Loughcrew Autumn Equinox 2004

Waiting for the sunrise outside Loughcrew Cairn T on 21st September 2004

Loughcrew equinox sunrise September 2004
The sun finally breaks through the low cloud at 7:20am. The photograph was taken by the side of Cairn T looking east.

Loughcrew Backstone September 2004
This image photographed at 7:27am shows the beam of equinox sunlight illuminating the left side of the backstone.

Loughcrew Equinox September 2004
This image photographed at 7:32am shows the sunbeam illuminating the centre of the backstone. The dark patch in the centre is a shadow from part of the iron gate at the entrance to the cairn.

Iron gate at entrance to Loughcrew Cairn T
Iron gate at entrance to Loughcrew Cairn T.

Backstone - Autumn Equinox 2004
This image photographed at 7:55am shows the sunbeam moving off the backstone and illuminating the stones to the front and side of the back recess.

Sunbeam - Loughcrew Cairn T
In this image photographed at 8:13am the sunbeam has move to the right of the backstone. Notice the sun symbol illuminated on the front stone of the recess.

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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