                     Node  =  87.7034  2000.0
     q = 2.456014 AU                  Incl. =   7.6345
       a =  3.836920 AU    n = 0.1311384    P =   7.52 years


COMETS C/2009 W8, C/2009 W12-W16, AND C/2009 X2 (SOHO)
     Further to IAUC 9160, additional Kreutz sungrazers have been
found on SOHO website images.  C/2009 W12 (peak mag about 7.5-8)
and C/2009 W16 (mag about 8) were very diffuse, while C/2009 W13
(mag about 7.5-8), C/2009 W14 (mag about 7), and C/2009 W15 (mag
about 7-7.5) were slightly diffuse.  C/2009 X2 (mag about 7.5)
showed a "slight tail", according to K. Battams.  C/2009 W8 (cf.
IAUC 9160) was barely visible in C3 images.

 Comet        2009 UT        R.A.(2000)Decl.   Inst.  F    MPEC
 C/2009 W12   Nov. 28.104    16 15.0  -23 01    C2    ZX   2010-L92
 C/2009 W13        28.314    16 18.3  -23 16    C2    JR   2010-L92
 C/2009 W14        28.463    16 18.3  -23 14    C2    JR   2010-L92
 C/2009 W15        29.396    16 20.9  -23 17    C2    MU   2010-L92
 C/2009 W16        29.854    16 22.7  -23 15    C2    BZ   2010-L92
 C/2009 X2    Dec.  1.679    16 28.3  -24 50    C3/2  BZ   2010-L92

                      (C) Copyright 2010 CBAT
2010 August 17                 (9162)            Daniel W. E. Green