(meteorobs) Nice variety of Fireballs occured.

[Chris Peterson]

Hi Ed-

My own modeling work. There seems to be no lower bound on brightness- 
slow, several centimeter objects on very shallow trajectories experience 
gradual deceleration high in the atmosphere, and can probably survive to 
the ground without generating any visible light. The mag -6 value you 
suggest may be referring to more typical meteorite generating cases, but 
I don't think it can be offered as an absolute limit.

Chris

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


----- Original Message ----- 
From: "Ed Majden" <epmajden at shaw.ca>
To: "Global Meteor Observing Forum" <meteorobs at meteorobs.org>
Sent: Saturday, October 06, 2007 5:53 PM
Subject: Re: (meteorobs) Nice variety of Fireballs occured.


> Chris:
> What is your reference for a meteorite dropping meteor that didn't 
> reach fireball brightness?  I guess you could be talking about 
> micro-meteorites that float to the ground as dust!
> Ed