A penumbral

lunar eclipse A lunar eclipse is an astronomical event that occurs when the Moon moves into the Earth's shadow, causing the Moon to be darkened. Such an alignment occurs during an eclipse season, approximately every six months, during the full moon phase, ...

occurred at the Moon’s

ascending node An orbital node is either of the two points where an orbit intersects a plane of reference to which it is inclined. A non-inclined orbit, which is contained in the reference plane, has no nodes. Planes of reference Common planes of referenc ...

of orbit on Friday, December 29, 1944, with an umbral

magnitude Magnitude may refer to: Mathematics *Euclidean vector, a quantity defined by both its magnitude and its direction *Magnitude (mathematics), the relative size of an object *Norm (mathematics), a term for the size or length of a vector *Order of ...

of −0.0176. It was a relatively rare

total penumbral lunar eclipse A total penumbral lunar eclipse is a lunar eclipse that occurs when the Moon becomes completely immersed in the penumbra, penumbral cone of the Earth without touching the umbra. The path for the Moon to pass within the penumbra and outside the um ...

, with the Moon passing entirely within the penumbral shadow without entering the darker umbral shadow. A lunar eclipse occurs when the

Moon The Moon is Earth's only natural satellite. It Orbit of the Moon, orbits around Earth at Lunar distance, an average distance of (; about 30 times Earth diameter, Earth's diameter). The Moon rotation, rotates, with a rotation period (lunar ...

moves into the

Earth's shadow Earth's shadow (or Earth shadow) is the shadow that Earth itself casts through its atmosphere and into outer space, toward the antisolar point. During the twilight period (both early dusk and late dawn), the shadow's visible fringe – someti ...

, causing the Moon to be darkened. A penumbral lunar eclipse occurs when part or all of the Moon's near side passes into the Earth's penumbra. Unlike a

solar eclipse A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby obscuring the view of the Sun from a small part of Earth, totally or partially. Such an alignment occurs approximately every six months, during the eclipse season i ...

, which can only be viewed from a relatively small area of the world, a lunar eclipse may be viewed from anywhere on the

night Night, or nighttime, is the period of darkness when the Sun is below the horizon. Sunlight illuminates one side of the Earth, leaving the other in darkness. The opposite of nighttime is daytime. Earth's rotation causes the appearance of ...

side of Earth. Occurring about 6 days after

perigee An apsis (; ) is the farthest or nearest point in the orbit of a planetary body about its primary body. The line of apsides (also called apse line, or major axis of the orbit) is the line connecting the two extreme values. Apsides perta ...

(on December 23, 1944, at 12:40 UTC), the Moon's apparent diameter was larger. This eclipse was the last of four penumbral lunar eclipses in 1944, with the others occurring on

February 9 Events Pre-1600 * 474 – Zeno (emperor), Zeno is crowned as co-emperor of the Byzantine Empire, Eastern Roman Empire *1003 – Boleslaus III, Duke of Bohemia, Boleslaus III is restored to authority with armed support from Bolesław I ...

July 6 Events Pre-1600 * 371 BC – The Battle of Leuctra shatters Sparta's reputation of military invincibility. * 640 – Battle of Heliopolis: The Muslim Arab army under 'Amr ibn al-'As defeat the Byzantine forces near Heliopolis (Egy ...

, and

August 4 Events Pre-1600 * 598 – Goguryeo–Sui War#Course of the war, Goguryeo-Sui War: In response to a Goguryeo (Korean) incursion into Liaoxi, Emperor Emperor Wen of Sui, Wéndi of Sui dynasty, Sui orders his youngest son, Yang Liang (assiste ...

Saturn Saturn is the sixth planet from the Sun and the second largest in the Solar System, after Jupiter. It is a gas giant, with an average radius of about 9 times that of Earth. It has an eighth the average density of Earth, but is over 95 tim ...

was conjunct with the Moon during this eclipse.

Visibility

The eclipse was completely visible over much of

Asia Asia ( , ) is the largest continent in the world by both land area and population. It covers an area of more than 44 million square kilometres, about 30% of Earth's total land area and 8% of Earth's total surface area. The continent, which ...

