[meteorite-list] Celestial Sleuths Track Historic Meteor Procession to South Atlantic
Hello Folks, Olson and Hutcheon publish their findings in the February 2013 issue of Sky Telescope magazine, on newsstands now. Their findings are on pp. 32-34 but there is also another report in an earlier issue of Sky Telescope. See here: O'Keefe John A. (1961) Tektites and the Cyrillid Shower (Sky Telescope, Jan 1961, pp. 4-8). Cheers, Bernd __ 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] Celestial Sleuths Track Historic Meteor Procession to South Atlantic
http://www.txstate.edu/news/news_releases/news_archive/2013/January-2013/Meteors012313.html Celestial sleuths track historic meteor procession to South Atlantic Posted by Jayme Blaschke Texas State University January 23, 2013 A century ago, one of the most spectacular astronomical sights ever recorded lit up the skies when a grand procession of meteors blazed their way through the Earth's atmosphere. The event made headlines from Toronto to Pennsylvania and New York, and in the days that followed eyewitness reports poured in from as far away as Western Canada and Bermuda. Now, on the 100th anniversary of the historic event, astronomers Don Olson of Texas State University and Steve Hutcheon of the Astronomical Association of Queensland, Australia, have answered a long-forgotten call for more information from the pages of the science journal Nature, establishing a far greater range for the great fireball procession than previously known. Olson and Hutcheon publish their findings in the February 2013 issue of Sky Telescope magazine, on newsstands now. A meteor procession occurs when an Earth-grazing meteor breaks up upon entering the atmosphere, creating multiple meteors traveling in nearly identical paths. Instead of plunging down through the atmosphere and burning up within a second or two, as often observed in normal meteor showers, the fireballs in meteor processions travel almost horizontally, nearly parallel to the Earth's surface. Each member of a meteor procession can remain visible to a single observer for about a minute, and the entire procession can take several minutes to pass by. On the evening of Feb. 9, 1913, the dazzling procession of meteors crossed over Canada and the Northeastern United States traveling northwest to southeast. University of Toronto astronomer Clarence A. Chant collected accounts from the astonished eyewitnesses and summarized, To most observers the outstanding feature of the phenomenon was the slow, majestic motion of the bodies; and almost equally remarkable was the perfect formation which they retained. Hundreds of meteors were observed as far west as Saskatchewan, Canada, around 7 p.m. Mountain Time, and as far east as Bermuda at around 10 p.m. Atlantic Time, a distance of more than 2,400 miles. In the years that followed, additional reports from a town in Alberta, Canada, and a ship off the coast of Brazil extended the confirmed range of the meteor procession to more than 6,000 miles. Writing about the procession in Nature in 1916, William F. Denning observed that Such an extended trajectory is without parallel in this branch of astronomy. Further reports from navigators in the South Atlantic Ocean might show that the observed flight was even greater. Later in 1916 Denning observed in the Journal of the Royal Astronomical Society of Canada that, according to the most distant ship sighting known to him, the meteors were still going strongly - and may have pursued their luminous career far southwards over the South Atlantic Ocean, but navigators alone, during morning watches, can give us further information on the subject. Olson and Hutcheon responded to the call for observations nearly a century later. Sifting through a vast array of archival material, the team discovered seven ship reports, all previously unknown, extending the established track of the procession by an additional thousand miles. We had the most wonderful help from U.K. and German archives. By the time they were finished, the German archivists had found six reports and the U.K. archivists had located one more, Olson said. We have seven new accounts from ships' meteorological log books that extend the track farther than ever before. This is the most complete map for this phenomenon that's ever been compiled. The track now goes more than 7,000 miles--that's more than a quarter of the way around the world, he said. That's an almost unbelievable meteor event! The search was complicated by several factors. One was that by the time the meteors crossed all the time zones from Western Canada to reach the ships in the South Atlantic, it was after midnight and therefore the relevant local date was Feb. 10. Additionally, the Earth continued to rotate beneath the meteor procession, effectively moving the track farther west than expected if it were a simple great circle arc. But after an extended search, the seven ships in the South Atlantic off the Brazilian coast turned up to provide valuable data reporting the event. This is the most complete map ever drawn of the ground track of the procession. The known ground track is now more than 7,000 miles long, Olson said. The seven ship accounts are all newly-discovered for this article. The archivists helped us to find new information about one of the greatest meteor events. Unfortunately, the ultimate fate of the spectacular meteor procession will likely never be known. They disappeared into the really obscure South Atlantic, outside of the
