M18 = NGC6613 ( 18h 19.9m -1708, 6.9 mag. )

This sparse open cluster in Sagittarius was found by Messier on June 3, 1764. M18 is about 4,000 ly distant. It is visible in binoculars about 1 SSW of Swan Nebula (M17 - see finder chart below).

The above image was taken on July 9 and 13, 1999 from Sooke, BC. Cookbook 245 LDC CCD camera was used on Ultima 8 f6.3 telescope. Nine white exposures (30 sec. each) as well as cyan, magenta and yellow-filtered integrations (5 x 30 sec., 4 x 30 sec. and 5 x 30 sec., respectively) were combined with AIP4WIN and adjusted in Lab color space using Corel PhotoPaint 8.

North is to the right.

Map created in Guide 7.0 - 745' x 745'. North is up.

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Messier List

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Jan Wisniewski