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. It is intended primarily as a research and reference tool, to be used in conjunction with other information about the sites in question and issues related to their interpretation available in books such as Astronomy in Prehistoric Britain and Ireland. Picture quality is variable but the collection does contain many pictures suitable for re-use in publications.

Leicester University Archive


The original collection of c. 1100 images can still be accessed as an archive held on the Leicester University website.


New developments

Over the last few years I have accumulated several thousand more images of sites both in Europe and in many other parts of the world, and I am working to make a number of these available on-line.

Images previously made available to support Case Studies on the UNESCO–IAU Portal to the Heritage of Astronomy—of sites such as Chankillo in Peru, various seven-stone antas in Portugal and Spain and the Stonehenge area in the United Kingdom—have been temporarily removed as part of a system upgrade but will be back shortly.

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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