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Equipment and exposition:
GSO RC 8" F/8 (1624mm)
ATIK 383L+ with Orion Nautilus Usb filter wheel, Baader Filters HA/O3 50,8
Guided with Starlight Lodestar with Orion OAG
Neq6 Geoptik Modded
HA : 15 X 600 Secs. bin 1x
O3 : 10 x 600 Sec.s (Each channel) bin 1x
Processed with PixInsight ,Maximdl,Photoshop CS4
SIte : Val Troncea, Pragelato 20/07/2011
About this object:
The Tulip Nebula, or Sharpless 101 (Sh2-101) or the Cygnus Star Cloud is an emission nebula located in the constellation Cygnus. It is so named because it appears to resemble the outline of a tulip when imaged photographically. It was catalogued by astronomer Stewart Sharpless in his 1959 catalog of nebulae. It lies at a distance of about 6,000 light-years (5.7×1016 km; 3.5×1016 mi) from Earth.
Complex and beautiful in visible light, the area also includes one of the brightest, most famous sources in the x-ray sky, Cygnus X-1. Discovered in the early 1970s, Cygnus X-1 is a bizarre binary system consisting of a massive, hot, supergiant star ) in close orbit with a stellar mass black hole. The Cygnus X-1 system is also estimated to lie a comfortable 8,000 light-years away.