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Photographer:

Guenther Neue

Email:

guenther.neue@t-online.de

Location of Photo:

Dortmund, Germany

Date/Time of photo:

Dec 29, 2007, 16:45-17:05 UT

Equipment:

Nikon Coolpix 885 at f/2.8

Description:

The two comets 17P/Holmes and 8P/Tuttle now show roughly similar brightness per unit area. But due to its sheer size Holmes is still a faint naked-eye object at my suburban location. It should be observed that Holmes is almost eight times more distant than Tuttle. The limiting magnitude of the composite of ten guided 8-second exposures is about 7.0. It should be remarked that the frame also contains the position of a third comet accessible to amateurs slighty above the middle of a line joining the two depicted comets: 50P/Arend at magnitude 14-15.

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