SH2-101 - Tulip Nebula  
Cygnus

Emission nebula located in the constellation of Cygnus, close to Cygnus-X1 black hole.		  
 
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.

The Tulip nebula, at least in the field seen from earth, is in close proximity to microquasar Cygnus X-1, site of one of the first suspected black holes.
  
 
Technical details:  
Location:  
 Soria - Spain
Date:  
 30/07/2011 (dd/mm/yyyy)
Conditions:  
 Good
Temperature:  
 LowºC
Humidity:  
 Low
 
Telescope:  
 GSO Reflector 200mm f/4
Reducer/corrector:  
 Baader MPCC
Filter:  
 Astronomik CLS 1.25"
Mount:  
 Vixen GPD2 Autostar Meade
Camera:  
 Atik 314L+
Exposure:  
 6x700s Ha; 10x300s S2; 17x300s O3
Guiding tube:  
 B&C 60/350 f7
Guiding camera:  
 Meade DSI Pro
Guiding software:  
 PHD Guiding
 
Procesing:  
 Standard SHO procesing. R=0.5*Ha+0.5*S2; G=0.15*Ha+0.85*O3; B=O3  
Notes:  
  
     

 
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