Aurora Borealis in Astronomical Twilight
We lost night on April 8th but still have astronomical twilight until April 25th which looks like dark. Here are a few pictures from last night.


The last one is to show that the northern lights are still visible with a bright moon at this time of year. It is possible to see this phenomenon even in nautical twilight, so until May 15th if the effects are strong enough.
Very beautiful.
ReplyDelete