Sol from the 9th of July 2018.

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eroel
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Sol from the 9th of July 2018.

Post by eroel » Wed Jul 11, 2018 10:50 pm

Hi:
Bad weather keeps up at my place, on the 9th it rained in the morning then it clouded but before lunch I saw the sun shinning through clouds, I thought that nothing would come out, but it did. (had to overexpose the bright ones)
Used the Solarmax 90-DS and the SKYnyx 2-2, I thought that I would not capture the very dim prominences, took 1000 frames in SER and used 30% of them.
Thanks for looking,
Eric.
Sol del 9 de julio del 2018.jpg
Sol del 9 de julio del 2018.jpg (156.43 KiB) Viewed 75 times
Sol del 9 de julio de 2018-Solarmax 90-DS-BF30-1an.jpg
Sol del 9 de julio de 2018-Solarmax 90-DS-BF30-1an.jpg (948.17 KiB) Viewed 75 times
Sol del 9 de julio de 2018-Solarmax 90-DS-BF30-1inv.jpg
Sol del 9 de julio de 2018-Solarmax 90-DS-BF30-1inv.jpg (1.02 MiB) Viewed 75 times

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p_zetner
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Re: Sol from the 9th of July 2018.

Post by p_zetner » Thu Jul 12, 2018 12:36 am

Nice disks, Eric. You captured a “keeper” despite the uncooperative weather.
Cheers, Peter.

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Re: Sol from the 9th of July 2018.

Post by ffellah » Thu Jul 12, 2018 12:40 am

That is a great looking disk, Eric.

Franco

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Re: Sol from the 9th of July 2018.

Post by DJD » Thu Jul 12, 2018 8:08 am

Eric,
They are lovely, I would not have thought you would get so much detail from that amount of cloud.
Shows how much I know :-)
Best wishes,
David
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Re: Sol from the 9th of July 2018.

Post by Montana » Thu Jul 12, 2018 11:34 am

Amazing how you didn't get a mottled surface after stacking with that cloud, I know I would. You work miracles :bow
Alexandra

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eroel
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Re: Sol from the 9th of July 2018.

Post by eroel » Thu Jul 12, 2018 3:30 pm

Alexandra, Peter, Franco and David, thanks for looking and commenting the image.

Well, when I first saw the clouded sky, I thought that I could not take my usual CaK and Ha FD´s, so I started looking how to improve the recording with the 12fps SKYnyx 2-2 camera that I normally use, because I record with the Lucam-Recorder software and I am used to it.

One could see at the monitor the FD image through the clouds, but my usual exposure could not be used, so I had to look for one that would be taken with the best contrasty combination of exposure, gain and gamma. It also was hard to focus correctly but did it the best I could, so I took 1000 frames in SER format. Then came the prominence FD, this was hard because there were some bright protuberances and some really dim and featureless, so to find the best recording was hard. Took about 3 series of 1000 frame recordings but found only one set to be useful.

Then I processed the surface and prominence discs in tiff (normally I do it in .jpg), taking care to get the best of them, so on the prominence disc, I independently took care of each set of protuberances using the magic wand tool and stretching them and when ready, I converted the FD´s to .jpg and loaded them.

Have a good day,
Eric.

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Re: Sol from the 9th of July 2018.

Post by marktownley » Sat Jul 14, 2018 1:13 pm

That's very nice Eric, especially considering that sky...
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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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