A picture of the sun this morning shows the sunspot responsible for the flare that caused the massive auroral display on Tuesday. The sunspot is the large one in the upper right quadrant. It is about to rotate out of sight.
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| 13 Nov, false-color image. AT80EDT refractor + Lunt solar wedge. |
The auroral display Tuesday night got progressively better over the course of several hours. At first it manifested as a bright greenish glow on the northern horizon, almost like a false dawn, with barely perceptible red glow filling the northern sky. Eventually, the green glow transformed into green curtain auroras and the larger red glow was visible to the eye. For a while, the Bristol Head ridgeline to the west was silhouetted in front of a bright red glow.  |
| The beginning. Sony A7iii + Laowa 15mm f/2. |
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| An hour+ later. |
Wednesday night was cloudy here in Creede, so there was no follow up to this great display. The sky looks normal tonight, with some airglow at low elevations along the horizon. The measured sky brightness varied from 20.92 to 21.05 mpsas, depending on direction.
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| Western view. Olympus E-M1iii + Leica 9mm f/1.7 + sparkle filter. |
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| Eastern view. |
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