This page features all problems and possible solutions of the International Astronomy and Astrophysics Competition of previous years. The solutions are mostly example submission of outstanding participants.

- Creativity and problem-solving skills.
- Ability to read and understand scientific content.
- Skills in mathematics for calculation problems.
- Broad knowledge in astronomy and astrophysics.
- Decent understand of the English language.

This International Astronomy and Astrophysics Competition took place for the fifth time in 2023.

Problem Sheet: | Qualification Round 2023 |

(Basic) Solution: | (Basic) Solution |

Problem Sheet: | Pre-Final Round 2023 |

(Basic) Solution: | (Basic) Solution |

Problem Sheet: | Final Round Exam 2023 |

(Official) Solution: | (Official) Solution |

This International Astronomy and Astrophysics Competition took place for the fourth time in 2022.

Problem Sheet: | Qualification Round 2022 |

(Basic) Solution: | (Basic) Solution |

Solution #1: | Example Submission #1 (S. Chatterjee) |

Solution #2: | Example Submission #2 (A. Morshed) |

Problem Sheet: | Pre-Final Round 2022 |

(Basic) Solution: | (Basic) Solution |

Solution #1: | Example Submission #1 (O. Ostapenko) |

Solution #2: | Example Submission #2 (C. Ferrari) |

Problem Sheet: | Final Round Exam 2022 |

(Official) Solution: | (Official) Solution |

This International Astronomy and Astrophysics Competition took place for the third time in 2021.

Problem Sheet: | Qualification Round 2021 |

(Basic) Solution: | (Basic) Solution |

Solution #1: | Example Submission #1 (R. Rabbani) |

Solution #2: | Example Submission #2 (P. Thakur) |

Problem Sheet: | Pre-Final Round 2021 |

(Basic) Solution: | (Basic) Solution |

Solution #1: | Example Submission #1 (A. Sifat) |

Solution #2: | Example Submission #2 (S. Patil) |

Problem Sheet: | Final Round Exam 2021 |

(Official) Solution: | (Official) Solution |

This International Astronomy and Astrophysics Competition took place for the second time in 2020.

Problem Sheet: | Qualification Round 2020 |

(Basic) Solution: | (Basic) Solution |

Solution #1: | Example Submission #1 (G. Tejaswi) |

Solution #2: | Example Submission #2 (Y. Amri) |

Problem Sheet: | Pre-Final Round 2020 |

(Basic) Solution: | (Basic) Solution |

Solution #1: | Example Submission #1 (Y. Amri) |

Solution #2: | Example Submission #2 (S. Sarkar) |

Problem Sheet: | Final Round Exam 2020 |

(Official) Solution: | (Official) Solution |

This International Astronomy and Astrophysics Competition took place for the first time in 2019.

Problem Sheet: | Qualification Round 2019 |

(Basic) Solution: | (Basic) Solution |

Solution #1: | Example Submission #1 (M. A. Ashmawy) |

Solution #2: | Example Submission #2 (A. Anilao) |

Problem Sheet: | Pre-Final Round 2019 |

(Basic) Solution: | (Basic) Solution |

Solution #1: | Example Submission #1 (A. Anilao) |

Solution #2: | Example Submission #2 (T. A. Khan) |

Problem Sheet: | Final Round Exam 2019 |

(Official) Solution: | (Official) Solution |