2017 March 28 Sun
AR12644, moving towards the meridian, has developed a lot, showing many spots , strong flares and filaments.The very active flaring region near the east limb is now AR12645.Many flares/filaments show up during the short observation.The small patch of palges near the west limb has developed into AR12646.Many filaments are seen.
AR12643 also shows many filaments together with the plages.
2 major prominences show up on the SEE and NNE limb.
Telescope: AP Starfire EDT 155 mm f/9.
stopped to 50 mm for disc images, with 4X telecentric lens (f/36) for closeups
filter: Solar Spectrum SO1.5/0.3A with CERF prefilter
Camera: Imperx 4M15
North is up, and east to the left.
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