A partial

lunar eclipse A lunar eclipse occurs when the Moon moves into the Earth's shadow. Such alignment occurs during an eclipse season, approximately every six months, during the full moon phase, when the Moon's orbital plane is closest to the plane of the Earth ...

took place on Saturday, June 25, 1983, the first of two lunar eclipses in 1983 with an umbral eclipse magnitude of 0.33479. A partial lunar eclipse happens when the Earth moves between the Sun and the Full Moon, but they are not precisely aligned. Only part of the Moon's visible surface moves into the dark part of the Earth's shadow. A partial lunar eclipse occurs when the Earth moves between the Sun and Moon but the three celestial bodies do not form a straight line in space. When that happens, a small part of the Moon's surface is covered by the darkest, central part of the Earth's shadow, called the umbra. The rest of the Moon is covered by the outer part of the Earth's shadow called the penumbra. The Earth's shadow on the moon was clearly visible in this eclipse, with 33% of the Moon in shadow; the partial eclipse lasted for 2 hours and 15 minutes.

Visibility

It was completely visible over Australia, Pacific and the Americas. Lunar eclipse from moon-1983Jun25

Related lunar eclipses

Eclipses in 1983

* A total solar eclipse at the Moon's ascending node of the orbit on Saturday, June 11th, 1983. * A partial lunar eclipse at the Moon's descending node of the orbit on Saturday, June 25th, 1983. * An annular solar eclipse at the Moon's descending node of the orbit on Sunday, December 04th, 1983. * A penumbral lunar eclipse at the Moon's ascending node of the orbit on Tuesday, December 20th, 1983.

Lunar year series

Half-Saros cycle

A lunar eclipse will be preceded and followed by solar eclipses by 9 years and 5.5 days (a half saros).Mathematical Astronomy Morsels, Jean Meeus, p.110, Chapter 18, ''The half-saros'' This lunar eclipse is related to two total solar eclipses of

Solar Saros 146 Saros cycle series 146 for solar eclipses occurs at the Moon's descending node, repeating every 18 years, 11 days, containing 76 events. All eclipses in this series occurs at the Moon's descending node. This solar saros is linked to Lunar Saros ...

Saros cycle

Notes

External links

* 1983-06 1983 in science June 1983 events {{lunar-eclipse-stub