Clive Ruggles


… is the study of beliefs and practices relating to the sky in the past, especially in prehistory, and the uses to which people's know- ledge of the skies was put.


Professional bodies

Free software tools

Basic declination calculator


by Andrew Smith

See the Tools page for more info


Springer Handbook (2014):


Ocarina Books publishes and distributes books relating to archaeo- and ethnoastronomy



This list of my books and selected papers and articles contains links and downloadable copies where available.

Image collection

Since 1995 I have maintained an on-line collection of photographs of archaeological and archaeoastronomical interest from around the world. It was intended primarily as a research and reference tool, developed in relation to ongoing research about the sites in question, and was available for many years in an archive held on the Leicester University website.



This archive has now been removed, although two “virtual walkabouts” remain available on the Archaeology Data Service. Over the last few years I have accumulated several thousand more images, some of which can be seen in case studies on the UNESCO–IAU Portal to the Heritage of Astronomy.

I am now working to make the whole database available on-line as part of upgrades to this site and to My colleagues and I are hoping to have this completed and in place by sunmer 2023.


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Astronomical heritage

Portal to the Heritage of Astronomy

Read more on the UNESCO–IAU Portal to the Heritage of Astronomy and about astronomical heritage in general

Free downloads

ICOMOS–IAU Thematic Studies on Astronomical Heritage

No. 1 (2010): See here for more information or click here to download a copy directly (46 Mb)

No. 2 (2017): See here for more information or click here to download a copy (19 Mb)


Astronomical World Heritage


Download a copy of an article published in A&G (Aug 2019 issue)

Stonehenge and Ancient Astronomy


Download a copy of the Royal Astronomical Society’s factsheet

Alice Ruggles Trust

If you are looking for things related to Alice and/or information about stalking, please visit the Alice Ruggles Trust website