This was the Milky Way as it appeared toward the end of a long night of non-stop shooting from Chile. The centre of the Galaxy lies directly overhead and the Milky Way stretches from horizon to horizon. This is one of the sky’s greatest sights, and this is an ideal time of year to see it. But only if you are in the magic latitude zone of 20° to 30° south.
In this shot, another skyglow stretches up from the eastern horizon at left – that’s the Zodiacal Light, so obvious from this latitude. It’s sunlight reflected off comet dust in the inner solar system, and heralds the coming dawn twilight.
My tracking platform – the device that allows a camera to follow the sky for a time exposure – is at lower right, with a second camera taking telephoto lens shots of star clusters in the Milky Way.
I took this shot with the Sigma 8mm fish-eye lens and the Canon 5D MkII camera that was on a fixed tripod – it was not tracking the sky. But the 45-second exposure at ISO 3200 was enough to bring out the Milky Way in all its glory. This frame is one of 660 or so that make up (or will once I assemble it) a time-lapse movie of the Milky Way turning about the pole and rising through the night. The fish-eye format makes it suitable for projection in a planetarium dome.
– Alan, May 2, 2011 / Image © 2011 Alan Dyer
The Amazing Sky 
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Fantastic shot!