I know it is off subject, I am curious, is every town called ....ville?

Alexandra

Well done for braving the heat it looks to be a lovely blue sky day outside

Alexandra

Great single stacks of the proms are you still having problems with the double?

Alexandra

:hamster: these are really great James :bow :hamster: do you see in the top image that you are on band on the left and not on the right, if you move the Sun to the left you will get the Sun on band all the way across. It doesn't matter that the Sun is not in the centre of the camera chip, you can cr...

Beautiful images are these at full aperture?

Alexandra

Thanks Andrew should be a good observing week for you

Alexandra

Absolutely beautiful, the SW prom is magnificent

Alexandra

These are really beautiful and I love the scale presentation it's good that you remember the spicule layer

Alexandra

Wow!! both are fabulous but the second really shows that even an area of spicules/mottles are incredible at this resolution

Alexandra

Very nice indeed I think with this heat it will have to be early and quick

Alexandra

Beautiful set! the prominence in the SW is a stunner

Alexandra

Super images Pedro

Alexandra

We had the exact same discussion here John a while a go https://solarchatforum.com/viewtopic.php?p=305246&hilit=white+light+continuum# I think the conclusion was that these filters were so broad at around +/- 8nm (80A) (like the Baader K line filter) or 10nm for Baader Continuum (100A) that they...

I would say balloon too, do you have a close up?

Great shots

Alexandra

Superb!! very nice processing and presentation

Alexandra

Very interesting!! the third link shows that h-beta is very similar to the wings of h-alpha (the offband image in h-alpha that they show). So I reckon it's height is between halpha and photosphere.

Alexandra

I tested myself and looked at the images first to draw my conclusions before reading your narrative, it was funny as I came to exactly the same conclusions as you did :) CaK is a definite winner in the proms, the disc is very close indeed but I felt there was just a slight more contrast in the filam...

Your discs are absolutely breath taking, your CaH makes my heart sing

I think Rainer uses a DS Coronado 60mm

Alexandra

Very nice, I saw a few aurora pics around the internet with this one I'm glad everything is still working well for you.

Alexandra

Fantastic images Douglas
Do you know what height in the chromosphere hydrogen beta is looking at?

Alexandra

You have definitely nailed the tuning of the Quark, it needs to be set at 5 clicks anticlockwise

Very nice to see the comparison

Alexandra

Thanks Andrew, nice to see what is going on outside glad to hear you managed a quick peek

Alexandra

Fantastic images Douglas, the Hbeta shows the magnetic disturbance around the active regions very well indeed. This is simply the best

Alexandra

Absolutely incredible, you have raised the bar so high with the SHG

Alexandra

A wonderful image and great first light with the new slit.

Alexandra