| Object: Abell
82, planetary nebula in Cassiopeia Telescope: COMELLAS telescope (250 f/8.3 Newton). Lumicon 1.8x multiplier/corrector. Camera: Artemis ART4021. Baader H-alfa & O-III filters. Exposures: Ha : 31 x 30' (15:30 total) Oiii: 15 x 30'' ( 7:30 - a waste of time!) Resolution: 0.72"/pixel Guiding: MX716 on Off-Axis Guider Date: November 2017 Site: Sagan Observatory Las Rozas (Spain) - mag 4.5 suburban skies - |
Processing: Bias, Darks & Flat calibration Sigma combining MultiScaleLinearTransform Histogram & Curves adjustments LRGB combining Software: PixInSight |