Solar activity has increased over the last few days, as one of the largest Sunspots AR2396 in the recent months is visible on the Solar limb that is facing towards the Earth. In just one day its surface increased by 50%. The growing sunspot group stretches more than 150,000 km from end to end. All by itself, the primary dark core is more than three times the size of Earth and can be observed even by naked eye using the adequate protection. View of the Sunspot and its surrounding in H-alpha light:
Weather here was very unfavorable for any telescopic high resolution imaging of this enormous sunspot. Here is a quick image I took with telephoto lens during my job time.
It has been classified as having a beta-gamma-delta magnetic field and these fields are prone to instability that can produce X-class solar flares. During the rotation around the visible limb of the Sun it was quiet and produced only one major X1 flare.
During imaging the seeing was very poor and was even more obvious while imaging at higher focal ratios.
This giant spot is about to rotate off the face of the Sun, this was probably my first and last shot of it. But this is not the only obvious sunspot currently visible on the Sun. I managed to capture a few other.
Sunspot AR1785 is one of the biggest groups of Solar Cycle 24 in the southern limb. Despite favourable magnetic conditions for X-class solar flare the spot did not produce any strong flare. The following images were recorded in bad seeing 2/10 and windy weather.
Capture and processing : FireCapture, AutoStakkert2, RegiStax6, Gimp