SharpCap Forums

Alnitak with NGC2024 + IC434. Full image here https://www.astrobin.com/372374/?nc=user

• Atik 314E mono CCD, Altair 66ED refractor, Celestron AVX mount, Ha 7nm filter.

• 9x600s lights + 7 darks.

• Unguided - mount align via polar scope, 2 alignment + 4 calibration stars, All Star Polar Align to finalise.

• Focus via Bahtinov Mask.

• SharpCap 3.2 + Atik ASCOM drivers, FITS Liberator, Siril 0.9.9, GIMP 2.10

• To calibrate, register & stack took 2 minutes in Siril.

• In GIMP, a 3 point 'S' shape curve was applied and the contrast adjusted.

Dave

[Atik Camera]
Debayer Preview=Off
Binning=1x1
Capture Area=1391x1039
Colour Space=MONO16
Output Format=FITS files (*.fits)
Pan=0
Tilt=0
Frame Rate Limit=Maximum
Exposure=600
Cooler=On
Actual Temperature=0
Heat Sink Temperature=0
Timestamp Frames=Off
Banding Threshold=35
Banding Suppression=0
Apply Flat=None
Subtract Dark=None
#Black Point
Display Black Point=0.00390625
#MidTone Point
Display MidTone Point=0.0164936331988277
#White Point
Display White Point=0.587890625
TimeStamp=2018-10-18T02:48:35.7734678Z
SharpCapVersion=3.2.5781.0

Amazing!

What would it look like if you made it shades of red instead of shades of gray?

Brian

Cheers Brian. RGB will arrive sometime soon I suppose.

Dave

Found this old data doing a disk tidy - 10x600s unguided with an Ha filter. Reprocessed with Astro Pixel Processor and Neat Image. Time I put some effort into getting guiding working.



Dave

Absolutely amazing, it's unguided, and that was before the HyperTune! My tracking becomes worse the closer I get to the celestial equator. I'm almost glad that trees block my view of Orion.

Brian

Thanks Brian. I think I got away with it because:

• the ED66 scope only weighs about 2kg

• the elevation was around 35°

• the scope and counterweight were fairly horizontal, which sat nicely on the mount's gears

Processing was quick and simple, I remember struggling with this back in 2018 - some improvement there then.

Dave