A penumbral eclipse of the Moon occurred on 31 May, 0166 BC UT Old Style, with maximum eclipse at 13:49 UT. This subtle penumbral eclipse may have been visible to a skilled observer at maximum eclipse. 66% of the Moon's disc was partially shaded by the Earth (none of it was in total shadow), which caused a gentle shadow gradient across its disc at maximum; the eclipse as a whole lasted 3 hours and 27 minutes.

The penumbral eclipse lasted for 3 hours and 27 minutes. Maximum eclipse was at 13:49:50 UT.

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 was the 6th eclipse in lunar Saros series 76.The surrounding eclipses in this Saros series are:

This Saros series, lunar Saros series 76, is linked to solar Saros series 83. The nearest partner eclipses in that series are:

Eclipse Parameters

UT Date/time (max) 13:49:50 on 31 May UT TDT Date/time (max) 17:15:02 on 31 May TDT
Saros Series 76 Number in Series 6
Penumbral Magnitiude 0.6557 Central Magnitiude -0.2998
Gamma 1.188 Path Width (km)
Delta T 3h25m Error ± 10m17s (95%)
Penumbral Duration 3h27m 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.

Data last updated: 2015-06-21 22:11:42 UTC.