Object: M101. the Pinwheel Galaxy in Ursa Maior Telescope: Sky-Watcher Esprit 80 triplet Apo & flattener (f/5 - 400mm). Camera: DSLR Canon 6D. Original IR filter replaced (Astrodon Inside). Exposures: 14 x 20' (4:40 h) Mount: Sky-Watcher AZ-EQ5 Guiding: Lacerta MGEN on 50mm finder Date: 21 April 2017 Site: Observatorio Rural Guadalajara (Spain) - mag 6.5 skies - |
Processing: Bias, Darks & Flat calibration Drizzle (2x) Registration and Sigma combining Color calibration HDR and Linear multiscale transform Curves and Histogram adjustment Software: PixInSight |