M10 = NGC6254 ( 16h 57.1m -4°06´, 6.6 mag )


Discovered by Messier on May 29, 1764, this impresive globular cluster in Ophiuchus is approx. 14,300 ly away and measures 84 ly across. Binoculars will reveal it less than 1° W of 30 Ophiuchi (see finder chart below).

The above image was taken on July 11, 1999 from Sooke, BC. Cookbook 245 LDC CCD camera was used on Ultima 8 f6.3 telescope autoguided with Cookbook 211 LDC CCD camera on piggybacked 500mm f8 telephoto lens. This image is composed of cyan, magenta and yellow-filtered integrations (4 x 120 sec. each) processed with AIP4WIN and adjusted in Lab color space using Corel PhotoPaint 8.

North is to the right.


Map created in Guide 7.0 - 7°45' x 10°. North is up.


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© Jan Wisniewski