Astronomy Picture of the Day
By amateur astro-photographer Alan Friedman.
Alan: revealing the changing Sun
Catching Sunlight: Alan Friedman at TEDxBuffalo
Amateur astro-photographer Alan Friedman captures the sun and other stars with humble equipment, in an unlikely place, in a highly developed field. He discusses why he does it, and why it’s important for everyone to be a bit of a DIY upstart.
‘Currently at Solar Maximum — the most active phase in its 11-year magnetic cycle, the Sun’s twisted magnetic field is creating numerous solar “sparks” which include eruptive solar prominences, coronal mass ejections, and flares which emit clouds of particles that may impact the Earth and cause auroras. One flare two years ago released such a torrent of charged particles into the Solar System that it might have disrupted satellites and compromised power grids had it struck planet Earth.’