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Дата изменения: Wed Aug 21 22:42:56 2013
Дата индексирования: Fri Feb 28 10:01:42 2014
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Поисковые слова: mercury surface
Perseid Meteors Over China
Astronomy Picture of the Day
    


Perseid Meteors Over China
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Perseid Meteors Over China
Credit & Copyright: Xiang Zhan (Beijing Planetarium)
Explanation: Comet dust rained down on planet Earth earlier this month, streaking through dark skies in the annual Perseid meteor shower. While enjoying the anticipated space weather above Zhangbei Prairie, Hebei Province, China, astronomer Xiang Zhan recorded a series of 10 second long exposures spanning four hours on the night of August 12/13 using a wide angle lens. Combining frames which captured 68 meteor flashes, he produced the above composite view of the Perseids of summer. Although the sand-sized comet particles are traveling parallel to each other, the resulting shower meteors clearly seem to radiate from a single point on the sky in the eponymous constellation Perseus. The radiant effect is due to perspective, as the parallel tracks appear to converge at a distance. The next notable meteor shower may be the Orionids in late October.

Gallery: Highlights of the 2013 Perseids Meteor Shower

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Authors & editors: Robert Nemiroff (MTU) & Jerry Bonnell (USRA)
NASA Web Site Statements, Warnings, and Disclaimers
NASA Official: Jay Norris. Specific rights apply.
A service of: LHEA at NASA / GSFC
& Michigan Tech. U.

Based on Astronomy Picture Of the Day

Publications with keywords: Perseids
Publications with words: Perseids
See also:
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