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Pic du Midi Observatory Image of Comet Hale-Bopp


Observers: Cyril Birnbaum, Eric Frappa, Francois Colas
Location: Pic du Midi Observatory, France
Date: March 30, 1997 20:30 UT

Large scale structures, March 30th

This image is the sum of 150 images taken with the 55 cm telescope. Each individual frame is a 4 second exposure with a R filter. The nucleus region is widely saturated, the goal of the observation is to show the large scale structure of the coma in connection with the small field but high resolution images of the 105 centimeter telescope. We can see a link between the dust shells of the internal coma and the "synchronic bands" in the dust tail. The image is enhanced with laplacian filter. The median time of the exposures is March 30th, 20h30 UT.

Contact: Francois Colas (

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