NGC 6822 (Sgr)

NGC 6822 (Sgr)

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Date/Site: August 24th, 2011, Rifugio Monte Muro, Maurerberg, Southern Tyrol
Exposure/
Filter:
R: 3 x 600 seconds, G: 3 x 600 seconds, B: 3 x 600 seconds (-15°C)
Camera: SBIG ST10XME, CFW9 with SBIG LRGB-filters, AO-8
Optics/
Instrument:
6"-Newton on Gemini 41 Observatory mount, RCC1 Coma-corrector
Focusing with Robofocus
Calibration, alignment and stacking: MaximDL 5.01,
Levels and curves: Photoshop CS

Minor planet (689) Zita at 14,4 mag crossed the galaxy during the exposures.
 
Compare this view with the shot with my Canon 350Da from the same location, only some years earlier:

NGC 6822, Barnard's Galaxy (Sgr)

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Date/Site: September 13th, 2007, Rifugio Monte Muro, Maurerberg, Southern Tyrol
Exposure/
Filter:
10 x 6 minutes
Camera: Canon EOS 300Da
Optics/
Instrument:
6"-Newton on Gemini 41 Observatory mount, Baader-coma-corrector
Focusing with RoboFocus and DSLR Focus
webcam-guiding with MaximDSLR through 4"-FH-refractor
Darks: Fitswork,
aligning and stacking: MaximDSLR,
levels and curves: Photoshop CS

 

© Friedhelm Hübner, last revision:  03.12.2023