Prominences a bit subdued this morning.
This is the last solar post for a while as we are off to Scotland for 2 1/2 weeks.
Roger Samworth
Ionize Calcium / Better Than H-alpha?
This post (http://spaceweathergallery.com/indiv_upload.php?upload_id=148025&PHPSESSID=ufu9aq45u6ht3gl4rhuesc8jj2)
is entitled “Ionize Calcium / Better Than H-alpha?”
Not sure I’m convinced!
Compare with this a day earlier – http://spaceweathergallery.com/indiv_upload.php?upload_id=147977&PHPSESSID=ufu9aq45u6ht3gl4rhuesc8jj2
(same as this: https://roslistonastronomy.uk/nice-prominences-this-morning-13-09-2018)
Need to see Ha and Ca-K at the same time. Pete? Andy?
Interestingly, although we have no sunspots, prominences are fairly abundant.
Prominences in Ca-K
To all (both?) of you with Ca-K filters, this says you can see prominences in Ca-K.
http://spaceweathergallery.com/indiv_upload.php?upload_id=147988&PHPSESSID=bglhh5nji9vda2bb66kl3i1b46
Nice prominences this morning – – – 13/09/2018
Nice new prominences with complex structure this morning AND Sunspot AR 2722
.
Mars dust storm finished?
If anyone is interested, it looks like the Martian dust storm has subsided.
http://spaceweathergallery.com/indiv_upload.php?upload_id=147819&PHPSESSID=vfna4gelsouehkfufteq2qsis4
Nice new prominence with complex structure this morning AND Sunspot AR 2721! – -09/09/2018
Nice new prominence with complex structure this morning AND Sunspot AR 2721. Took advantage of the window-sill observatory’s instant availability to look through a hole in the clouds!
Nice prominence this morning – -07/09/2018
Nice prominence with complex structure this morning.
Although still quiet, a good array of prominences today – – -05/09/2018
Although still quiet, a good array of prominences today.
Sun today – – – 02/09/2018
After a considerable period of inactivity, there are some rather nice prominences today;
