[meteorite-list] Geological Survey of Canada fails to return piece of meteorite he discovered
Subject: Geological Survey of Canada fails to return piece of meteorite he discovered http://news.nationalpost.com/2013/02/10/yukon-miner-lands-1000-payout-after-geological-survey-of-canada-fails-to-return-piece-of-meteorite-he-discovered/ Just read it, i am not even going to try and summarize it.:Interesting! Any comments? __ Visit the Archives at http://www.meteorite-list-archives.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Fw: [BAA-ebulletin 00711] Sir Patrick Moore
- Original Message - From: "BAA electronic bulletins service" To: Sent: Sunday, December 09, 2012 7:23 AM Subject: [BAA-ebulletin 00711] Sir Patrick Moore == BAA electronic bulletin This is an announcements only list - please do not reply to this message. == It is with the deepest sadness that I report the death just before 12.30 today of Sir Patrick Moore. Patrick has long been an inspiration and guide for so many BAA members. He served as the Association's President from 1982-1984, as well as directing with energy and distinction both the Mercury & Venus Section and the Lunar Section. Indeed, he performed the latter role on two occasions, from 1964-1968 and from 1971-1976. In recent years he has been an honorary Vice-President, and although he has been unable to attend our meetings, he has continued to take an active interest in the affairs of the Association that he first joined in December 1934 at the age of 11. He made a point of visiting the BAA stand at Astrofest 2012, despite not being in the best of health. There can be few BAA members who do not owe their interest in astronomy to the influence of Patrick, either through his numerous publications or his monthly "Sky at Night" television programme. His enthusiasm was deeply infectious, and what he had to say was truly inspirational. Many of us benefited from personal contact with him - the time and energy he devoted to correspondence with all who wrote to him was quite amazing, and his hospitality at Farthings legendary. Patrick's passing was peaceful, at home in Selsey, where he was surrounded by those closest to him. Many of us felt that this day could never come, and that the normal laws of nature would somehow be suspended in this case. Sadly and inevitably, that was not be be, and we shall all miss a presence that has enriched British astronomy, and the lives of most of us, for as long as we can remember. In due course we shall have occasion to pay full and proper tribute to the man and his achievements. The grief we feel at this moment is bitter, but Patrick's legacy is immense - and that is something from which we shall all continue to benefit in the future. Bill Leatherbarrow President == BAA-ebulletin mailing list This is an announcements only list - please do not reply to this message. To unsubscribe please send an e-mail to circad...@britastro.org or visit http://lists.britastro.org/mailman/listinfo/baa-ebulletin (c) 2012 British Astronomical Associationhttp://www.britastro.org/ == __ Visit the Archives at http://www.meteorite-list-archives.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] [radiometeoren] Re: N America DRA burst?
Has anyone reported increased visual rates for the DRAs? Ed - Original Message - From: "Karl-Heinz Gansel" To: ; Sent: Monday, October 08, 2012 11:17 AM Subject: [radiometeoren] Re: N America DRA burst? Hi Jeff, i checked also my spectrum lab counts and all meteor counts a real meteors. Starting here around 16:53h UTC up to 18:00h UTC. I see on many observer charts a strong incrase of counts. Nice!! KH -- DARO http://www.radio-astronomie.de -Ursprüngliche Nachricht- From: Jeff Brower Sent: Monday, October 08, 2012 7:18 PM To: radiometeo...@vvs.be Subject: [radiometeoren] N America DRA burst? Hi all, A heads up on a possible out burst activity. At Oct 8, 2012 at 16/17 UT I seem to have recorded a large rise in meteors. I checked RMOB live and Glen Harris, Mike Otte and Mikhail Svoiski saw the same magnitude of increase in their counts. A look at the spectrogram shows these are real, descrete echoes and not Es or other type of none meteor interference nor solar noise. I should check the Japanese sites to see if they are seeing it as well. Jeff __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Hammer Fall
As a retired RCAF Radar Tech, I always thought a "Hammer Fall" was the result of a careless tech leaving a "hammer" on the wing of an aircraft just before a scramble. Hammers were often used to fine tune Hughes built radar sets like the old MG-2, ha! ha! Ed Majden Courtenay, B.C. __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] B.C. Meteor Network
Welcome to the Sandia All-sky Network. For those interested here is the B.C. Canada web page for our network. http://www.bcmeteors.net/ Ed Majden - I.M.C.A. #2914 EMO Sandia Station Courtenay, B.C. Canada __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] The Poor Man's Space Probe.
