| Object: Ngc 2655, lenticular galaxy in Camelopardalis. 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 : 470 x 10' ( 78:20 ) R: 148 x 5' ( 12:20 ) G: 154 x 5' ( 12:50 ) B: 188 x 5' (15:40 ) Total: 119:10 hours Resolution: 0.49"/pixel. Luminance FWHM after integration: 2.2" Date: January - February 2022 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 (PixInSight): Bias, Dark & Flat calibration Local Normalization DBE NoiseXTerminator noise reduction Photometric Color Calibration Starnet for star masks Deconvolution Histogram stretching HDRMultiscale Transformation Color saturation adjustments Morphological Transformation stars reduction LocalHistogramEqualization Wavelet sharpening |