30.08.2021 AR2860 Worth the wait?

[Rusted]

The sky has been overcast or raining for days.
Struggling to post here at times. I thought I'd been banned!

First capture of AR2860: Early, mid and late morning.
To show the changes in this very active area.

Seeing quite transparent and fairly steady this morning.
Gone bad this afternoon. It might be better later.

 

[Peter Drew]

"Top drawer" results.      

[dweller25]

Truly excellent 👍

[Kitsunegari]

Wow your pictures have really raised the bar since i last checked on them

 

Great job,  I think you hit maximum improvement!    

 

 

My pst etalon is a dud even though its a pre-meade., I  cannot get a center spot image out of it unless i totally angle my camera for some reason; i think i need to decontact it and rotate the plates a bit.   Something is way off with mine.    Perhaps my aokswiss adapter is defective?

[Debo]

Stunning !!!

[Rusted]

9 hours ago, Kitsunegari said:

Wow your pictures have really raised the bar since i last checked on them

 

Great job,  I think you hit maximum improvement!   

My pst etalon is a dud even though its a pre-meade., I  cannot get a center spot image out of it unless i totally angle my camera for some reason; i think i need to decontact it and rotate the plates a bit.   Something is way off with mine.    Perhaps my aokswiss adapter is defective?

Thanks.   Probably just better seeing conditions.

I seriously doubt your AOK Swiss adapter can be the cause. 

My own PST etalon can be very frustrating in its on-band, sweet spot repeatability.
I believe it is down to rotation relative to my Lunt B1200S2 blocking filter and tilt.

I am presently "clocking" the B1200 "nameplate dimple" to match the focuser orientation.
The etalon doesn't rotate relative to the focuser.  So the focuser is an easier target.

Note that I am using a rubber band to pull the etalon into a tilt.
I have a rod screwed into the etalon inner circle. The rubber band pulls on that.
I rotate to tune the etalon and simultaneously tilt to darken the frame evenly.
The rubber band just maintains the tilt. Though it is still quite a fiddle.
I ought to make an etalon tilter plate but I am too busy at the moment.

I also have a Baader 1.25x binoviewer GPC right behind the etalon to spread the sweet spot.
The etalon holds the GPC in the AOK Swiss baffle. Which I had to open out a tiny bit in the lathe.
Almost no change in baffle opening. So it could be filed or sandpapered.
Wrap the paper around a suitable bit of dowel to make a smooth aperture.
Do not open up the AOK Swiss, rear adapter without remembering the GPC or it will fall right out!