Bangladesh Astronomy and Astrophysics Olympiad

The Bangladesh Astronomy and Astrophysics Olympiad (BDOAA) is a national competition for students in Bangladesh, serving as a pathway to selection for the International Olympiad on Astronomy and Astrophysics (IOAA). The competition tests theoretical knowledge, observational skills, and problem-solving abilities in astronomy and astrophysics. Top performers from BDOAA proceed to orientation camps and further selection rounds for international representation.

2025
National Senior 120 min → National Senior Problems
Problem 1
Metonic Photography National Senior
Problem 2 (20 pts)
Double Satellite National Senior
Problem 3 (16 pts)
The Universe at Reionization National Senior
Problem 4 (18 pts)
AGN 2778 National Senior
Problem 5 (24 pts)
Motion of the Stars National Senior
Problem 6
Planetary Parade National Senior
2024
National 120 min → National Problems
Problem 1
Despawning the moonlight! National
Problem 2
Moon Again National
Problem 3
In astronomy, everything is a metal! National
Problem 4
780 days of observation National
Problem 5
Butch Cat is Lost Again National
2023
National 90 min → National Problems
Problem 1 (5 pts)
Phases of Moon and Mercury National
Problem 2 (14 pts)
Dimensions of Blackhole National
Problem 3 (20 pts)
Rotation Rate of a Pulsar National
Problem 4 (8 pts)
Measuring the Astronomical Unit with the Venus Transit National
Problem 5 (8 pts)
Robinson Crusoe: Lost in the sands National
2022
National Problems
Problem 1 (12 pts)
Lunar Eclipse National
Problem 2 (8 pts)
The First Interstellar Comet National
Problem 3 (10 pts)
Globular Cluster National
Problem 4 (10 pts)
Earth Shine National
Problem 5 (23 pts)
Retrograde Motion National
2021
National Problems
Problem 1 (7 pts)
Arman's digital Observation National
Problem 2 (7 pts)
Analysis of a Constellation image National
Problem 3 (10 pts)
Conicalbeeminator National
Problem 4 (10 pts)
Jack in a Well National
Problem 5 (19 pts)
An Introduction to Data Analysis National
2020
National Senior 180 min → National Senior Problems
Problem 1 (7 pts)
Astronomical Time! National Senior
Problem 2 (9 pts)
Planet around HD 63454 National Senior
Problem 3 (14 pts)
Sun Rays and Solar Bodies National Senior
Problem 4 (11 pts)
Planet Observations Using Skymaps National Senior
Problem 5 (13 pts)
Sirius National Senior
Problem DA
Hubble's Law National Senior
Problem OM
Star Charts National Senior
2019
National 180 min → National Problems
Problem 1 (10 pts)
Radiation pressure in Main Sequence Star National
Problem 2 (11 pts)
Stellar magnitudes National
Problem 3 (12 pts)
Weird Planet! National
Problem 4 (8 pts)
Nebula Expansion National
Problem 6 (10 pts)
Tidal Force National
Problem 7 (22 pts)
Period-Distance relationship of exoplanets National
Problem 8 (10 pts)
Sky Map 1 National
Problem 9 (7 pts)
Sky Map 2 National
2018
National 150 min → National Problems
Problem 1 (10 pts)
Evolution of a Comet National
Problem 2 (6 pts)
Eclipsing Binary National
Problem 3 (8 pts)
Transfer Orbit National
Problem 4 (10 pts)
Planetary Nebula National
Problem 5 (25 pts)
Binary Star National
Problem DA (22 pts)
Cepheid Variables National
Problem OM (22 pts)
August Sky National