(meteorobs) Definition of a meteor (was Re: Fifth grade science book)
joseph_town at att.net
joseph_town at att.net
Wed Apr 27 16:32:33 EDT 2005
Non existent? Meteorlimbo?
Bill
-------------- Original message ----------------------
From: GeoZay at aol.com
>
>
> >>'meteorite' - a piece of solar system material that survives high-speed
> entry
> through earth's atmosphere, to actually reach earth's surface. May survive
> whole, or it may reach the surface as fragments; may hit ocean or dry land.
> Meteorites (impacts) are much rarer than meteors (flashes of light).
>
> 'meteoroid' - a piece of solar system material, orbiting the sun. May be a
> "left-over" from the formation of the solar system, or a piece of debris
> sloughed off by a comet (most common), or resulting from impact of solar
> system
> bodies with each other (rare). If it happens to intersect with Earth's orbit
> and enter our atmosphere, it will produce a 'meteor'. It may also
> OCCASIONALLY
> produce a 'meteorite' - if it is large enough, dense enough, and slow enough.
> Meteoroids range in size from microscopic, to many meters (yards) across. A
> really LARGE (>100m), rocky 'meteoroid' is also known as an 'asteroid'. A
> really TINY (<1mm or so) particle is called a 'micrometeoroid'.<<
>
> What is the object called after a meteoroid has gone thru the meteor phase
> and is into the dark phase of flight...and has yet to hit the ground? :O)
> George Zay
>
>
>
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