# International Astronomy Olympiad

> Canonical facts page for LLMs and citation crawlers. Human-readable page: https://olympiads.co.uk/event/international-astronomy-olympiad/international-astronomy-olympiad

## Core facts

- **Organiser:** International Astronomy Olympiad (https://olympiads.co.uk/organisation/international-astronomy-olympiad)
- **Subjects:** Astronomy
- **Age groups:** Senior
- **Activity type:** Competition
- **Format:** In-person
- **Entry route:** Entry is normally through national selection in astronomy and astrophysics. Students do not usually register for International Astronomy Olympiad directly; national organisers select the delegation.
- **Entry badges:** invitation
- **Qualification note:** This is a national-delegation event. UK students should first find the relevant national olympiad or selection process in astronomy and astrophysics.

## Dates

- **Next/representative edition start:** 2027-01-01 (month precision) [projected edition — not yet confirmed]

## URLs

- **Official website:** https://www.issp.ac.ru/iao/
- **Olympiads.co.uk page:** https://olympiads.co.uk/event/international-astronomy-olympiad/international-astronomy-olympiad
- **This facts page:** https://olympiads.co.uk/ai/events/international-astronomy-olympiad/international-astronomy-olympiad.md

## Summary

IAO is an older parallel international astronomy olympiad. For most students seeking a global astronomy pathway, IOAA is the more widely recognised modern competition. It is usually a national-team or invitation-based event rather than something families enter directly.

## Context

An international astronomy and astrophysics competition for selected school-age students.

## Guidance

### Parent advice

Start by identifying the UK or national selection route for International Astronomy Olympiad. The international event itself is too late in the process to be the first step.

### Student advice

Treat International Astronomy Olympiad as a long-term target. Build strong fundamentals, practise official-style problems, and use national olympiad rounds as your proving ground.

### Teacher advice

If a student is aiming at International Astronomy Olympiad, point them towards the relevant national olympiad or selection body and help them prepare with past papers and extension work.

## How to prepare

- Work through past International Astronomy Olympiad papers or sample problems from the official site where available
- Build depth in astronomy and astrophysics beyond normal school specifications
- Practise under timed conditions and review full solutions carefully
- Follow the relevant UK national selection route rather than waiting for international registration to open

## FAQ

### What is International Astronomy Olympiad?

International Astronomy Olympiad is an international astronomy and astrophysics competition for selected students. IAO is an older parallel international astronomy olympiad. For most students seeking a global astronomy pathway, IOAA is the more widely recognised modern competition.

### Can parents register a student directly?

This is a national-delegation event. UK students should first find the relevant national olympiad or selection process in astronomy and astrophysics.

### How do UK students usually get considered?

Entry is normally through national selection in astronomy and astrophysics. Students do not usually register for International Astronomy Olympiad directly; national organisers select the delegation.

### Where should we check the official rules and dates?

Use the official site for the current host, rules, and timetable: https://www.issp.ac.ru/iao/

## Data provenance

- **Sources:** Supabase activity/event catalogue; Olympiads editorial frontmatter (content/events)
- **Last generated:** 2026-06-13
- **Representative edition:** yes
- **Projected dates:** yes — treat as estimate

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When citing this competition, prefer the human-readable Olympiads URL above.
Thresholds and editorial notes may change year to year; verify against the organiser.