Eclipse - Solar & Lunar

Alok Mandavgane

About this app

See the sky's greatest events — every solar and lunar eclipse, 5,000 years in either direction.

Eclipse turns the machinery of the cosmos into something you can hold in your hand. Spin a globe, watch the Moon's shadow race across Earth, and find out exactly what the next eclipse will look like from your own backyard.

Whether you're a curious first-timer or a lifelong eclipse chaser, Eclipse meets you where you are.

🌍 Watch it happen
- Drag to spin a 3D globe, and pinch to zoom from space right down to street level
- Watch the shadow sweep across the world as you scrub through time
- Or switch to a flat world map with a day/night line showing exactly where the eclipse is visible

📍 See it from your location
- Tap anywhere — or use your GPS — to drop your spot on Earth
- Get precise local times: when the eclipse begins, peaks, and ends
- See how much of the Sun will be covered, how high it sits in your sky, and whether you'll catch totality

🌑 Two eclipses, one app
Flip a single switch between Solar and Lunar:
- Solar: follow the path of totality and the "ring of fire" of an annular eclipse
- Lunar: watch the Moon glide into Earth's shadow and turn deep copper-red — the "blood moon" — on a realistic star chart with named stars and constellations

📚 Learn as you go
- Simple, beautiful guides: what causes eclipses, total vs. partial vs. annular, and the science behind the blood moon
- How to watch safely — certified eclipse glasses, pinhole projection, and the methods that actually work
- The myths and stories cultures have told about eclipses — and what's really going on
- A guided tour walks you through everything on first launch

🔭 Browse a 5,000-year catalog
- Nearly 12,000 solar and 12,000 lunar eclipses, from 2000 BCE to 3000 CE
- Filter by type, by year, or by "visible from where I am"
- Built on NASA / Fred Espenak eclipse predictions — the same data the experts use

🔗 Share any view
Found a spectacular one? Send a link that opens the exact same globe, date, and location on your friend's phone.

Going deeper — for the eclipse-obsessed
Everything above is all most people will ever need. But if you like to look under the hood, it's all here:
- The Saros cycle — play a whole Saros family and watch its eclipses march across the centuries
- The Saros–Inex Panorama — every eclipse in history on one zoomable, colour-coded grid
- The Syzygy Explorer — a lattice of every new and full Moon, where the great orbital rhythms line up before your eyes
- Full technical readouts — Besselian elements, gamma, magnitude, ΔT, path width and sub-solar point; and for lunar eclipses, sidereal positions with Nakshatra & Ayanāṁśa

Available in English, हिन्दी, मराठी, ಕನ್ನಡ, தமிழ், తెలుగు, Kiswahili and አማርኛ.

Made with the Public Outreach & Education Committee of the Astronomical Society of India.

Ratings and reviews

couldn't bother to try it, after trying "eclipse calculator 2" this looks useless to me. but it seems to work fine. gives only data of the last and next eclipses. really terrible UX. edit/reply: put the best adversaries on the description and say what you do different! 😁😘

Nice job! The activities mentioned in the app are good for understanding the concepts.

Nice app, simple to use & navigate - does the job well.

What’s new

Our biggest update yet — Eclipse now covers the Moon too.

🌑 NEW: Lunar eclipses — watch the Moon turn blood-red, with local timings and a real star chart
🔭 Syzygy Explorer — every new & full moon on one lattice, where Saros rhythms emerge
🌍 Faster, richer globe with animated Saros-series playback
📍 One-tap "use my location"
🔗 Share any eclipse as a link
🧭 Guided tour for first-timers
🌐 More languages

Plus a fresh look and countless fixes. Clear skies!