Sunspot region 3615 is now past center and rotating out of view, but it has been the source of a lot of activity: https://news.ycombinator.com/item?id=39796973

Sunspot region 3615 is now past center and rotating out of view, but it has been the source of a lot of activity: https://news.ycombinator.com/item?id=39796973 https://news.ycombinator.com/item?id=39796973