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Again Calar Alto proved favourably placed for Comet Shoemaker-Levy 9 observations: as many as five separate impacts were witnessed associated with the large Q fragments, more than just the two (Q1 and Q2) predicted. Three impacts were bright, with two fainter ones interspersed. It seems more reasonable to refer to it as the `Q family' now.
The first image shows Jupiter an hour before the impact of the Q fragments of comet Shoemaker-Levy 9. This infrared image was taken in the 1.7 micron methane band using MAGIC on the 3.5-m telescope at Calar Alto Observatory in Spain on 20 July, 1994.
The second image sl9_qanother.gif shows the Q1 fireball near maximum brightness outshining the previous impact site visible to the left. This infrared image was taken in the 1.7 micron methane band using MAGIC on the 3.5-m telescope at Calar Alto Observatory in Spain at 20:23 GMT on 20 July, 1994.
In the Q impact images, the Q fragments are impacting on the left hand limb of Jupiter, the actual impact site just out of sight over the limb. We are seeing the fireballs here appearing over the limb. Just to their right is the previous impact site of fragments G and D: clearly things are getting messy up there. The other bright spots on Jupiter are also previous impact sites, namely L near the middle, and a combination of K and P2 near the right edge: P2 was also observing impacting from Calar Alto, and is though to be the bright spot at the centre of the old site of K.
Observers at Calar Alto: Tom Herbst, Kurt Birkle, Ulrich Thiele (Max-Plack-Institut fuer Astronomie, Heidelberg, Germany) Doug Hamilton (Max-Plack-Institut fuer Kernphysik, Heidelberg, Germany) Hermann Boenhardt, Alex Fiedler, Karl-Heinz Mantel (Universitaets Sternwarte Muenchen, Germany) Jose Luis Ortiz (Instituto de Astrofisica de Andalucia, Granada, Spain) Giovanni Calamai, Andrea Richichi (Osservatorio di Arcetri, Firenze, Italy) Contact: Mark McCaughrean, Max-Planck-Institut fuer Astronomie Koenigstuhl 17, 69117 Heidelberg, Germany Phone: (49) 6221 528 303 FAX: (49) 6221 528 246 e-mail email@example.com (Internet)
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