Two images of a large complex Active Region. Sunspots are classified according to a 3 letter code – for this region the classification is:
F – A group of spots that are bipolar that have spots with penumbrae on both sides of an elongated group. The group length is >15 degrees of heliographic longitude
k – Asymmetric penumbra, >2.5 degree in N-S diameter
c – Compact distribution – many spots between leader and follower with at least one mature penumbra.
Numerous light bridges can be seen crossing the dark umbral regions and a few umbral spots can be seen inside the dark umbrae.
I have used a two stage Lucy Richardson deconvolution process on the zoomed image to sharpen it up.
1000/102mm refractor (TeleVue x3 Barlow for close-up)
Baader Herschel wedge
Skyris 274m CCD camera with Baader UV/IR cut filter
Ioptron ZEQ25GT mount
Bag flats used to remove spots and dust.