Astro photography

Analemma at Keppel Henge

The Analemma Project, 2000 - 2001. I created this photograph over the course of one year, from May 2000 to May 2001. It is a collection of 36 exposures on one film negative of the Sun's position in the sky at exactly 8:30 in the morning during the year. The solar images were captured every ten days on average. The large structure in the foreground is Keppel Henge, a megalithic structure that my friend Bill Loney and I built to mark the year 2000.

Of the several trillion photographs taken since the invention of photography, only about a dozen analemma photographs have ever been made. A detailed description of how it was done is available on the Keppel Henge website. The highest point on the upper left is the summer solstice, and the lowest point on the lower right is the winter solstice. The cross over point on the figure is both April 12th, and August 30th as the Sun's apparent path across the sky ascends and descends respectively.

This photograph has been published in magazines such as Natural History, SkyNews, and The Journal of the Royal Astronomical Society of Canada, as well it has been used in text books on science, mathematics, physics and astronomy around the world.

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Steve Irvine
484068 Cape Road
Georgian Bluffs, Ontario
Canada N0H 2T0
(519) 534 2175