[IAUC] IAUC 9018: COMET P/2009 B5 (NEAT); C/2008 T6-T10 [25139-2009/08-R1]

[IAUC mailing list]

                                                  Circular No. 9018
Central Bureau for Astronomical Telegrams
INTERNATIONAL ASTRONOMICAL UNION
Mailstop 18, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
IAUSUBS en CFA.HARVARD.EDU or FAX 617-495-7231 (subscriptions)
CBAT en 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 B5 (NEAT)
     G. Hug, Scranton, KS, U.S.A., reports his recovery of comet
P/2002 O8 (cf. IAUC 7949) on images obtained with the 0.56-m
reflector at his Sandlot Observatory.  The indicated correction to
the prediction on MPC 59599 is Delta(T) = -0.34 day.

     2009 UT             R.A. (2000) Decl.       Mag.   Observer
     Jan. 22.49485   15 17 07.22   - 9 52 16.5   20.3   Hug
          22.51117   15 17 08.08   - 9 52 18.0   19.7     "
     Feb.  2.48785   15 25 27.25   -10 19 33.3   19.9     "
           2.51010   15 25 28.13   -10 19 35.9   20.2     "

The following linked orbital elements by B. G. Marsden and an
ephemeris appear on MPEC 2009-C19.

                    Epoch = 2010 June 13.0 TT
     T = 2010 June  8.0390 TT         Peri. = 222.4526
     e = 0.201114                     Node  =  75.4410  2000.0
     q = 3.213378 AU                  Incl. =  12.7900
       a =  4.022322 AU    n = 0.1221768    P =   8.07 years


COMETS C/2008 T6-T10 (SOHO)
     Further to IAUC 9014, additional near-sun presumed comets have
been found on SOHO website images; all were Kreutz sungrazers
except for C/2008 T6 (Meyer group) and C/2008 T7 (no known group).
Those objects visible in C3 images appeared stellar therein.
C/2008 T6 was small and faded quickly (peak mag about 7).  C/2008
T7 was tiny (mag about 7.5-8).  C/2008 T8 peaked at mag about 6.5-
7 in C3 images, but was quite diffuse with a short, diffuse tail in
C2 images.  C/2008 T9 and C/2008 T10 were of mag 7.5-8 in C3 images;
the former was diffuse and very faint in C2 images, while the
latter was very diffuse and slightly elongated in C2 images.

 Comet       2008 UT       R.A.(2000)Decl.   Inst.  F    MPEC
 C/2008 T6   Oct.  2.379   12 31.1  - 2 17   C2     BZ   2009-A59
 C/2008 T7         3.868   12 42.4  - 2 46   C2     RK   2009-A59
 C/2008 T8         5.279   12 26.6  - 6 13   C3/2   JR   2009-A59
 C/2008 T9         5.304   12 31.8  - 6 02   C3/2   MK   2009-A59
 C/2008 T10       11.846   12 57.8  - 8 32   C3/2   TH   2009-A59

                      (C) Copyright 2008 CBAT
2009 February 2                (9018)            Daniel W. E. Green