| Object: Simeis
147 (Sh2-240), the Spaghetti Nebula. Supernova remnant in Taurus. Telescope: Samyang 135 @ f/2.7. Paramount ME. Artemis 4021 ccd. Filters: Baader HORGB. Exposures: H : 289 x 5' (24:05 ) O: 47 x 5' ( 3:55 ) R: 30 x 2' ( 1:00 ) G: 30 x 2' ( 1:00 ) B: 30 x 2' ( 1:00 ) Total: 31:00 hours Resolution: 5.65"/pixel (2x drizzle from original 11.3"/px). Date: January - February 2022 Site: La Sagra Observatory Puebla de Don Fadrique (Spain) - mag 7 professional observatory skies - |
Processing: Bias, Dark & Flat calibration 2x Drizzle Integration Photometric Color calibration MLT linear noise reduction Histogram stretching Starnet for star masks Color saturation adjustments MorphologicalTransformation stars reduction Wavelet sharpening Software: PixInSight |