September 21, 2018 on 11:34 am | In Sun | Comments Off

Clear skies on the last observation day of the Summer of 2018.  Seeing is great.  No spots and Solar Activity remains Very Low.  Today full disk images in the three wavelengths, as well as close ups of two small filaments in the northern hemisphere  and two nice prominences at the NE and NW limb in Ha.

2018-09-21-1236_2-TR-540nm.jpg 2018-09-21-1243_6-TR-Ha.jpg 2018-09-21-1239_2-TR-CaK.jpg

2018-09-21-1246_9-TR-Ha-NE-SWProms.jpg 2018-09-21-1245_5-TR-Ha-NEFilam.jpg 2018-09-21-1245_3-TR-Ha-NWFilam.jpg

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