(meteorobs) New possible parent comet

[Roberto G.]

From: "Marco Langbroek" <marco.langbroek at wanadoo.nl>
To: "Global Meteor Observing Forum" <meteorobs at meteorobs.org>
Sent: Tuesday, September 07, 2004 9:16 PM
Subject: Re: (meteorobs) New possible parent comet


> >
> > P.S. Can somebody calculate the coordinates of possible radiant related
> > to this comet and velocity of meteors?
>
> With Neslusan et al's software, see below. Very slow meteors, radiant in
Hydra
> southeast of Corvus.
>
> - Marco
>
>
>              EQUINOX: 2000.0;       DATA FOR YEAR: 2004
> --------------------------------------------------------------------
> METH.  ALPHA  DELTA    VG      VH        L     DATE-MAX.    D-DISC.
>  -Q    196.3  -28.9    9.42   38.28    116.1   JULY 18.5     .028
>  -B    196.3  -28.9    9.42   38.28    116.1   JULY 18.5     .028
>  -W    233.5  -37.5   10.53   38.18    116.1   JULY 18.5     .246
>  -A    217.3  -15.2   10.26   38.17     95.1   JUNE 26.5     .083
>  -H    211.9  -30.4   10.59   38.17     95.2   JUNE 26.5     .030
>  -P    207.0  -31.5    9.88   38.17    102.7   JULY  4.4     .026
>  Q+    207.5   -4.7   13.40   17.02    296.1   JAN. 17.0     .800
>  B+    215.2   19.3    4.35   26.65    296.1   JAN. 17.0     .582
>  W+    * THIS METHOD IS NOT APPLICABLE IN THAT CASE *
>  A+    192.0   -4.6   10.25   38.23    137.2   AUG.  9.5     .087
>  H+    184.7  -20.0   10.58   38.23    137.1   AUG.  9.5     .031
>  P+    187.2  -23.9    9.86   38.21    129.5   AUG.  1.4     .027
> --------------------------------------------------------------------
> FIRST/SECOND (-/+) SET OF DATA CONCERNS THE PRE-/POST-PERIHELION ARC
> THE BEST METHOD - PRE-PERIHELION ARC:  P     (D =  .026)
>                 - POST-PERIHELION ARC: P     (D =  .027)
>

Very interesting! I have in my data base of old meteor showers
a meteor rain the 25 July of a year between 562-568 A.C. and the
comet C\568 O1 has orbital elements similar to to C\2004 R1! And
568 O 1 was at perielium the 27.7 August 568, perharps we can see
only passage near the Earth? I shall verify my data base of sources
this week-end.
Roberto Gorelli