M7 = NGC6475 (17h 53.9m -34°49´, 3.3 mag. )
M7 is visible with a naked eye on the backdrop of Milky Way about 4°30' NE of l Scorpii (see finder chart below). It contains 80 stars brighter then magnitude 10 and measures about 50' across. The intricate network of dark nebulae behind this cluster constitutes interesting view in rich field telescope.
The above image was taken on June 3, 2002 from Harrowsmith , Ontario using Cookbook 245 LDC CCD camera on Celestron Ultima 8 f3.0 telescope. This mosaic is composed of four "tiles" (each assembled from 5 x 30 sec. white exposures) processed with AIP4WIN and combined using Corel PhotoPaint 8.
North is to the right. This image was reduced to 60% of the original.
Map created in Guide 7.0 - 7°45' x 7°45'. North is up.
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© Jan Wisniewski