The Medusa Nebula in Gemini - Sh2-274

Imaged from Nova Scotia, Winter/Spring 2017

 

 

 

 

 

 

Data
Altitude at culmination 59
Minimum Airmass Value (sec z) 1.2
Mean FWHM 3.1 arc-s
Taking Camera SBIG STL-11002XM Nova Scotia Winter/Spring 2017, ~mag 6.4 - @-20C
Imaging OTA AGO 14.5" iDK
Equivalent focal length and ratio 2465mm @ f/6.7
Mount Astro-Physics 1600GTO
Guiding PHD2/ONAG/Lodestar X-2
HaRGB Total Integration Time 11hrs 30mins R12x10 min, G12x10 min, B12x10 min, Ha-11x30min,Astrodon Gen 2 I series and 5nm Ha Filters. All Binned 1X1
Acquisition Main Sequence Software-Sequence Generator Pro
Calibration and Stacking Darks, Flats and Bias - Stacked and calibrated with PixInsight
Processed PixInsight, Adobe Photoshop CS4 and Bob Franke's CCDBand-Aid

 

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