22 Nov 2020 a lot of activity in WL & Ha

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Fabio_Imm
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22 Nov 2020 a lot of activity in WL & Ha

Post by Fabio_Imm » Sun Nov 22, 2020 10:25 am

Hello,
There's a lot of activity today :hamster: : beyond the current ARs, a new sunspot is emerging at the SSW limb and nice proms at the NE and SW limbs.
Pleasant imaging session: good transparency and average/decent seeing, stable throughout the morning.
Currently processing pictures, will add them to the thread. :D

CS

Fabio



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Re: 22 Nov 2020 a lot of activity in WL & Ha

Post by Fabio_Imm » Sun Nov 22, 2020 10:47 am

Here are the WL images

WL photographic setup:
80ED scope + 2" UV/IR cut + 2" Baader solar continuum (on 80mm extension tubes) + ND3 filter & dual stacked 2x barlows on camera nose
Basler acA1920-155um

Since the seeing was nice, I stacked a 2nd barlow and ventured in some closeups of the current sunspots

Here is the new entry at the southern limb:
ImageWL__2020-11-22_T3 by Fabio Immovilli, su Flickr

And then the old acquaintances of the past week:
ImageWL__2020-11-22_T4 by Fabio Immovilli, su Flickr

ImageWL__2020-11-22_T5 by Fabio Immovilli, su Flickr

More to come



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Re: 22 Nov 2020 a lot of activity in WL & Ha

Post by marktownley » Sun Nov 22, 2020 10:58 am

Nice white lights Fabio!


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http://brierleyhillsolar.blogspot.co.uk/
Solar images, a collection of all the most up to date live solar data on the web, imaging & processing tutorials - please take a look!

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Re: 22 Nov 2020 a lot of activity in WL & Ha

Post by Fabio_Imm » Sun Nov 22, 2020 11:39 am

Here are Ha and proms:

Ha setup
SS60 Quark etalon on an 80ED scope
Basler acA1920-155um + polarizing filter on camera nose

I added a polarizing filter between the Quark and the camera, adjusting it for maximum transmission. I had to increase the exposure time to 50ms, but the contrast and the detail improved significantly: could it be that my etalon has significant off-band spillage?

For the first time I was able to see both chromosphere and proms in the same picture! :hamster:

The new region at the southern limb is torching happily:
ImageHa__2020-11-22_T3 by Fabio Immovilli, su Flickr

ImageHa__2020-11-22_T1 by Fabio Immovilli, su Flickr

ImageHa__2020-11-22_T2 by Fabio Immovilli, su Flickr

The proms are next...



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Re: 22 Nov 2020 a lot of activity in WL & Ha

Post by Fabio_Imm » Sun Nov 22, 2020 11:51 am

Finally, proms:

The one on NE limb was gorgeous:
Image2020-11-22_T1 crop by Fabio Immovilli, su Flickr

The one on the opposite SW limb was tricky to capture, here I overexposed a little:
Image2020-11-22_T2 crop by Fabio Immovilli, su Flickr

Overall, a really nice session.

Cheers and CS

Fabio



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Re: 22 Nov 2020 a lot of activity in WL & Ha

Post by yltansg » Sun Nov 22, 2020 12:33 pm

Hi Fabio,

That's a great collection. The Proms are great!!

Alfred



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Re: 22 Nov 2020 a lot of activity in WL & Ha

Post by dhkaiser » Sun Nov 22, 2020 12:41 pm

Great WL images as well as Ha.


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Re: 22 Nov 2020 a lot of activity in WL & Ha

Post by dhkaiser » Sun Nov 22, 2020 12:42 pm

Great WL images as well as Ha.


Dan
Lunt LS60THa, Lunt LS60FHa DS
Lunt 102mm ED, William Optics ZS73, Herschel Wedge
Celestron C6 SCT
Ioptron AZ Pro mount, CG-4 mount
ASI 178 mono
South central Indiana
USA

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