Maybe this guy coined this! See: http://www.astronautix.com/articles/abroject.htm Ed Majden - #2914 B.C. Canada __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Asteroid List with Canadian connections.
Here is a list of asteroids with Canadian connections. A bit out of date but these are most of them. http://www.rasc.ca/education/asteroids.shtml __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Wanted Quebec meteorite
I'm looking for a meteorite from Quebec Canada, fall/find. A small St-Robert would be great. If you have a sample let me know. Thanks: Ed Majden IMCA #2914 __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Canadian Falls and Finds
Does anyone know which Canadian fall/find meteorites are in none institutional private collections? Just interested in knowing which may be available to collectors. e-mail me off-list if you like. Thanks: Ed Majden - epmaj...@shaw.ca Courtenay, B.C. Canada __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Hard to get meteorites!
Hello members: I'm looking for a couple of hard to find meteorites, small samples or micro's. They are Pribram Czech. and Innisfree, Alberta Canada. I asked a meteor scientist I know from the Czech Republic and he says most of the Pribram meteorite samples are in a museum, but he thinks there may be a few small samples in private hands. Innisfree falls in this category also. Does anyone know where I can find either of these? Please e-mail me if you can help! Thanks: Ed epmaj...@shaw.ca __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Fwd: [RASC Victoria] An opportunity to support light pollution abatement
All communities should support the use of efficient lighting. I'm doing my best in Courtenay but officialdom is not listening so far! ;-( Ed Majden Courtenay, B.C. Hello friends, It seems like I'm always requesting votes for something! Sorry about that, I hope you all don't mind. This time it's for something I really care about. I along with another graduate student here at the University of Manitoba, Heather Matheson, have created a video as an entry for the TD Bank "Go Green" Challenge, which is looking for ideas to make university campuses more sustainable. In this video we are proposing to create a "Dark Sky Campus" designation for University Campus' analogous to "Dark Sky Preserve" designations that parks can obtained here in Canada (see http://www.rasc.ca/lpa/darksky.shtml for more info on that). We could win $20,000 and $100,000 for our university to spend on green initiatives. We have created a video proposal that is online: http://www.tdgogreenchallenge.com/video/id/149/playid/149 There is an element of "audience participation" in this competition as one of the prizes is based on votes. If you could take the time to support our proposal and vote, it would be very much appreciated! And please feel free to share with anyone else who may be interested. Thanks for your time, Jennifer __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] List of known Rusters?
Hi Jonathan: I did a search for D96 Gun Oil on the internet. I contacted the supplier of this product and he says they will not ship small amounts to Canada. He referred me to some Canadian Dealers but they did not reply to my e- mails. Perhaps they don't stock the stuff anymore. Shipping stuff like this across the border can be problematic and also costly. I phoned a gun collector friend of mine and he says they don't use gun oil anymore, just cloth impregnated wipes. He says in our cold climate when hunting seasons are open gun oils tend to gum things up. He suggested using clear paste wax, auto or floor types. I wonder if anyone has tried this? This may be worth a try! Cheers: Ed From very "WET" Vancouver Island! On 7-Dec-10, at 10:59 PM, Jonathan E. Dongell wrote: Ed, I will sometimes use WD40 on previously treated/preserved irons, as a twice-a-year cleaner/sealer as a "rub-down" with a clean towel. But, I always heat my specimens to ~ 400 F for ~ 20 minutes, prior to every application (let them cool first... ouch...). I have noticed two things when using WD40 on my specimens: 1. it appears to be, at best, only a temporary rust retardant. 