A total eclipse of the Moon occurs on Sunday 20 December, 2792 UT, with maximum eclipse at 11:21 UT. A dramatic total eclipse lasting 1 hour and 44 minutes will plunge the full Moon into deep darkness, as it passes right through the centre of the Earth's umbral shadow. While the visual effect of a total eclipse is variable, the Moon may be stained a deep orange or red colour at maximum eclipse. This will be a great spectacle for everyone who sees it. The partial eclipse will last for 3 hours and 52 minutes in total.

The penumbral eclipse lasts for 6 hours and 12 minutes. The partial eclipse lasts for 3 hours and 52 minutes. The total eclipse lasts for 1 hour and 44 minutes. Maximum eclipse is at 11:21:32 UT.

During this eclipse the Moon will be just 4 days before apogee, making it fairly small. At maximum eclipse it will be 0.505° in apparent diameter, which is 4.9% 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 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 3 eclipses:

This is the 28th eclipse in lunar Saros series 157.The surrounding eclipses in this Saros series are:

Eclipse Parameters

UT Date/time (max) 11:21:32 on 20 Dec UT TDT Date/time (max) 12:11:32 on 20 Dec TDT
Saros Series 157 Number in Series 27
Penumbral Magnitiude 2.8682 Central Magnitiude 1.7803
Gamma -0.0186 Path Width (km)
Delta T 50m00s Error ± 41m59s (95%)
Penumbral Duration 6h12m Partial Duration 3h52m
Total Duration 1h44m
Partial Rating Total Rating
Sun Distance 147419142 km (6.7%) Moon Distance 400467 km (87.6%)
Sun Diameter 0.541° Moon Diameter 0.497° - 0.505°
Perigee 08:03 on 8 Dec UT Apogee 06:47 on 24 Dec 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.

Data last updated: 2015-06-21 22:11:48 UTC.