(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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