| Object: ngc891 in Andromeda Telescope: COMELLAS telescope (250 f/8.3 Newton). Lumicon 1.8x multiplier/corrector. Camera: Artemis ART4021. Astronomik IR & RGB filters. Exposures: L : 153 x 10' (25:30 total) R: 15 x 5' ( 1:15 ) G: 14 x 5' ( 1:10 ) B: 12 x 6' ( 1:12 ) Resolution: 0.72"/pixel Guiding: Moravian G0 on Off-Axis Guider Date: February 2018 Site: Sagan Observatory Las Rozas (Spain) - mag 4.5 suburban skies - |
Processing: Bias, Darks & Flat calibration Deconvolution Histogram & Curves adjustments LRGB combining Software: PixInSight |