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A Spinning Sky - April 08 free photo

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Stars appear to whirl in the sky, circling Polaris, while a hint of northern lights dances on the horizon. In this "star trails" photo, taken in Northern Montana, the revolution of our Earth gives the illusion that the stars themselves are spinning around our polar axis. This photo combines many 40-second exposures, taken back-to-back by remote, to show our night sky's movement as seen with a camera facing north.