Last night during Nautical Twilight (about 8:40 pm MDT) the International Space Station (ISS) made a highly visible pass over Creede, moving from SE to NE. The sky was too bright for a long exposure, but I was able to capture it with a few short exposures.
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| ISS over Snowshoe Mountain. 1.3-sec exposure. |
About 30 minutes later Jupiter and Venus were shining brightly over the Bristol Head ridgeline during the onset of astronomical twilight.
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| Lens: Lumix 20mm f/1.7 + Hoya Sparkle-6 filter |
After Venus set, Jupiter was the brightest object in the sky:
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| Lumix 20mm + Sparkle-6 filter |
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| Leica Summilux 25mm f/1.4 + softon filter |
In this image, Pollux and Castor are to the right above Jupiter, Procyon is to the lower left, and the "Beehive Cluster" (M44) is at the top of the frame.
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| Auriga setting over Bristol Head. Lumix 20mm + sparkle filter |
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| Corona Borealis. Leica 25mm + softon filter |
In this image of the constellation Corona Borealis, the dotted circle marks the location of the recurrent nova T CrB. This star is currently at magnitude 10.1, but when (or if) it erupts again, it is expected to increase in brightness by a factor of a thousand, or more. Of course, as the SEC warns, "past performance does not guarantee future results".
The measured sky brightness at the conclusion of this outing (about 10 pm) was 21.62 mpsas, a very good (meaning very dark) value.






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