Bernd 09/06/2017 (Wed) 20:54:31 No. 10005 del
(25.79 KB 620x349 Sunspots on 5 Sep.jpg)
Well that's one big sunspot. (2673 is the one that caused the flare) But otherwise, the Sun is pretty clear.
Also, it needs to be taken in a context – Sun has been really quiet recently and flares like this seem to be more common in historical records.