SharpCap Forums

Celestron C9.25 - HyperStar (Tilt Adjusted and Culminated) f/2.2 (525mm)
ZWO ASI533MC Pro - Brightness (Offset) 10, Gain 105 (Unity 100), Cooled to 0°C
Askar 50mm Guide Scope - ZWO ASI290mm Mini
PHD2 - 3 Second (New Dark Library) & Recent Calibration
SC - (ASTAP - Plate solve, Center, & Sync), Live Stack, Save All, Master Bias Flat = Yes, Master Dark = Yes
ASTAP - Preprocess Stack Analyze 30% Reject Rate, Stack to Master FITS
Siril - Background Extraction, Photometric Color Calibration, Green Noise Removal, StarNet Starless Master and Star Mask, Asinh & Histogram Stretch on Starless, Starless Saturation, StarNet Star Recomposition (Star Negative Stretch), Lighter touch on the Background Extraction and heavier on Star Mask.
Darktable - Copyright and minor contrast, export PNG

Let's see if the background holds up this time (JPG)

So cool to see the more southern hemisphere objects. Nice job
The less dark background indeed looks better here, there is more balance in the overall image.

Menno

Very nice. Only seen M17 myself once from here in the UK low down in the South -- and that visually from a dark sky site in south devon. Tim