Re: [meteorite-list] Fireball reports coming in from Michigan

2007-03-12 Thread MexicoDoug
"Hello  Chris, List, If anyone receives more information regarding this
event, please  contact me on or off list. Thanks, Larry"

Listees, Larry, hope we can keep this on-list for all those interested.  The
local astronomy club seems to have it covered (GTA = Greater Toronto Area):

Best, Doug

http://durhamregion.typepad.com/astronomy/2007/03/meteor_lights_u.html

Sunday March 11th at about 8 PM -People throughout the GTA witnessed a
fireball moving across our sky towards the west.  Police switchboards from
the Regions of Durham, York and Toronto started to receive the calls of the
curious and the concerned.  Was it a plane in distress?  A meteor shower?  A
UFO?  Maybe even "space junk" such as a spent rocket booster finally making
it back to Earth after years in orbit.

What people likely saw was the blazing trail of a little rock burning up in
our upper atmosphere as it traversed the sky.  Usually with such events,
it's unlikely that anything actually makes it to the ground.

What's happening here?  In a word -compression.  As the object enters the
atmosphere, it compresses the air in front of it.  The air heats up to
extremely high temperatures, consuming the unfortunate object in the
process.  You can experience something similar -on a smaller scale of
course- when you pump up a bicycle tire with a manual air pump.  The pump
gets hotter and hotter as you compress the air in the tire to a higher
pressure.

Will we find any physical evidence of last night's sky show?  Not likely but
if we do, I'll keep you posted.

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Re: [meteorite-list] Fireball reports coming in from Michigan

2007-03-12 Thread Thetoprok
In a message dated 3/11/2007 8:00:56 P.M.  Eastern Standard Time, 
[EMAIL PROTECTED] writes:
I've received three  fireball reports in the last few minutes from 
Michigan and Ontario. I  usually consider multiple out-of-area (Colorado) 
reports significant since I  don't get many. The event was at 1955-2000 
EDT, roughly north to south,  blue-green with lots of fragmentation, 
terminal point approximately over  Detroit. Definitely east of South 
Bend, and west of London. The path may  have crossed most of the Lower  
Peninsula.

Chris

*
Chris  L Peterson
Cloudbait  Observatory
http://www.cloudbait.com


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Hello  Chris, List,
If anyone receives more information regarding this event, please  contact me 
on or off list.
Thanks,
Larry  

** AOL now offers free 
email to everyone.  Find out more about what's free from AOL at 
http://www.aol.com.
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[meteorite-list] Fireball reports coming in from Michigan

2007-03-11 Thread Chris Peterson
I've received three fireball reports in the last few minutes from 
Michigan and Ontario. I usually consider multiple out-of-area (Colorado) 
reports significant since I don't get many. The event was at 1955-2000 
EDT, roughly north to south, blue-green with lots of fragmentation, 
terminal point approximately over Detroit. Definitely east of South 
Bend, and west of London. The path may have crossed most of the Lower 
Peninsula.

Chris

*
Chris L Peterson
Cloudbait Observatory
http://www.cloudbait.com


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