AR2757 January 26th, 2020
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AR2757 January 26th, 2020
Hello all: yesterday I saw that we were going to have intervals of sun this morning. I woke up with the crazy idea to try high resolution with the PST etalon while my other better filter is out until end of February. I was happy to see that AR2757 was visible in some detail, even if the seeing was definitely borderline for high resolution. I am glad I got some images, even if they are not what you can expect with good seeing.
Clear skies to all !
Franco
Clear skies to all !
Franco
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Re: AR2757 January 26th, 2020
Hi Franco,
Great close up
Rainer
Great close up
Rainer
regards Rainer
Observatorio Real de 14
San Luis Potosi Mexico
North 22° West 101°
Observatorio Real de 14
San Luis Potosi Mexico
North 22° West 101°
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Re: AR2757 January 26th, 2020
Thank you, Rainer. I processed this second image, that seems to have a bit more detail. Probably a moment of better seeing.
Franco
Franco
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Re: AR2757 January 26th, 2020
Very nice, Franco. It's great to see some hi-res images again. Hope your skies continue to be favorable.
Phil
Phil
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Re: AR2757 January 26th, 2020
Nice images, Franco. Looking forward to better conditions as the season progresses.
Stu.
Stu.
H-alpha, WL and Ca II K imaging kit for various image scales.
Fluxgate Magnetometers (1s and 150s Cadence).
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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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Re: AR2757 January 26th, 2020
Seeing can indeed spoil the party from time to time. Still some pretty good looking captures there, Franco.
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Re: AR2757 January 26th, 2020
Great details Franco, well done!
Raf
My solar images and reports with articles on solar equipment
My solar images and reports with articles on solar equipment
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Re: AR2757 January 26th, 2020
Thank you very much Phil, Eric, Stu, Jochen and Raf for your nice comments.
Franco
Franco
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Re: AR2757 January 26th, 2020
Hi Alexandra: thank you for your WOW ! I used the PST etalon on the 203mm HaT solar scope at F/27.5. Marty: thank you for your comments. Yes, it is very nice to see a real sunspot with light bridge and all. Hope we get more, now that Cycle 25 has supposedly started.
Franco
Franco
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Re: AR2757 January 26th, 2020
Hi Franco,
Nice set-up. Second image is a big improvement!
Why do you choose to use the PST etalon in a Telecentric beam? You could choose to use it with the collimating lenses, the Celestron is f/10.
CS! Bart.
Nice set-up. Second image is a big improvement!
Why do you choose to use the PST etalon in a Telecentric beam? You could choose to use it with the collimating lenses, the Celestron is f/10.
CS! Bart.
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Re: AR2757 January 26th, 2020
Hi Bart: thank you for your feedback. According to Airylab you can use the PST etalon in this configuration: you remove it from the scope, take out the lenses and insert it after the telecentric. I use this etalon while my primary Solar Spectrum filter is back in CA for repair, as something happened to one coating and there was major loss of contrast. How is everything going with you ?
Franco
Franco
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Re: AR2757 January 26th, 2020
This is the last image, processed differently in ImPPG and Photoshop. The light bridge is much more visible.
Franco
Franco
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Re: AR2757 January 26th, 2020
Hi Franco, looking at your images it works! I used the PST etalon with the lenses straight on my 7 inch Intes. AOK made an adapter to mount it directly to the back of the telescope. A PST etalon at f/27 is maybe a bit less narrow than in the original configuration with the lenses at f/10. Christian has written a lot about it.
It is going fine here, thanks for asking! Waiting for the sun to climb higher. My H-alpha train looks quite a bit like yours, after finding a secondhand SolarSpectrum:
Baader TZ3 - SolarSpectrum 0.5 - 0,4× telecompressor - camera. I can mount a PST etalon right after the SolarSpectrum to achieve a doublestack. In that configuration the PST etalon is used without the lenses. No first light yet, waiting for a TriBand Erf Valery is making.
CS! Bart.
It is going fine here, thanks for asking! Waiting for the sun to climb higher. My H-alpha train looks quite a bit like yours, after finding a secondhand SolarSpectrum:
Baader TZ3 - SolarSpectrum 0.5 - 0,4× telecompressor - camera. I can mount a PST etalon right after the SolarSpectrum to achieve a doublestack. In that configuration the PST etalon is used without the lenses. No first light yet, waiting for a TriBand Erf Valery is making.
CS! Bart.
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Re: AR2757 January 26th, 2020
Good shots Franco, I will have to give this a go.
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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