Starry Vistas by Don J. McCrady
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Abell 78

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Abell 78 is the colourful remnant of a dying star that has shed its spent hydrogen and helium layers at the end of its life. The outer shell contains large amounts of ionized hydrogen, while the inner shell contains large amounts of helium. This very dim object is located in Cygnus.

I took this image using the equipment at the Mount Lemmon Sky Center, under the guidance of Adam Block.

24" RCOS Carbon Truss f/8
SBIG STL-11000M (self-guided)
Luminance: 150 minutes (15 minute exposures)
RGB: 100:80:80 (10 minute exposures)
Processed with Maxim/DL and Photoshop CS3
Noel Carboni's Astronomy Tools