| Object: M104, the Sombrero Galaxy in Virgo. Telescope: Astrograph 250 f/4 Newton . Paramount ME. Atik 16200 ccd. Filters: Chroma LRGB. Exposures: L : 159 x 5' (13:15 ) R: 26 x 5' ( 2:10 ) G: 26 x 5' ( 2:10 ) B: 26 x 5' ( 2:10 ) Total: 19:45 hours Resolution: 0.7"/pixel. Luminance FWHM after integration: 2.9" Date: March 2022 - June 2023 Site: La Sagra Observatory Puebla de Don Fadrique (Spain) - mag 7 professional observatory skies - |
Processing: Bias, Dark & Flat calibration DBE SpectroPhotometric Color Calibration MLT linear noise reduction BlurXTerminator Histogram stretching Starnetv2 for star masks Color saturation adjustments ACDNR noise reduction Software: PixInSight |