Stars circle above Emberger Alm in Austrian Alps. During 2 hours the Earth rotation has caused startrails around the north celestial pole. Note the North Star or Polaris very close to the celestial pole. Looking carefully at the trails you realize how each star shows a color of its own depending on the star surface temperature.



comments (2)

  • Gita Aminitafreshi Reply

    Very very nice I dont know ho explain my exciment As usuall I proud of you . Impercive,woooooooooo

    April 14, 2011 at 5:23 pm
  • Jana Reply

    Amazing… thank you 🙂

    May 21, 2011 at 2:05 pm

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