A penumbral eclipse of the Moon occurred on Tuesday 15 May, 1984 UT, with maximum eclipse at 04:40 UT. This subtle penumbral eclipse eclipse may have been visible to a skilled observer at maximum eclipse. 81% of the Moon's disc was partially shaded by the Earth (none of it was in total shadow), which caused a gentle shadow gradient across its disc at maximum; the eclipse as a whole lasted 3 hours and 53 minutes.

The penumbral eclipse lasted for 3 hours and 53 minutes. Maximum eclipse was at 04:40:09 UT.

During this eclipse the Moon was just 3 days past perigee, making it relatively large. At maximum eclipse it was 0.545° in apparent diameter, which is 2.7% larger than average. The statistics page has information on the ranges of the sizes of the Sun and Moon.

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.

Overview Map

This map sourced from NASA's Eclipse Web Site 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 65th eclipse in lunar Saros series 111.The surrounding eclipses in this Saros series are:

Eclipse Parameters

UT Date/time (max) 04:40:09 on 15 May UT TDT Date/time (max) 04:41:03 on 15 May TDT
Saros Series 111 Number in Series 64
Penumbral Magnitiude 0.8071 Central Magnitiude -0.176
Gamma 1.113 Path Width (km)
Delta T 0m54s Error ± 0m00s (95%)
Penumbral Duration 3h53m Partial Duration
Total Duration
Partial Rating Total Rating
Sun Distance 151244112 km (85.8%) Moon Distance 371262 km (29.5%)
Sun Diameter 0.527° Moon Diameter 0.536° - 0.545°
Perigee 03:08 on 12 May UT Apogee 00:59 on 24 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 listings 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.

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