Planetary Nebula NGC6781 in Aquila
(RA 19h 18.4m , Dec. +6° 33', 11.4 mag., >109" in diameter)
This large annular planetary nebula is located about 4° NNW of d Aquilae (see finder chart below).
The above image was taken on July 13 and 14, 2002 from Harrowsmith, Ontario. Cookbook 245 LDC camera was used on Celestron Ultima 8 SCT at f6.3 autoguided with Cookbook 211 LDC camera attached to a 500mm f8 guidescope. Ten white exposures (240 sec. each) were combined with cyan, magenta and yellow-filtered images (5 x 240 sec. each) using AIP4WIN software, then the image was furter adjusted using Lab color space with Corel PhotoPaint 8.
North is to the right.
Map created in Guide 7.0 - 7°45' x 7°45'. North is up.
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© Jan Wisniewski