A total

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 ...

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 Saturday, June 11, 1983, with a

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 1.0524. A

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 ...

passes between

Earth Earth is the third planet from the Sun and the only astronomical object known to Planetary habitability, harbor life. This is enabled by Earth being an ocean world, the only one in the Solar System sustaining liquid surface water. Almost all ...

and the

Sun The Sun is the star at the centre of the Solar System. It is a massive, nearly perfect sphere of hot plasma, heated to incandescence by nuclear fusion reactions in its core, radiating the energy from its surface mainly as visible light a ...

, thereby totally or partly obscuring the image of the Sun for a viewer on Earth. A total solar eclipse occurs when the Moon's

apparent diameter The angular diameter, angular size, apparent diameter, or apparent size is an angular separation (in units of angle) describing how large a sphere or circle appears from a given point of view. In the vision sciences, it is called the '' visual ...

is larger than the Sun's, blocking all direct sunlight, turning day into darkness. Totality occurs in a narrow path across Earth's surface, with the partial solar eclipse visible over a surrounding region thousands of kilometres wide. Occurring about 2.1 days 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 June 13, 1983, at 6:50 UTC), the Moon's apparent diameter was larger. The path of totality went through

Christmas Islands Christmas Island, officially the Territory of Christmas Island, is an Australian external territory in the Indian Ocean comprising the island of the same name. It is about south of Java and Sumatra and about north-west of the closest p ...

Indonesia Indonesia, officially the Republic of Indonesia, is a country in Southeast Asia and Oceania, between the Indian Ocean, Indian and Pacific Ocean, Pacific oceans. Comprising over List of islands of Indonesia, 17,000 islands, including Sumatra, ...

Papua New Guinea Papua New Guinea, officially the Independent State of Papua New Guinea, is an island country in Oceania that comprises the eastern half of the island of New Guinea and offshore islands in Melanesia, a region of the southwestern Pacific Ocean n ...

, and terminated in

Vanuatu Vanuatu ( or ; ), officially the Republic of Vanuatu (; ), is an island country in Melanesia located in the South Pacific Ocean. The archipelago, which is of volcanic origin, is east of northern Australia, northeast of New Caledonia, east o ...

. The maximum eclipse occurred off the Indonesian island of

Madura is an list of islands of Indonesia, Indonesian island off the northeastern coast of Java. The island comprises an area of approximately (administratively including various smaller islands to the east, southeast and north that are administratively ...

. Major Indonesian cities witnessed totality, including

Yogyakarta Yogyakarta is the capital city of the Special Region of Yogyakarta in Indonesia, in the south-central part of the island of Java. As the only Indonesian royal city still ruled by Hamengkubuwono, a monarchy, Yogyakarta is regarded as an importan ...

Semarang Semarang (Javanese script, Javanese: , ''Kutha Semarang'') is the capital and largest city of Central Java province in Indonesia. It was a major port during the Netherlands, Dutch Dutch East Indies, colonial era, and is still an important regio ...

Surabaya Surabaya is the capital city of East Java Provinces of Indonesia, province and the List of Indonesian cities by population, second-largest city in Indonesia, after Jakarta. Located on the northeastern corner of Java island, on the Madura Strai ...

, and

Makassar Makassar ( ), formerly Ujung Pandang ( ), is the capital of the Indonesian Provinces of Indonesia, province of South Sulawesi. It is the largest city in the region of Eastern Indonesia and the country's fifth-largest urban center after Jakarta, ...

, in addition to

Port Moresby (; Tok Pisin: ''Pot Mosbi''), also referred to as Pom City or simply Moresby, is the capital and largest city of Papua New Guinea. It is one of the largest cities in the southwestern Pacific (along with Jayapura) outside of Australia and New ...

in Papua New Guinea. A partial eclipse was visible for parts of

Madagascar Madagascar, officially the Republic of Madagascar, is an island country that includes the island of Madagascar and numerous smaller peripheral islands. Lying off the southeastern coast of Africa, it is the world's List of islands by area, f ...