Australia Australia, officially the Commonwealth of Australia, is a country comprising mainland Australia, the mainland of the Australia (continent), Australian continent, the island of Tasmania and list of islands of Australia, numerous smaller isl ...

, and northwestern

North America North America is a continent in the Northern Hemisphere, Northern and Western Hemisphere, Western hemispheres. North America is bordered to the north by the Arctic Ocean, to the east by the Atlantic Ocean, to the southeast by South Ameri ...

, seen rising over

Europe Europe is a continent located entirely in the Northern Hemisphere and mostly in the Eastern Hemisphere. It is bordered by the Arctic Ocean to the north, the Atlantic Ocean to the west, the Mediterranean Sea to the south, and Asia to the east ...

east Africa East Africa, also known as Eastern Africa or the East of Africa, is a region at the eastern edge of the Africa, African continent, distinguished by its unique geographical, historical, and cultural landscape. Defined in varying scopes, the regi ...

, and the

Middle East The Middle East (term originally coined in English language) is a geopolitical region encompassing the Arabian Peninsula, the Levant, Turkey, Egypt, Iran, and Iraq. The term came into widespread usage by the United Kingdom and western Eur ...

and setting over much of North America and the eastern

Pacific Ocean The Pacific Ocean is the largest and deepest of Earth's five Borders of the oceans, oceanic divisions. It extends from the Arctic Ocean in the north to the Southern Ocean, or, depending on the definition, to Antarctica in the south, and is ...

Eclipse details

Shown below is a table displaying details about this particular solar eclipse. It describes various parameters pertaining to this eclipse.

Eclipse season

This eclipse is part of an

eclipse season An eclipse season is a period, roughly every six months, when eclipses occur. Eclipse seasons are the result of the axial parallelism of the Orbit of the Moon, Moon's orbital plane (orbital inclination, tilted five degrees to the ecliptic, Earth ...

, a period, roughly every six months, when eclipses occur. Only two (or occasionally three) eclipse seasons occur each year, and each season lasts about 35 days and repeats just short of six months (173 days) later; thus two full eclipse seasons always occur each year. Either two or three eclipses happen each eclipse season. In the sequence below, each eclipse is separated by a

fortnight A fortnight is a unit of time equal to 14 days (two weeks). The word derives from the Old English term , meaning "" (or "fourteen days", since the Anglo-Saxons counted by nights). Astronomy and tides In astronomy, a ''lunar fortnight'' is hal ...

Related eclipses

Eclipses in 1944

* A total solar eclipse on January 25. * A penumbral lunar eclipse on February 9. * A penumbral lunar eclipse on July 6. * An annular solar eclipse on July 20. * A penumbral lunar eclipse on August 4. * A penumbral lunar eclipse on December 29.

Metonic

* Preceded by: Lunar eclipse of March 13, 1941 * Followed by: Lunar eclipse of October 18, 1948

Tzolkinex

* Preceded by: Lunar eclipse of November 18, 1937 * Followed by: Lunar eclipse of February 11, 1952

Half-Saros

* Preceded by: Solar eclipse of December 25, 1935 * Followed by: Solar eclipse of January 5, 1954

Tritos

* Preceded by: Lunar eclipse of January 30, 1934 * Followed by: Lunar eclipse of November 29, 1955

Lunar Saros 114

* Preceded by: Lunar eclipse of December 19, 1926 * Followed by: Lunar eclipse of January 9, 1963

Inex

* Preceded by: Lunar eclipse of January 20, 1916 * Followed by: Lunar eclipse of December 10, 1973

Triad

* Preceded by: Lunar eclipse of February 27, 1858 * Followed by: Lunar eclipse of October 30, 2031

Lunar eclipses of 1944–1947

Saros 114

Tritos series

Inex 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 121 Saros cycle series 121 for solar eclipses occurs at the Moon's ascending lunar node, node, repeating every 18 years, 11 days, containing 71 eclipses. 55 of these are umbral eclipses (42 total, 2 hybrid, and 11 annular). The first eclipse in the s ...

Notes

External links

* 1944-12 1944 in science {{lunar-eclipse-stub