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adefgh.txt
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1994-07-20
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A trail of impact sites
An image of Jupiter taken from the Calar Alto 3.5 meter telescope on at 22:45
GMT on July 18 1994, a few hours after the impact of Fragment H from
Comet Shoemaker-Levy 9. The image was taken in the infrared at a
wavelength of 1.7 microns in order to enhance the contrast between Jupiter
and the impact sites. The bright object just off Jupiter's disk to the upper right
is the satellite Ganymede, the large oval near the center is the Great Red
Spot, and each of the six fainter blobs near the bottom of the image are
impact sites. From right to left, the spots are: G2, D4, H1, F3, E4, A6 where
the letter refers to the impacting fragment and the number refers to the
number of times the impact site has rotated into view (i.e. F3 has appeared
on the Earth-facing side of Jupiter for the third time). Two pairs of spots (G2,
D4 and F3, E4) lie close together. Jupiter rotates once in approximately 10
hours. By the end of this week (22 July), there should be fifteen to twenty
such spots encircling Jupiter's southern hemisphere like a string of pearls.
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 mjm@mpia-hd.mpg.de (Internet)