Re: (meteorobs) Meteoroid Size

To: meteorobs@latrade.com
Subject: Re: (meteorobs) Meteoroid Size
From: GeoZay@aol.com
Date: Wed, 30 Sep 1998 13:04:49 EDT
Reply-To: meteorobs@latrade.com
Sender: owner-meteorobs

In a message dated 98-09-30 12:52:19 EDT, you write:

Bob<< 
 Dr Lukic,
 Thank you for taking the time to so thoroughly explain the relationship
 between size, velocity, and apparent magnitudes of meteors.<<

Yes, well done.
 
Bob>> As stated in the IMO's visual guide on page 18, the average diameter of
 a zero magnitude meteor from the Eta Aquarid stream with a velocity of
 66 kilometers per second is 2 centimeters with a mass of 1 gram.
 Even for a faint magnitude +7 meteor from this shower the average
 diameter is stated to be 1 millimeter which is much larger than a grain
 of sand, even if that grain comes from California! <<

Looks like the horse is on me with this one? I've grew up with being told that
the "typical meteor is only about the size of a grain of sand", that it pretty
much got itself chiseled into stone. Looks like I'm gonna have to revise that
understanding?
 
George Zay

Follow-Ups:

Re: (meteorobs) Meteoroid Size

From: Malcolm Currie <mjc@ast.star.rl.acdot uk>