A Hitchhiker's Guide to Space & Plasma Physics

There’s been a lot of activity in the western limb (right-side) of the Sun these past few days. Two filament eruptions and possibly a third, slow-moving CME on the far-side of the Sun.

This active region (AR 12738) on the Sun's eastern limb is home to a cute unipolar sunspot.

Merry Xmas!

Image credit: MSFC/NASA

New active region producing C-class flares

Finally! An eruptive new flare region is rotating into view!

Multispectral SunDay

B-class flare from solar active region 12703

C-class (4.6) flare eruption on the eastern limb of the Sun.

Filament liftoff followed by coronal dimming (black regions) and post-eruptive arcades (March 6, 2018).

Sunspot region AR2699 is back! AR2699 produced a long-duration C-class flare, and an Earth-directed CME on its previous rotation but now it’s just a plage region. There is also a lovely coronal prominence cavity on the south-east limb of the Sun.

Active region 12700 produced a small B-class flare on Feb. 28.

The evolution of a weak active region on the Sun. Region 2700 is a simple beta (bipolar) magnetic group. 

Region 2699 produced a long-duration C-class flare and released an Earth-directed CME on Feb. 11-12, 2018. The solar storm arrived at Earth on Feb. 15.

Active region 12699 is rotating out of view over the western limb. So long, and thanks for all the flares (and CME)!