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vesta24.txt
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1996-01-19
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984b
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EMBARGOED UNTIL: 2:00 PM EDT April 19, 1995
PHOTO RELEASE NO.: STScI-PRC95-20A
HUBBLE FOLLOWS THE ROTATION OF THE ASTEROID VESTA
This is a NASA Hubble Space Telescope series of 24 images showing the
full 5.34-hour rotation of the 325-mile diameter (525 kilometer)
asteroid Vesta.
Hubble resolves features as small as 50 miles across, allowing
astronomers to map Vesta's geologically diverse terrain. The surface
is a complex record of Vesta's four billion-year history. Features
include ancient lava flows, and a gigantic impact basin that is so
deep, it exposes the asteroid's subsurface, or mantle.
This sequence was taken with Hubble's Wide Field Planetary Camera 2
between November 28 and December 1, 1994, when Vesta was at a distance
of 156 million miles from Earth.
When combined with ground-based data, astronomers will be able to make
the first geochemical map of Vesta's surface.
Credit: B. Zellner (Georgia Southern University) and NASA