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.

The Stonehenge landscape, part of the Stonehenge, Avebury and Associated Sites World Heritage Site, is internationally renowned for its complexes of outstanding prehistoric monuments. The A303 trunk road cuts across this landscape, passing within 200m of Stonehenge itself. Highways England is seeking to improve the road so as to remove a bottleneck where it runs through the World Heritage Site, including the construction of a twin-bored tunnel at least 2.9 km (1.8 miles) long. This would eradicate the road and its traffic from the part of the landscape visible from Stonehenge and mean that major highways no longer obstruct the route of the Avenue.

Initial concerns that the western tunnel entrance would be sited on the winter solstice sunset sightline from Stonehenge have been addressed in the latest scheme, but many issues remain to be addressed. In particular, as argued in consultation feedback from a consortium of Stonehenge experts submitted on April 23, there would still be irreparable damage to the wider Stonehenge landscape by building substantial new tunnel approach roads within the World Heritage Site boundary.

At the request of Highways England, a new Scientific Committee, chaired by Professor Sir Barry Cunliffe, has been set up to provide guidance on design and implementation proposals as they are developed and to monitor their delivery so as to ensure minimum impact on the the historical environment and upon the Outstanding Universal Value (OUV) as recognised by UNESCO. Further information and updates are available on the Committee’s website.

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