2. it does not behave as a 100% water-repellant oil-based product does; in fact, it can (in my opinion) emulsify with water/moisture in the specimen, due to the aliphatic component and/or the wetting agent used in WD40. The later # 2, is why I always insist on heating specimens that receive WD40. You must remove any moisture from within your specimen, or you will risk continued degradation of your specimen BENEATH THE SURFACE over time (in my opinion). The only other reason I might use WD40 is a personal preference. It gives certain irons a slightly darker, almost black-iron oxide or 'fusion-crust' tone or coloration (instead of a shiny, or a gun metal blue, or etc...) with continued usage. However, this same look, is why some collectors DON'T like to use WD40. That said, I would never use WD40 on a "severe ruster". There are much better products (many have already been named on this listing) for retarding rust. But, NEVER apply any of these products (in my opinion) to a specimen (especially a 'severe ruster') until you: 1. remove as much of the alkalis and/or salts as is possible from specimen 2. remove as much ferric oxide as is possible, or convert as much ferric oxide to ferrous oxide (via chemical or electrico-chemical treatment) as is possible 3. apply either a chemical or an electrico-chemical treatment process to stabilize other minerals/metals (when necessary). 4. remove as much (better yet, all) moisture as is possible from specimen. ONLY THEN should you apply your rust prevention product of choice. Remember, these specimens are rusting for a reason. Most severe rusters have come from severe (sometimes anaerobic) environments. You must remove all the above rust 'contributing causes' prior to sealing any of these types of specimen (my opinion). Skipping any of the above steps, and applying a rust preventative, will surely "lock in" these potential 'rust mechanisms' within your specimen, which in fact, will create a more corrosive condition, and hasten the demise of your specimens. One last note... I continue to waiver on this one... Whether it is nobler to preserve the original specimen's "as is" qualities, or is it nobler still, to preserve the specimen from deteriorating away, thus altering forever, the "as is" quality. Alas, there is the rub. Just my opinions... Best of Luck ;>} Jonathan Dongell IMCA 3922 - Original Message - From: "Ed Majden" To: Sent: Monday, December 06, 2010 9:28 AM Subject: [meteorite-list] List of known Rusters? Does anyone have a list of known Iron meteorite rusters? The sample of Nantan China I have split into several pieces. I have been using WD40 on the pieces to retard further problems but this does not work all that well. Have to repeat this every few weeks! Ed Majden Courtenay B.C. Asteroid Majden 142368 (Thanks to Rob Matson) __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] List of known Rusters?
Does anyone have a list of known Iron meteorite rusters? The sample of Nantan China I have split into several pieces. I have been using WD40 on the pieces to retard further problems but this does not work all that well. Have to repeat this every few weeks! Ed Majden Courtenay B.C. Asteroid Majden 142368 (Thanks to Rob Matson) __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] Meteorite-list Digest, Vol 86, Issue 50
Does anyone know if there are any samples of the Canadian meteorite Innisfree in private hands? Ed Majden Courtenay, B.C. __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] Meteorite-list Digest, Vol 86, Issue 30
Does anyone on this list collect meteorite coin/medalions? I have recently bought some and am wondering if there is an interest amungst meteorite types? Ed Majden Courtenay, B.C. ** __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] test posting
Test posting __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] Off-topic E-mail address wanted.
Thanks to all that responded to my request. I have ordered a copy of Hal's book from Southwest Meteorite Labs. Cheers: Ed Majden On 4-Oct-10, at 11:02 AM, Sean T. Murray wrote: katieh...@yahoo.com - Original Message - From: "Ed Majden" To: Cc: "Global Meteor Observing Forum" Sent: Monday, October 04, 2010 1:37 PM Subject: [meteorite-list] Off-topic E-mail address wanted. Does anyone have Harold Povenmire's e-mail address in Indian Harbour, Fl. I'm trying to find a book he wrote on Tektites. Thanks: Ed Majden Courtenay, B.C. Canada __ Visit the Archives at http://www.meteoritecentral.com/mailing-list- archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Off-topic E-mail address wanted.
