Star Trails over the Dome of the Anglo-Australian Telescope : 1979

Photograph by

David Malin FRPS

About this image

As the Earth spins on its axis, the stars appear to slowly draw out huge arcs in the sky. By using a long time exposure, the stars leave curved trails concentric about the celestial poles. In this image shot in Australia, the bright star closest to the celestial pole is Sigma Octantis. Here the photographer has used a Hasselblad camera and 40mm lens at f/5.6 with a 9.5 hour exposure on ISO200 film. RMIT University, Melbourne & Australian Astronomical Observatory, Sydney, New South Wales, Australia