The northern sky seemed unusually bright last night. The camera revealed that an auroral display was in progress. The color was not visible to the eye. These images were obtained with a Sony A7iii + Nikon Ai-S 20mm f/2.8 lens. The time was about 11:30 pm MDT.
The smoke layer on the horizon is from the Gold Mountain fire near Ouray.
There are some large sunspots about to rotate out of view. Solar activity from this region is probably the cause of this auroral display.
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| Meade 80mm f/5 refractor + Lunt Solar Wedge. |
The Milky-Way view toward the south shows no aurora, but the eastern sky is starting to brighten with moonlight.
A view of the Summer Triangle reveals the pink auroral glow on the northern side of the frame.
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