IOAA 2025: The “International Olympiad On Astronomy And Astrophysics” (IOAA) is the final stage of the “National Standard Examination (NSE)”. In this examination, only those candidates can appear who clear the previous stages i.e. NSEA, INAO, OSC, PDT/ PDC.
This time 16th IOAA Olympiad will be conducted at Kyiv, Ukraine. Candidates who will appear in this exam can get complete information regarding the IOAA 2025.
IOAA 2025 Dates and Host City (Expected)
| Date | Students | Leaders | |
|---|---|---|---|
| Fri, Aug 2 | Whole day | Arrival & registration | |
| Sat, Aug 3 | Morning | Opening Ceremony | |
| Afternoon | Excursion | IBM1 Data analysis discussion | |
| Evening | Free time | Data analysis translation | |
| Sun, Aug 4 | Morning | Data analysis competition | IBM2 Night observation discussion |
| Afternoon | Free time, Studying the telescopes |
IBM3 Theory discussion | |
| Evening | Night observation (first attempt) | Night obser vation & Theory translation | |
| Mon, Aug 5 | Morning | Excursion | Excursion |
| Afternoon | |||
| Evening | Free time/ Night observation (second attempt) | ||
| Tue, Aug 6 | Morning | Theory competition | IBM4 Day observation/planetarium discussion and translation |
| Afternoon | Free time | IBM5 Team competition discussion and translation |
|
| Evening | Data analysis correction | ||
| Wed, Aug 7 | Morning | Daytime observation / planetarium competition | Excursion |
| Afternoon | Team competition | ||
| Evening | Farewell party | Theory & Night observation correction, Farewell party |
|
| Thu, Aug 8 | Morning | Excursion | IBM6 Organisational discussion, final meeting |
| Afternoon | Moderation | ||
| Evening | Daytime observation /planetarium corrections, Theory corrections |
||
| Fri, Aug 9 | Morning | Free time by Lake Balaton | Moderation |
| Afternoon | Free time | IBM7 Scoring & IBM8 Final meeting | |
| Evening | Closing ceremony | ||
| Sat, Aug 10 | Whole day | Departure | |
Stages Required to Clear For Appearing in IOAA Exam
The IOAA exam is the final stage i.e. 5th Stage. To appear in this exam candidates need to clear the previous four stages i.e. Stage 1 (NSEA), Stage 2 (INAO), Stage 3 (Pre Departure Camp), Stage 4 (Orientation Cum Selection Camp), Stage 5 (International Olympiad).
What are the Participating Rules for Countries
The participating rules for the countries are given below:
- Those students who will participate in the exam their age must be less than 20 years.
- One team consisting of a total of 5 candidates only.
- The International Board members are treated as contact persons for the participating countries in concern of the affairs of the International Olympiad on Astronomy and Astrophysics.
- One team needs to be sent to the school by participating countries.
- After the arrival of each team, the external head will hand over the organizers a list of contestants with their personal details such as DOB, first name, family name, home address and address of the school attended and certificates (in English) from the schools confirming their attendance and the year of competition.
Details Regarding Competition
The competition is divided into 2 parts i.e. theoretical and practical.
| Theoretical Competition | Practical Competition |
|---|---|
| This consists of short and long questions i.e. 15 short questions and 2/3 long answer | The organizer may provide a set of the task which consists of:
|
Note:
Time Allotted: 5 hrs (for theoretical) and 5 hrs (for practical)
Duration: 10 days including arrival and departure days.
While solving the problems, candidates can use non-programmable pocket calculators which is brought by themselves.
Marking Scheme
The marking scheme of IOAA is as follows:
| Name of The Part | Marks |
|---|---|
| Theoretical Part | 50% of the total marks |
| Practical Part | 50% (25% data analysis and 25% observation) of the total marks |
IOAA 2023 Syllabus
The syllabus of IOAA is given below under the table.
| Name of The Chapter | Name of The Topics |
|---|---|
| Basic Astrophysics | |
| Celestial Mechanics |
|
| Electromagnetic Theory & Quantum Physics |
|
| Thermodynamics |
|
| Spectroscopy and Atomic Physics |
|
| Nuclear Physics |
|
| Coordinates and Times | |
| Celestial Sphere |
|
| Concept of Time |
|
| Solar System | |
| The Sun |
|
| The solar system |
|
| Space Exploration |
|
| Phenomena |
|
| Stars | |
| Stellar Properties |
|
| Stellar Interior and Atmosphere |
|
| Stellar Evolution |
|
| Stellar Systems | |
| Binary Star systems |
|
| Exoplanets |
|
| Star clusters |
|
| Milky way galaxy |
|
| Interstellar Medium |
|
| Galaxies |
|
| Accretion Processes |
|
| Cosmology | |
| Elementary Cosmology |
|
| Instrumentation and Space Technologies | |
| Multi-wavelength Astronomy |
|
| Instrumentation |
Astrometry |
IOAA Previous Year Papers
We are providing here the previous year papers of IOAA. The previous year papers help the candidate to know the idea about the examination patterns and the idea of the question which come in the exam. The IOAA Question Paper is given below under the table.
| Question Paper | Solution |
|---|---|
| IOAA 2018 | IOAA 2018 (Theory) |
| IOAA 2017 | IOAA 2017 (Theory) |
| IOAA 2016 | IOAA 2016 Solutions |
IOAA 2023 Results
After the Olympiad the result of IOAA will be released on the official website. Candidates are able to check their IOAA examination result on the official site of IOAA or they can click on the link to check their result. The IOAA 2025 Results consists of the status of the candidate’s performance, Rank and also few more important details.
We provided here complete information regarding the IOAA. If you have any query, feel free to contact us through the comment box given below. We will reply to your queries as soon as possible.
IOAA: Official Site
i want to register for the ioaa exam 2021
when I searched for this it is saying for pre registration what is that. i am in std 12 now