Stellarium is a free open-source planetarium software that shows a realistic sky in 3D, just like what you see with the naked...
Best N2YO Alternatives ranked by AI · updated Aug 2026
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N2YO is an online satellite-tracking service that provides real-time positions, orbital data, and visible-pass predictions. It is intended for observers and satellite enthusiasts who need broad coverage and detailed information for specific objects.
Top 6 N2YO alternatives
Heavens Above is a popular website that provides information about satellite and ISS sightings, astronomy events, and space exploration news.
See a Satellite Tonight is a free browser tool that shows when satellites may be visible from a selected location. Its standout...
Pros
- Free and usable directly in a browser
- Interactive visualization is more intuitive than timetable-only trackers
- Useful for casual observers who want quick viewing opportunities
Cons
- Fewer filtering and prediction controls than Heavens-Above or N2YO
- Lacks the broader observing tools found in dedicated astronomy software
- No native mobile app or built-in community features
SatelliteMap.space is a web-based 3D visualization tool for exploring artificial satellites and their orbits around Earth. It is aimed at space enthusiasts,...
Pros
- Provides an immediately visual 3D view of satellite positions and orbital paths
- Runs in a web browser without requiring a desktop installation
- Better suited to exploratory browsing than text-heavy tracking services
Cons
- Offers less detailed pass prediction than dedicated tracking services such as N2YO
- May provide fewer observation-planning tools than Heavens-Above
- 3D visualization can be less practical than a focused list for identifying visible satellites
5
Spot the Station
NASA
Spot the Station is NASA's official service for finding visible International Space Station passes. It provides location-based sighting opportunities, alerts, and information...
Pros
- Official NASA source for International Space Station sightings
- Offers email and mobile notifications for upcoming passes
- Simpler for beginners interested specifically in the ISS
Cons
- Tracks the ISS rather than a broad range of satellites
- Provides less detailed sky simulation than See a Satellite Tonight
- Not suitable for comparing Starlink or other spacecraft
6
Find Starlink
James Darpinian
Find Starlink predicts when Starlink satellites may be visible from a chosen location. It is designed for casual observers who want to...
Pros
- More focused on Starlink visibility than See a Satellite Tonight
- Quickly provides location-based viewing times
- Simple interface works well for first-time observers
Cons
- Primarily focused on Starlink rather than all visible satellites
- Provides fewer general astronomy tools than Heavens-Above
- Predictions can become less useful as satellite formations spread out
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