Observer: Alessandro Dimai
Location: Col Druscie Observatory, Cortina d'Ampezzo, Italy
Date: March 20, 1997
Two images of the comet Hale Bopp taken on March 20 with a Tele 300 mm f/2.8, exp. 4' (Kodak Express Gold 400 II hyper.) from Col Druscie Observatory and another with a 35 mm f/2,8 lens, exp. 10" with the Cortina's lights . The author is: Alessandro Dimai (Astronomical Association of Cortina) The comet was of magnitude -0,7 with a naked eye visible ion tail of ~16 deg. and a diffuse dust tail of ~10 deg.
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