Does anyone have Harold Povenmire's e-mail address in Indian Harbour, Fl. I'm trying to find a book he wrote on Tektites. Thanks: Ed Majden Courtenay, B.C. Canada __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Other hobbies
Other hobbies: Meteor spectroscopy Astronomy Photography Machine Lathe work. ATM Ed Majden Courtenay, B.C. __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Origin of Tektities
Hi Andrew: I just received an e-mail from Aubrey Whymark in the UK. He referred me to this interesting web site: Ed http://www.tektites.co.uk/ On 11-Sep-10, at 7:54 AM, copernicus1...@telus.blackberry.net wrote: Hey Ed: Thanks for fowarding to the RASClist the Tektites item. Fascinating indeed! I got some insight on a subject I know very little about. Another example of how topics on this list develop and in their on way serve a role in the "invisible college" of the 21st Century. Owen Gingerich talks of such a college in the 16th Century in his "The Book Nobody Read". Cheers, Andrew Oakes __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Origin of Tektites
Are there any tektite experts on this list? The formation of tektites has been a mystery to science. Volcanic origin, Lunar ejecta, meteorite impact origin, explosive electrical discharge, etc. The latter proposed by NASA experiments at an arc-jet facility. What are the current theories on the formation of tektites. Are there any papers on this that I could get my hands on? Thanks: Ed Majden Courtenay, B.C. Canada __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Fwd: Meteorite-list Digest, Vol 84, Issue 18
- --- - Original Message - From: "Meteorites USA" To: Sent: Wednesday, August 11, 2010 11:34 PM Subject: Re: [meteorite-list] Meteor shower meteorite dropping events Thanks for posting this Chris... This sounds like a good topic for an article for my magazine. If you're interested in it, and/or would like to write for the mag on this topic let me know. Anyone have a working theory based on evidence of this associative phenomena? I've heard many people suggest that meteor showers don't drop meteorites. Then I've heard people associate meteorite falls that happen during meteor showers with said shower. And I've also heard that people believe that there is ZERO connection and it's purely coincidence. So which is it? yay or nay, or maybe? or no one really knows...? Eric I have been following the discussion on whether a meteor from a cometary meteor shower can drop a meteorite. This is not likely to occur. Cometary Shower meteors are rather friable dust balls, having been ejected from a Comet as it nears the Sun and over many years gets spread more or less in the same orbit as the parent Comet. The entry velocities of shower meteors is quite high ranging from 71 km/sec for the Leonids down to 23 km/sec for the October Draconids. Fast meteors travelling at 70 km/sec become visible at around 110-115 kms. Slow meteors become visible at around 90 kms or so and burn out around 60 kms. They just don't survive and burn up in the atmosphere. A very bright meteor sometimes referred to as a fireball or bolide originating from a cometary shower can become visible at around 140 kms and burn out at around 40 kms. They enter at too high a velocity to survive as a meteorite. A meteorite dropping fireball, not associated with comets but the asteroid belts have an average velocity of around 17 km/sec or so. These are asteroidal solid fragments ranging from iron types to chondrites or stones. Their survivability depend on their velocity, angle of entry, and whether the object is solid enough not to fragment and burn up. Some of course do fragment and survive to the ground as a meteorite resulting in a multiple sample elliptical drop zone. Lets look at some of the known surviving meteorite falls. Pribram, initial velocity 20.9 km/sec, end point velocity ~7 km/sec. First observed at 98 km with an end point of 13.3 km. Lost City, initial velocity 14.2 km/sec, end point velocity 3.5 km/sec. First observed at 86 km with an end point of 19.5 kms. Innisfree, initial velocity 14.5 km/sec, end point velocity well below 4 km/sec. First observed at 62.4 kms with an end point of 19.5 kms. These and other surviving meteorites originate from the Asteroid Belt, NOT Comets. Well you ask, what about Shoemaker/levy 9 and it's entry with Jupiter. This impact was an actual Comet head, which fragmented into several pieces by Jupiter's gravitational attraction, not the usual cometary ejecta along a Comets orbit. Some speculate that Tunguska was the result of a Cometary collision with the earth. In this case as far as I am aware no fragments were recovered from this event. Comet impacts along with asteroid impacts are a worry to us earthlings as this could result in severe damage perhaps ending in an extinction if the impacting object is large enough. As I understand things a normal meteor shower meteor will Never survive to the ground as the collision with our atmosphere will end its life high in the atmosphere. Impacts of such meteoroids on the Moon during meteor showers is a completely different matter as there is no atmosphere to cause it to burn up. I'd love to get a spectrum of such an impact but most of these are too faint to result in a spectrum as the light is spread out. I'm still hoping! ;-) Oh, meteorites can drop during shower dates as Chris Spratt points out but these are just a random fall not associated with cometary meteor showers. I base my conclusion on the many professional papers kindly sent to me by meteor scientists. Greatly appreciated! Ed Majden - Amateur Meteor Spectroscopy Courtenay, B.C. Canada. __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Collectors are Nuts!
