AstroAlert is a precision sky-watching tool that provides real-time information on satellites, planets, comets, and deep-sky objects passing over your location in the next 24 hours. It leverages NASA/JPL data for accuracy and includes educational content like a glossary and detailed object sheets to enhance user knowledge. The app highlights zenith events above 70 degrees for spectacular viewing experiences.
AstroAlert
Know exactly when satellites pass above you.
AstroAlert Introduction
Key Features
- Real-time tracking of satellites, planets, comets, and deep-sky objects
- Educational resources including a full astronomy glossary and detailed object sheets
- Powered by NASA/JPL data for high precision
- Alerts for zenith events above 70 degrees
Use Cases
- Amateur astronomers planning observation sessions for celestial events
- Educators using real-time data to teach astronomy in classrooms
- General public exploring the night sky for casual learning and entertainment
- Photographers timing shots for astrophotography opportunities
Why Startups Use It
Startups in edtech or science communication can use AstroAlert to create engaging educational products and attract users interested in STEM. It offers a unique data integration opportunity for apps focused on outdoor activities or real-time information, helping startups stand out in competitive markets.
Alternative Options
Stellarium, SkySafari, Heavens-Above, NASA Eyes
Frequently Asked Questions
How accurate is the data provided by AstroAlert?
The data is highly accurate as it is sourced from NASA/JPL and updated in real-time with precise calculations.
Do I need any special equipment to use AstroAlert?
No, AstroAlert is designed for use with smartphones or computers and does not require additional equipment for basic functionality.
Is AstroAlert free to use?
The app is available for free with core features, and optional premium features may be offered; check the website for details.
Can I use AstroAlert in any location worldwide?
Yes, AstroAlert uses your device's location services to provide personalized alerts for any geographic position.
Alternative Tools
More About AstroAlert
PricingPaid
Platform
Web
Category DescriptionDigital tools and services related to hardware, physical products, manufacturing, supply chain, and offline scenarios.
Listed DateMar 12, 2026
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