A total eclipse of the Moon occurred on Wednesday 23 July, 1823 UT (11 Jul, 1823 Old Style), with maximum eclipse at 03:32 UT. The Moon was plunged into darkness for 1 hour and 39 minutes, in a deep total eclipse which saw the Moon 51% of its diameter inside the Earth's umbral shadow. The visual effect of this depends on the state of the Earth's atmosphere, but the Moon may have been stained a deep red colour. The partial eclipse lasted for 3 hours and 52 minutes in total.

The penumbral eclipse lasted for 6 hours and 12 minutes. The partial eclipse lasted for 3 hours and 52 minutes. The total eclipse lasted for 1 hour and 39 minutes. Maximum eclipse was at 03:32:13 UT.

During this eclipse the Moon was just a day past apogee, making it very small. At maximum eclipse it was 0.499° in apparent diameter, which is 6.0% smaller than average. The statistics page has information on the ranges of the sizes of the Sun and Moon, and the Moon data page displays detailed information on the Moon's key dates.

Interactive Map

This map shows the visibility of the eclipse at maximum eclipse, when it was visible within the bright area on the map. Note that the map is approximate, and if you were near the edge of the area of visibility, the moon was very close to the horizon and may not have been practically visible.

You can use the zoom controls to zoom in and out, and pan to see areas of interest. The green marker in the centre shows where the Moon will be directly overhead at maximum eclipse.

The interactive map is currently not available.

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 34th eclipse in lunar Saros series 126.The surrounding eclipses in this Saros series are:

This Saros series, lunar Saros series 126, is linked to solar Saros series 133. The nearest partner eclipses in that series are:

Eclipse Parameters

UT Date/time (max) 03:32:13 on 23 Jul UT TDT Date/time (max) 03:32:23 on 23 Jul TDT
Saros Series 126 Number in Series 34
Penumbral Magnitiude 2.5805 Central Magnitiude 1.5124
Gamma 0.1699 Path Width (km)
Delta T 0m10s Error ± 0m01s (95%)
Penumbral Duration 6h12m Partial Duration 3h52m
Total Duration 1h39m
Partial Rating Total Rating
Sun Distance 151949985 km (100.4%) Moon Distance 405254 km (97.1%)
Sun Diameter 0.525° Moon Diameter 0.491° - 0.499°
Apogee 13:31 on 21 Jul UT Perigee 13:07 on 5 Aug UT

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.

The Sun and Moon distances are shown in km, and as a percentage of their minimum - maximum distances; hence 0% is the closest possible (Earth's perihelion, or the Moon's closest possible perigee) and 100% is the farthest (aphelion, the farthest apogee). The statistics page has information on the ranges of sizes of the Sun and Moon, and the Moon data page displays detailed information on the Moon's key dates.

Data last updated: 2015-06-21 22:11:46 UTC.