The International Olympiad on Astronomy and Astrophysics (IOAA) is an annual astronomy and astrophysics competition for high school students. It is one of the international science olympiads. The Olympiad was founded from a dissidence inside the International Astronomy Olympiad, in order to increase the scope of the organization.

History

Summary

The 1st IOAA-Jr, for the students under 16 years of age was held in Romania from 30 October to 7 November 2022. The 2nd IOAA-Jr was held in Volos, Greece from 24 to 30 September 2023, and its age restriction was lowered to students under 15. The 3rd IOAA-Jr will be hosted by Kathmandu, Nepal from 3 to 10 October 2024.

Participating Countries

Source: https://www.ioaastrophysics.org/participating-countries/

Results

Source: https://www.ioaastrophysics.org/results/

Prize winners

High-scoring participants

The following table lists multiple (triple and more) gold medal winners of IOAA with their ranks and corresponding years. Note: Several countries (e.g. India, Indonesia, Iran, Thailand) do not allow their students to contest in IOAA more than two times, even if they are eligible. Thus, statistics from those countries is not included in the table above.