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Messier 44 - the Beehive cluster

(click on the image for the highest resolution)


Object:             Messier 44. Open cluster  in Cancer
Telescope:       Sky-Watcher Esprit 80 triplet Apo & flattener (f/5 - 400mm).
Camera:           DSLR Canon 6D. Original IR filter replaced (Astrodon Inside).
Exposures:       11x 15' , 4x20" (2:45 h)
Mount:              Sky-Watcher AZ-EQ5          
Guiding:            Moravian G1-2000 ccd on 50mm finder
Date:                 December  2019
Site:                  Observatorio de La Sagra  Granada (Spain) 
Bias, Darks & Flat calibration
Sigma combining
Dynamic Background Extraction
Photometric Color Calibration
Masked stretch

Curves and Histogram adjustments