Southeast Asia Southeast Asia is the geographical United Nations geoscheme for Asia#South-eastern Asia, southeastern region of Asia, consisting of the regions that are situated south of China, east of the Indian subcontinent, and northwest of the Mainland Au ...

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 western

Oceania Oceania ( , ) is a region, geographical region including Australasia, Melanesia, Micronesia, and Polynesia. Outside of the English-speaking world, Oceania is generally considered a continent, while Mainland Australia is regarded as its co ...

Restrictions of observation

To avoid blindness, Indonesian dictator president

Suharto Suharto (8 June 1921 – 27 January 2008) was an Indonesian Officer (armed forces), military officer and politician, and dictator, who was the second and longest serving president of Indonesia, serving from 1967 to 1998. His 32 years rule, cha ...

prohibited local people from observing the eclipse directly through then Information Minister

Harmoko Harmoko (7 February 1939 – 4 July 2021), colloquially referred to as Bung Harmoko, was an Indonesian politician and journalist who was active during the New Order era. He served as the Speaker of the People's Representative Council from 1997 ...

, only allowing foreigners to observe from faraway places. Besides the requirements of closing and draping over all windows and airshafts, children were asked to hide themselves in cupboards and below desks as the eclipsing sun's rays were said to be more dangerous to children than to adults. They were allowed to watch a live broadcast of the eclipse occurring over

Borobudur Borobudur, also transcribed Barabudur (, ), is a 9th-century Mahayana Buddhist temple in Magelang Regency, near the city of Magelang and the town of Muntilan, in Central Java, Indonesia. Constructed of gray andesite-like stone, the temple consi ...

Temple in

Magelang Magelang () is one of six cities in Central Java, the Central Java Province of Indonesia that are administratively independent of the regencies in which they lie geographically. Each of these cities is governed by a mayor rather than a Subdivi ...

Central Java Central Java (, ) is a Provinces of Indonesia, province of Indonesia, located in the middle of the island of Java. Its administrative capital is Semarang. It is bordered by West Java in the west, the Indian Ocean and the Special Region of Yogya ...

, on state-owned TV channel

TVRI TVRI (, Television of the Republic of Indonesia) is an Indonesian national public television network and one of Indonesia's two national Public Broadcasting Institutions, the other being the public radio network RRI. First publicly airing in ...

. Because of the difference in restriction's intensity between regions, some locals did observe it.

Observation

The Chinese Eclipse Observation Team formed by

Beijing Astronomical Observatory Beijing Astronomical Observatory (BAO) is an observatory in Chaoyang District, Beijing, China. It was founded in 1958 and is part of the Chinese Academy of Sciences. The observatory comprises 5 observing stations. The principal observing site for ...

(now incorporated into the

National Astronomical Observatories of China The National Astronomical Observatories, Chinese Academy of Sciences (NAOC, ) is an astronomical research institute operated by the Chinese Academy of Sciences, along with Shanghai Astronomical Observatory, Purple Mountain Observatory and National ...

Purple Mountain Observatory The Purple Mountain Observatory (), also known as Zijinshan Astronomical Observatory, is an astronomical observatory located on the Purple Mountain in the east of Nanjing. The observatory is responsible for calculating the official Chinese calen ...

and Nanjing Astronomical Instrument Factory conducted observation in Port Moresby. Observation in Port Moresby was successful due to the cloudless weather during the eclipse, compared with the cloudy weather in Yogyakarta where teams from many countries went. The Chinese team did

spectrum A spectrum (: spectra or spectrums) is a set of related ideas, objects, or properties whose features overlap such that they blend to form a continuum. The word ''spectrum'' was first used scientifically in optics to describe the rainbow of co ...

observations of the

chromosphere A chromosphere ("sphere of color", from the Ancient Greek words χρῶμα (''khrôma'') 'color' and σφαῖρα (''sphaîra'') 'sphere') is the second layer of a Stellar atmosphere, star's atmosphere, located above the photosphere and below t ...

and

corona Corona (from the Latin for 'crown') most commonly refers to: * Stellar corona, the outer atmosphere of the Sun or another star * Corona (beer), a Mexican beer * Corona, informal term for the coronavirus or disease responsible for the COVID-19 ...

