Animation of Penumbral Waves
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Animation of Penumbral Waves
Hi all,
In the post with the 1h animation of two days ago (17 June 2021), Filip made an interesting observation and comment. He noted that Penumbral waves were visible around the spot. I didn't know about this phenomenon neither the term until that moment. Excited that somebody show me something new to me, I wanted to share it with you. It seems there are several scientific papers about the penumbral waves.
They were just visible in my original animation and the experienced eye of Filip got them. I played much faster the animation et Voila! They are much better seen now in the cropped Gif, especially in the northern part of the spot.
PLEASE give the animation the time to load properly. It is 1 hour animation. If somebody wishes to add a few more words about the Penumbral Waves is very welcome!
Best wishes,
Alexandros
In the post with the 1h animation of two days ago (17 June 2021), Filip made an interesting observation and comment. He noted that Penumbral waves were visible around the spot. I didn't know about this phenomenon neither the term until that moment. Excited that somebody show me something new to me, I wanted to share it with you. It seems there are several scientific papers about the penumbral waves.
They were just visible in my original animation and the experienced eye of Filip got them. I played much faster the animation et Voila! They are much better seen now in the cropped Gif, especially in the northern part of the spot.
PLEASE give the animation the time to load properly. It is 1 hour animation. If somebody wishes to add a few more words about the Penumbral Waves is very welcome!
Best wishes,
Alexandros
Alexandros
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Re: Animation of Penumbral Waves
WoW!! This is amazing! Proof that amateurs can do professional quality work. It's amazing what we can now image and nothing reveals the Sun like a good animation does. I wonder if anyone here has captured Moreton waves?
https://en.wikipedia.org/wiki/Moreton_wave
James
https://en.wikipedia.org/wiki/Moreton_wave
James
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Re: Animation of Penumbral Waves
Excellent capture of these delicate waves, Alexandros.
Stu.
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Fluxgate Magnetometers (1s and 150s Cadence).
Radio meteor detector.
More images at http://www.flickr.com/photos/solarcarbon60/
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Re: Animation of Penumbral Waves
Thanks a lot Peter, James, Stu,
@James: Thanks for the link on Moreton_waves! The solar Tsunamis! Let's see if we will observe and record them the following years towards the maximum ;-)
Best wishes,
Alexandros
@James: Thanks for the link on Moreton_waves! The solar Tsunamis! Let's see if we will observe and record them the following years towards the maximum ;-)
Best wishes,
Alexandros
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Re: Animation of Penumbral Waves
You are welcome Alexandros. This was an outstanding animation of penumbral waves!
James
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Re: Animation of Penumbral Waves
Thanks a lot James and Ivan,
@James: Many thanks once more. Hope to be able to have a proper Barlow or telecentric soon, to make magnified animations. Better and larger penumbral waves will be a feasible goal then. It is still not clear for me if FFC or Baader telecentric 4X or some other Barlow would be the best choice.
;-)
Best wishes,
Alexandros
@James: Many thanks once more. Hope to be able to have a proper Barlow or telecentric soon, to make magnified animations. Better and larger penumbral waves will be a feasible goal then. It is still not clear for me if FFC or Baader telecentric 4X or some other Barlow would be the best choice.
;-)
Best wishes,
Alexandros
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Re: Animation of Penumbral Waves
Fabulous work! Moreton waves are a little more difficult, you have to be doing continuous animations of the whole Sun to achieve this. This was studied by Thomas Ashcraft in the USA who has seen this many times http://www.heliotown.com/Moreton_wave_Ashcraft.html
Alexandra
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Re: Animation of Penumbral Waves
Thanks a lot Alexandra!
Your link helps a lot. I thought they last much more time, but if only some 5-10 minutes, the chances to capture them one day increases. Of course they do not occur so often and much luck is needed, but as the solar activity will be increasing until the maximum, maybe someone of our community making long animations may capture them. Of course as you say the animation should cover a very large portion of the sun around an active area and have the chance to capture the flare that will produce them. ;-)
Best wishes,
Alexandros
Your link helps a lot. I thought they last much more time, but if only some 5-10 minutes, the chances to capture them one day increases. Of course they do not occur so often and much luck is needed, but as the solar activity will be increasing until the maximum, maybe someone of our community making long animations may capture them. Of course as you say the animation should cover a very large portion of the sun around an active area and have the chance to capture the flare that will produce them. ;-)
Best wishes,
Alexandros
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Re: Animation of Penumbral Waves
Thanks a lot Franco!
Best wishes,
Alexandros
Best wishes,
Alexandros
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