Russian Meteor of 2013 (2013年ロシアの隕石落下)

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2013年チェリャビンスク州の隕石落下は、2013年2月15日エカテリンブルク時間 9時20分26秒にロシア連邦ウラル連邦管区のチェリャビンスク州付近で発生した隕石の落下という天文現象と、隕石の通過と分裂により発生した衝撃波により引き起こされた自然災害。


Russian Meteor (ロシアの隕石落下) : Picture

Chelyabinsk Meteor Flash
Chelyabinsk Meteor Flash
A meteoroid fell to Earth on February 15, streaking some 20 to 30 kilometers above the city of Chelyabinsk, Russia at 9:20am local time. Initially traveling at about 20 kilometers per second, its explosive deceleration after impact with the lower atmosphere created a flash brighter than the Sun. This picture of the brilliant bolide (and others of its persistent trail) was captured by photographer Marat Ametvaleev, surprised during his morning sunrise session creating panoramic images of the nearby frosty landscape. An estimated 500 kilotons of energy was released by the explosion of the 17 meter wide space rock with a mass of 7,000 to 10,000 tons. Actually expected to occur on average once every 100 years, the magnitude of the Chelyabinsk event is the largest known since the Tunguska impact in 1908.

Russian Meteor (ロシアの隕石落下) : Movie

Russian meteor explosion: Spectacular dash cam video of meteorite fireball falling
Russia's Urals region has been rocked by a meteorite explosion in the stratosphere. The impact wave damaged several buildings, and blew out thousands of windows amid frigid winter weather.

The Great Russian Meteor of 2013
What in heaven's blazes is that? Thousands of people living near the Ural Mountains in Russia saw last Friday morning one of the more spectacular meteors of modern times streak across the sky. Forceful sound waves arrived at the ground minutes later, knocking people over and breaking windows for hundreds of kilometers. The above video is a compilation of several car dashcams and includes real time footage of the meteor rampaging, smoke trails drifting, shadows quickly shifting, and even the meteor's light reflecting off the back of a bus. The fireball is thought to have been caused by a car-sized chunk of ice and rock crashing into the Earth's atmosphere. Since the event was captured from so many angles, the meteor's trajectory has become determined well enough to indicate from where it came and to where any resultant pieces might have landed. It is already certain that this meteor had nothing to do with the several-times larger asteroid 2012 DA14 which passed the Earth from a different direction later the same day. If pieces of the meteor are found, they might tell humanity more about the early Solar System, when the meteor was likely formed.

ScienceCasts: What Exploded Over Russia?
Two weeks after an asteroid exploded over Russia's Ural mountains, scientists are making progress understanding the origin and make-up of the unexpected space rock.
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2013年チェリャビンスク州の隕石落下. (2013, February 26). In Wikipedia. ブログパーツ