| Object: WR134 nebula, variable Wolf-Rayet star with a huge envelope
of Hydrogen and Oxygen bubble in Cygnus. Telescope: Halpha & Oiii: Astrograph 400 f/4 Newton. Paramount ME. ASI 6200 MM cmos. Chroma Ha & Oiii filters. Color: Astrograph 250 f/4 Newton. Paramount ME. ATIK 16200 ccd. Chroma RGB filters Exposures: Ha : 70 x 20' ( 23:20 ) Oiii: 115 x 20' ( 38:20 ) R: 20 x 5' ( 1:40 ) G: 20 x 5' ( 1:40 ) B: 20 x 5' ( 1:40 ) Total: 66:40 hours Resolution: 0.58"/pixel. Luminance FWHM after integration: 2.1" Date: August - September 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 SpectroPhotometric Color Calibration Starnetv2 for star masks Histogram stretching Color saturation adjustments Morphological Transformation stars reduction LocalHistogramEqualization |