Well Guys & Galls, my comment sure raised a lot of discussion, eh! ;-) I guess I'm a nut also as I collect meteorites. I've always been interested in meteoritics but was first introduced to collecting by Chris Sprat in Victoria after seen his fine collection at a Royal Astronomical Society of Canada, WAA, ASP, convention in 1987. I think I have the date right! I was trying to obtain a sample of each type, but that is not easy. I'm especially interested in meteorites with Canadian connections. I have nine different ones now and am looking for more but the price of some scare me off. I'm an amateur astronomer that has specialised in meteor spectroscopy. Also, operate a Sandia Bolide Detection All-sky from my observatory in Courtenay. This is part of a North American network for tracking fireballs. We hope to eventually triangulate an entry and recover a meteorite. Oh well, one can always hope. No luck yet! I'm just getting my spectrographs ready for the Perseid meteor shower that peaks on Aug 11/12/13th. I hope I didn't get you all upset with me re my comments. Ask Melanie Matthews about me as she knows my comment was just for fun! Cheers: Ed Majden a fellow collector __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Most expensive meteorites!
This confirms my impression of collectors! They are NUTS! I don't single out meteorite collectors but all collectors. Let us look at art as an example. If a painting by a famous artist sells for big bucks and later it turns out to be a fake it is nearly worthless again. It has nothing to do with the quality of the painting but who actually is the so called famous painter. The Ottawa art community, government, if I recall correctly paid big bucks for three stripes painted on a couple of sheets of plywood. Several people said they would duplicate this so called famous painting at a fraction of the cost, but there were no takers. Collectors and their vanity proves they are all NUTS! I have something you don't have! ;-) Meteorites should be about what they do for science and Not scarcity! Ed Majden Courtenay B.C. __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] First photographed meteorite orbits
PRIBRAM - Fell April 7, 1959 - first recovered meteorite with a known orbit - 19 fragments found, largest 4.3 kg - total 9.5 kg recovered. I read somewhere that some fragments were found prior to the trajectory and orbital calculations. Can anyone confirm this with a reference? LOST CITY - First triangulated meteor photographed by the Prairie Network in the U.S.A. Fell 3 Jan 1970 and found 9 Jan 1970. Total wt. 17kg. - I read somewhere that other fragments from this fall have since been recovered. Can anyone confirm this with a reference? INNISFREE - Fell 5 Feb 1977 - Photographed by the Canadian MORP Fireball Network - 11 days later a 2.07 kg sample was found a few hundred meters from the predicted computer projection. 8 other fragments have since been found, Total mass 3.79 kg. Sadly both the Prairie Network in the U.S.A. and the MORP Network in Canada was shut down because of funding issues. The Sandia Research Group has since distributed two different all-sky cameras forming a video patrol network across much of North America. Some others have set up their own all-sky patrol cameras. The first Sandia cameras were of the hub-cap or convex mirror type but there was a problem reducing start and end points of a fireball with this type of system. They have since replaced most of these units with fisheye lens systems which are better. The first two systems used vcr's for recording but this has now been upgraded to video capture of a moving object to a computer hard drive. No more long hours wasted searching vcr tapes. You can see the current network map and contacts at: http:// allsky.ca/NAdatabase.html Ed Majden EMO Station - Courtenay B.C. Canada __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Rare Pallasite meteorite sliced
New piece of Springwater Saskatchewan found. Ed Majden Courtenay, B.C. Canada The meteorite is apparently as big as a backpack. full story with photos: http://tinyurl.com/2cmc62q __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Making thin sections
Thanks to all that responded to my question on making thin sections. Sounds difficult but will give it a try. I have some volcanic lava rocks that I would like to look at. I'll try these before I cut up any of my precious meteorites! The cost of having them commercially done is just too much for an old retired vet. I have a good collection of meteorite thin sections that I got from David New years ago. 33 different including Abee, Peace River, Peekskill, Zagami, Allende, Pultusk, and others from around the World. No, they are not for sale! ;-) Cheers: Ed Majden Courtenay, B.C. Canada __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Making meteorite thin sections.
