Blinking Planetary Nebula (NGC6826) in Cygnus
(RA 19h 44.8m , Dec. +50°31', 8.8 mag., >25" in diameter)
This bright planetary nebula is visible in a 8x50 finder as a "star" about 5° SE of k Cygni (see finder chart below).
The above image was taken on October 23, 2000 from Harrowsmith, Ontario. Cookbook 245 LDC camera was used on Celestron Ultima 8 SCT with an eyepiece projection to achieve f20. White exposures (10 x 60 sec.) were combined with cyan, magenta and yellow-filtered images (3 x 30 sec. , 3 x 30 sec. and 4 x 30 sec., respectively) using AIP4WIN software and the image was furter adjusted using Lab color space with Corel PhotoPaint 8.
Only a quater of the original Cookbook frame is shown. North is to the left.
Map created in Guide 7.0 - 7°45' x 7°45'. North is up.
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© Jan Wisniewski