My last solar observing day for 2011 was November 25, just 28 days from the winter solstice. The Sun manages a maximum altitude of only about 30 degrees above the horizon at this time of year and is mostly hidden behind trees and rooftops from my observing spot. Even though a small two hour window between trees still exists, the colder weather discourages me. My tolerance for winter observing has been severely diminished by 33 freezing years spent in the unheated Randolph College observatory. I probably won't observe again until March or April.
It was unseasonably warm and pleasant on November 25, so I made the most of my brief view between trees. First, look at this mosaic of sunspots and filaments:
|Sunspot 1358(L) and the 1356 group(R) (Click for full detail)|
|Sunspot group 1356(L) and sunspot 1355(R) (Click for full detail)|
Penumbra waves were also visible in sunspot 1355 below during the same time period: