Astronomy:Peekskill meteorite

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Short description: Meteorite which landed in Peekskill, New York, United States in 1992
Peekskill meteorite
Peekskill meteorite in Museum of Natural History.jpg
Portion of the meteorite in the National Museum of Natural History
TypeStony-iron
ClassH6
GroupMonomict breccia
Composition20% nickel-iron
CountryUnited States
RegionPeekskill, New York
Coordinates [ ⚑ ] : 41°17′11″N 73°54′59″W / 41.28639°N 73.91639°W / 41.28639; -73.91639
Observed fallYes
Fall dateOctober 9, 1992
TKW12.57 kilograms (27.7 lb)

The Peekskill meteorite is among the most historic meteorite events on record.[1] Sixteen separate video recordings document the meteorite burning through the Earth's atmosphere in October 1992, whereupon it struck a parked car in Peekskill, New York, United States.[2] The Peekskill meteorite is an H6 monomict breccia;[3][4] its filigreed texture is the result of the shocking and heating following the impact of two asteroids in outer space.[5] The meteorite is of the stony variety and approximately 20% of its mass is tiny flakes of nickel-iron.[6] When it struck Earth, the meteorite weighed 27.7 pounds (12.6 kg) and measured one foot (0.30 m) in diameter. The Peekskill meteorite is estimated to be 4.4 billion years old.[7]

Descent

The meteorite fell on October 9, 1992 – an event witnessed by thousands across the East Coast. Numerous residents of Pittsburgh, Philadelphia and Washington D.C. described the "huge greenish fireball."[8] The meteorite broke up over Kentucky and passed over West Virginia and Pennsylvania on its north-northeast trajectory before striking a parked 1980 red Chevy Malibu at approximately 7:50 pm EDT. After traveling through space at a cosmic velocity of 8.8 miles per second (14 km/s, 31,600 miles per hour), the speed of the meteorite at impact had slowed to 164 miles per hour (264 km/h).[9]

Video

As the meteorite fell on a Friday evening, its descent was captured on video by many high school football fans taping local games. The descent was captured by 16 different cameras. Only a handful of meteorite falls have been caught on film—and only the 2013 Russian meteor event has been captured from more angles and localities. The multiple perspectives provided scientists with the ability to calculate the meteorite's flight path to Earth.[2]

Impact

After having been slowed by the Earth's atmosphere, the meteorite was traveling at approximately 164 miles per hour (264 km/h) at impact. The Peekskill meteorite smashed through the trunk of a red 1980 Chevrolet Malibu[10] and narrowly missed the gas tank, finally coming to rest in an impact pit beneath the car. Seventeen-year-old Michelle Knapp,[11] the car's owner, heard the collision from inside her home. She later described the sound as "like a three-car crash". Hurrying outside to investigate the noise, Knapp found her car smashed and the meteorite weighing 27.28 pounds (12.37 kg),[12] still warm and smelling of sulfur, beneath it.[9]

Car of Michelle Knapp hit by a meteorite 1992 in Peekskill, and displayed in Paris.
Car of Michelle Knapp hit by a meteorite 1992 in Peekskill, and displayed in Paris.

Specimens

Knapp retrieved the meteorite, after which it was sold to a consortium of three dealers for $50,000.[9][13] Today, small specimens of the Peekskill meteorite sell for approximately $125 per gram.

Knapp had just purchased the car for $300. Immediately following the extraterrestrial impact, the vehicle was sold to Iris Lang, wife of renowned meteorite collector and dealer Al Lang, for $25,000.[9] Since then, it has been on display in numerous museums throughout the world, including New York City's American Museum of Natural History and France's National Museum of Natural History.[14]

The car, as well as the main mass of the meteorite (which currently weighs 890 grams), are now in the Macovich Collection of Meteorites.[15] Additional specimens of the meteorite can be found in Chicago's Field Museum, the American National History Museum, the Smithsonian, and Los Angeles' Griffith Observatory.[16]

See also

References

  1. ↑ Norton, Richard (1998). Rocks from Space. Missoula, Montana: Mountain Press Publishing Company. pp. 85–87. ISBN 9780878423736. 
  2. ↑ 2.0 2.1 Beech, Martin. "The Peekskill Meteorite and Fireball". University of Regina, Canada. http://uregina.ca/~astro/mb_5.html. 
  3. ↑ "Meteoritical Bulletin Database". The Meteoritical Society. http://www.lpi.usra.edu/meteor/metbull.php. 
  4. ↑ Wlotzka, F. (1993). "Meteoritical Bulletin, No. 75". Meteoritics 28 (5): 692. doi:10.1111/j.1945-5100.1993.tb00641.x. Bibcode: 1993Metic..28..692W. https://adsabs.harvard.edu/cgi-bin/nph-iarticle_query?1993Metic..28..692W. 
  5. ↑ "Peekskill". Montreal Planetarium. http://www.planetarium.montreal.qc.ca/Information/Expo_Meteorites/Vedettes/peekskill_a.html. 
  6. ↑ "NEW YORK STATE GEOLOGICAL SURVEY". http://www.nysm.nysed.gov/nysgs/faqs.html. 
  7. ↑ "Historic Meteorites and Related Americana - October 2007". Bonhams Auction House. http://www.bonhams.com/auctions/15648/. 
  8. ↑ "Peekskill". The Montreal Planetarium. http://www.planetarium.montreal.qc.ca/Information/Expo_Meteorites/Vedettes/peekskill_a.html. 
  9. ↑ 9.0 9.1 9.2 9.3 Norton, Richard (1994). Rocks from Space. Missoula, Montana: Mountain Press Publishing Company. ISBN 9780878423736. 
  10. ↑ "Peekskill Meteorite: Top 10 Meteorites". Discovery. http://science.discovery.com/top-ten/2009/meteors/meteors-08.html. 
  11. ↑ Gannett Suburban Newspaper Oct. 10, 11, 13, 1992
  12. ↑ Nature magazine Vol. 367, Feb. 1994
  13. ↑ Langheinrich, R.A. "The Peekskill Meteorite Car". http://www.nyrockman.com/peekskill.htm. 
  14. ↑ "Meteorite People". Meteorite Times Magazine. http://www.meteorite-times.com/Back_Links/2003/July/Meteorite_People.htm. 
  15. ↑ "Macovich". http://www.macovich.com/. 
  16. ↑ "The Peekskill Meteorite: A Stellar Visitor with a Hollywood Twist". Visit Peekskill. 30 July 2023. https://visitpeekskill.com/what-landed-in-peekskill-new-york-on-october-9-1992/peekskill. 

External links

All in French.



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