Old Observatory, Beijing
Welcome to the C41/ICHA website
This website contains latest news and reports as well as further information on the Commission‘s structure, Working Groups, aims, history, recent activities, archival materials and documents.


The Letter of Intent for the new Commission is available here.

A new Working Group on "Archaeostronomy and Astronomy in Culture (WGAAC)" has been set up by Ray Norris. Please check this website.

C41/ICHA meetings at the IAU General Assembly in Beijing
The Commission’s Business Meeting took place on 22 Aug 2012 and a new OC is now in place.
The programme of the science meetings of the Commission and its Working Groups is available. Click here for a downloadable PDF version of the abstracts booklet for these sessions.
Click here to see a picture of Commission members visiting Beijing Ancient Observatory during the IAU 28th General Assembly, 25 August 2012
Proceedings of Venus Transit Conference
The proceedings of the Venus Transit Conference (Tromsø 2012), edited by P.S. Aspaas and C. Sterken are available at the Journal of Astronomical Data, Volume 19(1) 2013

Proceedings of ICOA-7
The proceedings of the International Conference on Oriental Astronomy (ICOA–7) are available from Mitsuru Soma

IAU S278 Proceedings
are now available
Archaeoastronomy and Ethnoastronomy: Building Bridges between Cultures
(the 9th “Oxford” International Symposium on Archaeoastronomy)
Astronomy and World Heritage
IAU Working Group on Astronomy and World Heritage

The Commission’s Astronomy and World Heritage Working Group is working with UNESCO to advance their Astronomy and World Heritage Initiative.The new web portal serving UNESCO’s Astronomy and World Heritage Initiative was launched on August 24 at the sessions of the Astronomy and World Heritage Working Group. The site is a dynamic, publicly accessible database, discussion forum and document repository on astronomical heritage sites throughout the world, even if they are not on UNESCO’s World Heritage List.

ICOMOS–IAU Thematic Study
The printed edition of the ICOMOS–IAU Thematic Study on the Heritage Sites of Astronomy and Archaeoastronomy is now available

SpS5 - IAU GA Rio
The proceedings of the Rio GA Special Session on “Accelerating the Rate of Astronomical Discovery” have been published in Proceedings of Science