Loughcrew Autumn Equinox 2006.

Photographs by Ken Williams - ShadowsandStone.com

Sunrise at Loughcrew Cairn V
Sunrise at Loughcrew Cairn V - September 22nd 2006.

Equinox sunbeam in the passage of Cairn T
Equinox sunbeam in the passage of Cairn T - Loughcrew.

The Backstone of Cairn T illuminated by the autumn equinox sun
The Backstone of Cairn T illuminated by the equinox sun.

A beam of light at Loughcrew
As the sun rises in the sky the beam of light moves across and down the backstone.

Loughcrew Sunbeam
Sunbeam moving from the backstone to the sill stone and the stones in the main chamber.

Light Years Ago by Tim O'Brien Light Years Ago: A Study of the Cairns of Newgrange and Cairn T Loughcrew, Co. Meath, Ireland by Tim O'Brien shows that the symbols of the sun engraved on the backstone of Cairn T at Loughcrew are precisely positioned to measure solar movement. A beam of light from the rising sun around the time of the March and September equinoxes is mapped on the backstone.

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Loughcrew Video - Spring Equinox 2005

The progress of the sunbeam on the backstone inside Cairn T at Loughcrew was video recorded at sunrise on the morning of March 23rd 2005. The 50 minute video has been compressed to 1 minute 46 seconds and included in the following YouTube Video.

Gossan Stones Equinox Sunrise Alignment

Gossan Equinox Sunrise Alignment
The Equinox Sunrise is framed by the Gossan Stones in the Wicklow Mountains.

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