A total eclipse of the Moon occurs on Tuesday 18 August, 2054 UT, with maximum eclipse at 09:24 UT. The Moon will be plunged into darkness for 1 hour and 23 minutes, in a deep total eclipse which will see the Moon 31% 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 47 minutes in total.

The penumbral eclipse lasts for 6 hours and 10 minutes. The partial eclipse lasts for 3 hours and 47 minutes. The total eclipse lasts for 1 hour and 23 minutes. Maximum eclipse is at 09:24:48 UT.

During this eclipse the Moon will be at apogee, making it very small. At maximum eclipse it will be 0.498° in apparent diameter, which is 6.3% smaller than average. The statistics page has information on the ranges of the sizes of the Sun and Moon.

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.

Overview Map

This map sourced from NASA's Eclipse Web Site shows the visibility of the eclipse. (Click on it for the full-sized version.)

Eclipse Season and Saros Series

This eclipse season contains 3 eclipses:

This is the 40th eclipse in lunar Saros series 129.The surrounding eclipses in this Saros series are:

Eclipse Parameters

UT Date/time (max) 09:24:48 on 18 Aug UT TDT Date/time (max) 09:26:30 on 18 Aug TDT
Saros Series 129 Number in Series 39
Penumbral Magnitiude 2.3805 Central Magnitiude 1.3062
Gamma 0.2806 Path Width (km)
Delta T 1m42s Error ± 0m34s (95%)
Penumbral Duration 6h10m Partial Duration 3h47m
Total Duration 1h23m
Partial Rating Total Rating
Sun Distance 151437737 km (89.8%) Moon Distance 406252 km (99.1%)
Sun Diameter 0.527° Moon Diameter 0.490° - 0.498°
Perigee 04:49 on 4 Aug UT Apogee 10:19 on 18 Aug 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 listings 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.

Data last updated: 2015-06-21 22:11:46 UTC.