A penumbral eclipse of the Moon occurred on Monday 22 April, 1940 UT, with maximum eclipse at 04:26 UT. At maximum eclipse, 87% of the Moon's disc was partially shaded by the Earth, which caused a slight shadow gradient across its disc; this subtle effect may have been visible to careful observers. No part of the Moon was in complete shadow. The eclipse lasted 3 hours and 53 minutes overall.

The penumbral eclipse lasted for 3 hours and 53 minutes. Maximum eclipse was at 04:26:00 UT.

During this eclipse the Moon was just a day past perigee, making it very large. At maximum eclipse it was 0.560° in apparent diameter, which is 5.5% larger 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 20th eclipse in lunar Saros series 140.The surrounding eclipses in this Saros series are:

This Saros series, lunar Saros series 140, is linked to solar Saros series 147. The nearest partner eclipses in that series are:

Eclipse Parameters

UT Date/time (max) 04:26:00 on 22 Apr UT TDT Date/time (max) 04:26:25 on 22 Apr TDT
Saros Series 140 Number in Series 20
Penumbral Magnitiude 0.8683 Central Magnitiude -0.0945
Gamma 1.0741 Path Width (km)
Delta T 0m25s Error ± 0m00s (95%)
Penumbral Duration 3h53m Partial Duration
Total Duration
Partial Rating Total Rating
Sun Distance 150407025 km (68.5%) Moon Distance 361621 km (10.4%)
Sun Diameter 0.530° Moon Diameter 0.550° - 0.560°
Perigee 19:21 on 20 Apr UT Apogee 22:42 on 2 May 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.