Stellar Guesser
A game-like way to learn the sky, from beginner to IOAA gold medal level
About
Stellar Guesser was developed as a tool for learning the night sky in a game-like manner. The default question packs provide a learning path from the very basics to knowledge suitable for contestants aiming to win a gold medal at the IOAA. It is also possible to create custom question packs for a personalised learning experience. There is a large selection of question types, which can for example test your knowledge of deep-sky objects, star designations, constellation borders or focus on skills such as estimating coordinates, distances between objects, magnitudes of stars or identifying missing stars.
Regarding olympiad preparation, the application covers the vast majority of the factual knowledge required for the practical rounds at the IOAA – sky map, planetarium, and telescopes. Of course, there is more to those rounds than just knowing a lot of information, for example being able to point a telescope and some tasks being more focused on measurements. However, being able to find your way around the night sky is usually crucial, or at least very helpful.
Download
You can find the latest release here.
The primary platform is Windows - everything should be fully functional there. There are also releases for Android, which are made to be as functional as possible, with some limitations and workarounds due to the incompleteness of the integration between Android and the frameworks used for development. However, 9.5 times out of 10 these issues are purely visual, not functional (there are workarounds in place for functional issues).
All releases can be found here.
Note: Some releases may include multiple versions for the same platform. Please refer to the release notes to learn what are the differences between those builds and choose the version that suits your needs the best.
Community
Join our community to connect with others, get help with the app, and learn about the sky. We especially welcome your feedback since it helps us refine and improve the app for everyone. Please report any issues you encounter and feel free to suggest new features you would like to see.