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Astronomy inspires curiosity, wonder and exploration of our Universe. Whether it is fostering a love of science in the hearts of schoolchildren, or challenging researchers to address the Universe’s greatest questions, today’s astronomers play a leading role in delivering the world’s most innovative technological and societal advances.

Over the last hundred years, the IAU community has made discoveries that have transformed the way we view Earth and the wider Universe. Within society’s current challenges and looking to the future, our mission remains as important as ever. With your support, we can achieve even more.

We welcome single or recurring donations of any amount, both of which can be made through our secure payment provider, Whydonate. Thank you very much for your support.

Further information on the IAU Appeal is available here and here.

The International Astronomical Union is registered in France as a not-for-profit organisation, under 1901 law, to promote and safeguard the science of astronomy in all its aspects, including research, communication, education and development, through international cooperation.

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Thank you

We would like to thank our members very much for their generosity which has helped us, so far, support 43 projects targeting 45 countries around the world funded through the IAU’s Office of Astronomy for Development (OAD). Projects include:

Virtual Classroom Under the sky, South America: online sessions to share pedagogical and methodological tools for teaching astronomy. Sessions are available on Youtube (in Spanish).

Online astronomy lessons for students, Ghana: PRAGSAC (Promoting Radio Astronomy in Ghana through School visits and Astronomy Clubs) delivered lessons via Youtube.

Astronomers Without Borders, Nigeria: Astro-Art contest for school children

Astronomy from Archival Data, India and online: training undergraduate and post-graduate students through archival data.


Donations from Dutch taxpayers are deductible from taxable income in the Netherlands.

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In accordance with GDPR and the Data Protection Act, you have the right to access your personal data and request information regarding the respective data processing, and request a copy of the personal data, free of charge.

As a safeguard against abuse, IAU will ask you to provide a proof of identity before providing access to any personal data. If you are not able to provide a proof of identity, IAU reserves the right to refuse to send the personal data.

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Should you wish to exercise your above rights, please contact us at or by mail at:

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Villagers from the northern Indian state of Ladakh stand proudly in front of a sign welcoming tourists to the first Astro HomeStay or AstroStay in the region. At 4276 metres above sea level, the village is one of the best locations for stargazing. Villagers trained on basic astronomy and telescope operations act as night sky guides, attracting tourists to an otherwise remote location not on the tourism map, thus bringing in much needed revenue to the community. The project was supported by the IAU OAD under its annual call for proposals. Credit:Astrostays/GHE


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