Various videos of the sun

Here's a collection of videos of our Sun in action.

The source website describes the following video [7 seconds] as:

"This sequence of extreme ultraviolet images shows the effect of a moderate size (GOES class M) flare on a set of active region loops on the solar disk. The bright crosses seen at the peak of the flare are an artifact of the instrument response not a solar phenomenon. The violent release of energy causes many of the loops to oscillate as well as producing or activating many post flare loops not visible before the event."

Here's a video of a solar flare [11 seconds]:

The following is a time lapse video [48 seconds] of the rotating sun:

The following video [2 min. 39 sec.] is from the Hinode solar exploration mission:

On the granular feature seen on the sun's surface:

"Granules on the photosphere of the Sun are caused by convection currents of plasma within the Sun's convective zone. The grainy appearance of the solar photosphere is produced by the tops of these convective cells and is called granulation.

"The rising part of the granules is located in the center where the plasma is hotter. The outer edge of the granules is darker due to the cooler descending plasma. In addition to the visible appearance, Doppler shift measurements of the light from individual granules provides evidence for the convective nature of the granules.

"The diameter of a typical granule is on the order of 1000km and lasts 8 to 20 minutes before dissipating. Amid the typical granules are supergranules up to 30,000 kilometers in diameter with lifespans of up to 24 hours."

The following image indicates the the size of these granules:

astronomy, cosmology, Hinode, NASA, solar flare, Sun