Hi all,
The sun is really boring with no spots on it's face. And no great prominences too.
So, lets look back to the days of higher activity with great sun spots of the cycle 24.
Here is the AR12585 from September 2016 as seen through my trusty 11" SCT Celestron
equipped with the ARIES full size 295mm three bands DERF filter and a very inexpensive
small 20mm Ha etalon. This DERF brings an advantage of using full 280mm aperture of C11,
not a small off axis 70-80mm aperture. A 280mm aperture is a real game changer. You can see
this looking at this photo.
One can see such a picture in a real time on a 17", 19" or a 24" screen!
Thanks for looking.
Valery
Great sunspots of the cycle 24. AR12585 with C11 280mm sperture.
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Valery
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Great sunspots of the cycle 24. AR12585 with C11 280mm sperture.
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- AR12585-2016-09-04-UT07h-06m-C11-ARIES-295mmDERF-20mm-etalon-Basler-1920-155.jpg (357.38 KiB) Viewed 749 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.
Largest full size 185 - 356mm Dielectric Energy Rejection Filters (D-ERF) by ARIES Instruments.
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Montana
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Re: Great sunspots of the cycle 24. AR12585 with C11 280mm sperture.
Roll on Cycle 25 
Fabulous shot Valery
Alexandra
Fabulous shot Valery
Alexandra
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marktownley
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Re: Great sunspots of the cycle 24. AR12585 with C11 280mm sperture.
Always nice 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!
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Carbon60
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Re: Great sunspots of the cycle 24. AR12585 with C11 280mm sperture.
Another remarkable image, Valery.
A small but highly 'selected' etalon, no doubt
Stu.
A small but highly 'selected' etalon, no doubt
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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MAURITS
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