What is AstroAlert – Sky Events in Your Pocket?
AstroAlert is your personal sky-watch assistant. It tells you exactly which satellites, planets, comets, and deep-sky objects will pass right above your location in the next 24 hours — including spectacular zenith events above 70°. Powered by NASA/JPL data, it combines real-time calculations with educational content, a full astronomy glossary, and detailed object sheets. The sky above you, revealed with precision.
Problem
Users currently need to manually track or predict satellite and celestial events using fragmented tools or multiple apps, which are time-consuming, lack real-time precision, and offer limited educational context.
Solution
A mobile app (AstroAlert) that lets users track real-time satellite, planet, comet, and deep-sky object movements using NASA/JPL data, receive alerts for events like zenith passes above 70°, and access educational content and glossaries.
Customers
Astronomy enthusiasts, amateur astronomers, astrophotographers, and educators (aged 18–45, tech-savvy, location-aware) who regularly observe or document celestial events.
Unique Features
Combines NASA/JPL data with real-time calculations, zenith event alerts (above 70°), educational glossaries, and detailed object sheets for immersive learning.
User Comments
Accurate and timely notifications for ISS sightings
Educational content enhances stargazing experience
Zenith event alerts are unique and useful
Interface could be more intuitive
Request for expanded historical data features
Traction
Launched on ProductHunt with 600+ upvotes, ~5,000+ active users (estimated via app store ratings), unpublicized revenue but offers a $4.99/month premium tier.
Market Size
The global astronomy app market is projected to reach $8.7 billion by 2027 (Statista, 2023), driven by growing amateur astronomy and astrophotography.
