List

BDOAA Problems and Solutions

Bangladesh's astronomy olympiad, the route to the country's IOAA team. Here are the national round papers from 2018 to 2026, with the solutions of 2026.

2026

Bangladesh

Problems4 problemsProblemsSolutions
  • 1Occultationsnot published
  • 2Olbers's Paradoxnot published
  • 3Astrometric Imaging and Binary Inferencenot published
  • 4The Lost Years Written in the Starsnot published

2025

Bangladesh

Problems6 problemsProblems
  • 1Metonic Photographynot published
  • 2Double Satellitenot published
  • 3The Universe at Reionizationnot published
  • 4Agn 2778not published
  • 5Motion of the Starsnot published
  • 6Planetary Paradenot published

2024

Bangladesh

Problems5 problemsProblems
  • 1Despawning the moonlight!not published
  • 2Moon Againnot published
  • 3In astronomy, everything is a metal!not published
  • 4780 days of observationnot published
  • 5Butch Cat is Lost Againnot published

2023

Bangladesh

Problems5 problemsProblems
  • 1Phases of Moon and Mercurynot published
  • 2Dimensions of Blackholenot published
  • 3Rotation Rate of a Pulsarnot published
  • 4Measuring the Astronomical Unit with the Venus Transitnot published
  • 5Robinson Crusoe: Lost in the sandsnot published

2022

Bangladesh

Problems5 problemsProblems
  • 1Lunar Eclipsenot published
  • 2The First Interstellar Cometnot published
  • 3Globular Clusternot published
  • 4Earth Shinenot published
  • 5Retrograde Motionnot published

2021

Bangladesh

Problems5 problemsProblems
  • 1Arman's digital Observationnot published
  • 2Analysis of a Constellation imagenot published
  • 3Conicalbeeminatornot published
  • 4Jack in a Wellnot published
  • 5An Introduction to Data Analysisnot published

2020

Bangladesh

Problems7 problemsProblems
  • 1Astronomical Time!not published
  • 2Planet around HD 63454not published
  • 3Sun Rays and Solar Bodiesnot published
  • 4Planet Observations Using Skymapsnot published
  • 5Siriusnot published
  • 6Hubble's Lawnot published
  • 7Star Chartsnot published

2019

Bangladesh

Problems8 problemsProblems
  • 1Radiation pressure in Main Sequence Starnot published
  • 2Stellar magnitudesnot published
  • 3Weird Planet!not published
  • 4Nebula Expansionnot published
  • 5Tidal Forcenot published
  • 6Period-Distance relationship of exoplanetsnot published
  • 7Sky Map 1not published
  • 8Sky Map 2not published

2018

Bangladesh

Problems7 problemsProblems
  • 1Evolution of a Cometnot published
  • 2Eclipsing Binarynot published
  • 3Transfer Orbitnot published
  • 4Planetary Nebulanot published
  • 5Binary Starnot published
  • 6Cepheid Variablesnot published
  • 7August Skynot published