Home   Sun & Moon   Eclipses   December 17–18, 1918 Penumbral Lunar Eclipse

December 17–18, 1918 Penumbral Lunar Eclipse

Was this Penumbral Lunar Eclipse visible in Washington DC?

What This Lunar Eclipse Looked Like

The curvature of the shadow's path and the apparent rotation of the Moon's disk is due to the Earth's rotation.

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Where the Eclipse Was Seen

Try our new interactive eclipse maps. Zoom in and search for accurate eclipse times and visualizations for any location.

Regions seeing, at least, some parts of the eclipse: Europe, Asia, Australia, Africa, Much of North America, East in South America, Pacific, Atlantic, Indian Ocean, Arctic.

Expand for some cities where penumbral eclipse was visible

Was this eclipse visible in Washington DC?

Eclipse Map and Animation

The animation shows where this penumbral lunar eclipse is visible during the night (dark “wave” slowly moving across the Earth's surface).

Shades of darkness

Night, moon high up in sky.

Moon between 12 and 18 degrees above horizon.

Moon between 6 and 12 degrees above horizon. Make sure you have free line of sight.

Moon between 0 and 6 degrees above horizon. May be hard to see due to brightness and line of sight.

Day, moon and eclipse both not visible.

Note: Twilight will affect the visibility of the eclipse, as well as weather.

Note that since it is a penumbral eclipse, it can be hard to see, as the Moon will only be a bit fainter.

Eclipse was visible.

Eclipse was not visible at all.

Note: Areas with lighter shadings left (West) of the center will experience the eclipse after moonrise/sunset. Areas with lighter shadings right (East) of the center will experience the eclipse until moonset/sunrise. Actual eclipse visibility depends on weather conditions and line of sight to the Moon.

When the Eclipse Happened Worldwide — Timeline

Lunar eclipses can be visible from everywhere on the night side of the Earth, if the sky is clear. From some places the entire eclipse will be visible, while in other areas the Moon will rise or set during the eclipse.

EventUTC TimeTime in Washington DC*Visible in Washington DC
Penumbral Eclipse beganDec 17 at 17:08:07Dec 17 at 12:08:07 pmNo, below the horizon
Maximum EclipseDec 17 at 19:05:36Dec 17 at 2:05:36 pmNo, below the horizon
Penumbral Eclipse endedDec 17 at 21:03:05Dec 17 at 4:03:05 pmNo, below the horizon

* The Moon was below the horizon during this eclipse, so it was not possible to view it in Washington DC.

Eclipse calculations usually accurate to a few seconds.

Quick Facts About This Eclipse

DataValueComments
Magnitude-0.168Fraction of the Moon’s diameter covered by Earth’s umbra
Obscuration0.0%Percentage of the Moon's area covered by Earth's umbra
Penumbral magnitude0.834Fraction of the Moon's diameter covered by Earth's penumbra
Overall duration3 hours, 55 minutesPeriod between the beginning and end of all eclipse phases

How Many People Can See This Eclipse?

Number of People Seeing...Number of People*Fraction of World Population
At least some of the penumbral phase5,320,000,00067.41%
The entire eclipse from beginning to end5,030,000,00063.71%

* The number of people refers to the resident population (as a round number) in areas where the eclipse is visible. timeanddate has calculated these numbers using raw population data provided by the Center for International Earth Science Information Network (CIESIN) at Columbia University. The raw data is based on population estimates from the year 2000 to 2020.

An Eclipse Never Comes Alone!

A solar eclipse always occurs about two weeks before or after a lunar eclipse.

Usually, there are two eclipses in a row, but other times, there are three during the same eclipse season.

All eclipses 1900 — 2199

This is the third eclipse this season.

First eclipse this season: November 18, 1918 — Almost Lunar Eclipse

Second eclipse this season: December 3, 1918 — Annular Solar Eclipse