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Re: (meteorobs) Meteoroid Size
I am guessing that should be 0.2 centimeters rather than 2 centimeters.
It is a better fit with the stated weight also, a 2cm object weighing 1
gram would have the density of styrofoam.
Dale
Dave Hostetter wrote:
>
> 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 have a newer version of the Handbook (mine's from 1989)?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
--
Dale Ireland 47.7N 122.7W
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