The Dutch Observatory

December 11, 2013 on 5:52 pm | In Sun | Comments Off

Finally, after two weeks of clouds and rain, a day where the sun showed its face with some relative stable seeing. The number of active regions has increased a lot, however the flare activity is not that high.  A nice prominence also visible at the eastern limb.  Imaged a full disk image and some close ups in Ha. Also imaged the active regions at the eastern limb in visible light through a red filter.