Ring Nebula - experimenting.

[Neil]

Hi All,

This is a crude image of the Ring Nebula in Lyra (Camera settings below).

https://flic.kr/p/Uv756e

178MM@Prime, 150PDS. There was significant amp glow on the bottom corners an top right, this has virtually gone thanks to the darks.

Only 2x67s exposures + 2 darks generated by Sharpcap, just to see how it works. I like the way the darks are organised into folders against camera, exposure, etc. Robin, Would it be possible to organise them according to temperature as well? It would be a fantastically easy way to build up a darks library on cloudy nights.

Camera settings:

[ZWO ASI178MM]
Pan=0
Tilt=0
Output Format=PNG files (*.png)
Binning=1
Capture Area=3096x2080
Colour Space=MONO8
Temperature=19.5
Hardware Binning=Off
High Speed Mode=Off
Turbo USB=60(Auto)
Flip=None
Frame Rate Limit=Maximum
Gain=389
Exposure=67.487064
Timestamp Frames=Off
Brightness=277
Gamma=8
Auto Exp Max Gain=319
Auto Exp Max Exp=30
Auto Exp Max Brightness=132
Apply Flat=None
Subtract Dark=None
Display Brightness=0.971830985915493
Display Contrast=3.25352112676056
Display Gamma=1.45492957746479

[admin]

Hi Neil,

nice image - glad the dark subtraction is working well for you

I did implement temperature subdivision in the darks folders and as far as I can see the code is still there - I will test with a ZWO camera later this evenng to see if anything has gone amiss.

cheers,

Robin