NGC 6946/6939 (Cyg/Cep)

NGC 6946/6939 (Cyg/Cep)

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Date/Site: September 21., 2006, AAR-observatory in Presberg
Exposure/
Filter:
7 x 10 minutes
Camera: Canon EOS 300D
Optics/
Instrument:
4"-TMB-refractor on the Gemini 41-Field mount of the AAR
focusing by hand through a right angle viewer of the camera
webcam-guiding with MaximDSLR through a 4"-FH-refractor
darks: Fitswork,
aligning and stacking: Regim,
levels and curves: Photoshop CS

 

© Friedhelm Hübner, last revision:  20.08.2022