WoW, it looks almost liquid.oriolestation wrote: ↑Sun Mar 12, 2023 4:09 am This is a fantastic movie by Hinode/SOT of a polar crown prominence in Ca H
https://science.nasa.gov/files/atoms/fi ... _short.mov
Woot!
Quiescent Prominence Bubbles and Dark Plumes
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Re: Quiescent Prominence Bubbles and Dark Plumes
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Re: Quiescent Prominence Bubbles and Dark Plumes
In this brief movie of a quiescent prominence, the bright build up of down flow plasma can be seen on the top of the bubble void. The bubble void was quite stable and did not produce dark rising plumes during the period I was imaging.
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Re: Quiescent Prominence Bubbles and Dark Plumes
Figured I would throw this one in from 3/30/2023 showing a developing bubble in the prom on the left (NW limb has been rotated). I should have recorded longer to see if that bubble popped!
SW-Limb-Proms-Animation-3-30-2023 by Rigel123, on Flickr
SW-Limb-Proms-Animation-3-30-2023 by Rigel123, on Flickr
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Re: Quiescent Prominence Bubbles and Dark Plumes
Nicely shows how the down flow builds up on top of the bubble. Excellent.
Is this with your double stack system?
Is this with your double stack system?
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Re: Quiescent Prominence Bubbles and Dark Plumes
Thanks Jim, I thought of you as soon as I saw what I caught! Yes, that is with the Lunt LS60T DS using an ASI174MM and a Meade 3X TeleXtenderoriolestation wrote: ↑Sat Apr 01, 2023 5:51 pm Nicely shows how the down flow builds up on top of the bubble. Excellent.
Is this with your double stack system?
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Re: Quiescent Prominence Bubbles and Dark Plumes
A complicated bubble void on the north end of the prominence. Wish the seeing had been better (only rare moments of steady air), would have liked to follow the evolution of that bubble....
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Re: Quiescent Prominence Bubbles and Dark Plumes
These are really quite nice views of it though.
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Re: Quiescent Prominence Bubbles and Dark Plumes
Just came upon this animation from 7/4/2020 which shows a very large “bubble” near the top of this large prom that quickly disappears.
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Re: Quiescent Prominence Bubbles and Dark Plumes
I've just read this fascinating thread.
Alas the NASA movie Jim linked to on page 2 no longer exists, but the paper Jim cited contains the videos and much analysis.
"Quiescent Prominence Dynamics Observed with the Hinode Solar Optical Telescope. II. Prominence Bubble Boundary Layer Characteristics and the Onset of a Coupled Kelvin–Helmholtz Rayleigh–Taylor Instability"
https://iopscience.iop.org/article/10.3 ... a95b6bib63
Scroll to "2. Prominence Bubble Expansion and Boundary Layer Characteristics".
There you'll find a video from 2007 spanning 16:00 UT to almost 21:00 UT.
Mesmerizing.
In the right hands that double limb is spectacular.
I've been brainwashed into thinking it's a bad thing!
Cheers,
Ed
Alas the NASA movie Jim linked to on page 2 no longer exists, but the paper Jim cited contains the videos and much analysis.
"Quiescent Prominence Dynamics Observed with the Hinode Solar Optical Telescope. II. Prominence Bubble Boundary Layer Characteristics and the Onset of a Coupled Kelvin–Helmholtz Rayleigh–Taylor Instability"
https://iopscience.iop.org/article/10.3 ... a95b6bib63
Scroll to "2. Prominence Bubble Expansion and Boundary Layer Characteristics".
There you'll find a video from 2007 spanning 16:00 UT to almost 21:00 UT.
Mesmerizing.
In the right hands that double limb is spectacular.
I've been brainwashed into thinking it's a bad thing!
Cheers,
Ed
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Re: Quiescent Prominence Bubbles and Dark Plumes
This is a nice article. I'll certainly read it in its entirety when I get a chance.
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Astro-Tech AT72EDII with Altair solar wedge
Celestron NexStar 102GT with Altair solar wedge
Losmandy AZ8 Alt/Az Mount
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Re: Quiescent Prominence Bubbles and Dark Plumes
Some recent results on a very small quiescent prominence on the north polar limb.
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Re: Quiescent Prominence Bubbles and Dark Plumes
I missed your post earlier. This is fantastic. Do you recall where on the limb this was located?
Bravo! Bravo!
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Re: Quiescent Prominence Bubbles and Dark Plumes
That was the SE limb, I believe. As it does not look like I rotated it I’m pretty sure it is presented how I imaged it and I orient my camera for captures based on GONG images.oriolestation wrote: ↑Fri Oct 13, 2023 5:22 pmI missed your post earlier. This is fantastic. Do you recall where on the limb this was located?
Bravo! Bravo!
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Re: Quiescent Prominence Bubbles and Dark Plumes
Amazing how quickly the bubble void on the northern end of the prom breaks up and down flows. Excellent.
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Re: Quiescent Prominence Bubbles and Dark Plumes
A very small quiescent prominence on the polar south east limb. Dark bubble voids at the base of the prominence have been disrupted and partially deflated. A number of dark plumes are visible rising up from the prominence base.
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Re: Quiescent Prominence Bubbles and Dark Plumes
Very nice resolution on such small proms! Solar dynamics in action.
Lunt 8x32 SUNoculars
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Re: Quiescent Prominence Bubbles and Dark Plumes
That is awesome!
Warren
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Disrupted bubble void in quiescent prominence
Partial collapse of bubble void in large quiescent prominence on the south pole limb.
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Re: Quiescent Prominence Bubbles and Dark Plumes
Amazing work Jim! You show the works of these prominences very well.
James
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Lunt 8x32 SUNoculars
Orion 70mm Solar Telescope
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Astro-Tech AT72EDII with Altair solar wedge
Celestron NexStar 102GT with Altair solar wedge
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Cameras: ZWO ASI178MM, PGR Grasshopper, PGR Flea
Lunt, Coronado, TeleVue, Orion and Meade eyepieces
Visual Observer
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Orion 70mm Solar Telescope
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Meade Coronado SolarMax II 60 DS
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Meade Coronado AZS Alt/Az Mount
Astro-Tech AT72EDII with Altair solar wedge
Celestron NexStar 102GT with Altair solar wedge
Losmandy AZ8 Alt/Az Mount
Sky-Watcher AZGTI Alt-Az GoTo mount
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