The IAU Commission A1 (Astrometry) and Commission X2 (Solar-System Ephemerides) provide valuable information about “physical position” and “position in time” respectively, mainly to astronomers and space scientists. Astronomers also need to have accurate definitions for concepts such as the celestial equator — the imaginary line on ...

Aug 15, 2024 · The XXXII General Assembly of the International Astronomical Union (IAU) ends today in Cape Town, South Africa, closing out the first flagship meeting of the IAU to take place on the African continent.

IAU Strategic Plan 2020–2030. IAU Code of Conduct. Symposia and Meetings. Membership. Deceased Members. Centre for the Protection of the Dark and Quiet Sky from Satellite Constellation Interference. IAU Catalyst. IAU e-Newsletter Volume 2024 n° 7. Subscribe to the e-Newsletter. IAU Office of Astronomy for Development. IAU Office for Young ...

These Divisions all include one or more IAU Commissions, each focusing on a narrower scientific or organizational theme. All Active IAU Members belong to at least one Division. In order to join a Division the member should contact the IAU Secretariat. For information Divisions please see the Statutes, Bye-Laws and Working Rules pages.

Aug 6, 2024 · 11 February 2022: The IAU is launching three new prizes to be awarded every three years at the General Assembly: the IAU Astronomy Outreach Prize, the IAU Astronomy Development Prize and the IAU Astronomy Education Prize.

IAU Secretariat. The Secretariat is the focal point for all communications concerning the IAU: IAU–UAI Secretariat 98-bis Blvd Arago F–75014 Paris France. The IAU is located on the 2nd floor, offices n°270, 271 and 283. An access map in PDF format can be downloaded here.

6 days ago · The prime purpose for the OYA is to run the IAU program on International Schools for Young Astronomers (ISYA). The OYA was established in 2015 by the Norwegian Academy of Science and Letters (NASL) and the International Astronomical Union (IAU) with the aim to ensure a robust financial and organizational basis for the operation of the ISYA program.

Oct 31, 2023 · The IAU GA 2024 will be held in August 2024 in Cape Town, South Africa, with three core values defining its ethos: accessibility, impact, and environmental sustainability. The official webpage for registration for the XXXII IAU General Assembly (IAU GA 2024) has opened today, 31 October 2023.

The IAU has used the julian century of 36 525 days in the fundamental formulae for precession, but the more appropriate basic unit for such purposes and for expressing very long periods is the year. The recognised symbol for a year is the letter a, rather than yr, which is often used in papers in English; the corresponding symbols for a century ...

The Name ExoWorlds project offers the opportunity to people from all over the world to suggest a name for one exoplanet and its host star.