Planet Aurora Borealis
Illuminated by an eerie greenish light, this remarkable little planet is covered with ice
and snow and ringed by tall pine trees. Of course, this little planet is actually planet Earth,
and the surrounding stars are above the horizon near Östersund, Sweden. The pale greenish
illumination is from a curtain of shimmering Aurora Borealis also known as the Northern
Lights. The display was triggered when a giant solar coronal mass ejection (CME) rocked
planet Earth's magnetosphere on January 24th, 2012 and produced a strong geomagnetic
storm. Northern hemisphere skygazers will also recognize the familiar orientation of stars
at the left, including the Pleiades and Hyades star clusters and the stars of Orion. Increasing
solar activity has caused recent auroral displays to be wide spread, including Aurora Australis,
the Southern Lights, at high southern latitudes.