| Object: Ngc
7331 & Deer Lick group, galaxies in Pegasus. Telescope: Luminance: Astrograph 400 f/4 Newton. 3" 1.15x coma corrector up to 1850mm fl). Paramount ME. ASI 6200 MM cmos. Chroma L filter. Color: Astrograph 250 f/4 Newton. Paramount ME. ATIK 16200. Chroma RGB filters Exposures: L : 220 x 10' ( 36:40 ) R: 56 x 5' ( 4:40 ) G: 42 x 5' ( 3:30 ) B: 69 x 5' ( 5:45 ) Total: 50:35 hours Resolution: 0.55"/pixel. L FWHM after integration: 2.4" Date: July - December 2020 Site: Luminance: Sagan Observatory Las Rozas (Spain) - mag 4.5 suburban skies - Color: La Sagra Observatory Puebla de Don Fadrique (Spain) - mag 7 professional observatory skies - |
Processing: Bias, Darks & Flat calibration DBE Photometric Color Calibration Deconvolution Histogram & Curves adjustments (intensity, saturation) Noise reduction: ACDNR Software: PixInSight |