NGC6791 Open Cluster in Lyra

(RA 19h 20.7m , Dec. +3751', 9.5 mag., 15' in diameter)


This rich open cluster looks actually quite like a globular. In a telescope, it is visible less than 1 SEE of q Lyrae (see finder chart below).

The above image was taken on September 17, 2001 from Harrowsmith, Ontario. Cookbook 245 LDC camera was used on Celestron Ultima 8 SCT with f3.0 focal reducer and the telescope was autoguided with Cookbook 211 LDC CCD camera on a piggybacked 500mm f8 telephoto lens. Sixteen white exposures (60 sec. each) were combined with cyan, magenta and yellow-filtered images (5 x 60 sec. each) using AIP4WIN software and the color image was furter adjusted in Lab color space with Corel PhotoPaint 8.

North is to the left of the image.


Map created in Guide 7.0 - 745' x 10. North is up.


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Jan Wisniewski