International Olympiad on Astronomy and Astrophysics

From Wikipedia, the free encyclopedia
IOAA 2012 at Rio Planetarium, Rio de Janeiro, Brazil

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.[1]

The Olympiad was founded from a dissidence inside the International Astronomy Olympiad, in order to increase the scope of the organization.


  • The first Olympiad was held in the city of Chiang Mai (Thailand) from November 30 to December 9, 2007. The International Council, consisting of team leaders, elected a president (Dr. Boonrucksar Soonthornthum, Thailand) and a secretary general (Dr. Chatief Kunjaya, Indonesia) for a five-year term.[2]
  • The second Olympiad was held in 2008, from August 19 to 28, in the city of Bandung (Indonesia). It was attended by representatives of 22 countries.
  • The third Olympiad was held in 2009, from October 17 to 27, in Tehran. An observation tour was conducted in the desert. Representatives of 20 countries took part in the Olympiad.
  • The fourth Olympiad was held in 2010, from September 12 to September 21, in Beijing. 114 participants of the Olympiad came from 23 countries.
  • The fifth Olympiad was held in 2011, from August 25 to September 4, in the Polish cities of Katowice, Chorzów and Kraków. For the first time the Olympiad was held in Europe. Representatives of 26 countries took part in the Olympiad. In Poland, the International Council elected a new president (Dr. Chatief Kunjaya, Indonesia) and a secretary general (Dr. Greg Stachowski, Poland). Regional coordinators were also elected (Dr. Thaís Mothé Diniz, Brazil, for America and Dr. Aniket Sule, India, for Asia).
  • The sixth Olympiad was held in 2012, from August 4 to 13. For the first time the Olympiad was held in America in the Brazilian cities of Rio de Janeiro and Vassouras. Representatives of 28 countries took part in the Olympiad.
  • The seventh Olympiad was held in 2013, from July 27 to August 4 in the Greek city of Volos. The competition was attended by 39 teams from 35 countries, including for the first time teams from the USA, New Zealand, Canada, Malaysia, Armenia, the Republic of Macedonia and Cyprus.
  • The fourteenth Olympiad was supposed to be held in Bogotá, Colombia. However, due to the COVID-19 pandemic, the competition was moved to an online format and Colombia was moved to 2021. This competition was not named IOAA, but GeCAA (meaning Global e-Competition on Astronomy and Astrophysics) and did not count as the 14th IOAA. It was held 23rd September 2020 to 23rd October 2020. Estonia was the host country.


Number Year Host country Host city Absolute winner Countries Represented Website
1 2007  Thailand Chiang Mai  Thailand Suwun Suwunnarat 21 * 1st IOAA, 2007
2 2008  Indonesia Bandung  India Nitin Jain 22 * 2nd IOAA, 2008
3 2009  Iran Tehran  India Nitin Jain 20 * 3rd IOAA, 2009
4 2010  China Beijing  Poland Przemysław Mróz 23 * 4th IOAA[dead link], 2010
5 2011  Poland Chorzów / Katowice / Kraków  Czech Republic Stanislav Fořt 26 IOAA 2011
6 2012  Brazil Rio de Janeiro / Vassouras  Lithuania Motiejus Valiūnas 28 IOAA 2012
7 2013  Greece Volos  Romania Denis Turcu 35 * 7th IOAA Archived 2013-05-15 at the Wayback Machine, 2013
8 2014  Romania Suceava / Gura Humorului  Romania Denis Turcu 42
9 2015  Indonesia Magelang / Semarang  Indonesia Joandy Leonata Pratama 41
10 2016  India Bhubaneswar  India Ameya Patwardhan 42 IOAA 2016
11 2017  Thailand Phuket  Slovenia Aleksej Jurca 44 IOAA 2017
12 2018  China Beijing  Russia Stanislav Tsapaev 39 IOAA 2018
13 2019  Hungary Keszthely & Hévíz  Vietnam Nguyễn Mạnh Quân 46 IOAA 2019
N/A[a] 2020  Estonia[b] N/A  Canada Zhening Li 40 GeCAA
14 2021  Colombia Bogotá (online)  Russia Maksim Permiakov 48 IOAA 2021
15 2022  Georgia Kutaisi  Romania Vlad Ștefan Oros 45 IOAA 2022
16 2023  Poland Chorzów / Katowice  Slovenia Peter Andolšek 52 IOAA 2023
17 2024  Brazil Vassouras TBD
  1. ^ Due to the COVID-19 pandemic, IOAA 2020 was replaced by an online competition: the Global e-Competition on Astronomy and Astrophysics (GeCAA).
  2. ^ The GeCAA was organized by the IOAA International Board with extensive support from the Estonian Astronomy Olympiad Committee.

The 1st IOAA-Jr, for the students under 16 years of age was held in Romania from 30th October to 7th November 2022. The 2nd IOAA-Jr was held in Volos, Greece from 24th to 30th September 2023, and its age restriction was lowered to students under 15.[3]

Participating Countries[edit]




Prize winners[edit]

High-scoring participants[edit]

The following table lists multiple (triple and more) gold medal winners of IOAA with their ranks and corresponding years.

Name Team(s) Years
Denis Turcu Romania 2013 (1st) 2014 (1st)
Stanislav Fořt Czech Republic 2010 (8th) 2011 (1st) 2012 (2nd)
Peter Kosec Slovakia 2010 (5th) 2011 (4th) 2012 (5th)
Daniil Dolgov Russia 2016 (8th) 2017 (3rd) 2018 (11th)
Jindřich Jelínek Czech Republic 2016 (9th) 2018 (5th) 2019 (7th)
Peter Andolšek Slovenia 2021 (29th) 2022 (10th) 2023 (1st)

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.


  1. ^ "About IOAA".
  2. ^ 1st IOAA "1st IOAA". 2007. Archived from 1st IOAA the original on 2008-10-11. Retrieved 2023-03-05. {{cite web}}: Check |archive-url= value (help); Check |url= value (help)
  3. ^ 2nd IOAA JR 2023 Retrieved 1 October 2023. {{cite web}}: Missing or empty |title= (help)

External links[edit]