UPDATE: Leif Svalgaard provides us a magnetic movie (SDO HMI) which I’ve also converted and added below. It’s a real treat too.
This is truly an impressive animation from the folks at the Solar Dynamics Observatory. I’ve converted it to YouTube so more people can watch it. It shows the 5 day time lapse formation of massive sunspot group 1158 from nothing. What’s neat is how the perspective is maintained. I’ve never seen anything quite like this. Less than a week ago, sunspot 1158 didn’t exist. Now it is wider than the planet Jupiter and unleashing the strongest solar flares since December 13th, 2006, including an X-class solar flare that we covered here first on WUWT. Video below.
Solar Magnetics Movie
The HMI (Helioseismic and Magnetic Imager) on the SDO (Solar Dynamics Observatory) caught massive sunspot group 1158 in the process of forming from nothing. It is quite an impressive animation. Animation courtesy of Dr. Phil Scherrer at Stanford via Dr. Leif Svalgaard who writes:
“What to note is how the magnetic field ‘bubbled’ up in a very mixed state [black=negative, white=positive polarity]. Then the two polarities separate and move to areas of like polarity: white to white and black to black, in the process assembling sunspots. Watch also how the incessant convection ‘eats’ away at the boundaries of large, mature spots [late in the clip].”