New spots, new observations on june 8th

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Phil Rousselle
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New spots, new observations on june 8th

Post by Phil Rousselle » Tue Jun 09, 2020 5:56 pm

Hi from France
A little group of sunspots is now crossing the solar disk
It's a good reason to install my SHG and take images
here is a set of SHGrams in Ca-K3 and H alpha lines. I hope that solar activity will increase a little bit
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Re: New spots, new observations on june 8th

Post by p_zetner » Wed Jun 10, 2020 2:06 am

Hello Phil.
It’s a pleasure to see your images here. Beautiful spectroheliograms!
All the best.
Peter



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Re: New spots, new observations on june 8th

Post by Wah » Wed Jun 10, 2020 3:22 am

Excellent and sharp images!
How do you manage to tune the focus of the telescope, I wonder?



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Re: New spots, new observations on june 8th

Post by highfnum » Wed Jun 10, 2020 4:14 am

very well done as usual



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Re: New spots, new observations on june 8th

Post by Montana » Wed Jun 10, 2020 7:12 am

Wow!! these are absolutely magnificent!! well done :bow :bow to see the filament in CaK is magic in itself :hamster:

Alexandra



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Re: New spots, new observations on june 8th

Post by Phil Rousselle » Wed Jun 10, 2020 9:47 am

Thank you Peter, Wah, Highfnum and Alexandra

Wah, the focusing is not very easy because of my strange mechanism. The main lens does not move (it would be more simple) so several parts are tunable : the slit, collimator and camera lenses and camera or eyepiece
I use some kind of ruler to adjust parts at the good place. Sometime it woks



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