[meteorite-list] Farmington

From: Rhett Bourland <rbourlan_at_meteoritecentral.com>
Date: Thu Apr 22 09:48:14 2004
Message-ID: <IOEBKAHMGFBDJMOFGDFNEEGICMAA.rbourlan_at_evansville.net>

Wow, how is it that even when you get one question answered you come up with
two new ones? Anyways, here you go. See if you can answer these. Please
remember though that I am not a professional researcher so some of this may
sound kind of out there.
I've heard before that Farmington was probally part of a meteoroid stream
(which was the main reason I purchased a slice of it for my collection) that
was observed to have impacted the moon. The fall date of this meteorite was
June 28, 1890. If I'm not mistaken this would make it part of the Taurid
stream. I've also heard that its suspected that the impactor that caused
the Tunguska event could have been part of the Taurid meteroid stream as
well as its fall date was June 30, 1908. Some of the more recent research
of the Tunguska event has suggested that it was caused by a stony body. Now
that I've got that out of the ways, my questions are is it possible that my
assumptions are correct and that Farmington and Tunguska are from the same
source? It would seem a good way to help prove or disprove would be to
check and see what other meteorites have fallen in the same time period to
see if there are any other L5's out there. Another question would be if
Tunguska really was part of this stream then wouldn't a good place to look
for potentially hazardous impactors be in the orbits of known meteoroid
streams (especially the Taurids)?
Comments anyone?
Thanks,
Rhett Bourland
www.asteroidmodels.com
www.asteroidmodels.com/personal

-----Original Message-----
From: meteorite-list-admin_at_meteoritecentral.com
[mailto:meteorite-list-admin_at_meteoritecentral.com]On Behalf Of Bernd
Pauli HD
Sent: Sunday, October 28, 2001 3:36 AM
To: Martin Horejsi
Cc: meteorite-list_at_meteoritecentral.com
Subject: [meteorite-list] Farmington


Rhett kindly asked:

> "Would Farmington be on the list of
> meteorites with calculated orbits as well?"

Martin responded:

> It is interesting that you mention Farmington. May I ask where you got
> its name as a possible candidate? That might help jog my memory.

Hello All!

Here is something that may prove helpful:

OBERST J. (1989) Possible relationship between the Farmington meteorite
and a seismically detected swarm of meteoroids impacting the Moon
(Meteoritics 24-1, 1989, pp. 23-28, excerpt):

Geocentric radiant of the Farmington meteorite / Geocentric radiants,
all in degree

Event - Encounter time - Right ascension - Declination - Ecliptic
longitude - Reference

Farmington - June 25, 1890 - 87 (88,88,89) / 2 (6, 8, 9) - 86
(88,88,89) - Levin et al. (1976)
Farmington - June 25, 1890 - 81 (83,84,84) /- 18 (-11,-8,-7) - 79
(82,83,84) - Sekanina (1983)

Oberst computed the geocentric radiants for a range of possible
atmospheric entry speeds of 13 km/s and, in brackets, 16, 19, and 22
km/s, suggested for the Farmington meteorite (Levin et al., 1976).

Reference:

LEVIN B.J. et al. (1976) Farmington meteorite: A fragment
of an Apollo asteroid? (Icarus 28, 307-324).


Best wishes,

Bernd

Show your support at the Red Cross Disaster Relief Fund -
http://s1.amazon.com/exec/varzea/ts/my-pay-page/PKAXFNQH7EKCX/058-5084202-71
56648
_______________________________________________
Meteorite-list mailing list
Meteorite-list_at_meteoritecentral.com
http://www.pairlist.net/mailman/listinfo/meteorite-list
Received on Sun 28 Oct 2001 11:31:03 PM PST