Heads up! Aurora alert for Friday night, April 16
The aurora simmers near the bottom of the northern sky around 12:45 a.m. Friday morning, April 16. The green patches were dim but apparent, while the occasional rays were very faint. To see them I had to avert my vision. Details: 35mm lens at f/2.8, ISO 2500, 25 seconds exposure. Bob King The northern lights put in a delicate appearance early Friday morning, April 16 from my moveable, open-air, frog-chorus observatory in Duluth, Minn. While not the kind of display you'd croak about unless you were a frog, it felt good to see them return. I watched from 12:30 - 1 a.m. as the lights sloshed around the bottom of the northern sky. Occasional patches and rays pulsed in and out of view so sluggishly it seemed they simply didn't have the energy. A meteor flashed during this time exposure of the northern lights early Friday morning. At center left you can see the W-shape of Cassiopeia, while the two fuzzy dots to its left are two side-by-side star clusters called the Double Cluster.