Southern Milky Way Setting & Zodiacal Light

By: Alan Dyer

Nov 19 2012

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Category: Milky Way, Nightscape, Observers & Star Parties

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Aperture:f/2.8
Focal Length:15mm
ISO:1600
Shutter:90 sec
Camera:Canon EOS 5D Mark II

On the eve of the November 14 total eclipse of the Sun, I was able to shoot the Milky Way setting amid the vertical glow of the evening Zodiacal Light.

This scene looks west toward the sunset point, but was taken well after sunset. The Milky Way and the area of Sagittarius where the centre of the Galaxy lies is just setting. The same area of sky contains a vertical pillar of light, very subtle, called the Zodiacal Light. This is sunlight reflected off dust particles orbiting the inner solar system and deposited by passing comets. The Zodiacal Light is best seen in the evening sky on dark moonless nights in spring, no matter what your hemisphere. But in this case it is November, spring in the southern hemisphere.

At left are the two Magellanic Clouds, satellite galaxies of the Milky Way, and visible at their best only from south of the equator. In this case we are at 16° South latitude.

The site is a lookout on the Mulligan Highway inland from Port Douglas where we made for the day before the eclipse and camped out overnight, along with a parking lot full of fellow eclipse chasers. But the morning still brought worrying clouds in the direction of the Sun, so we moved farther north to the site you see in my earlier Great Australian Eclipse blogs.

– Alan, November 20, 2012 / © 2012 Alan Dyer

 

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