A penumbral eclipse of the Moon occurs on Tuesday 31 May, 2664 UT, with maximum eclipse at 23:48 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 3% of the Moon's disc for 51 minutes and 30 seconds, which will be essentially impossible to see.

The penumbral eclipse lasts for 51 minutes and 30 seconds. Maximum eclipse is at 23:48:28 UT.

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 3 eclipses:

This is the 1st eclipse in lunar Saros series 170.The surrounding eclipses in this Saros series are:

This Saros series, lunar Saros series 170, is linked to solar Saros series 177. The nearest partner eclipses in that series are:

Eclipse Parameters

UT Date/time (max) 23:48:28 on 31 May UT TDT Date/time (max) 00:26:03 on 1 Jun TDT
Saros Series 170 Number in Series 1
Penumbral Magnitiude 0.0287 Central Magnitiude -1.0247
Gamma 1.5565 Path Width (km)
Delta T 37m35s Error ± 31m32s (95%)
Penumbral Duration 51m30s Partial Duration
Total Duration
Partial Rating Total Rating

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. For this eclipse, this makes the date shown on this site different to NASA's date.

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