A partial

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

descending 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 Tuesday, November 29, 1955, 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 0.1190. 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 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 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 only about 18.5 hours before

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 November 30, 1955, at 11:25 UTC), the Moon's apparent diameter was larger.

Visibility

The eclipse was completely visible over

eastern Europe Eastern Europe is a subregion of the Europe, European continent. As a largely ambiguous term, it has a wide range of geopolitical, geographical, ethnic, cultural and socio-economic connotations. Its eastern boundary is marked by the Ural Mountain ...

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 ...

, and

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 ...

, seen rising over

Africa Africa is the world's second-largest and second-most populous continent after Asia. At about 30.3 million km2 (11.7 million square miles) including adjacent islands, it covers 20% of Earth's land area and 6% of its total surfac ...

and

western Europe Western Europe is the western region of Europe. The region's extent varies depending on context. The concept of "the West" appeared in Europe in juxtaposition to "the East" and originally applied to the Western half of the ancient Mediterranean ...

and setting over the central

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 ...

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 ...

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 1955

* A penumbral lunar eclipse on January 8. * A penumbral lunar eclipse on June 5. * A total solar eclipse on June 20. * A partial lunar eclipse on November 29. * An annular solar eclipse on December 14.

Metonic

* Preceded by: Lunar eclipse of February 11, 1952 * Followed by: Lunar eclipse of September 17, 1959

Tzolkinex

* Preceded by: Lunar eclipse of October 18, 1948 * Followed by: Lunar eclipse of January 9, 1963

Half-Saros

* Preceded by:

Solar eclipse of November 23, 1946 A partial solar eclipse occurred at the Moon's descending node of orbit on Saturday, November 23, 1946, with a magnitude of 0.7758. A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally or partly obscuring the imag ...

* Followed by:

Solar eclipse of December 4, 1964 A partial solar eclipse occurred at the Moon's Lunar node, descending node of orbit between Thursday, December 3 and Friday, December 4, 1964, with a Magnitude of eclipse, magnitude of 0.7518. A solar eclipse occurs when the Moon passes between Ea ...

Tritos

* Preceded by: Lunar eclipse of December 29, 1944 * Followed by: Lunar eclipse of October 29, 1966

Lunar Saros 115

* Preceded by: Lunar eclipse of November 18, 1937 * Followed by: Lunar eclipse of December 10, 1973

Inex

* Preceded by: Lunar eclipse of December 19, 1926 * Followed by: Lunar eclipse of November 8, 1984

Triad

* Preceded by: Lunar eclipse of January 28, 1869 * Followed by: Lunar eclipse of September 29, 2042

Lunar eclipses of 1955–1958

Saros 115

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 partial solar eclipses of

Solar Saros 122 Saros cycle series 122 for solar eclipses occurs at the Moon's descending lunar node, node, repeating every 18 years, 11 days, containing 70 eclipses, 42 of which are umbral (3 total, 2 hybrid, and 37 annular). The first eclipse was on 17 Apri ...

Notes

External links

* {{DEFAULTSORT:Lunar eclipse 1955-11 1955-11 1955 in science November 1955