Almanac · Eclipses

Partial lunar eclipse, 28 Aug 2026

Part of the Moon passes into the Earth’s full shadow, seen from everywhere it is up. Greatest eclipse was on Fri 28 Aug 2026 at 04:12 UTC. The next eclipse of the Moon is the penumbral lunar eclipse of 20 Feb 2027.

• Greatest eclipse Fri 28 Aug 2026, 04:12 UTC The Moon overhead at 9.3°S 63.1°W
• Magnitude 0.930 Umbral; penumbral 1.965
• Longest Partial 3h18m The same from everywhere the Moon is up

City by city

An eclipse of the Moon is the same sight from everywhere the Moon is up. The biggest cities on our list that see all of it, spread round that side of the world, the Moon highest first, then some that see part. Every time is the city’s own clock.

• Porto Velho, Brazil All of it, the Moon 89° up at greatest eclipse Begins 22:33 · Deepest 00:12 · Ends 01:52 GMT-4 Watch from here
• Lima, Peru All of it, the Moon 76° up at greatest eclipse Begins 21:33 · Deepest 23:12 · Ends 00:52 GMT-5 Watch from here
• Bogotá, Colombia All of it, the Moon 72° up at greatest eclipse Begins 21:33 · Deepest 23:12 · Ends 00:52 GMT-5 Watch from here
• São Paulo, Brazil All of it, the Moon 68° up at greatest eclipse Begins 23:33 · Deepest 01:12 · Ends 02:52 GMT-3 Watch from here
• Buenos Aires, Argentina All of it, the Moon 64° up at greatest eclipse Begins 23:33 · Deepest 01:12 · Ends 02:52 GMT-3 Watch from here
• Mexico City, Mexico All of it, the Moon 44° up at greatest eclipse Begins 20:33 · Deepest 22:12 · Ends 23:52 CST Watch from here
• New York, USA All of it, the Moon 38° up at greatest eclipse Begins 22:33 · Deepest 00:12 · Ends 01:52 EDT Watch from here
• Abidjan, Côte d'Ivoire All of it, the Moon 28° up at greatest eclipse Begins 02:33 · Deepest 04:12 · Ends 05:52 GMT Watch from here
• Los Angeles, USA All of it, the Moon 21° up at greatest eclipse Begins 19:33 · Deepest 21:12 · Ends 22:52 PDT Watch from here
• Istanbul, Turkey Part of it: the Moon sets during it Begins 05:33 · Deepest 07:12 · Ends after moonset GMT+3 Watch from here
• Kinshasa, DR Congo Part of it: the Moon sets during it Begins 03:33 · Deepest 05:12 · Ends after moonset GMT+1 Watch from here
• London, UK Part of it: the Moon sets during it Begins 03:33 · Deepest 05:12 · Ends after moonset GMT+1 Watch from here
• Saint Petersburg, Russia Part of it: the Moon sets during it Begins 05:33 · Deepest 07:12 · Ends after moonset GMT+3 Watch from here

The eclipse, contact by contact

In the outer shadow for 5h38m, in the full shadow for 3h18m.

Latitude by latitude

Along each latitude, the longitudes with the Moon above the horizon for the whole time it is in the full shadow, and those with it up at the greatest moment. An eclipse of the Moon looks the same from everywhere it is up.

How we worked it out: the Moon’s and the Sun’s places are Meeus’s solar and lunar theories, the ones the map draws. The Earth’s shadow is sized by Danjon’s rule, as NASA’s catalogue has it, and each contact is the instant the Moon’s edge crosses the shadow’s, found to the second. Each latitude is walked 1° of longitude at a time, the Moon’s altitude asked every 15 minutes. The tests hold these to NASA’s Five Millennium Canon of eclipses: instants within a few minutes, magnitudes within a few thousandths, the phases within two minutes.

• F. Espenak and J. Meeus, NASA Five Millennium Canon of Solar and Lunar Eclipses, which the tests hold these to
• J. Meeus, Astronomical Algorithms, ch. 25 (the Sun) and ch. 47 (the Moon), as the map draws them
• Danjon’s rule for the Earth’s shadow, as NASA’s lunar eclipse catalogue applies it (NASA/TP-2009-214172, §1.3)

All eclipses · 14 Mar 2025 · 7 Sep 2025 · 3 Mar 2026 · 20 Feb 2027 · 18 Jul 2027 · 17 Aug 2027 · How eclipses work · Tonight · JSON