M80 = NGC6093 ( 16h 17.0m -2259, 7.2 mag. )

This very concentrated globular cluster in Scorpius was discovered by Messier and Mechain in January 1781. About 27,000 ly distant, it measures 50 ly across. Nova T Scorpii exploded in this cluster in 1860. M80 is detectable in binoculars 250' NNW of Antares (a Scorpii - see finder chart below).

The above image was taken on June 3, 2002 from Harrowsmith , Ontario using Cookbook 245 LDC CCD camera on Celestron Ultima 8 f6.3 telescope. Seventeen white integrations (30 sec. each) as well as cyan, magenta and yellow-filtered integrations (6 or 5 x 30 sec. each) were processed 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 10. North is up.

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Jan Wisniewski