A Starsphere in Alqueva Dark Sky Reserve

In this “starsphere” we can see the movement of celestial sphere around the northen star Polaris, as it seen from our Earth during a long exposure shot (the perception of this star trails is not visible in real time with our own eyes). The image also shows a dragged part of the winter Milky Way captured from the Rural Hotel Naveterra, in the Alqueva Dark Sky reserve.

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