Deep Sky SH2_184

[Tracy]

Just some old data from my first captures of SH2_184 with the William Optics EQ-35 Pro that I was always battling with to keep the RA/DEC tracking reasonable.
Very minimally processed in PixInSight.

 

[OhNo]

Not bad. Rather than a guiding issue I'd say you had a Focus issue. While I haven't seen you guiding numbers I can see the trailing isn't bad at all, but the focus looks soft seeing as the stars are fuzzy.

 

[Tracy]

Not bad. Rather than a guiding issue I'd say you had a Focus issue. While I haven't seen you guiding numbers I can see the trailing isn't bad at all, but the focus looks soft seeing as the stars are fuzzy.

I'm pretty sure those captures were during a period that StellarMate OS focuser was having some issues, that are supposedly now "fixed".
What I currently do is a manual focus after each filter capture run (well, not really manual, use the auto-focus then check it with the Bhat mask). I have found that the SHO runs are pretty much spot on with my red filter.