ナショナルジオグラフィックのインスタグラム(natgeo) - 10月19日 05時34分

Photo by @babaktafreshi / I started photographing the night sky in early 1990s, in high school. I tried digital cameras for the first time in early 2000s, and by 2007 I had completely switched over. This is from March 2007, one of my last analog photos, on Ektachrome 100 slide film. Film cameras, specially medium format, are still pretty good for long exposures like this, revealing rich and natural star colors. If you have one around, give it a try under dark skies. On this starry desert night, far from cities, the long exposure (three hours) shows colorful trails of the constellation Orion and the bright star Sirius. They are moving across the sky as the Earth's rotation slowly turns the sky above us. The tamarix trees in the foreground are typical vegetation in Khar Touran National Park, in eastern Iran, one of the last refuges of the critically endangered Asiatic cheetah. Explore more of the world at night with me @babaktafreshi. #twanight #earth #fineart #longexposure

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