(meteorobs) OT -1610 Debris stream significantly larger or denser? Pictures

[Larry]

You could very well be right Karl.

Here is a small group of some of the early evening ones included with 
others. These files are in a TEMPORARY location.
http://www.geocities.com/stange34@sbcglobal.net/page6.html

Larry
YCSentinel


----- Original Message ----- 
From: "Karl Antier" <ka.antier at wanadoo.fr>
To: "Global Meteor Observing Forum" <meteorobs at meteorobs.org>
Sent: 2009/08/17 13:13
Subject: Re: (meteorobs) OT -1610 Debris stream significantly larger or 
denser?


> Hi Larry, hi all of you,
>
> I don't think yous question has been answered, so I try to answer it, but
> lease correct me if I'm wrong, as most of you are more specialists in
> meteoroids dynamics than I am.
>
>> In that first stream the meteors/fireballs are brighter and longer 
>> lasting
>> on my camera than at any other time in the Perseid shower periods. This 
>> was
>> recorded on both late evenings of the 11th & 12th at 10PM to 11PM PST.
>>
>> It might be explained the Comet swift-Tuttle was larger in 1610, or
>> contained a newer surface of rougher texture at that time, which has been
>> systematically become smoother(?) or denser as the Comet lost more of its
>> outer shell debris over time.
>
> I don't think so.
> In my own opinion, this effect may mainly due to the mass-sorting of the
> particles along 109P/swift-Tutle path. The smallest meteoroids are easy
> to move by solar winds and other forces, whereas biggest ones are more
> difficult to put out of their original orbit. That's why, for example,
> the 1998 Leonid display (which occured 24h before the expected storm,
> and was due to the crossing of a very old trail, ~1300) was constituted
> of very bright fireballs. I think it must be the same effect that might
> have given the biggest number of bright Perseids during the 1610-trail
> this year.
>
> Clear skies,
> Karl
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