Re: [meteorite-list] Celestial Sleuths Track Historic Meteor Procession to South Atlantic
WOW!!! This should be mandatory reading for anyone who has ever thought that the meteor/fireball they saw landed just beyond those trees/houses/hills... This one was seen from Canada to the South Atlantic! Anne M. Black www.IMPACTIKA.com impact...@aol.com -Original Message- From: Ron Baalke baa...@zagami.jpl.nasa.gov To: Meteorite Mailing List meteorite-list@meteoritecentral.com Sent: Wed, Jan 23, 2013 5:28 pm Subject: [meteorite-list] Celestial Sleuths Track Historic Meteor Procession to South Atlantic http://www.txstate.edu/news/news_releases/news_archive/2013/January-2013/Meteors012313.html Celestial sleuths track historic meteor procession to South Atlantic Posted by Jayme Blaschke Texas State University January 23, 2013 A century ago, one of the most spectacular astronomical sights ever recorded lit up the skies when a grand procession of meteors blazed their way through the Earth's atmosphere. The event made headlines from Toronto to Pennsylvania and New York, and in the days that followed eyewitness reports poured in from as far away as Western Canada and Bermuda. Now, on the 100th anniversary of the historic event, astronomers Don Olson of Texas State University and Steve Hutcheon of the Astronomical Association of Queensland, Australia, have answered a long-forgotten call for more information from the pages of the science journal Nature, establishing a far greater range for the great fireball procession than previously known. Olson and Hutcheon publish their findings in the February 2013 issue of Sky Telescope magazine, on newsstands now. A meteor procession occurs when an Earth-grazing meteor breaks up upon entering the atmosphere, creating multiple meteors traveling in nearly identical paths. Instead of plunging down through the atmosphere and burning up within a second or two, as often observed in normal meteor showers, the fireballs in meteor processions travel almost horizontally, nearly parallel to the Earth's surface. Each member of a meteor procession can remain visible to a single observer for about a minute, and the entire procession can take several minutes to pass by. On the evening of Feb. 9, 1913, the dazzling procession of meteors crossed over Canada and the Northeastern United States traveling northwest to southeast. University of Toronto astronomer Clarence A. Chant collected accounts from the astonished eyewitnesses and summarized, To most observers the outstanding feature of the phenomenon was the slow, majestic motion of the bodies; and almost equally remarkable was the perfect formation which they retained. Hundreds of meteors were observed as far west as Saskatchewan, Canada, around 7 p.m. Mountain Time, and as far east as Bermuda at around 10 p.m. Atlantic Time, a distance of more than 2,400 miles. In the years that followed, additional reports from a town in Alberta, Canada, and a ship off the coast of Brazil extended the confirmed range of the meteor procession to more than 6,000 miles. Writing about the procession in Nature in 1916, William F. Denning observed that Such an extended trajectory is without parallel in this branch of astronomy. Further reports from navigators in the South Atlantic Ocean might show that the observed flight was even greater. Later in 1916 Denning observed in the Journal of the Royal Astronomical Society of Canada that, according to the most distant ship sighting known to him, the meteors were still going strongly - and may have pursued their luminous career far southwards over the South Atlantic Ocean, but navigators alone, during morning watches, can give us further information on the subject. Olson and Hutcheon responded to the call for observations nearly a century later. Sifting through a vast array of archival material, the team discovered seven ship reports, all previously unknown, extending the established track of the procession by an additional thousand miles. We had the most wonderful help from U.K. and German archives. By the time they were finished, the German archivists had found six reports and the U.K. archivists had located one more, Olson said. We have seven new accounts from ships' meteorological log books that extend the track farther than ever before. This is the most complete map for this phenomenon that's ever been compiled. The track now goes more than 7,000 miles--that's more than a quarter of the way around the world, he said. That's an almost unbelievable meteor event! The search was complicated by several factors. One was that by the time the meteors crossed all the time zones from Western Canada to reach the ships in the South Atlantic, it was after midnight and therefore the relevant local date was Feb. 10. Additionally, the Earth continued to rotate beneath the meteor procession, effectively moving the track farther west than expected if it were a simple great circle arc. But after an extended search, the seven ships in the South Atlantic off the Brazilian coast turned up
