Meteorite Over Edmonton

Message boards : SETI@home Science : Meteorite Over Edmonton
Message board moderation

To post messages, you must log in.

AuthorMessage
Profile Lampros
Avatar

Send message
Joined: 17 Jun 02
Posts: 279
Credit: 13,973,726
RAC: 0
Canada
Message 833028 - Posted: 22 Nov 2008, 1:27:12 UTC

I was extremely lucky to see this as I left a customers place. Night sky lit up. I've seen low level meteorites before, but this was very bright.

Meteorite

Search for Meteorite
ID: 833028 · Report as offensive
Profile Clyde C. Phillips, III

Send message
Joined: 2 Aug 00
Posts: 1851
Credit: 5,955,047
RAC: 0
United States
Message 833320 - Posted: 22 Nov 2008, 19:27:18 UTC

Looks just like a sunset.
ID: 833320 · Report as offensive
Profile Lampros
Avatar

Send message
Joined: 17 Jun 02
Posts: 279
Credit: 13,973,726
RAC: 0
Canada
Message 833404 - Posted: 23 Nov 2008, 1:54:16 UTC - in response to Message 833320.  

Looks just like a sunset.


Thats not the sun though. 5:30pm at this time of year here, its already dark.
The flash of light it let off when it broke up was unreal.
Latest info I've heard, they figure it may have been up to 12 meters diameter.

ID: 833404 · Report as offensive
Profile Clyde C. Phillips, III

Send message
Joined: 2 Aug 00
Posts: 1851
Credit: 5,955,047
RAC: 0
United States
Message 833666 - Posted: 23 Nov 2008, 18:43:59 UTC

Something that large should be located very quickly. It's understandable that at 53-1/2 degrees north the Sun would set very early at this time of the season. Down here 15 degrees farther south the Sun has just barely set at 5:30 PM. On the east coast (of the US) at this latitude it would be much darker, though.
ID: 833666 · Report as offensive
Profile RandyC
Avatar

Send message
Joined: 20 Oct 99
Posts: 714
Credit: 1,704,345
RAC: 0
United States
Message 833728 - Posted: 23 Nov 2008, 23:03:15 UTC - in response to Message 833404.  

Looks just like a sunset.


Thats not the sun though. 5:30pm at this time of year here, its already dark.
The flash of light it let off when it broke up was unreal.
Latest info I've heard, they figure it may have been up to 12 meters diameter.


Closer to 12 centimeters probably.

News story
Despite its size and the noise it made entering the atmosphere, the meteor was probably no bigger than a grapefruit, Edmonton space educator Randy Atwood told CTV Calgary. The meteor may have broken into small pieces before hitting the ground, or it may have burned up entirely before touching down.
ID: 833728 · Report as offensive
Profile BentStar
Avatar

Send message
Joined: 20 Mar 04
Posts: 69
Credit: 126,979
RAC: 0
United States
Message 833782 - Posted: 24 Nov 2008, 0:43:49 UTC

I've read the size as possibly being between a chair and a desk, but I seriously doubt it was 12 meters in diameter (the size of a 3 story townhome?).
ID: 833782 · Report as offensive
Profile RandyC
Avatar

Send message
Joined: 20 Oct 99
Posts: 714
Credit: 1,704,345
RAC: 0
United States
Message 833793 - Posted: 24 Nov 2008, 1:16:43 UTC - in response to Message 833782.  

I've read the size as possibly being between a chair and a desk, but I seriously doubt it was 12 meters in diameter (the size of a 3 story townhome?).


That'd make a pretty big hole. Say the size of Meteor Crater AZ? No way.
ID: 833793 · Report as offensive
Profile Lampros
Avatar

Send message
Joined: 17 Jun 02
Posts: 279
Credit: 13,973,726
RAC: 0
Canada
Message 833796 - Posted: 24 Nov 2008, 1:38:42 UTC - in response to Message 833793.  
Last modified: 24 Nov 2008, 1:58:51 UTC

I've read the size as possibly being between a chair and a desk, but I seriously doubt it was 12 meters in diameter (the size of a 3 story townhome?).


That'd make a pretty big hole. Say the size of Meteor Crater AZ? No way.



That's what I thought too. I'll try and find the article.
They must be talking about it's original size, before it broke up.

Here it is.

"The rock seems to have flown in the general direction east of Red Deer and west of Saskatoon and appears to be about 18 metres or larger, he added."
ID: 833796 · Report as offensive
Larry Monske

Send message
Joined: 17 Sep 05
Posts: 281
Credit: 554,328
RAC: 0
United States
Message 834117 - Posted: 25 Nov 2008, 3:39:55 UTC - in response to Message 833796.  

