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IAUC 9077: COMET P/2009 S4 (CATALINA-LINEAR); C/2009 E2-E5, C/2009 F8,, C/2009 F9

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                                                  Circular No. 9077
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 S4 (CATALINA-LINEAR)
     J. Scotti, Lunar and Planetary Laboratory, reports his
recovery of comet P/2004 EW_38 (cf. IAUC 8322), noting only stellar
appearance, on CCD images taken with the 1.8-m Spacewatch telescope
at Kitt Peak.

     2009 UT             R.A. (2000) Decl.       Mag.
     Sept.21.37293    2 47 29.46   +13 09 41.3   22.0
          23.33491    2 46 55.91   +13 08 18.5
          28.44718    2 45 04.37   +13 03 17.8   21.9

The indicated correction to the orbit prediction on MPC 59600 is
Delta(T) = +0.02 day.  Additional astrometry, the following linked
orbital elements, residuals, and an ephemeris appear on MPEC
2009-S126.

                    Epoch = 2010 Sept. 1.0 TT
     T = 2010 Sept. 3.7086 TT         Peri. =  90.1359
     e = 0.500013                     Node  =  49.8835  2000.0
     q = 1.794822 AU                  Incl. =   6.5249
       a =  3.589741 AU    n = 0.1449137    P =   6.80 years


COMETS C/2009 E2-E5, C/2009 F8, AND C/2009 F9 (SOHO)
     Further to IAUCs 9065 and 9070, additional presumed comets
have been found on SOHO website images -- all Kreutz sungrazers
except for C/2009 E3 (Meyer group).  C/2009 E2 (also found by B.
Zhou) was small and slightly diffuse (mag about 7).  C/2009 E3 was
tiny and stellar in appearance (mag about 7.5-8), and it faded
rapidly.  C/2009 E4 was small and slightly diffuse (mag about 6.5-7)
in C3 images; in C2 images it was faint, diffuse, and slightly
elongated.  C/2009 E5 was very diffuse (mag about 8).  C/2009 F8
was slightly diffuse (mag about 7-7.5) in C3 images, and small and
elongated in C2 images.  C/2009 F9 was very small and condensed
(mag about 7.5) in C3 images, and slightly elongated (but stellar
in appearance) in C2 images.

 Comet        2009 UT       R.A.(2000)Decl.   Inst.  F    MPEC
 C/2009 E2    Mar.  1.221   23 07.6  - 8 16   C3     MK   2009-N01
 C/2009 E3          7.463   23 17.1  - 3 27   C2     EB   2009-N01
 C/2009 E4         10.138   23 44.8  - 5 09   C3/2   WX   2009-N01
 C/2009 E5         10.229   23 30.5  - 4 49   C2     BZ   2009-N29
 C/2009 F8         16.862    0 04.1  - 2 09   C3/2   MU   2009-N29
 C/2009 F9         28.471    0 44.4  + 2 17   C3/2   HS   2009-N29

                      (C) Copyright 2009 CBAT
2009 September 28              (9077)            Daniel W. E. Green

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