About Astrolemma
Berkh
IOAA 2026 participant
Astrolemma is created and maintained by Berkh, a member of the Mongolian team for the 2026 International Olympiad on Astronomy and Astrophysics.
Preparing for an astronomy olympiad usually means, from my experience, juggling a dozen resources. It gets a little frustrating to navigate through a problem on one site, the simulation on another, and the past paper that explains it buried in a PDF somewhere. Astrolemma puts those in one place, offering fellow students whole immersive website in problem solving and understanding in the fascinating science if astronomy and astrophysics.
How to use it
- Pick a topic, then work the problem before touching the hint. The hint points at the physical idea, not the algebra.
- Solutions stay hidden until you reveal them, so a problem stays worth attempting twice.
- Mark problems as solved to track progress. It is stored in your browser. No account, no sign-in btw.
- The olympiad archives link to thousands more problems with official solutions.