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Re: (meteorobs) Meteoroid Size
Hi, everyone:
I've been interested in the discussion on meteoroid sizes, and like
George Zay, have been surprised by the sizes indicated.
But I'm confused!
Robert Lunsford wrote:
>
> 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.
>
I can't find that reference. Bob, is that IMO visual guide the same
thing as my IMO Handbook for Visual Meteor Observations, or something
completely different (please pardon the rookie question!)? Or could you
have a newer version of the Handbook (mine's from 1989)? By the way,
just to really muddy the issue, my copy of the Handbook says on page 12
that meteoroid particles are "mostly no larger than a grain of sand."
Thanks for the help.
Dave Hostetter
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