AR12662 in two lines Ca II K and H-a with a 280mm aperture.

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Valery
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AR12662 in two lines Ca II K and H-a with a 280mm aperture.

Post by Valery » Sat Feb 17, 2018 5:02 am

Hi all,

February is the most cloudy month here at the south of Ukraine.
Time to time I review all my last years achievements in the solar imaging.
I know, that most of you are also under dense "cloud carpets" and may be
it will be interesting for you to remember what our sun showed us these
sunny days last year.

Here are the images of the middle sized sun spot AR12662.
The images were taken morning June 20 2017.

280mm F/10 Celestron SCT coupled with the ARIES two bands DERF full
size filter were used and double stacked CaK 2,2A filters as well as a double
stacked Ha filters.

To see the images in their native resolution - right click on them and choose to open
them in a separate window.

Thanks for looking.


Valery
Attachments
08h-48m-DS.jpg
AR12662 in Ca II K wide field
08h-48m-DS.jpg (483.53 KiB) Viewed 596 times
_June-20-2017-UT-09h-07m-90%.jpg
AR12662 in Ca II K larger scale
_June-20-2017-UT-09h-07m-90%.jpg (261.77 KiB) Viewed 596 times
_June-20-2017-UT-06h-38m-Ha-DS.jpg
AR12662 in H-a
_June-20-2017-UT-06h-38m-Ha-DS.jpg (495.52 KiB) Viewed 596 times
"Solar H alpha activity is the most dynamic and compelling thing you can see in a telescope, so spend accordingly." (c) Bob Yoesle.

Largest full size 185 - 356mm Dielectric Energy Rejection Filters (D-ERF) by ARIES Instruments.

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ffellah
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Re: AR12662 in two lines Ca II K and H-a with a 280mm aperture.

Post by ffellah » Sat Feb 17, 2018 1:26 pm

Pretty amazing Cal K images, Valery.

Franco

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Re: AR12662 in two lines Ca II K and H-a with a 280mm aperture.

Post by marktownley » Sat Feb 17, 2018 8:02 pm

Mighty fine images Valery!

I like how when we look closer in CaK it gets a bit softer
Image
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: AR12662 in two lines Ca II K and H-a with a 280mm aperture.

Post by rsfoto » Sun Feb 18, 2018 5:20 pm

Great images Valery. Never seen such a close up in Calcium
regards Rainer

Observatorio Real de 14 San Luis Potosi Mexico

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Re: AR12662 in two lines Ca II K and H-a with a 280mm aperture.

Post by Carbon60 » Sun Feb 18, 2018 7:06 pm

All very nice. I'm forgetting what the Sun looks like :(

Stu.
Lunt LS60THa B1200 PTFT
150mm H-alpha Solar telescope with Lunt35 mod
DMK41, Basler acA1920-155
NEQ6 Pro-mount
Fluxgate Magnetometers (1s and 150s Cadence)
More images at http://www.flickr.com/photos/solarcarbon60/

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Re: AR12662 in two lines Ca II K and H-a with a 280mm aperture.

Post by JohnW » Mon Feb 19, 2018 12:29 am

Nice detail Valery esp. the Ca K shots. Cheers, John W

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Valery
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Re: AR12662 in two lines Ca II K and H-a with a 280mm aperture.

Post by Valery » Tue Feb 20, 2018 11:00 am

Thank you, guys for your kind words.

Hope for some solar activity later this season - when my big solar guns will be mounted outside.

Valery
"Solar H alpha activity is the most dynamic and compelling thing you can see in a telescope, so spend accordingly." (c) Bob Yoesle.

Largest full size 185 - 356mm Dielectric Energy Rejection Filters (D-ERF) by ARIES Instruments.

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Re: AR12662 in two lines Ca II K and H-a with a 280mm aperture.

Post by eroel » Tue Feb 20, 2018 2:23 pm

Valery:
#1 and #3 are suoerb.
Best regards,
Eric.

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Re: AR12662 in two lines Ca II K and H-a with a 280mm aperture.

Post by Montana » Wed Feb 21, 2018 10:48 am

Wow! these are cracking Valery, I love the granulation cells in the first shot :bow :bow
Alexandra

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