# July 1982 lunar eclipse

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A total [lunar eclipse](/source/Lunar_eclipse) occurred at the Moon's [descending node](/source/Lunar_node) of orbit on Tuesday, July 6, 1982,[1][2] with an umbral [magnitude](/source/Magnitude_of_eclipse) of 1.7180. It was a [central lunar eclipse](/source/List_of_central_lunar_eclipses), in which part of the [Moon](/source/Moon) passed through the [center](/source/Antisolar_point) of the [Earth's shadow](/source/Earth's_shadow). A lunar eclipse occurs when the [Moon](/source/Moon) moves into the [Earth's shadow](/source/Earth's_shadow), causing the Moon to be darkened. A total lunar eclipse occurs when the Moon's near side entirely passes into the Earth's umbral shadow. Unlike a [solar eclipse](/source/Solar_eclipse), which can only be viewed from a relatively small area of the world, a lunar eclipse may be viewed from anywhere on the [night](/source/Night) side of Earth. A total lunar eclipse can last up to nearly two hours, while a total solar eclipse lasts only a few minutes at any given place, because the Moon's [shadow](/source/Umbra,_penumbra_and_antumbra) is smaller. Occurring about 1.2 days after [apogee](/source/Apsis) (on July 5, 1982, at 2:30 UTC), the Moon's apparent diameter was smaller.[3] It was the longest total lunar eclipse since [the August 1859 eclipse](/source/August_1859_lunar_eclipse).[4]: 145

## Visibility

The eclipse was completely visible over western and central [North America](/source/North_America), western [South America](/source/South_America), and [Antarctica](/source/Antarctica), seen rising over northwestern North America, [Australia](/source/Australia), and the western [Pacific Ocean](/source/Pacific_Ocean) and setting over northeastern North America, eastern South America, and [west](/source/West_Africa) and [southern Africa](/source/Southern_Africa).[5]

## Eclipse details

Shown below is a table displaying details about this particular lunar eclipse. It describes various parameters pertaining to this eclipse.[6]

July 6, 1982 Lunar Eclipse Parameters Parameter Value Penumbral Magnitude 2.78600 Umbral Magnitude 1.71795 Gamma −0.05792 Sun Right Ascension 07h00m26.1s Sun Declination +22°42'50.6" Sun Semi-Diameter 15'43.9" Sun Equatorial Horizontal Parallax 08.6" Moon Right Ascension 19h00m26.1s Moon Declination -22°45'58.4" Moon Semi-Diameter 14'43.7" Moon Equatorial Horizontal Parallax 0°54'03.4" ΔT 52.6 s

## Eclipse season

See also: [Eclipse cycle](/source/Eclipse_cycle)

This eclipse is part of an [eclipse season](/source/Eclipse_season), 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](/source/Fortnight). The first and last eclipse in this sequence is separated by one [synodic month](/source/Month#Synodic_month).

Eclipse season of June–July 1982 June 21 Ascending node (new moon) July 6 Descending node (full moon) July 20 Ascending node (new moon) Partial solar eclipse Solar Saros 117 Total lunar eclipse Lunar Saros 129 Partial solar eclipse Solar Saros 155

## Related eclipses

### Eclipses in 1982

- [A total lunar eclipse on January 9](/source/January_1982_lunar_eclipse).
- [A partial solar eclipse on January 25](/source/Solar_eclipse_of_January_25,_1982).
- [A partial solar eclipse on June 21](/source/Solar_eclipse_of_June_21,_1982).
- **A total lunar eclipse on July 6.**
- [A partial solar eclipse on July 20](/source/Solar_eclipse_of_July_20,_1982).
- [A partial solar eclipse on December 15](/source/Solar_eclipse_of_December_15,_1982).
- [A total lunar eclipse on December 30](/source/December_1982_lunar_eclipse).

### Metonic

- Preceded by: [Lunar eclipse of September 16, 1978](/source/September_1978_lunar_eclipse)
- Followed by: [Lunar eclipse of April 24, 1986](/source/April_1986_lunar_eclipse)

### Tzolkinex

- Preceded by: [Lunar eclipse of May 25, 1975](/source/May_1975_lunar_eclipse)
- Followed by: [Lunar eclipse of August 17, 1989](/source/August_1989_lunar_eclipse)

### Half-Saros

- Preceded by: [Solar eclipse of June 30, 1973](/source/Solar_eclipse_of_June_30,_1973)
- Followed by: [Solar eclipse of July 11, 1991](/source/Solar_eclipse_of_July_11,_1991)

