(meteorobs) showers shifting through time
smkolins at mac.com
Fri Oct 11 06:35:43 EDT 2013
Over large time scales I'd say the dynamics of Earth's orbit and would matter a lot.
On Oct 11, 2013, at 6:30 AM, Anne van Weerden <A.vanWeerden at uu.nl> wrote:
> 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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