Hi all,
Here is the AR12685 at the eastern solar limb.
The image has been taken with my C11 telescope D=280mm F/10 at affective f/20.
295mm full size DERF.
PST Mod-2 + Basler 1920-155 camera.
Thanks for looking.
Valery
2017 Oct 22 - New AR12685 at the eastern limb
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Valery
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2017 Oct 22 - New AR12685 at the eastern limb
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Last edited by Valery on Mon Oct 23, 2017 7:59 pm, edited 2 times in total.
"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.
Largest full size 185 - 356mm Dielectric Energy Rejection Filters (D-ERF) by ARIES Instruments.
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eroel
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ffellah
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Re: 2017 Oct 22 - New AR12685 at the eastern limb
Another great image, Valery. Good to see a sunspot again after a period of blank disks.
Stu.
Stu.
H-alpha, WL and Ca II K imaging kit for various image scales.
Fluxgate Magnetometers (1s and 150s Cadence).
Radio meteor detector.
More images at http://www.flickr.com/photos/solarcarbon60/
Fluxgate Magnetometers (1s and 150s Cadence).
Radio meteor detector.
More images at http://www.flickr.com/photos/solarcarbon60/
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Montana
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Re: 2017 Oct 22 - New AR12685 at the eastern limb
Wow! that's a great shot, glad to see you still producing first class images into autumn 
Alexandra
Alexandra
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Valery
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Re: 2017 Oct 22 - New AR12685 at the eastern limb
These last days were relatively warm and without large night - day temperature changes. This, I believe was the key factor for a good seeing.
But I need to note that seeing now is not as good as in April to September season.
Good weather forecast for tomorrow and I hope for a good seeing.
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.
Largest full size 185 - 356mm Dielectric Energy Rejection Filters (D-ERF) by ARIES Instruments.
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marktownley
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Re: 2017 Oct 22 - New AR12685 at the eastern limb
Very good Valery!
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!