Observer: The Isaac Newton Group of Telescopes
Location: Roque de Los Muchachos Observatory, La Palma, Spain
Date: April 1, 1997 20:33 UT
The first picture is the sum of four 120s exposures using a narrow band filter centered at 618 nanometers. It's 11.2\12711.4 degrees and it was taken from 20:33 UT. Note how the dust tail is curved.
The second picture is the sum of four 120s exposures using a narrow band filter centered at 555 nanometers. The ion tail isn't visible because the 555nm filter is used to observe the molecule C2.
Javier Mendez Alvarez
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