[M18, Tim Hunter/Dan Krauss]

Open cluster M18 as photographed by Tim Hunter and Dan Kraus during their photographic Messier Marathon on March 19/20, 1988. This is a color film image taken with their 24.5-inch f/5 Newtonian of Grassland Observatory, located near Tucson, Arizona.

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    [M18, Jan Wisniewski]

    Jan Wisniewski obtained this color image of open cluster M18. It was taken on July 9 and 13, 1999 from Sooke, BC using Cookbook 245 LDC CCD camera on unguided Ultima 8 f6.3 telescope. It is composed of W (9 x 30 sec. and 2 x 1 min.), CY (5 x 30 sec.) and M (4 x 30 sec.) integrations processed with Multi245, AIP245, QColor as well as PhotoPaint 8.

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    Hartmut Frommert
    Christine Kronberg

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    Last Modification: September 26, 2001