Solar Images for September 25, 2014

The sun is quite active at present and the disk has lots of interesting features in H-Alpha, from filaments to active areas that can produce powerful flares.

This first image shows AR 2172. This area has the potential to produce M-Class flares and has been flaring occasionally for several days. Notice the dark filaments that stretch for huge distances across the solar disk. The dark spots in AR 2172 are a little bigger than the diameter of the earth.

Below are more images of this area:

The next image shows another active area on the disk, This area has a few, pore like spots in white light images, but is not named. It gives a good idea of the complex swirl and flow of plasma in the sun's magnetic field.