A penumbral eclipse of the Moon occurred on 20 January, 1584 BC UT Old Style, with maximum eclipse at 13:49 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 10% of the Moon's disc for 1 hour and 23 minutes, which was essentially impossible to see.
The penumbral eclipse lasted for 1 hour and 23 minutes.
Maximum eclipse was at 13:49:15 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)
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 eclipse belongs to lunar Saros series -11.The surrounding eclipses in this Saros series are:
Eclipse Parameters
| UT Date/time (max) | 13:49:15 on 20 Jan UT |
TDT Date/time (max) | 00:03:49 on 21 Jan TDT |
| Saros Series | -11 |
Number in Series | |
| Penumbral Magnitiude | 0.0973 |
Central Magnitiude | -0.871 |
| Gamma | 1.4958 |
Path Width (km) | |
| Delta T | 10h15m |
Error | ± 1h11m (95%) |
| Penumbral Duration | 1h23m |
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)
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 22:11:39 UTC.
