Astronomical Tools
Everything you need to prepare for and enjoy your sky observations
Astronomical Calendar
Don't miss any more celestial events. Eclipses, meteor showers, supermoons, planetary oppositions: all the astronomical events of 2025-2026 that are not to be missed.
- 60+ detailed and verified events
- 8 countries (France, Belgium, Switzerland, Canada, etc.)
- Export calendar (.ics) for smartphone
- Interactive filters by event type
Telescope Guide
From purchase to observation: everything you need to choose, use, and master your telescope. Personalized quiz, 15 models analyzed, comprehensive practical guides.
- Personalized quiz (tailored recommendation)
- 15 telescopes compared (€150-2500)
- 6 practical guides (collimation, setting up, etc.)
- Free calculators (magnification, eyepieces)
Coming soon
New tools are coming soon to enhance your experience
Phases of the Moon
Interactive lunar calendar with detailed phases, best viewing times, and photography tips.
Coming soonISS passages
Receive alerts about International Space Station flybys visible from your location.
Coming soonInteractive Sky Map
Explore the sky in real time with our interactive planetarium. Identify stars, constellations, and planets.
Coming soonObservation Sites
Interactive map of the best observation sites in France: light pollution, accessibility, facilities.
Coming soon