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NGC 6946/6939 (Cyg/Cep)
Click on the image for a larger version
| 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 |
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© Friedhelm Hübner, last revision: 20.08.2022