Hello group: Has anyone made or tried to make meteorite thin sections for viewing under polarised light? If so, could you send me the details on your methods and equipment. I would like to give this a try. Thanks: Ed Majden Courtenay, B.C. Canada __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Fireball temperatures
See: http://folk.ntnu.no/ltheen/meteor/meteor_physical.html Do a search with "google" "for meteor fireball temperatures". There are several papers related to this topic. From a spectroscopic point of view, Jiri Borovicka suggests that the temperature of the main component is around 4500 K and the second component is around 10,000 K (Borovicka 1994) Planetary Space Sci, 42, 145-150. Ed Majden - AMS Meteor Spectroscopy Courtenay, B.C. Canada. __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] ET's Already here!
Of course they are here! They are called "Politicians", ha! ha! Ed __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Meteor Site
Hi again, George: Thanks for the heads up on that meteorite site. I just signed up and am awaiting approval. I also have a nice collection of meteorite samples, around 100 bought a number of years ago before prices went crazy to the ridiculous values of today. Got most of mine from David New in Anacortes, Wa. He has since abandoned selling meteorites because of escalating selling prices. I have some nice Canadian samples but no export permits. I don't intend of selling them anyway. Belly River - Alberta - H6 chondrite - 18.3 g Benton N.B. LL-6 amphoterite - 2.13 g fragment Peace River- Alberta - L6 - 20.1 g slice Bruderheim - Alberta - L6 - 8.7 g slice Abee - Alberta - Enstatite chondrite E4 - 14.5 g slice Springwater - Sask. - Pallasite - 16.5 g slice Tagish Lake - B.C. - c.c. c12 - micro mount 0.046 g Buzzard Coulee - Sask -H4 - 2.9 g and 5.6 g Whitecourt - Alberta - Iron - 11 g fragment I would like to find others but most are in university and professional collections so you seldom see them for sale. Would like to find an Innisfree! Fat chance of that! Cheers: Ed __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Off topic - Volcanic Ash
Hi: Has anyone got any volcanic ash or ejecta from the Iceland volcano that they could send me? I would like to compare it to some Mt. St. Helen's ash that I have. Thanks: Ed Majden 1491 Burgess Rd. Courtenay, B.C. Canada. V9N 5R8 epmaj...@shaw.ca __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Buzzard Coulee's on eBay
Hi Melanie et al: I sent the vendor an email regarding the Buzzard Coulee meteorites she has for sale on eBay. She is under the impression that an export permit is not required if one sample has already been studied by scientists. This of course is not correct and I told her so. I have sent this correspondence to Dr. Alan Hildebrand at the University of Calgary for clarification. No reply as yet as I only sent it late last evening. Cheers: Ed Majden MIAC Associate member. Courtenay, B.C. __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] K/T Boundary material
Paul: Thanks for all the references on K/T boundary layer materials. Thanks to the others that have also left comments to my request for information. Most helpful. Cheers: Ed Majden Courtenay, B.C. __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] K/T Boundary Clay
Hello Group: Does anyone have any experience with K/T Boundary Layer materials? I have obtained a sample of Boundary Clay Granulates from Stevens Klint/Denmark. There is some dispute with this material, as some think it may be of volcanic origin, rather than a meteorite impact, K/ T boundary layer material. Has anyone tried to extract spherules from such samples? If so, how did you do it? Is a SEM required or will a regular microscope work? Any info on this would be appreciated. Thanks: Ed __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Canadian meteorite export laws!
