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EarthSky Community Photos
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Frank Lu
Arlington, Texas, USA
Arlington, Texas, USA
07/19/2020
09:55 pm
09:55 pm
Nikon Z6, f/5.6, 300 mm, ISO 400, 13 s
Cropped
A long, 13 s exposure of the Coathanger asterism reveals that the stars are of different colors from red, yellow to blue, indicating that they are at different temperatures.
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