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Peekskill meteorite
The Peekskill meteorite is among the most historic meteorite events on record. Sixteen separate video recordings document the meteorite burning through the Earth's atmosphere, whereupon it struck a parked car in Peekskill, New York. Peekskill is an H6 monomict breccia;〔(【引用サイトリンク】url=http://www.lpi.usra.edu/meteor/metbull.php )〕 its filigreed texture is the result of the shocking and heating following the impact of two asteroids in outer space.〔(【引用サイトリンク】url=http://www.planetarium.montreal.qc.ca/Information/Expo_Meteorites/Vedettes/peekskill_a.html )〕 The meteorite is of the stony variety and approximately 20% of its mass is tiny flakes of nickel-iron. When it struck Earth, the meteorite weighed and measured one foot (0.30 m) in diameter. The Peekskill meteorite is estimated to be 4.4 billion years old.〔(【引用サイトリンク】url=http://www.bonhams.com/auctions/15648/ )〕
==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."〔(【引用サイトリンク】url=http://www.planetarium.montreal.qc.ca/Information/Expo_Meteorites/Vedettes/peekskill_a.html )〕 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), the speed of the meteorite at impact had slowed to .
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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