ETA quickie

[peter_4059]

Still tinkering with the SN10. Managed to capture some subs last week when the weather cleared for a few days. Still not quite there but I'm hoping to make some progress this weekend.

Comments welcome.

[DavidTrap]

Looks pretty good Peter.

Are you happy with your focus?

DT

[peter_4059]

Thanks for the feedback David.

I was happy with the focus when I initially focused the scope with the Bahtinov mask however I've been having some issues getting the autofocus to deliver consistent results. I'm getting lower FWHM numbers on some of the better subs than I got on the stacked image so I've still got some work to do on this. I suspect this is going to be a real challenge with this optical system.

I'm more concerned with the star shape in the top left of the image so more to do there. I'm planning to reinforce the focuser area of the OTA this weekend as I believe there has been some flex there. After that I need to decide whether the primary cell is going to be satisfactory. After that I need to determine of the corrector (MPCC or Paracorr) spacing is right.

I've still got a lot to learn about Pixinsight too - in particular I want to better understand how to get the best out of the integration steps.

Peter

[DavidTrap]

Lots to attend to!

I'm sure Rick would be your best source on PI tips. If I get a spare moment, I'll send you some of my notes that I jotted down when I did a PI session with him last year.

DT

[peter_4059]

Thanks. That would be great if you have any tips.

[RickS]

Good to see you capturing data again, Peter!

I'm working on a venue for a PI workshop on 11 July. Happy to help out informally in the meantime but I'm pretty busy with work stuff and travel until end of June.

Cheers,
Rick.

[ozstronomer]

Peter, looks like its coming together.

Shame about the slightly triangular stars, hopefully strengthening the focuser will help.

Cheers Geoff

[peter_4059]

Update - I've been playing with Pixinsight this weekend and have worked through a number of tutorials on processing steps. So much to learn and so many settings. This is the same data only this one is entirely processed in Pixinsight - the first time I've managed to do this and also the first time I've employed a number of the modules. Processing workflow was based on this tutorial: http://www.radice.biz/articoli/translations/73-pi-processingexamplem8-eng

Here is a link to the full res version:
http://astrob.in/full/186876/0/