Hour of the Blue Snow

Another thing I’ve been having fun photographing up here is the “blue hour.”

At lectures, I learned that the blue hour is the period of twilight in morning or evening, when the sun is at a significant depth below the horizon and residual, indirect sunlight takes on a predominantly blue shade. The blue hour always happen at a latitude of 55 degrees or higher (Churchill is above 58), and it’s especially evident here because of the snow.

The blue hour around the CNSC:


How the rocket launcher looks around sunset, with normal light:


How it looks a short while later, during the blue hour:



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