A total eclipse of the Moon occurs on Wednesday 20 August, 2138 UT, with maximum eclipse at 15:33 UT. The Moon will be plunged into darkness for 1 hour and 14 minutes, in a deep total eclipse which will see the Moon 30% of its diameter inside the Earth's umbral shadow. The visual effect of this depends on the state of the Earth's atmosphere, but the Moon may be stained a deep red colour. The partial eclipse will last for 3 hours and 21 minutes in total.

The penumbral eclipse lasts for 5 hours and 10 minutes. The partial eclipse lasts for 3 hours and 21 minutes. The total eclipse lasts for 1 hour and 14 minutes. Maximum eclipse is at 15:33:48 UT.

During this eclipse the Moon will be at perigee, making it extremely large. At maximum eclipse it will be 0.567° in apparent diameter, which is 6.9% larger than average. The statistics page has information on the ranges of the sizes of the Sun and Moon, and the Moon data page displays detailed information on the Moon's key dates.

Interactive Map

This map shows the visibility of the eclipse at maximum eclipse, when it will be visible within the bright area on the map. Note that the map is approximate, and if you are near the edge of the area of visibility, the moon will be very close to the horizon and may not be practically visible.

You can use the zoom controls to zoom in and out, and pan to see areas of interest. The green marker in the centre shows where the Moon will be directly overhead at maximum eclipse.

The interactive map is currently not available.

Overview Map

This map sourced from NASA Goddard Space flight Center: GSFC Eclipse Web SiteGSFC Eclipse Web Site
The primary source of all the information on eclipses presented here at Hermit Eclipse. (NASA Goddard Space flight Center)
https://eclipse.gsfc.nasa.gov/eclipse.html
shows the visibility of the eclipse. (Click on it for the full-sized version.)

Eclipse Season and Saros Series

This eclipse season contains 2 eclipses:

This is the 31st eclipse in lunar Saros series 140.The surrounding eclipses in this Saros series are:

This Saros series, lunar Saros series 140, is linked to solar Saros series 147. The nearest partner eclipses in that series are:

Eclipse Parameters

UT Date/time (max) 15:33:48 on 20 Aug UT TDT Date/time (max) 15:38:46 on 20 Aug TDT
Saros Series 140 Number in Series 31
Penumbral Magnitiude 2.2421 Central Magnitiude 1.2977
Gamma 0.3204 Path Width (km)
Delta T 4m58s Error ± 2m36s (95%)
Penumbral Duration 5h10m Partial Duration 3h21m
Total Duration 1h14m
Partial Rating Total Rating
Sun Distance 151420987 km (89.5%) Moon Distance 357077 km (1.3%)
Sun Diameter 0.527° Moon Diameter 0.557° - 0.567°
Perigee 12:45 on 20 Aug UT Apogee 21:50 on 2 Sep UT

Note that while all dates and times on this site (except where noted) are in UT, which is within a second of civil time, the dates and times shown in NASA's eclipse listingsGSFC Eclipse Web Site
The primary source of all the information on eclipses presented here at Hermit Eclipse. (NASA Goddard Space flight Center)
https://eclipse.gsfc.nasa.gov/eclipse.html
are in the TDT timescale.

The Sun and Moon distances are shown in km, and as a percentage of their minimum - maximum distances; hence 0% is the closest possible (Earth's perihelion, or the Moon's closest possible perigee) and 100% is the farthest (aphelion, the farthest apogee). The statistics page has information on the ranges of sizes of the Sun and Moon, and the Moon data page displays detailed information on the Moon's key dates.

Data last updated: 2015-06-21 22:11:47 UTC.