The Zodiacal Light from the Desert

By: Alan Dyer

Mar 19 2013

Tags: , , , , ,

Category: Deep-Sky, Milky Way, Solar System

1 Comment

Focal Length:50mm
ISO:800
Shutter:301 sec
Camera:Canon EOS 5D Mark II

From a dark site the glow of Zodiacal Light rivals the Milky Way in brightness. 

This was the scene every night last week in the evening sky from our New Mexico observing site. The vertical glow of Zodiacal Light was a source of natural light pollution brightening the western sky. I’ve never see it more obvious in the west and this was the perfect season to see it. In March from the northern hemisphere the ecliptic – the plane of the solar system – is angled high into the western sky, almost vertical from the latitude of southern New Mexico.

The Zodiacal Light lies not in our atmosphere but comes from interplanetary space, and follows the ecliptic. What we were seeing was a glow of sunlight being reflected off fine dust particles orbiting the Sun in the inner solar system, likely spread by passing comets like PANSTARRS. I blogged about the Zodiacal Light last month, in photo taken from home in southern Alberta. You can also read about it at the excellent Atmospheric Optics website.

You don’t need to be in the desert to see it, but you do need dark skies. And no Moon in the sky.

At last week’s dark of the Moon period, Jupiter sat at the apex of the Zodiacal Light, just above the Pleiades star cluster. Near the top, right of centre, you can also see a short satellite trail, likely from a flaring Iridium satellite.

– Alan, March 19, 2013 / © 2013 Alan Dyer

 

 

One comment on “The Zodiacal Light from the Desert”

  1. […] The astrophotography adventures of Alan Dyer The Zodiacal Light from the Desert […]


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