I have a number of meteorites in my small collection from Canadian meteorite falls and finds. I obtained most of them from dealers in the U.S.A. Out of curiosity I asked Dr. Chris Herd from the University of Alberta if one required an export permit to send them out of the country again. Chris's reply surprised me. Quote: "With regards to the Canadian meteorites, yes you will need an export permit. Seems kinda silly if you originally purchased them from American dealers, but that's the law". Strange eh, since they were obtained from American dealers in the first place. None had export permits or any other documentation. Makes one wonder if they were illegally exported out of Canada in the first place. I have seen other Canadian origin meteorites on eBay, with some having export permits and others not. Any comments on this? I'm part of the Sandia All-sky fireball network, operating an all- sky camera station from my backyard observatory in Courtenay on Vancouver Island. My main interest is meteor spectroscopy. I'm also an associate member of MIAC. You can view my web page at: http:// www.members.shaw.ca/epmajden/ Ed Majden - Asteroid Majden 142368 Courtenay B.C. Canada __ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] [specialastrooptics] Special Lenses for Astronomy
New Newsgroup on Yahoogroups.ca Ed Begin forwarded message: From: Ed Date: December 29, 2009 12:15:02 PM PST To: specialastroopt...@yahoogroups.ca Subject: [specialastrooptics] Special Lenses for Astronomy Reply-To: specialastroopt...@yahoogroups.ca I created this newsgroup in order to obtain information on special optical lenses like surplus military lenses, ultra high speed lenses for use in faint meteor recording, direct image on film, with image intensifiers, etc. I am especially interested in the Super Farron f/0.87 - 72 mm f.l. lens that was used by NASA/LRC for a faint meteor spectra patrol back in the 1960/70s. This type of lens was used for aero imaging, x-ray imaging, and CRT recording. I have the latter which is designed for 4:1 imaging of a CRT screen. My question is, can you make this lens focus on objects at infinity? Does anyone have any information on this lens type? I can't get it to focus on objects at infinity unless I remove one of the rear elements. Is this a normal practice or is there another attachment lens that will provide good focus at infinity? __ http://www.meteoritecentral.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Fwd: Dr. Zdenek Ceplecha (1929-2009)
Begin forwarded message: Subject: Dr. Zdenek Ceplecha (1929-2009) Begin forwarded message: Very sad news! Zdenek Ceplecha will be missed by all. Ed Majden Courtenay, B.C. Canada. Begin forwarded message: From: Jiri Borovicka denek Ceplecha (1929-2009) Dear colleagues and friends, it is sad to inform you that well-known Czech meteor astronomer Zdenek Ceplecha passed away on December 4, 2009, at the age of 80 years and 10 months. Zdenek was famous for the observation and analysis of the Pribram meteorite fall in 1959 - the first photographed meteorite fall and the first meteorite with known orbit. He, nevertheless, contributed to many fields of meteor astronomy, e.g. classification of fireballs and meteors, atmospheric fragmentation of meteoroids, fireball spectroscopy, dark flight of meteorites, influx of meteoritic material on Earth, and others. The European fireball network, which he founded in 1963, is still working today and the methods he invented are in use. His review article Meteor Phenomena and Bodies, which he published with several co-authors in 1998, is among the most cited papers in the field. Many of you have seen Zdenek at the conference Bolides and Meteorite Falls this May. He enjoyed the conference and was happy to see many friends. Unfortunately, his health started to deteriorate in September . Jiri Borovicka also on behalf of Pavel Spurny (currently on field trip in Australia) __ http://www.meteoritecentral.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] How much survives entry?
Subject: How much survives entry? 1.(Sterling K. Webb) wrote: How much survives entry? From the Handbook of Iron Meteorites, Volume One, by Vagn F. Buchwald states: Results of studies indicate that 1-4 mm is lost per second of flight. Ablation loss is probably confined to the part of the trajectory that is luminous. The lengths of the luminous trajectories range from about 40 km (Bruderheim) to about 700 km (Orgueil). Ablation can occur for periods of around 4-seconds to over one minute. The total amount of material lost ranges from a few percent to 100% with an average velocity of 10 km/second. This is not a direct quote but has been edited. Ed Majden - Asteroid Majden 142368 Courtenay, B.C. Canada http://www.members.shaw.ca/epmajden/ __ http://www.meteoritecentral.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
