A penumbral eclipse of the Moon occurred on 31 August, 0766 BC UT Old Style, with maximum eclipse at 09:00 UT. In this extremely marginal eclipse, the Moon barely clipped the edge of the Earth's penumbral shadow. This caused a microscopic darkening of just 14% of the Moon's disc for 1 hour and 44 minutes, which was essentially impossible to see.

The penumbral eclipse lasted for 1 hour and 44 minutes. Maximum eclipse was at 09:00:25 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 2nd eclipse in lunar Saros series 64.The surrounding eclipses in this Saros series are:

Eclipse Parameters

UT Date/time (max) 09:00:25 on 31 Aug UT TDT Date/time (max) 14:54:41 on 31 Aug TDT
Saros Series 64 Number in Series 2
Penumbral Magnitiude 0.1445 Central Magnitiude -0.8377
Gamma 1.4739 Path Width (km)
Delta T 5h54m Error ± 17m27s (95%)
Penumbral Duration 1h44m 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 22:11:41 UTC.