Friday 29 September 2017

In The Shadow of Giants - 29th September

Despite a different numbering system when an active region rounds the solar limb, these are the same spots and active regions that put on a show with X class flares just 3 weeks ago.  Diminished and magnetically much quieter with stable magnetic fields, these sunspots hold little promise of solar flares however continue to put on a good show for observers world wide as we get ever closer to solar minimum.  Why are we getting these spots in the declining phase of the cycle?  Opposing bands of magnetic activity either side of the equator are violently interacting producing the activity we currently see.  How long will this last for?  Maybe another 11 months before we head into a solar winter before the next cycle starts in a couple of years...