Henize 1 - 4 Planetary Nebula in Cygnus

(the diameter is less than 22 arc-seconds with a central star of 21,1 mag.)
 


 

Exposure Data: 06.07.2003. L=3x10min. (2x2), compl. 1/2 hour. 
 
Processing: Acquired via MSB AstroArt, no darks+flats, Sigma combined, RL-deconvolved in AIP4Win, registered in RegiStar, processed in Photoshop and Neat Image.
 
Optical System: 348/3007mm Hypergraph-Cassegrain, Starlight Xpress SXV-H9, Astronomik Filter wheel FR-03, Type II.b-L-Filter, Astro-Physics 1200 ESCAP-FS-2-GoTo. Off-axis guided with Starlight Xpress MX 516 without AO7.
 
Comments: Average FWHM was 1,6 arc-seconds! Top seeing and transparency - the best conditions ever! Picture upsampled 15%.
 
Author: Michael Breite
 

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