A partial

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 Tuesday, July 20, 1982, 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 0.4643. 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 partial solar eclipse occurs in the polar regions of the Earth when the center of the Moon's shadow misses the Earth. This was the third of four partial solar eclipses in 1982, with the others occurring on

January 25 Events Pre-1600 * 41 – After a night of negotiation, Claudius is accepted as Roman emperor by the Senate. * 750 – In the Battle of the Zab, the Abbasid rebels defeat the Umayyad Caliphate, leading to the overthrow of the dyn ...

June 21 Events Pre-1600 * 533 – A Byzantine expeditionary fleet under Belisarios sails from Constantinople to attack the Vandals in Africa, via Greece and Sicily. * 1307 – Külüg Khan is enthroned as Khagan of the Mongols and Wuzong o ...

, and

December 15 Events Pre-1600 * 533 – Vandalic War: Byzantine Empire, Byzantine general Belisarius defeats the Vandals, commanded by King Gelimer, at the Battle of Tricamarum. * 687 – Pope Sergius I is elected as a compromise between antipopes P ...

. A partial eclipse was visible for parts of the northern

Soviet Union The Union of Soviet Socialist Republics. (USSR), commonly known as the Soviet Union, was a List of former transcontinental countries#Since 1700, transcontinental country that spanned much of Eurasia from 1922 until Dissolution of the Soviet ...

, northern

Alaska Alaska ( ) is a non-contiguous U.S. state on the northwest extremity of North America. Part of the Western United States region, it is one of the two non-contiguous U.S. states, alongside Hawaii. Alaska is also considered to be the north ...

, northern

Canada Canada is a country in North America. Its Provinces and territories of Canada, ten provinces and three territories extend from the Atlantic Ocean to the Pacific Ocean and northward into the Arctic Ocean, making it the world's List of coun ...

Greenland Greenland is an autonomous territory in the Danish Realm, Kingdom of Denmark. It is by far the largest geographically of three constituent parts of the kingdom; the other two are metropolitan Denmark and the Faroe Islands. Citizens of Greenlan ...

, and

Northern Europe The northern region of Europe has several definitions. A restrictive definition may describe northern Europe as being roughly north of the southern coast of the Baltic Sea, which is about 54th parallel north, 54°N, or may be based on other ge ...

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 ...

. The first and last eclipse in this sequence is separated by one

synodic month In lunar calendars, a lunar month is the time between two successive Syzygy (astronomy), syzygies of the same type: new moons or full moons. The precise definition varies, especially for the beginning of the month. Variations In Shona people, S ...

Related eclipses

Eclipses in 1982

* A total lunar eclipse on January 9. * A partial solar eclipse on January 25. * A partial solar eclipse on June 21. * A total lunar eclipse on July 6. * A partial solar eclipse on July 20. * A partial solar eclipse on December 15. * A total lunar eclipse on December 30.

Metonic

* Preceded by: Solar eclipse of October 2, 1978

Tzolkinex

* Followed by: Solar eclipse of August 31, 1989

Half-Saros

* Preceded by: Lunar eclipse of July 15, 1973 * Followed by: Lunar eclipse of July 26, 1991

Tritos

* Preceded by:

Solar eclipse of August 20, 1971 A partial solar eclipse occurred at the Moon's descending node of orbit between Friday, August 20 and Saturday, August 21, 1971, with a magnitude of 0.508. A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally or p ...

Solar Saros 155

* Preceded by: Solar eclipse of July 9, 1964 * Followed by:

Solar eclipse of July 31, 2000 A partial solar eclipse occurred at the Moon’s ascending node of orbit between Sunday, July 30 and Monday, July 31, 2000, with a magnitude of 0.6034. A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally or partl ...

Inex

* Preceded by: Solar eclipse of August 9, 1953 * Followed by: Solar eclipse of July 1, 2011

Triad

* Preceded by: Solar eclipse of September 18, 1895 * Followed by: Solar eclipse of May 20, 2069

Solar eclipses of 1979–1982

Saros 155

Metonic series

Tritos series

Inex series

References

External links

{{Solar eclipses 1982 7 20 1982 in science 1982 7 20 July 1982