The motion of the sky (caused by the Earth constant rotation) is captured as star trails in a time exposure image (a photo sequence). It is photographed from Devasthal Peak in the Himalayas, overlooking villages in Uttarakhand, northern India. The brightest trail is by the white-blue star Canopus in the southern constellation of Carina. From this low-northern latitude it rises a few degrees above the southern horizon. A meteor also streaks the middle of the view. If you look carefully at the horizon the brightest star trails appear to deform at rising. This is caused by atmospheric refraction, similar to deformed shapes of the sun or the moon at the horizon.



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