A penumbral eclipse of the Moon occurred on 20 December, 0456 BC UT Old Style, with maximum eclipse at 02:16 UT. This very subtle penumbral eclipse was essentially invisible to the naked eye; though it lasted 3 hours and 30 minutes, just 51% of the Moon's disc was in partial shadow (with no part of it in complete shadow).

The penumbral eclipse lasted for 3 hours and 30 minutes. Maximum eclipse was at 02:16:10 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 was the 13th eclipse in lunar Saros series 66.The surrounding eclipses in this Saros series are:

This Saros series, lunar Saros series 66, is linked to solar Saros series 73. The nearest partner eclipses in that series are:

Eclipse Parameters

UT Date/time (max) 02:16:10 on 20 Dec UT TDT Date/time (max) 06:48:18 on 20 Dec TDT
Saros Series 66 Number in Series 13
Penumbral Magnitiude 0.5075 Central Magnitiude -0.5815
Gamma 1.3054 Path Width (km)
Delta T 4h32m Error ± 13m31s (95%)
Penumbral Duration 3h30m 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.