Any ideas? mystery bubble

[Stardust5858]

I'm a bit late to this party but only just processed some imaging done the next day on the 17th. I might be mistaken but there seems to be similar bubbles in these images.

[Montana]

It is a pity you didn't do an animation that's a mission for next time

Alexandra

[Stardust5858]

It is a pity you didn't do an animation that's a mission for next time

Alexandra

Yes, I could kick myself as I'd only got a couple of image's close in time line so cannot see if there was any developments.

[DeepSolar64]

We all need to keep an eye out and a eyepiece and camera at the ready when there is a large prominence on the limb to try to catch and learn more on this phenomenon. And if cloudy use the SDO on Helioviewer.

I wonder if anyone here has the ability to observe/image in any of the Helium spectral lines? I would be curious if that would pick anything up. DayStar has a Helium D3 line filter but it looks like it concentrates on the photosphere-chromosphere transition region. Not proms.

James

[oriolestation]

Andy has managed to track down a most likely cause for the event, something we should all look out for when observing
https://www.space.com/11684-plasma-bubb ... torms.html

Alexandra

A curious article... I have not read anything that suggested the bubble voids and rising plumes in quiescent prominences could cause CMEs. The development of bubble voids is indeed dynamic for a quiescent prominence, but I'm reluctant to believe they could set off events such as coronal mass ejections. I've been following these bubbles and plumes, and Berger and other researcher's various papers on the subject for several years now....

[DeepSolar64]

Yes, this post certainly goes along with Jim's work!