(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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