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Nebulosity around Sadr

20:09 22/8/2008 UTC

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This image is centered on Sadr (Gamma Cygni) which is the center star of constellation Cygnus. There is lots of nebulosity around it. Most notable and obvious feature is IC1318, The Butterfly Nebula in the left side of the frame. IC1318 is not associated with Sadr, they just happen to be at the same direction. The nebula is believed to be at least twice as far at 3000 light years from earth. There is also a nice open cluster NGC6910 up from the Sadr.

NGC/IC Object List:
NGC6910 open cluster RA:20h23m12.0 Dec:+40°46m'43" BMag: , OCL 181
IC1318 gaseous nebula RA:20h22m12.0 Dec:+40°15m'24" BMag: , LBN 245 Gamma Cyg Nebula

2008.08.22-20h09m-sadr-nebulosity.jpg

[High Resolution : 1600x1067 410kB]

Camera: Modified Canon EOS 350D (Rebel XT) | Telescope: Skywatcher ED80 Pro 80mm f7.5 refractor, William Optics 0.8x focal reducer | Mount: Vixen GP-D2, Boxdoerfer PowerFlex MTS-3SLP drive controller | Filters: Astronomik H-alpha 13nm 2", Astronomik EOS L UV/IR Insert Filter | Guiding: The Imaging Source DMK 21AU04.AS CCD camera, Orion ShortTube 80mm f5 refractor, Stark-Labs PHD Guiding | Exposure: 11x600s (1h50m) ISO800 f6, 16 darks, 13 flats, 0 bias | Software: Stark-Labs Nebulosity 2 | Location: 60°31'N 26°52'E (Koivula/Kotka,FI) | Moon illumination 63% | Kuun korkeus +12° | Target altitude in the beginning of the exposure 70°

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Added: 07:10 23/8/2008 UTC