September 18, 2017 on 3:55 pm | In Sun | Comments Off

2017-09-18. Clear and stable skies today .  Solar Activity remains Very Low with no flares in the last two days. The only region on the hemisphere, AR2680 covers an area of 80 millionths and still contains 3 sun spots.  The two filaments are still nice to see.  And a prom at the SE limb shows very nicely.

2017-09-18-1315_5-TR-540nm-AR2680.jpg 2017-09-18-1324_7-TR-Ha-AR2680.jpg 2017-09-18-1333_1-TR-CaK-AR2680.jpg

2017-09-18-1318_5-TR-540nm-AR2680.jpg 2017-09-18-1326_6-TR-Ha-AR2680.jpg 2017-09-18-1333_1-TR-CaK-AR2680Crp.jpg

2017-09-18-1319_3-TR-540nm-SELimb.jpg 2017-09-18-1327_3-TR-Ha-EFilam.jpg 2017-09-18-1333_1-TR-CaK-EQuad.jpg

2017-09-18-1326_9-TR-Ha-Prom.jpg 2017-09-18-1328_9-TR-Ha-SEProm.jpg

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