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Observer: Udo Zlender
Location: Bonn, Germany
Date: April 1, 1997 19:53 UT
These three ccd-images of comet Hale-Bopp were made at the prime focus of a Celestron C11 at 19:53 UT. Camera was OES LcCCD14 in high resolution mode (772 x 580 pixels), exp. time was 5 seconds, no filters were used. The pictures are a combination of 7 images which were dark subtracted, flat fielded, registered and median combined. In this sequence I try to get some deeper insight into the dense nuclear surroundings. Starting with image 1, which is in false color, a next image is obtained by the Larson-Sekanina algorithm (18 deg) showing complex radial details. The last one was obtained by superimposing image number 1 by a grey scaled version of the second image.
Udo Zlender
E-mail: zlender@viswiz.gmd.de