Re: [meteorite-list] Celestial Sleuths Track Historic Meteor Procession to South Atlantic
Anne and List, A lengthy and detailed description of the event can be found here (and downloaded as a PDF if desired): http://articles.adsabs.harvard.edu//full/1956Metic...1..405M/405.000.html A history of research into the path of the fireballs: http://www.pa.msu.edu/people/smith/feb1913.pdf Most of the detailed tracking and calculation of the flight path described in this article is simply a repeat of the work done by John O'Keefe sixty years ago. Some references to O'Keefe's work can be found in the wikipedia article on the Fireball Procession: http://en.wikipedia.org/wiki/Meteor_procession_of_February_9,_1913 I posted about it to the list on March 26, 2005: http://www.mail-archive.com/meteorite-list@meteoritecentral.com/msg32385.html O'Keefe conducted a search of 8,000 local newspapers across the US and Canada for reports of such fireball trains and plotted the results on the map. He discovered that there TWO stripes of fireball trains, parallel to each other but with the second one displaced to the south. Whatever the decaying orbital object was, it [may have] survived through TWO passes of the Earth's atmosphere. Sterling K. Webb - - Original Message - From: Anne Black impact...@aol.com To: baa...@zagami.jpl.nasa.gov; meteorite-list@meteoritecentral.com Sent: Wednesday, January 23, 2013 6:47 PM Subject: Re: [meteorite-list] Celestial Sleuths Track Historic Meteor Procession to South Atlantic WOW!!! This should be mandatory reading for anyone who has ever thought that the meteor/fireball they saw landed just beyond those trees/houses/hills... This one was seen from Canada to the South Atlantic! Anne M. Black www.IMPACTIKA.com impact...@aol.com -Original Message- From: Ron Baalke baa...@zagami.jpl.nasa.gov To: Meteorite Mailing List meteorite-list@meteoritecentral.com Sent: Wed, Jan 23, 2013 5:28 pm Subject: [meteorite-list] Celestial Sleuths Track Historic Meteor Procession to South Atlantic http://www.txstate.edu/news/news_releases/news_archive/2013/January-2013/Meteors012313.html Celestial sleuths track historic meteor procession to South Atlantic Posted by Jayme Blaschke Texas State University January 23, 2013 A century ago, one of the most spectacular astronomical sights ever recorded lit up the skies when a grand procession of meteors blazed their way through the Earth's atmosphere. The event made headlines from Toronto to Pennsylvania and New York, and in the days that followed eyewitness reports poured in from as far away as Western Canada and Bermuda. Now, on the 100th anniversary of the historic event, astronomers Don Olson of Texas State University and Steve Hutcheon of the Astronomical Association of Queensland, Australia, have answered a long-forgotten call for more information from the pages of the science journal Nature, establishing a far greater range for the great fireball procession than previously known. Olson and Hutcheon publish their findings in the February 2013 issue of Sky Telescope magazine, on newsstands now. A meteor procession occurs when an Earth-grazing meteor breaks up upon entering the atmosphere, creating multiple meteors traveling in nearly identical paths. Instead of plunging down through the atmosphere and burning up within a second or two, as often observed in normal meteor showers, the fireballs in meteor processions travel almost horizontally, nearly parallel to the Earth's surface. Each member of a meteor procession can remain visible to a single observer for about a minute, and the entire procession can take several minutes to pass by. On the evening of Feb. 9, 1913, the dazzling procession of meteors crossed over Canada and the Northeastern United States traveling northwest to southeast. University of Toronto astronomer Clarence A. Chant collected accounts from the astonished eyewitnesses and summarized, To most observers the outstanding feature of the phenomenon was the slow, majestic motion of the bodies; and almost equally remarkable was the perfect formation which they retained. Hundreds of meteors were observed as far west as Saskatchewan, Canada, around 7 p.m. Mountain Time, and as far east as Bermuda at around 10 p.m. Atlantic Time, a distance of more than 2,400 miles. In the years that followed, additional reports from a town in Alberta, Canada, and a ship off the coast of Brazil extended the confirmed range of the meteor procession to more than 6,000 miles. Writing about the procession in Nature in 1916, William F. Denning observed that Such an extended trajectory is without parallel in this branch of astronomy. Further reports from navigators in the South Atlantic Ocean might show that the observed flight was even greater. Later in 1916 Denning observed in the Journal of the Royal Astronomical Society of Canada that, according to the most distant ship sighting known to him, the meteors were still going