### Tritos

- Preceded by: [Lunar eclipse of August 6, 1971](/source/August_1971_lunar_eclipse)
- Followed by: [Lunar eclipse of June 4, 1993](/source/June_1993_lunar_eclipse)

### Lunar Saros 129

- Preceded by: [Lunar eclipse of June 25, 1964](/source/June_1964_lunar_eclipse)
- Followed by: [Lunar eclipse of July 16, 2000](/source/July_2000_lunar_eclipse)

### Inex

- Preceded by: [Lunar eclipse of July 26, 1953](/source/July_1953_lunar_eclipse)
- Followed by: [Lunar eclipse of June 15, 2011](/source/June_2011_lunar_eclipse)

### Triad

- Preceded by: [Lunar eclipse of September 4, 1895](/source/September_1895_lunar_eclipse)
- Followed by: [Lunar eclipse of May 6, 2069](/source/May_2069_lunar_eclipse)

### Half-Saros cycle

A lunar eclipse will be preceded and followed by solar eclipses by 9 years and 5.5 days (a [half saros](/source/Saros_(astronomy)#Relationship_between_lunar_and_solar_saros_.28sar.29)).[7] This lunar eclipse is related to two total solar eclipses of [Solar Saros 136](/source/Solar_Saros_136).

June 30, 1973 July 11, 1991

## See also

- [List of lunar eclipses](/source/List_of_lunar_eclipses)
- [List of 20th-century lunar eclipses](/source/List_of_20th-century_lunar_eclipses)

## Notes

1. ["July 5–6, 1982 Total Lunar Eclipse (Blood Moon)"](https://www.timeanddate.com/eclipse/lunar/1982-july-6). timeanddate. Retrieved 6 January 2025.

1. ["July 6 eclipse to be 'doozy' of the century - UPI Archives"](https://www.upi.com/Archives/1982/06/29/July-6-eclipse-to-be-doozy-of-the-century/1224394171200/). *UPI*. Retrieved 2026-04-09.

1. ["Moon Distances for London, United Kingdom, England"](https://www.timeanddate.com/astronomy/moon/distance.html?year=1982&n=136). timeanddate. Retrieved 6 January 2025.

1. Meeus, Jan (2002). [*More Mathematical Astronomy Morsels*](https://falakmu.id/khgt/dokumen/More%20mathematical%20astronomy%20morsels%20(Jean%20Meeus)%20(Z-Library).pdf). ISBN 0943396743.

1. ["Total Lunar Eclipse of 1982 Jul 06"](https://eclipse.gsfc.nasa.gov/LEplot/LEplot1951/LE1982Jul06T.pdf). NASA. Retrieved 6 January 2025.

1. ["Total Lunar Eclipse of 1982 Jul 06"](https://eclipsewise.com/lunar/LEprime/1901-2000/LE1982Jul06Tprime.html). EclipseWise.com. Retrieved 6 January 2025.

1. Mathematical Astronomy Morsels, Jean Meeus, p.110, Chapter 18, *The half-saros*

## External links

- [NASA: Lunar Eclipses: Past and Future](http://eclipse.gsfc.nasa.gov/lunar.html) - [Index to Five Millennium Catalog of Lunar Eclipses, -1999 to +3000 (2000 BCE to 3000 CE)](http://eclipse.gsfc.nasa.gov/LEcat5/LEcatalog.html) - [Eclipses: 1901 to 2000](http://eclipse.gsfc.nasa.gov/LEcat5/LE1901-2000.htmlLunar)[dead link]
- [Total Lunar Eclipse of 1982 July 06 Photo Gallery](http://www.mreclipse.com/LEphoto/TLE1982Jul/TLE1982Jul.html) - [Photo mideclipse](http://www.mreclipse.com/LEphoto/TLE1982Jul/image/TLE1982-205+6w.JPG)
- [Vulcan Eclipse End of Totality 6 July 1982, by Jerry Lodriguss](http://www.astropix.com/HTML/G_MOON/LUNAR1.HTM)

## References

- Bao-Lin Liu, *Canon of Lunar Eclipses 1500 B.C.-A.D. 3000*, 1992

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Adapted from the Wikipedia article [July 1982 lunar eclipse](https://en.wikipedia.org/wiki/July_1982_lunar_eclipse) by Wikipedia contributors ([contributor history](https://en.wikipedia.org/wiki/July_1982_lunar_eclipse?action=history)). Available under [Creative Commons Attribution-ShareAlike 4.0 International](https://creativecommons.org/licenses/by-sa/4.0/). Changes may have been made.