'Achterkant' van de zon, zal voor ons zichtbaar zijn en dan tellen vanaf 20 september.
FARSIDE SUNSPOT: A big sunspot appears to be growing on the far side of the sun. Yesterday, the National Solar Observatory's GONG network detected helioseismic echoes from the sunspot's gathering magnetic field. Today, NASA's STEREO-B spacecraft is beaming back images of an active region peeking over the sun's far-eastern limb--exactly where GONG data predicted it would be:
Irene Gonzalez-Hernandez, a solar physicist working on the GONG project, says "I believe this is a large active region belonging to new Solar Cycle 24. The sun's rotation should turn it toward Earth for direct viewing on Sept. 20th."
RR