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1994-08-16
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Hubble Space Telescope View of Comet Fragment G Impact Zone
This image shows the impact zone on Jupiter of fragment G of Comet
Shoemaker-Levy 9. The image was made in green light with the Planetary Camera
channel of the Wide Field Planetary Camera 2 (WFPC2). Data for the image were
obtained in the early morning hours of July 18, 1994.
The impact site is visible as a complex pattern of circles seen in the lower
left of the partial planet image. The small dark feature to the left of the
pattern of circles is the impact site of fragment D. The dark, sharp ring at
the site of the fragment G impact is 80% of the size of the Earth.
Comet Shoemaker-Levy 9 broke up into 21 fragments during a close passage by
Jupiter in July of 1992. Fragment G was one of the brightest and likely the
largest of the 21 fragments. Fragments A-H have impacted the planet. Remaining
fragments will continue to impact Jupiter through July 22, 1994. Pre-encounter
estimates of the energy of the combined impacts are highly uncertain, and range
up to that of a million hydrogen bombs (a million megatons of TNT).
Jupiter was approximately 477 million miles (767 million kilometers) from Earth
when the image was taken.
Credit: Dr. Heidi Hammel, Massachusetts Institute of Technology, NASA HST.
Hubble Space Telescope Science Institute
3700 San Martin Drive
Baltimore, MD 21218
(410) 338-4707