(meteorobs) showers shifting through time

Anne van Weerden A.vanWeerden at uu.nl
Fri Oct 11 06:30:06 EDT 2013

Hi Carlos,

 From a relativistic point of view, orbits which are very elongated 
should have more shift, due to their perihelion precession, than more 
circular ones.
But I guess there are also other influences such as gravity of the large 
planets, I do not know much about the precise orbits of showers.

Greetings, Anne

On 11/10/2013 03:53, Trenary, Carlos wrote:
> Long ago I was taught that the Leonid meteor shower shifts in time and
> occurs about one day later for every 71 years that passes. But is it
> correct that not all showers gradually shift according to such a
> pattern? Do all showers occur at the same time according to the tropical
> year, or do some have a different rate of shift?
> Carlos Trenary
> Carlos.trenary at vanderbilt.edu <mailto:Carlos.trenary at vanderbilt.edu>
> Carlos.trenary at gmail.com <mailto:Carlos.trenary at gmail.com>
> Nashville Tennessee, USA

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