(meteorobs) Orionids in a row
meteoreye at comcast.net
meteoreye at comcast.net
Thu Oct 18 16:27:20 EDT 2007
OK, interesting.
However # 1 appears to be two meteors in opposite drections. Perhaps an ORI and TAU?
#2 aren't precisely aligned.
As to #3 through 6, it does seem that they are in the same general direction, however, the camera is of course focused on a small part of the sky.
Unfortunately, there are no time stamps to the images, so it's hard to speculate about a mechanism.
Wayne
-------------- Original message --------------
From: Karl Antier <ka.antier at wanadoo.fr>
> Dear meteor observers,
>
> Today, there an interesting observation reported on Spaceweather.com
> ( http://www.spaceweather.com ) about Orionids that appeared in a row,
> that is to say whith nearly exactly the same path in the sky (with very
> nice photos).
> And this raised questions to my mind... How is this possible ? At first
> sight, I thought this could be due to paticles that had nearly exactly
> the same orbit (maybe a big particle that fragmented in smaller debris?),
> but thinking further, I found it was maybe not the case as :
> 1- meteoroids following exactly the same orbit shouldn't appear on the
> same apparent path in the sky if they occur at distinct times (here, they
> speak about dozens of minutes, I think), due to the Earth rotation, if I'm
> not wrong
> 2- can meteoroids separated by such long space intervals (180km separated per
> minute) keep exactly the same trajectory ? Has it ever been observed ?
>
> And as anyone ever made such a sighting by the past ?
> Thank you in advance for your answers !
>
> Clear skies and great Orionids !
> Karl
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