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Getting to Know Comet Borrelly [zz]
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Getting to Know Comet Borrelly [zz]# Astronomy - 天文
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At this week's Lunar and Planetary Science Conference, space scientists
presented new insight on Deep Space 1's recent target, Comet Borrelly.
by Vanessa Thomas
On September 22, 2001, NASA's Deep Space 1 probe proved victorious in a daring
adventure when it introduced a comet called Borrelly to the people of Earth.
In a chancy maneuver that day, Deep Space 1 altered our view of Borrelly as a
mysterious, dust-cloaked object to an exciting astrogeology subject.
Designed not as a science mission bu
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Supplementary information about comet Borrelly flyby by DS1:
Comet Borrelly was discovered at the beginning of last century. It's a Jupiter
family comet with a 6.9 year period about the Sun. It's the second comet
visited by flyby mission with nucleus photographed directly besides Comet
Halley in 1986. You can check out the published pictures of comet nucleus
from http://nmp.jpl.nasa.gov/ds1/images.html. The flyby was performed before
Borrelly passes its perihelion with a flyby velocity of 16 km/
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