A partial eclipse of the Moon occurred on 4 August, 1621 BC UT Old Style, with maximum eclipse at 11:47 UT. The Moon was strikingly shadowed in this deep partial eclipse which lasted 3 hours and 12 minutes, with 87% of the Moon in darkness at maximum.
The penumbral eclipse lasted for 5 hours and 30 minutes.
The partial eclipse lasted for 3 hours and 12 minutes.
Maximum eclipse was at 11:47:59 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 2 eclipses:
This was the 18th eclipse in lunar Saros series 22.The surrounding eclipses in this Saros series are:
This Saros series, lunar Saros series 22,
is linked to solar Saros series 29. The
nearest partner eclipses in that series are:
Eclipse Parameters
| UT Date/time (max) | 11:47:59 on 4 Aug UT |
TDT Date/time (max) | 22:15:48 on 4 Aug TDT |
| Saros Series | 22 |
Number in Series | 18 |
| Penumbral Magnitiude | 1.9016 |
Central Magnitiude | 0.8747 |
| Gamma | 0.5286 |
Path Width (km) | |
| Delta T | 10h28m |
Error | ± 1h15m (95%) |
| Penumbral Duration | 5h30m |
Partial Duration | 3h12m |
| 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.
Data last updated: 2015-06-21 22:11:39 UTC.