A recent study said it weighed up to ten tons and was as big a large car. At 15000 feet it broke into a dozen or more pieces. If you could find the impact site a metal detector would also be helpful since most meteorites have a rich metal composition. when it broke up it showed on radar.
ID: 834117 · Report as offensive
Profile skildude
Avatar

Send message
Joined: 4 Oct 00
Posts: 9541
Credit: 50,759,529
RAC: 60
Yemen
Message 834566 - Posted: 26 Nov 2008, 17:59:17 UTC

That certainly seemed like a very large stone coming down. We had a large meteorite fly across the sky one night when I lived in Wisconsin


In a rich man's house there is no place to spit but his face.
Diogenes Of Sinope
ID: 834566 · Report as offensive
Profile Clyde C. Phillips, III

Send message
Joined: 2 Aug 00
Posts: 1851
Credit: 5,955,047
RAC: 0
United States
Message 834577 - Posted: 26 Nov 2008, 18:45:53 UTC

If a ten-ton meteor broke into a dozen (or even more) pieces the holes in the ground should be very evident. Those pieces would probably be falling at terminal velocity and being solid rock or iron would hit the ground at several hundred miles (kilometers) per hour.
ID: 834577 · Report as offensive
Larry Monske

Send message
Joined: 17 Sep 05
Posts: 281
Credit: 554,328
RAC: 0
United States
Message 834591 - Posted: 26 Nov 2008, 19:14:02 UTC - in response to Message 834577.  

when I was in germany a potatoe sized rock fell in a farmers field it made a hole 7 feet deep and over 20 feet in circumference. It hit in mud and was recovered intact. These can come in at 60,000 mph and iron ones will hit the surface.
ID: 834591 · Report as offensive
Larry Monske

Send message
Joined: 17 Sep 05
Posts: 281
Credit: 554,328
RAC: 0
United States
Message 834592 - Posted: 26 Nov 2008, 19:17:58 UTC - in response to Message 833793.  

The rock that formed meteor crater or barringer crater in arizona was maybe 550 tons. The size of a train engine. It threw material out to 60 miles and had effects out to 100 miles.
ID: 834592 · Report as offensive
Profile skildude
Avatar

Send message
Joined: 4 Oct 00
Posts: 9541
Credit: 50,759,529
RAC: 60
Yemen
Message 834629 - Posted: 26 Nov 2008, 20:53:31 UTC - in response to Message 834577.  

If a ten-ton meteor broke into a dozen (or even more) pieces the holes in the ground should be very evident. Those pieces would probably be falling at terminal velocity and being solid rock or iron would hit the ground at several hundred miles (kilometers) per hour.

the burning trail in thje atmosphere is airbraking the rock. most Meteors fall to earth at around 120 mph when they reach the ground. 120 mph being the average terminal velocity. larger objects that enter the atmosphere tend to not slow enough from the atmosphere and do create craters.


In a rich man's house there is no place to spit but his face.
Diogenes Of Sinope
ID: 834629 · Report as offensive
Profile Clyde C. Phillips, III

Send message
Joined: 2 Aug 00
Posts: 1851
Credit: 5,955,047
RAC: 0
United States
Message 834953 - Posted: 27 Nov 2008, 19:18:09 UTC - in response to Message 834591.  

That potato was probably only part of the meteor that made that hole. I don't see how something that small made a crater that big unless it was traveling at several miles (kilometers) per second. With something that small the air would brake it to terminal velocity and it would go into the ground only a few centimeters. A slightly bigger rock (say one meter diameter) might still be going at terminal velocity but that terminal velocity would be somewhat more than that of a human falling broadside to his motion (about 120 mph or 190 kph) due to the weight, density, streamlining, etc.
ID: 834953 · Report as offensive
Profile Lampros
Avatar

Send message
Joined: 17 Jun 02
Posts: 279
Credit: 13,973,726
RAC: 0
Canada
Message 835772 - Posted: 30 Nov 2008, 17:32:29 UTC

ID: 835772 · Report as offensive
Profile Dr. C.E.T.I.
Avatar

Send message
Joined: 29 Feb 00
Posts: 16019
Credit: 794,685
RAC: 0
United States
Message 835828 - Posted: 30 Nov 2008, 20:07:20 UTC - in response to Message 835772.  



Meteor pieces found.





Geologist Alan Hildebrand knew as soon as he got a close look at it and the other bits of black, dimpled rock nearby that he was looking at emissaries from outer space.

"I know what a meteorite looks like and these are meteorites, very simple," he said.

The fist-sized chunks of black, dimpled rock are small fragments of a 10-tonne meteor that blazed across Prairie skies last week, older than the Earth and from an as-yet-undetermined asteroid belt unimaginably far away.




BOINC Wiki . . .

Science Status Page . . .
ID: 835828 · Report as offensive

Message boards : SETI@home Science : Meteorite Over Edmonton


 
©2024 University of California
 
SETI@home and Astropulse are funded by grants from the National Science Foundation, NASA, and donations from SETI@home volunteers. AstroPulse is funded in part by the NSF through grant AST-0307956.