| Object:
ngc3893 in Ursa Major Telescope: COMELLAS telescope (250 f/8.3 Newton). Lumicon 1.8x multiplier/corrector. Camera: Artemis ART4021. IDAS LPS (L) & Astronomik (RGB) filters. Exposures: L : 67 x 600" ( 11:10 total) R: 8 x 900" ( 2:00 ) G: 10 x 900" ( 2:30 ) B: 10 x 900" ( 2:30 ) Resolution: 0.54"/pixel Guiding: MX716 on Off-Axis Guider Date: 20 Mar - 18 May 2009 Site: Sagan Observatory Las Rozas (Spain) - mag 4.5 suburban skies - |
Processing: Bias, Darks & Flat calibration 2x resample for drizzling Sigma clipping combining Deconvolution Curves adjusts LRGB combining ACDNR noise reduction Software: MaximDL, PixInSight |