Eclipse: Solar & Lunar Sky

See the sky's greatest events — every solar and lunar eclipse, 5,000 years in either direction — and plan exactly where to watch the next one.

Eclipse puts the cosmos in your hand. Spin a photographic globe made from NASA's own pictures, watch the Moon's shadow race across Earth, and find out what the next eclipse will look like from your own backyard — or where to go to stand in totality.

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

🌍 Watch it happen
- Spin a photographic globe, with city lights on the night side and the Moon's shadow passing over (Android 13 and newer)
- Scrub through time and watch the shadow sweep across the world
- Pinch to zoom from space down to satellite maps with roads and towns

📍 Plan from your spot
- Tap anywhere — or use your GPS — to set your place
- Every eclipse in the list tells you what you'll see from there: total and for how long, how much of the Sun is covered, or not seen at all
- Precise local times for when it begins, peaks and ends, and how high the Sun stands
- Outside the path? See how far totality is, which way, and a town inside it you can switch to with one tap
- A heads-up when you're close to the edge of the path, or when the Sun is low and you'll need a clear horizon
- Add the eclipse to your calendar, with every contact time

🌑 Solar and lunar, side by side
Pick any eclipse from one chooser, solar or lunar:
- Solar: the sky darkening as the Sun is covered, the corona at totality, and the "ring of fire" of an annular eclipse
- Lunar: the real Moon turning deep copper in Earth's shadow — the "blood moon" — on a 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
- Search for a year or a Saros series, filter by type or period, or show only the ones visible from where you are
- 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

Free, with no ads and no accounts.

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