[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: Greenland Meteorite
Mike,
Ya gotta remember, meteor showers are, essentially, commet trails with
material no bigger than a grain of rice. The bolide over Greenland was
emense in comparison - so, comparing their relative speed is not
aplicable. I believe it is calculated that speads faster than 17 mi. pr.
sec. will carry a body beyond the solar systems gravitational pull &
17mps and slower will result in soloar system incorporation.
I have not doubt whatever that many on the list know more about this
than I. Whadda ya say, guys?
Best wishes, Michael
---
Mike DiMuzio wrote:
> Reuters is reporting that the Danish Greenlan Meteorite expedition has ended without their finding any fragments from the fall last December. However, they returned with over 200 dust samples. The scientists estimate that the meteoroid hit Earth's atmosphere at over 35 miles per second, 50 percent fster that the speed of any known meteorite. This led them to speculate that the meteorite originated outside our solar system.
>
> I find this pretty thin evidence, as I believe several meteor showers have meteor speeds estimated well in excess of 35 miles per second, but I could be wrong. They plan on analyzing the age of the dust particles to see if they are older than the solar system. Because of its speed, they speculate the meteorite disintegrated upon entry and any large pieces may never be found.
> Of course, this is only speculation on their part, since they have yet to positively identify the dust as meteoritic in origin. A ststus page can be found
> at http://www.astro.ku.dk/tycho/tbe98/english/status/
> Mike
----------
List Archives are located at http://www.meteoritecentral.com/list_best.html
For other help, FAQ's and subscription info and other resources,
visit http://www.meteoritecentral.com/mailing_list.html
----------
Follow-Ups:
References: