October 21, 2017 on 8:48 pm | In Sun | Comments Off

Thin Cirrus clouds and wide spread contrails today.  However managed to get a relative clear area to image. Solar Activity is Medium with two M-class flares in the last two days.   Following twelve spotless days which were interrupted briefly for one day by a tiny spot, we see a relative nice sized area coming around the Eastern limb. The huge prom from yesterday has now turned partly earth side so we can nicely see how a prominence transforms into a filament when it levitates over the earth facing surface. We also see a nice prom following the new area.  To round it off for today, the three areas with filaments are still nicely visible and have not seen much deterioration.

2017-10-21-1515_4-TR-540nm-NN.jpg 2017-10-21-1521_2-TR-Ha-NN.jpg 2017-10-21-1530_5-TR-CaK-NN.jpg

2017-10-21-1518_0-TR-540nm-NN.jpg 2017-10-21-1525_7-TR-Ha-EPromNN.jpg 2017-10-21-1530_5-TR-CaK-NN-Crp.jpg

2017-10-21-1523_9-TR-Ha-SEFilament.jpg 2017-10-21-1523_2-TR-Ha-Filam.jpg 2017-10-21-1523_5-TR-Ha-NFilam.jpg

2017-10-21-1527_2-TR-Ha-NEFilaProm.jpg

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