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- PHOTO RELEASE NO.: STScI-PR94-26a FOR RELEASE: July 7, 1994
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- PHOTO ILLUSTRATION OF COMET P/SHOEMAKER-LEVY 9 & PLANET JUPITER
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- This is a composite photo, assembled from separate images of Jupiter and comet
- P/Shoemaker-Levy 9, as imaged by the Wide Field & Planetary Camera-2
- (WFPC-2), aboard NASA's Hubble Space Telescope (HST).
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- Jupiter was imaged on May 18, 1994, when the giant planet was at a distance of
- 420 million miles (670 million km) from Earth. This "true-color" picture was
- assembled from separate HST exposures in red, blue, and green light. Jupiter's
- rotation between exposures creates the blue and red fringe on either side of
- the disk. HST can resolve details in Jupiter's magnificent cloud belts and
- zones as small as 200 miles (320 km) across (wide field mode). This detailed
- view is only surpassed by images from spacecraft that have traveled to Jupiter.
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- The dark spot on the disk of Jupiter is the shadow of the inner moon Io. This
- volcanic moon appears as an orange and yellow disk just to the upper right of
- the shadow. Though Io is approximately the size of Earth's Moon (but 2,000
- times farther away), HST can resolve surface details.
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- When the comet was observed on May 17, its train of 21 icy fragments
- stretched across 710 thousand miles (1.1 million km) of space, or 3 times the
- distance between Earth and the Moon. This required six WFPC exposures along
- the comet train to include all the nuclei. The image was taken in red light.
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- The apparent angular size of Jupiter relative to the comet, and its angular
- separation from the comet when the images were taken, have been modified for
- illustration purposes.
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- Credit: H.A. Weaver, T.E. Smith (Space Telescope
- Science Institute) and J.T. Trauger, R.W. Evans
- (Jet Propulsion Laboratory), and NASA
-