December 1973 lunar eclipse
Partial lunar eclipse December 10, 1973
A partial lunar eclipse occurred at the Moon’s descending node of orbit on Monday, December 10, 1973, with an umbral magnitude of 0.1007. A lunar eclipse occurs when the Moon moves into the Earth's shadow, causing the Moon to be darkened. A partial lunar eclipse occurs when one part of the Moon is in the Earth's umbra, while the other part is in the Earth's penumbra. Unlike a solar eclipse, which can only be viewed from a relatively small area of the world, a lunar eclipse may be viewed from anywhere on the night side of Earth. Occurring only about 21 hours before perigee (on December 10, 1973, at 22:20 UTC), the Moon's apparent diameter was larger.
This eclipse was the last of four lunar eclipses in 1973, with the others occurring on January 18 (penumbral), June 15 (penumbral), and July 15 (penumbral).
Visibility
The eclipse was completely visible over much of North and South America, Africa, Europe, and west and north Asia, seen rising over western North America and the eastern Pacific Ocean and setting over southeast Africa and much of Asia.
Eclipse details
Shown below is a table displaying details about this particular lunar eclipse. It describes various parameters pertaining to this eclipse.
Eclipse season
This eclipse is part of an eclipse season, a period, roughly every six months, when eclipses occur.
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