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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 Thursday, November 18, 1937, 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 0.1443. 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, 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 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 19, 1937, at 0:30 UTC), the Moon's apparent diameter was larger.


Visibility

The eclipse was completely visible over much of
northeast Asia Northeast Asia or Northeastern Asia is a geographical Subregion#Asia, subregion of Asia. Its northeastern landmass and islands are bounded by the Pacific Ocean, North Pacific Ocean. The term Northeast Asia was popularized during the 1930s by Ame ...
,
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 ...
, and northwestern
South America South America is a continent entirely in the Western Hemisphere and mostly in the Southern Hemisphere, with a considerably smaller portion in the Northern Hemisphere. It can also be described as the southern Subregion#Americas, subregion o ...
, seen rising over
east Asia East Asia is a geocultural region of Asia. It includes China, Japan, Mongolia, North Korea, South Korea, and Taiwan, plus two special administrative regions of China, Hong Kong and Macau. The economies of Economy of China, China, Economy of Ja ...
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 ...
and setting over much of
South America South America is a continent entirely in the Western Hemisphere and mostly in the Southern Hemisphere, with a considerably smaller portion in the Northern Hemisphere. It can also be described as the southern Subregion#Americas, subregion o ...
,
west Africa West Africa, also known as Western Africa, is the westernmost region of Africa. The United Nations geoscheme for Africa#Western Africa, United Nations defines Western Africa as the 16 countries of Benin, Burkina Faso, Cape Verde, The Gambia, Gha ...
, 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 ...
.


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 1937

* A penumbral lunar eclipse on May 25. * A total solar eclipse on June 8. * A partial lunar eclipse on November 18. * An annular solar eclipse on December 2.


Metonic

* Preceded by: Lunar eclipse of January 30, 1934 * Followed by: Lunar eclipse of September 5, 1941


Tzolkinex

* Preceded by: Lunar eclipse of October 7, 1930 * Followed by: Lunar eclipse of December 29, 1944


Half-Saros

* Preceded by:
Solar eclipse of November 12, 1928 A partial solar eclipse occurred at the Moon's descending node of orbit on Monday, November 12, 1928, with a magnitude of 0.8078. A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally or partly obscuring the image ...
* Followed by: Solar eclipse of November 23, 1946


Tritos

* Preceded by: Lunar eclipse of December 19, 1926 * Followed by: Lunar eclipse of October 18, 1948


Lunar Saros 115

* Preceded by: Lunar eclipse of November 7, 1919 * Followed by: Lunar eclipse of November 29, 1955


Inex

* Preceded by: Lunar eclipse of December 7, 1908 * Followed by: Lunar eclipse of October 29, 1966


Triad

* Preceded by: Lunar eclipse of January 17, 1851 * Followed by: Lunar eclipse of September 18, 2024


Lunar eclipses of 1937–1940


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 ...
.


See also

*
List of lunar eclipses __NOTOC__ A lunar eclipse occurs when the Moon moves into the Earth's shadow, causing the Moon to be darkened. By type * List of central lunar eclipses * Total penumbral lunar eclipse By classification * List of saros series for lunar eclipse ...
* List of 20th-century lunar eclipses


Notes


External links

* {{DEFAULTSORT:Lunar eclipse 1937-11 1937-11 1937 in science