A penumbral eclipse of the Moon occurred on 13 May, 1171 BC UT Old Style, with maximum eclipse at 09:15 UT. At maximum eclipse, 98% of the Moon's disc was partially shaded by the Earth, which caused a slight shadow gradient across its disc; this subtle effect may have been visible to careful observers. No part of the Moon was in complete shadow. The eclipse lasted 4 hours and 31 minutes overall.

The penumbral eclipse lasted for 4 hours and 31 minutes. Maximum eclipse was at 09:15:48 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 2 eclipses:

This eclipse belongs to lunar Saros series 12.The surrounding eclipses in this Saros series are:

This Saros series, lunar Saros series 12, is linked to solar Saros series 19. The nearest partner eclipses in that series are:

Eclipse Parameters

UT Date/time (max) 09:15:48 on 13 May UT TDT Date/time (max) 17:10:03 on 13 May TDT
Saros Series 12 Number in Series
Penumbral Magnitiude 0.9838 Central Magnitiude -0.0526
Gamma -1.0314 Path Width (km)
Delta T 7h54m Error ± 32m23s (95%)
Penumbral Duration 4h31m 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 22:11:40 UTC.