Observation of Impact Sites of Shoemaker-Levy 9 Comet

Astronomy and Astrophysics – Astronomy

Scientific paper

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Scientific paper

We observed impact spots on Jupiter which were formed by the collision with fragments of Shoemaker-Levy 9 comet during the period from 17 July to 13 August, by using the SNU 61cm reflector combined with CCD camera and UBVRI filters. In order to get more clear image of impact spots, the observed data were processed by the unsharp masking method, high-pass filtering method and Richardson-Lucy algorithm after the basic processing through IRAF package. The sizes of impact spots range from 2000km to 4000km, and from this size, the original size of comet fragments before collision with Jupiter is estimated to be less than ~3km. From the observed rotating rate of impact spots, the rotational period of Jupiter is determined as 9h 56m 32s at the southern latitude of 47deg~49deg.

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