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Re: Lyrid Meteor Shower Reminder
GeoZay schrieb:
> It's the result of a lot of lucky circumstances. Such as the meteorite
> has to be made up of stronger material than what you will find in a
> meteor shower. The velocity should be sufficiently slow so it won't
> burn up or explode. Usually this means the encounter is best to occur
> in the late afternoon or early evenings.
Hello List!
Just one more note: Let's be careful not to confuse meteor shower
members on the one hand, and meteorite times of fall on the other.
There is no correlation because meteors belong to comets and
meteorites usually come from the asteroid belt. Some statistics:
The monthly variation of meteorite falls reaches a maximum in June
(about 109 documented falls) and a minimum in March (about 60) and
December (about 67).
There is no major meteor shower in June, whereas the Geminids (Dec.
13-14, ZHR = 90; 34 km/s) occur when there is a minimum of meteorite
falls.
Even more impressing is a look at the hourly variation of meteorite
falls compared to meteor showers:
There is a maximum of meteorite falls at about 15:00-16:00 hrs in the
afternoon (about 79 falls) versus about 12 falls between 02:00 and
04:00 hrs in the early morning - in other words exactly when you can
expect a major number of meteors because the radiant is high(er) in the
sky after midnight.
Best wishes, Bernd
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