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Re: Recent Kract comet (July 4)

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  • rainerkracht
    ... yes, this is possible. I have measured seven positions 02:30 - 04:30 UTC and could link them with the observations of C/2002 S7. (T = 2008 July 04.382) But
    Message 1 of 3 , Jul 6, 2008
      --- In sohohunter@yahoogroups.com, "Dimitry Chestnov" <dirl89@...>
      wrote:
      >
      > Rainer,
      >
      > Can the recent Kracht comet be a return of C/2002 S7 ?
      >
      > The perihelion is around 2008 07 04.426 UT.
      >
      yes, this is possible.
      I have measured seven positions 02:30 - 04:30 UTC
      and could link them with the observations of C/2002 S7.
      (T = 2008 July 04.382)
      But the residuals of the new observations look a bit suspicious

      No JD d|r| (Gm) dRho (Gm) dRA*(") dDec (") dAng
      (")
      31 2454651.604170 9.006E-03 0.000E+00 13.506 0.402
      12.417
      32 2454651.620830 7.583E-03 -5.684E-14 9.161 6.203
      10.456
      33 2454651.629170 5.409E-03 0.000E+00 0.932 7.409
      7.458
      34 2454651.645830 6.856E-03 -2.842E-14 -1.514 9.350
      9.452
      35 2454651.662500 1.403E-02 0.000E+00 -14.925 13.650
      19.347
      36 2454651.670830 1.575E-02 2.842E-14 -12.133 18.631
      21.710
      37 2454651.687500 1.388E-02 0.000E+00 -2.087 19.041
      19.137

      Perhaps Brian will get a better linkage with Karl's measurements.

      Rainer
    • rainerkracht
      ... dAng ... I should add that none of the 1996 December comets matches with the pair new comet = C/2002 S7. Perhaps the 1996 December comets were unobserved
      Message 2 of 3 , Jul 7, 2008
        --- In sohohunter@yahoogroups.com, "rainerkracht" <r.kracht@...>
        wrote:
        >
        > --- In sohohunter@yahoogroups.com, "Dimitry Chestnov" <dirl89@>
        > wrote:
        > >
        > > Rainer,
        > >
        > > Can the recent Kracht comet be a return of C/2002 S7 ?
        > >
        > > The perihelion is around 2008 07 04.426 UT.
        > >
        > yes, this is possible.
        > I have measured seven positions 02:30 - 04:30 UTC
        > and could link them with the observations of C/2002 S7.
        > (T = 2008 July 04.382)
        > But the residuals of the new observations look a bit suspicious
        >
        > No JD d|r| (Gm) dRho (Gm) dRA*(") dDec (")
        dAng
        > (")
        > 31 2454651.604170 9.006E-03 0.000E+00 13.506 0.402
        > 12.417
        > 32 2454651.620830 7.583E-03 -5.684E-14 9.161 6.203
        > 10.456
        > 33 2454651.629170 5.409E-03 0.000E+00 0.932 7.409
        > 7.458
        > 34 2454651.645830 6.856E-03 -2.842E-14 -1.514 9.350
        > 9.452
        > 35 2454651.662500 1.403E-02 0.000E+00 -14.925 13.650
        > 19.347
        > 36 2454651.670830 1.575E-02 2.842E-14 -12.133 18.631
        > 21.710
        > 37 2454651.687500 1.388E-02 0.000E+00 -2.087 19.041
        > 19.137
        >
        > Perhaps Brian will get a better linkage with Karl's measurements.
        >
        > Rainer
        >

        I should add that none of the 1996 December comets matches with the
        pair new comet = C/2002 S7. Perhaps the 1996 December comets were
        unobserved in 2002 (returning in October 2002?).

        Rainer
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