Stellarium is a free open-source planetarium software that shows a realistic sky in 3D, just like what you see with the naked...
Best NASA Eclipse Alternatives ranked by AI · updated Aug 2026
NASA Eclipse is NASA's online resource for upcoming and past solar and lunar eclipses. It provides event dates, viewing guidance, maps, safety information, and educational material for the public and educators.
Top 6 NASA Eclipse alternatives
SkySafari is a powerful planetarium that fits in your pocket, puts the universe at your fingertips, and is incredibly easy to use!
Eclipse Countdown 2017 was a mobile companion for the August 2017 total solar eclipse, aimed at observers planning where and when to...
Pros
- Provided a focused countdown for the 2017 total solar eclipse
- Included educational guidance from a science museum
- Was more approachable than general-purpose astronomy software
Cons
- Focused exclusively on the 2017 eclipse
- No longer useful for planning current eclipses
- Had fewer simulation features than modern astronomy apps
4
Eclipse Guide
Vito Technology
Eclipse Guide is a mobile app for finding and planning solar and lunar eclipses worldwide. It combines event maps, local visibility details,...
Pros
- Supports future solar and lunar eclipses instead of one historical event
- Offers location-specific contact times and visibility maps
- More focused on eclipse planning than general astronomy apps
Cons
- Some features may require in-app purchases
- Less useful for broad stargazing than Stellarium or SkySafari
- Mobile-focused rather than a full desktop planning tool
Freemium, optional in-app purchases
5
Solar Eclipse Timer
Solar Eclipse Timer
Solar Eclipse Timer is a mobile app that guides observers through the phases of a total or annular solar eclipse. It provides...
Pros
- Provides audible phase-by-phase guidance during an eclipse
- More practical for live totality observation than a simple countdown
- Supports planning for multiple future eclipses
Cons
- Designed primarily for solar eclipse events
- Less suitable for general astronomy education
- Requires accurate location and device setup for best results
Freemium, optional in-app purchases
6
Eclipse Calendar
timeanddate.com AS
Eclipse Calendar is timeanddate.com's web-based eclipse planning tool for solar and lunar events. It shows local visibility, event stages, maps, countdowns, and...
Pros
- Provides precise local timings without installing an app
- Covers eclipses globally with accessible maps and tables
- Combines countdowns with detailed timezone and visibility data
Cons
- Contains more advertising than dedicated astronomy applications
- Less immersive for live observation than specialized mobile tools
- Interface is information-dense for casual users
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