| Object: The Veil nebula, supernova remnant in Cygnus. Telescopes: Luminance & Color: Astrograph 250 f/4 Newton. Paramount ME. ATIK 16200 ccd. Baader Halpha & Oiii; Chroma RGB filters. Background gradient correction: Samyang 135 @ f/2.7. Artemis 4021 ccd. Filters: Baader Halpha & Oiii, Exposures: 12 frames mosaic Exposures: Ha : 696 x 400" ( 77:20 ) Oiii: 456 x 400" ( 50:40 ) R: 132 x 5' ( 11:00 ) G: 132 x 5' ( 11:00 ) B: 132 x 5' ( 11:00 ) Total: 161:00 hours Resolution: 1.4"/pixel. Date: July 2021 - August 2022 Site: La Sagra Observatory Puebla de Don Fadrique (Spain) - mag 7 professional observatory skies - |
Processing (PixInSight): Luminance & nebula color: Halpha,Oiii channels. Stars color: RGB Bias, Dark & Flat calibration Multiscale Gradient Correction Photometric Color Calibration Photometric Mosaic Starnet2 Deconvolution Histogram stretching HDRMultiscale Transformation Color saturation adjustments Morphological Transformation stars reduction |