Astronomy Picture of the Day

Rays from an Unexpected Aurora

Bild Note: 4.5 (2 Votes)

⏴ previousBild Upload von 18.02.2016 21:43next ⏵
#105223 by @ 02.01.2008 00:00 - nach oben -
Rays from an Unexpected Aurora

Explanation: This aurora was a bit of a surprise. For starters, on this day in 2002, no intense auroral activity was expected at all. Possibly more surprising, however, the aurora appeared to show an usual structure of green rays from some locations. In this view, captured from North Dakota, USA, a picket fence of green rays stretches toward the horizon. Mirroring the green rays is a red band, somewhat rare in its own right. Lights from the cities of Bismarck and Mandan are visible near the horizon. Note: A German language mirror of APOD is now available.

Credit & Copyright