List

JAO Problems and Solutions

Japan's astronomy olympiad, whose national final picks the country's IOAA team. Here are the final's papers from 2023 to 2026 in English translation, with theory and practical papers from 2024 and solutions up to 2025.

2026

Japan

Theory4 problemsProblems
  • 1Problem 1not published
  • 2Problem 2not published
  • 3Problem 3not published
  • 4Problem 4not published
Practical3 problemsProblems
  • 5Problem 1not published
  • 6Problem 2not published
  • 7Problem 3not published

2025

Japan

Theory4 problemsProblemsSolutions
  • 1Problem 1not published
  • 2Problem 2not published
  • 3Problem 3not published
  • 4Problem 4not published
Practical2 problemsProblemsSolutions
  • 5Problem 1not published
  • 6Problem 2not published

2024

Japan

Theory3 problemsProblemsSolutions
  • 1Problem 1not published
  • 2Problem 2not published
  • 3Problem 3not published
Practical2 problemsProblemsSolutions
  • 4Problem 1not published
  • 5Problem 2not published

2023

Japan

Problems4 problemsProblemsSolutions
  • 1Various Topics Related to the Solar Systemnot published
  • 2Extrasolar Planetsnot published
  • 3Galaxies and Star Formationnot published
  • 4Stellar Clusters and Stellar Kinematicsnot published