(meteorobs) Difference between Bolides and Fireballs -OT

Malcolm J. Currie mjc at star.rl.ac.uk
Fri Jun 13 12:18:56 EDT 2008


On Fri, 13 Jun 2008, Chris Peterson wrote:

> The thing is, that's just another arbitrary definition which doesn't
> match any distinct physical properties.

Yes we've seen what happens in such instances.  Recall the heated
debate of the definition of a planet, and now plutoid.

> of compression of air in front of them (these will generally be
> considered fireballs); (4) bodies large enough to reach the ground still
> carrying some of their cosmic velocity.

That's a good classification based upon physics.  However, isn't there
another group between 3 and 4: body large enough to reach the ground
having lost its cosmic velocity, i.e. free falls.  Aren't most
meteorites in this category?

Malcolm Currie



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