October 16th Ha Sol

[Peter Ward]

Woke up to another blue-sky morning...seeing... not great...and high cirrus was drifting in ....and we all know what that means.

So I foolishly made just two imaging runs, as on first inspection, little interesting was happening with our local star.

Pity I didn't crank up the exposure times, as some superb, but very faint prom activity was in progress.

Did anyone else catch this?

The 3 o'clock proms were very faint, but showed beautiful magnetic arcs and detached structures.

Unfortunately I only became aware of this after stacking the data late afternoon (the clouds making a re-shoot pointless)

I chose not to suppress the camera noise to better show these proms.

The image link is here

[kencas (Ken)]

Gee, that's some serious activity happening there! Beautiful image!

[AstralTraveller (David)]

Another great image Peter!

I was watching visually that day and if I mentally subtract about 98% of the detail in your image it does look a bit like what I saw. I recognise the area at 3 o'clock and I did enjoy the detached prominence. When I set up I observe throughout the morning (or until the cloud arrives); I might observe for 10 minutes then take a half hour break then check it out again etc). I came back one time to find numerous faint (to me) detached prominences at about 90* anticlockwise from the area I mentioned. However I was using a diagonal which flipped the image approximately along the e-w axis, so perhaps it at 6 o'clock on your image?? They faded away over about 15 minutes. The total lack of sunspots was a surprise. I normally use them to focus and so fiddled about with the focus for a few moments before I realised that none were going to appear.