good morning, everyone,
passing this week at the Sirene Observatory ( https://www.obs-sirene.com/ ) on the Albion plateau in France, I was hoping for a better weather forecast than at home... well, not really.
After the rain and snow of the previous days, a more clear day today (I hope to see the stars tonight!); however, as often, the wind has risen with gusts of up to 40km/h!
In short, I still tried different settings between the clouds to improve my images of the sun at the fs60 focus: I put the glasspath x1.25 and so the tilt ring back on again. I think I found a not too bad setting to remove the interference we saw in the center. I also unscrewed the second stack a little bit to get more luminous in the middle and darker at the edge (the opposite of previous). It's not perfect yet, I think I would need a ring allowing the rotation between the two stacks, that would be better.
I also played with the camera settings: a low gamma and a low gain also give better results. (we see less of the pattern... and more at all when the "plastic" flat is working! )
Otherwise, always the fs60 with the sm40 double stack, glasspath x1.25, BF10 and zwo178mm around 12h20 UT.
regards,
stéphane - France
halpha sun on March 7th
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Re: halpha sun on March 7th
Great images
Rainer
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: halpha sun on March 7th
That's a much better result!
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: halpha sun on March 7th
Wonderful set up and images
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Re: halpha sun on March 7th
That is certainly a lovely observation point, I hope you saw the stars later too. Superb images of the Sun
Alexandra
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Re: halpha sun on March 7th
thanks to you
@montana > yes, sun during the day and deep sky object at night... well, weather permitting! It is to say if I do not sleep much sometimes when I am at the observatory!
cordially,
stephane - France
@montana > yes, sun during the day and deep sky object at night... well, weather permitting! It is to say if I do not sleep much sometimes when I am at the observatory!
cordially,
stephane - France
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