Full disk H-alpha animation from July 12th 2021

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Full disk H-alpha animation from July 12th 2021

Post by cmas »

I was imaging the Sun on 12th July 2021 between 12:50:39 - 13:47:17 UTC+3. I recorded several videos and made a solar timelapse lasting about 56 minutes in real time. Videos in black and white and in color are shown below as well as a still shots looking like the best of the bunch. All in all, the Sun looked very quiet, no flares and nothing fast paced going on. The proms reminded me of palm trees in a wind :D Last part of the animation suffers from thin clouds and possibly focus drifting. I know that during morning sessions I can make such an animation without touching the focuser at all, but as the day was really hot in Finnish standards (around +30 degC) it may be that focus drifting was causing part of the problems. I decided to make an animation from all the frames anyway and did a couple of different processings for one still frame.

Some details:
43 videos, each 3000 frames (about 20 sec to take the video, then 60 sec break and a new video etc). Total of 129 000 frames and 186 GB of SER. I stacked best 60 % of each meaning that every frame of the animation consists of best 1800 frames. Thus, the animation is built using 77 400 frames out of those 129 000 frames. Processing as usual: AS3, ImPPG and Photoshop. Seeing was not that good as it was already afternoon and a lot of "boiling" going on. I was also imaging over nearby buildings with hot roofs etc. Baader D-ERF / Sharpstar 61 EDPH ii / Chromo Quark / reducer / ASI174 mm / Skywatcher SolarQuest.

Image

Image

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Image
Last edited by cmas on Tue Jul 13, 2021 11:18 am, edited 1 time in total.


H-alpha: Baader D-ERF, Sharpstar 61 EDPH II, Altair Astro 102 f/7, Quark, reducer and ASI174mm.
White light: Baader ASSF 115, Sony SEL 200600G, Sony SEL20TC, Sony A7iii.
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Re: Full disk H-alpha animation from July 12th 2021

Post by MAURITS »

Great FD's Tommi.


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Re: Full disk H-alpha animation from July 12th 2021

Post by Montana »

These are great!! It is lovely to see all the quiet chromosphere moving about like grass in the wind, the B&W shows this best. The colour shows the proms better as it is brighter. I really enjoyed both :movie :movie :movie

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Re: Full disk H-alpha animation from July 12th 2021

Post by Petrus »

Great job once again :)


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Re: Full disk H-alpha animation from July 12th 2021

Post by Ivan »

Tommi, this is a very beautiful animation, the volume of work and the amount of footage is huge. Thank you.

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Re: Full disk H-alpha animation from July 12th 2021

Post by torsinadoc »

Wonderful. I really enjoyed the BW


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Re: Full disk H-alpha animation from July 12th 2021

Post by cmas »

Thank you all for your kind words, they are much appreciated! This solar work sure beats imaging in the winter time, and recording and processing the data for full disks seems to be straightforward and fun :)


H-alpha: Baader D-ERF, Sharpstar 61 EDPH II, Altair Astro 102 f/7, Quark, reducer and ASI174mm.
White light: Baader ASSF 115, Sony SEL 200600G, Sony SEL20TC, Sony A7iii.
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Re: Full disk H-alpha animation from July 12th 2021

Post by Carbon60 »

Nicely done. It’s a pity things are so quiet at the moment as this is a lot of work.

Stu.


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Re: Full disk H-alpha animation from July 12th 2021

Post by cmas »

I think this as a different phase. It would be boring to see vicious action day after a day. Sometimes these more serene views are just nice. And today (14th July) there seems to be again a different view (I'm stacking images for today's views as of writing this so let's see what that brings to the table).

And yeah, it's some work, but automated from recording to ImPPG so it only takes a few clicks to reach up to the point where all data is ready for animations in Photoshop. And Photoshopping does not take that long as I have built actions etc into it. The longest time is spent in stacking with AS3 which seems to take about 4 hours of cpu time with an old 6 Core / 12 thread / 32 GB Xeon platform for data sets shown in this thread but I can find a lot of house work etc for that period :)


H-alpha: Baader D-ERF, Sharpstar 61 EDPH II, Altair Astro 102 f/7, Quark, reducer and ASI174mm.
White light: Baader ASSF 115, Sony SEL 200600G, Sony SEL20TC, Sony A7iii.
Images in AstroBin
Images in Flickr
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