A penumbral eclipse of the Moon occurs on Friday 21 October, 2450 UT, with maximum eclipse at 10:51 UT. In this extremely marginal eclipse, the Moon barely clips the edge of the Earth's penumbral shadow. This will cause a microscopic darkening of just 4% of the Moon's disc for 53 minutes and 30 seconds, which will be essentially impossible to see.

The penumbral eclipse lasts for 53 minutes and 30 seconds. Maximum eclipse is at 10:51:28 UT.

During this eclipse the Moon will be just a day before perigee, making it very large. At maximum eclipse it will be 0.560° in apparent diameter, which is 5.5% larger 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 73rd and last eclipse in lunar Saros series 124.The surrounding eclipses in this Saros series are:

Eclipse Parameters

UT Date/time (max) 10:51:28 on 21 Oct UT TDT Date/time (max) 11:12:18 on 21 Oct TDT
Saros Series 124 Number in Series 72
Penumbral Magnitiude 0.0391 Central Magnitiude -0.9312
Gamma -1.528 Path Width (km)
Delta T 20m50s Error ± 16m54s (95%)
Penumbral Duration 53m30s Partial Duration
Total Duration
Partial Rating Total Rating
Sun Distance 149222746 km (44.0%) Moon Distance 361553 km (10.2%)
Sun Diameter 0.534° Moon Diameter 0.551° - 0.560°
Apogee 17:28 on 10 Oct UT Perigee 20:03 on 22 Oct 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 22:11:47 UTC.