by Chris Peterson » Tue Jan 03, 2012 4:05 pm
Sam wrote:Have auroras bright enough to be seen in the daytime ever been reported or recorded?
I've seen anecdotal reports, but I'm skeptical. "Daytime" does not need to mean "daylight", however. There is such a thing as a "daytime aurora", which occurs near the poles in the direction of the Sun, but when the Sun is below the horizon (normally, auroras are opposite the Sun).
Daylight auroras can sometimes be imaged with ordinary cameras and simple filters, and are regularly observed instrumentally by their effect on radio, radar, and with UV imaging.
[quote="Sam"]Have auroras bright enough to be seen in the daytime ever been reported or recorded?[/quote]
I've seen anecdotal reports, but I'm skeptical. "Daytime" does not need to mean "daylight", however. There is such a thing as a "daytime aurora", which occurs near the poles in the direction of the Sun, but when the Sun is below the horizon (normally, auroras are opposite the Sun).
Daylight auroras can sometimes be imaged with ordinary cameras and simple filters, and are regularly observed instrumentally by their effect on radio, radar, and with UV imaging.