Impacts A & E (& F not
visible) July 18 UT (July 17 EDT) (34k). This photo was obtained with
the IRAC 2B near-infrared instrument at the MPI/ESO 2.2-metre telescope on
July 18, 1994, 03:10 UT (05:10 CEST; 23:10 Chilean time). It shows the plumes
associated with the impacts of fragments A (below,left) and E (below, right)
of comet Shoemaker-Levy 9, as seen at a wavelength of 2.1 micron. On this
photo, the plume of the F-impact (to the right of the E-plume, under the Great
Red Spot in the middle) is too faint to be well seen. The A-plume has just
completed its fourth rotation since it was created by the impact of the A-fragment
in the evening of July 16. The astronomers are surprised by the apparently
long life of these new features.
H-fragment impact plume(2.2 megs).Dramatic
Impact of H-Fragment Observed At La Silla. This sequence of nine images
was obtained with the TIMMI instrument at the ESO 3.6 metre telescope on
July 18, 1994, between 19:29 and 20:15 UT. They show the spectacular development
of the rising plume above the impact site of fragment H of comet Shoemaker-Levy
9. The images were made in the 9.1 - 10.4 micron band in the far-infrared
region.
The surface brightness of this plume at its peak was about 50 times that of the Jupiter disk. The temperature was measured as more than 300K. The other bright feature on the disk is the plume from the G-impact which took place 12 hours earlier, corresponding to approximately 1 1/4 rotations.
ESO PR Photo SL9J/94-14. Reproduction okay if credit given to ESO.