All periodic comets eventually lose their volatiles. The result is an extinct comet, although nobody knows exactly what that means... an asteroid? a loose clump of rocky material? There are asteroids which are believed to be extinct comets (3200 Phaethon, for instance, the parent body of the Geminids).

Holmes is a Jupiter class comet, which means it isn't in a particularly stable orbit. It's probably only been in the inner Solar System for a few thousand years, maybe less. It also doesn't seem particularly active in general- the two known outbursts excepted. But anytime it's at all active, it is losing material, and it can't do that forever. It could also be perturbed into an orbit keeping it far from the Sun, in which case it would never be active and therefore wouldn't lose more material, or much closer (or even into) to the Sun, in which case it would rapidly lose its volatiles.

Chris

*****************************************
Chris L Peterson
Cloudbait Observatory
http://www.cloudbait.com


----- Original Message ----- From: "Ron" <[EMAIL PROTECTED]>
To: <[email protected]>
Sent: Thursday, November 22, 2007 9:06 AM
Subject: Re: [meteorite-list] Comet Holmes, always the same........


Hi,

I saw the picture of Comet Holmes, listed as 1892. Does it, or will it ever
dissipatate?

Ron

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