Tootfinder

The next two #Bochum (Germany) #sunsets, yesterday and today: the #sunspot group (1)4114 remains strong.

The role of the Lorentz force in sunspot equilibrium: #sunspots - 400-year-old mystery now solved by astrophysicists at the Freiburg Institute of Solar Physics (KIS): https://www.leibniz-kis.de/en/news/article/die-stabilitaet-von-sonnenflecken-wissenschaftler-und-wissenschaftlerinnen-am-institut-fuer-sonnenphysik-kis-in-freiburg-loesen-ein-400-jahre-altes-raetsel/

During today's #Bochum #sunset the actually not that big #sunspot (1)4114 was at times enlarged by atmospheric optics, just above the crane and right on the horizon.