, the broadband corona

luminosity Luminosity is an absolute measure of radiated electromagnetic radiation, electromagnetic energy per unit time, and is synonymous with the radiant power emitted by a light-emitting object. In astronomy, luminosity is the total amount of electroma ...

and

polarization Polarization or polarisation may refer to: Mathematics *Polarization of an Abelian variety, in the mathematics of complex manifolds *Polarization of an algebraic form, a technique for expressing a homogeneous polynomial in a simpler fashion by ...

, and the coloured photography of the whole eclipse process.

Eclipse details

Shown below are two tables displaying details about this particular solar eclipse. The first table outlines times at which the moon's penumbra or umbra attains the specific parameter, and the second table describes various other 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 1983

* A total solar eclipse on June 11. * A partial lunar eclipse on June 25. * An annular solar eclipse on December 4. * A penumbral lunar eclipse on December 20.

Metonic

* Preceded by:

Solar eclipse of August 22, 1979 An annular solar eclipse occurred at the Moon's ascending node of orbit on Wednesday, August 22, 1979, with a magnitude of 0.9329. 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 March 29, 1987 A total solar eclipse occurred at the Moon's ascending node of orbit on Sunday, March 29, 1987, with a magnitude of 1.0013. It was a hybrid event, with only a fraction of its path as total, and longer sections at the start and end as an annular ec ...

Tzolkinex

* Preceded by:

Solar eclipse of April 29, 1976 Solar may refer to: Astronomy * Of or relating to the Sun ** Solar telescope, a special purpose telescope used to observe the Sun ** A device that utilizes solar energy (e.g. "solar panels") ** Solar calendar, a calendar whose dates indicate ...

* Followed by: Solar eclipse of July 22, 1990

Half-Saros

* Preceded by: Lunar eclipse of June 4, 1974 * Followed by: Lunar eclipse of June 15, 1992

Tritos

* Preceded by:

Solar eclipse of July 10, 1972 A total solar eclipse occurred at the Moon's Lunar node, descending node of orbit between Monday, July 10 and Tuesday, July 11, 1972, with a Magnitude of eclipse, magnitude of 1.0379. A solar eclipse occurs when the Moon passes between Earth and t ...

* Followed by:

Solar eclipse of May 10, 1994 An annular solar eclipse occurred at the Moon's Lunar node, descending node of orbit on Tuesday, May 10, 1994, with a Magnitude of eclipse, magnitude of 0.9431. A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totall ...

Solar Saros 127

* Preceded by:

Solar eclipse of May 30, 1965 A total solar eclipse occurred at the Moon's ascending node of orbit between Sunday, May 30 and Monday, May 31, 1965, with a magnitude of 1.0544. A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally or partly obsc ...

* Followed by:

Solar eclipse of June 21, 2001 A total solar eclipse occurred at the Moon's ascending node of orbit on Thursday, June 21, 2001, with a magnitude of 1.0495. It was the first solar eclipse of the 21st century. A solar eclipse occurs when the Moon passes between Earth and the Sun, ...

Inex

* Preceded by:

Solar eclipse of June 30, 1954 A total solar eclipse occurred at the Moon's descending node of orbit on Wednesday, June 30, 1954, with a magnitude of 1.0357. A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally or partly obscuring the image of ...

* Followed by: Solar eclipse of May 20, 2012

Triad

* Preceded by:

Solar eclipse of August 9, 1896 A total solar eclipse occurred at the Moon's Lunar node, descending node of orbit on Sunday, August 9, 1896, with a Magnitude of eclipse, magnitude of 1.0392. A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally o ...

* Followed by: Solar eclipse of April 11, 2070

Solar eclipses of 1982–1985

Saros 127

Metonic series

Tritos series

Inex series

Notes

References

Photos:
Prof. Druckmüller's eclipse photography site

{{DEFAULTSORT:Solar Eclipse Of June 11, 1983 1983 06 11 1983 in science 1983 06 11 June 1983 1983 in Indonesia 1983 in Papua New Guinea