There were some forecasts of auroral activity for the night of Monday 29 July, but nothing was visible to the unaided eye. The sky was noticeably brighter, however, and a metered reading gave sqml=21.33 mpsas, about 45% brighter than the previous evening. The camera revealed some strong green airglow.
The following images were obtained with a Sony A7iii camera and a 20mm FE f/1.8 G lens, ISO 1600, 30 s.
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Milky Way over the southern end of Snowshoe Mountain. Hoya Softon filter.
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Hoya Sparkle-6x filter
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No filter.
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These images have been color balanced to compensate for the strong green background, but it is still easy to see bands of green and purple at lower elevations. The third unfiltered image also illustrates how difficult it is to see constellation patterns without the use of a diffusion filter to enhance the brighter stars.
In the northwest, bands of green and purple airglow were picked up by the camera:
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Arcturus and the Big Dipper over the Bristol Head ridgeline. Softon filter.
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Some images of the active sun were obtained the next morning:
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The sun in Hydrogen-Alpha light (false color).
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The sun in white light.
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The Hydrogen-alpha image was obtained with a double-stacked Lunt LS50THa solar telescope and a ZWO ASI178mm camera.
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Lunt LS50THa solar telescope.
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The white-light image was obtained with an Astro-Tech AT102ED refractor and a Lunt solar wedge.
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AT102ED refractor set up for solar observing.
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