[meteorite-list] Related Meteorite Falls 11 years apart? Both Hammers! Both L6 Olivine-hypersthene

[Richard Kowalski]

Eric, 

For objects with orbital periods in your question, read about the Centaurs, http://en.wikipedia.org/wiki/Centaur_asteroid

These orbit between Jupiter and Saturn.

Any object that has an orbit that takes it near the Earth, but has a period the length you are thinking of would quickly be perturbed by Jupiter, because it's orbit would require it to cross Jupiter's orbit.

There is a means to have an 11 year gap between falls called orbital resonance, http://en.wikipedia.org/wiki/Orbital_resonance

Unfortunately, while initially resonance may make your example seem more possible, there are particulars here that make it even more unlikely...

A few more terms you may want to research are orbital distribution and Kirkwood Gaps.

Cheers

--
Richard Kowalski
Full Moon Photography
IMCA #1081


--- On Sun, 3/7/10, Meteorites USA <eric at meteoritesusa.com> wrote:


> Thanks Richard...
> 
> Are there ANY asteroids with orbits around 10-20 years?
> Percentages of 
> orbital periods of all asteroids in years?
> 
> Regards,
> Eric