2ND ATTEMPT
For my second image I chose the same target to see if I could improve with what I learned the other night. Switched from 10min subs to 3min subs and changed my workflow in Siril … still can’t get FDBs to work and Starnet won’t load …
The details:
RGB 50 x 3 minute
Scope: Skywatcher Evostar 100ED
Camera: ZWO ASI535MC AIR (guide & main)
Mount: Skywatcher EQ-AL55i
Issues:
I DID take Darks after the session … but for some reason I can’t find them on the asi air … still solving that mystery.
Star removal still isn’t working with Siril.
I wanted to capture more data … but at 2.5 hours I encounter my first meridian flip which didn’t go well so I called it a night with my 50 good subs.
Had some tracking issues (lost the Star a few times).
I cleaned the whole imaging train using a hand air thing and lens brush. This seemed to get rid of a lot of the dark spots in my first image.
The glow from Alnitak in the upper right was annoying but I couldn’t figure out how to get rid of it.
Workflow: (all done in Siril on a MacBook Pro)
Plate solve
Color calibration
Background extraction
Histogram stretch
Curve stretch
Pour a whiskey
Desaturate stars
Denoise
Color edits
More Histogram experimenting
(Redo the whole thing 3 times)
I chose this framing so I could use it as a lock screen on my iPhone and I’m pleased with it 🙂
Thanks everyone for the tips! The clouds look like they returning tonight, so I’ll just have this data to play with for the next week … or month.
by BDA_Cosmos