A penumbral eclipse of the Moon occurred on 11 October, 1866 BC UT Old Style, with maximum eclipse at 16:54 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 12% of the Moon's disc for 1 hour and 48 minutes, which was essentially impossible to see.

The penumbral eclipse lasted for 1 hour and 48 minutes. Maximum eclipse was at 16:54:43 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 4th eclipse in lunar Saros series 26.The surrounding eclipses in this Saros series are:

This Saros series, lunar Saros series 26, is linked to solar Saros series 33. The nearest partner eclipses in that series are:

Eclipse Parameters

UT Date/time (max) 16:54:43 on 11 Oct UT TDT Date/time (max) 04:55:09 on 12 Oct TDT
Saros Series 26 Number in Series 4
Penumbral Magnitiude 0.1237 Central Magnitiude -0.9721
Gamma 1.5164 Path Width (km)
Delta T 12h00m Error ± 1h44m (95%)
Penumbral Duration 1h48m 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 22:11:38 UTC.