Time-lapse video: winter stars traverse the sky in this moonlit night of Alborz Mountains in Iran. Sirius, the brightest star in the entire night sky, is notable above the south. Mars in the constellation Leo rises on the left side. Below the rotating heavens and the setting light of the Moon, cars in the Haraz valley drive between Caspian seashores in the north and the capital Tehran in the south of Alborz. The video is made from a sequence of successive frames during several hours. See this surreal startrail image made from the same sequence.