IAO Exam Result

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International Astronomy Olympiad 2021 Result

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The International Olympiad of Astronomy aims to nurture the interest in astronomy among the youngsters. It is an international level science competition that revolves around astronomy. High school students below the age of 20 can take part in the event to solve observational and theoretical problems, data analysis, etc. They can participate individually or in teams. The main areas of the Olympiad are Mathematics, Chemistry and Physics. Read on to get an insight into the International Astronomy Olympiad Results.

The International Astronomy Olympiad Results

The International Astronomy Olympiad 2021 results will be declared after all the stages are cleared and the final competition is held. The result will be released on the official website. The IAO 2021 results will showcase the status of the candidates’ performance, rank and other important details.

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Know How the Rewards are Calculated

Through the popular vote, the international board reserves the right to adjust the cut-off position up to two places in each of the categories mentioned. This means they can include or exclude two students at the boundary of any category.

  • The final number of points scored by the three best contestants is considered 100%.

  • The first prize is awarded to the contestants who score at least 90% of the points. They are awarded diplomas and gold medals.

  • Contestants with 78% or more, but less than 90%, will be awarded the second prize i.e. diplomas and silver medals.

  • The contestants with 50% or more but less than 65% of marks will receive an honorable mention and diplomas.

  • The contestants who will score less than 50% of marks will receive certificates of participation 

  • The participant with the highest score will be awarded a special prize and diploma

The Marking Scheme of the International Olympiad of Astronomy

The practical solutions written by the candidate in the IAO must consist of theoretical analysis, pragmatic execution and complete justification. For your response:


Marks Allotted


50% of the total mark


Makes the remaining 50% of the full marks

  • 25% of marks are kept for data analysis

  • 25% is for observation

The Results in the COVID Situation

Due to the situation of the worldwide pandemic of COVID 19, the IAO authorities have decided to postpone the dates for the events. The NSEA results will be published after the results of other levels announcement. Due to the current chaotic situation, all the dates for the events have been put on hold. That is why the exact International Astronomy Olympiad 2021 India result has not yet been declared by the Olympiad authorities.

Know the Stages of the IAO Competition

The students must note that the International Astronomy Olympiad 2021 result will be declared separately for each stage. To reach the final, you must score well in every stage.

  • Stage I: National Standard Examination in Astronomy (NSEA)

  • Stage II: Indian National Astronomy Olympiad (INAO)

  • Stage III: Orientation cum Selection Camp (OCSC)

  • Stage IV: Pre-departure Training Camp (PDT)

  • Stage V: International Olympiad in Astronomy and Astrophysics (IAO)

Stage Wise Eligibility Criteria

Before you gather any information about the IAO eligibility criteria, here is a stage-wise breakdown of the eligibility criteria.

  • Stage I: National Standard Examination in Astronomy (NSEA)

The eligibility criteria for the 1st stage are the basic need that the participants must fulfil for the IAO eligibility.

  • The students must not be born before 1st July 1999.

  • Students in Class 12 or below are only allowed to take part.

  • A student is allowed to appear for more than one subject of the schedule permits.

  • Stage II: Indian National Astronomy Olympiad (INAO)

  • The students are required to score equal or more than the Minimum Admissible Score, i.e., 40% of the given subject's maximum marks.

  • The applicant must be a citizen of the participating country.

  • Applicants must possess a valid passport.

  • Successful participants from stage I and the exempted students from NSEA are eligible for the 2nd stage. 

The only criterion set for the remaining stages, the 3rd to 5th stage, is that the participant must successfully qualify the second stage to fulfil the IAO eligibility. There are no specific eligibility criteria that a participant needs to follow to climb up the stairs to the final competition of the International Olympiad of Astronomy.

Future Events of the IAO

Olympiad Event



14th IAO

Bogota, Columbia


15th IAO



16th IAO



17th IAO

Minsk, Belarus


18th IAO



FAQ (Frequently Asked Questions)

1. How to Register for IAO?

As said earlier, you have to register for the National Standard Examination in Astronomy first for IAO participation. The first step towards participation is to fill the application form for the IAO 2021 registration. The application form is generally available from September. You can get hold of the form at the NSE Centres spread across the participating countries. 

  • The first step needed for IAO 2021 registration is to find the nearest NSE Centre. 

  • After you find your centre, you take up the step of filling the form.

  • Once you carefully fill in the form for IAO 2021 registration, submit it to the NSE Centre's office.

2. When will the First Stage of IAO Begin?

In this uncertain time of the COVID pandemic, the dates are being put on hold. The last date of the registration of NSE is shifted to 15th September 2021. The original date for the International Olympiad of Astronomy was set to begin on 13th September and was to end on 21st September. Due to the present trying times, the dates are put on a halt, owing to the same condition. The students are expected to keep an eye on both the examinations' official website to know the final dates. Be alert not to miss the last date for the registration.