July 1982 lunar eclipse
Template:Short description Script error: No such module "Unsubst". Template:Infobox lunar eclipse A total lunar eclipse occurred at the Moon’s descending node of orbit on Tuesday, July 6, 1982,[1] with an umbral magnitude of 1.7180. It was a central lunar eclipse, in which part of the Moon passed through the center of the Earth's shadow. A lunar eclipse occurs when the Moon moves into the 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, which can only be viewed from a relatively small area of the world, a lunar eclipse may be viewed from anywhere on the 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 is smaller. Occurring about 1.2 days after apogee (on July 5, 1982, at 2:30 UTC), the Moon's apparent diameter was smaller.[2] It was the longest total lunar eclipse since the 1859 eclipse.[3]Template:Rp
Visibility
The eclipse was completely visible over western and central North America, western South America, and Antarctica, seen rising over northwestern North America, Australia, and the western Pacific Ocean and setting over northeastern North America, eastern South America, and west and southern Africa.[4]
| File:Lunar eclipse from moon-1982Jul06.png File:Lunar eclipse chart close-1982Jul06.png |
Eclipse details
Shown below is a table displaying details about this particular solar eclipse. It describes various parameters pertaining to this eclipse.[5]
| 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
Script error: No such module "Labelled list hatnote". This eclipse is part of an 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. The first and last eclipse in this sequence is separated by one synodic month.
| June 21 Ascending node (new moon) |
July 6 Descending node (full moon) |
July 20 Ascending node (new moon) |
|---|---|---|
| File:SE1982Jun21P.png | File:Lunar eclipse chart close-1982Jul06.png | File:SE1982Jul20P.png |
| 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.
- 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: Lunar eclipse of September 16, 1978
- Followed by: Lunar eclipse of April 24, 1986
Tzolkinex
- Preceded by: Lunar eclipse of May 25, 1975
- Followed by: Lunar eclipse of August 17, 1989
Half-Saros
- Preceded by: Solar eclipse of June 30, 1973
- Followed by: Solar eclipse of July 11, 1991
Tritos
- Preceded by: Lunar eclipse of August 6, 1971
- Followed by: Lunar eclipse of June 4, 1993
Lunar Saros 129
- Preceded by: Lunar eclipse of June 25, 1964
- Followed by: Lunar eclipse of July 16, 2000
Inex
- Preceded by: Lunar eclipse of July 26, 1953
- Followed by: Lunar eclipse of June 15, 2011
Triad
- Preceded by: Lunar eclipse of September 4, 1895
- Followed by: Lunar eclipse of May 6, 2069
Lunar eclipses of 1980–1984
Template:Lunar eclipse set 1980-1984
Saros 129
This eclipse is a part of Saros series 129, repeating every 18 years, 11 days, and containing 71 events. The series started with a penumbral lunar eclipse on June 10, 1351. It contains partial eclipses from September 26, 1531 through May 11, 1892; total eclipses from May 24, 1910 through September 8, 2090; and a second set of partial eclipses from September 20, 2108 through April 26, 2469. The series ends at member 71 as a penumbral eclipse on July 24, 2613.
The longest duration of totality was produced by member 37 at 106 minutes, 24 seconds on July 16, 2000. All eclipses in this series occur at the Moon’s descending node of orbit.[6]
| Greatest | First | |||
|---|---|---|---|---|
| File:Lunar eclipse chart close-2000jul16.png The greatest eclipse of the series occurred on 2000 Jul 16, lasting 106 minutes, 24 seconds.[7] |
Penumbral | Partial | Total | Central |
| 1351 Jun 10 |
1531 Sep 26 |
1910 May 24 File:Lunar eclipse chart close-1910May24.png |
1946 Jun 14 File:Lunar eclipse chart close-1946Jun14.png | |
| Last | ||||
| Central | Total | Partial | Penumbral | |
| 2036 Aug 07 File:Lunar eclipse chart close-2036Aug07.png |
2090 Sep 08 File:Lunar eclipse chart close-2090Sep08.png |
2469 Apr 26 |
2613 Jul 24 | |
Eclipses are tabulated in three columns; every third eclipse in the same column is one exeligmos apart, so they all cast shadows over approximately the same parts of the Earth.
Tritos series
Template:Lunar Tritos series May 2004
Inex series
This eclipse is a part of the long period inex cycle, repeating at alternating nodes, every 358 synodic months (≈ 10,571.95 days, or 29 years minus 20 days). Their appearance and longitude are irregular due to a lack of synchronization with the anomalistic month (period of perigee). However, groupings of 3 inex cycles (≈ 87 years minus 2 months) comes close (≈ 1,151.02 anomalistic months), so eclipses are similar in these groupings.
| Series members between 1801 and 2200 | |||||
|---|---|---|---|---|---|
| 1808 Nov 03 (Saros 123) |
1837 Oct 13 (Saros 124) |
1866 Sep 24 (Saros 125) | |||
| 1895 Sep 04 (Saros 126) |
1924 Aug 14 (Saros 127) |
1953 Jul 26 (Saros 128) | |||
| File:Lunar eclipse chart close-1924Aug14.png | File:Lunar eclipse from moon-1924Aug14.png | File:Lunar eclipse chart close-1953Jul26.png | File:Lunar eclipse from moon-1953Jul26.png | ||
| 1982 Jul 06 (Saros 129) |
2011 Jun 15 (Saros 130) |
2040 May 26 (Saros 131) | |||
| File:Lunar eclipse chart close-1982Jul06.png | File:Lunar eclipse from moon-1982Jul06.png | File:Lunar eclipse chart close-2011jun15.png | File:Lunar eclipse from moon-2011Jun15.png | File:Lunar eclipse chart close-2040May26.png | File:Lunar eclipse from moon-2040May26.png |
| 2069 May 06 (Saros 132) |
2098 Apr 15 (Saros 133) |
2127 Mar 28 (Saros 134) | |||
| File:Lunar eclipse chart close-2069May06.png | File:Lunar eclipse from moon-2069May06.png | File:Lunar eclipse chart close-2098Apr15.png | File:Lunar eclipse from moon-2098Apr15.png | ||
| 2156 Mar 07 (Saros 135) |
2185 Feb 14 (Saros 136) | ||||
Half-Saros cycle
A lunar eclipse will be preceded and followed by solar eclipses by 9 years and 5.5 days (a half saros).[8] This lunar eclipse is related to two total solar eclipses of Solar Saros 136.
| June 30, 1973 | July 11, 1991 |
|---|---|
| File:SE1973Jun30T.png | File:SE1991Jul11T.png |
See also
Notes
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- ↑ Listing of Eclipses of series 129
- ↑ Mathematical Astronomy Morsels, Jean Meeus, p.110, Chapter 18, The half-saros
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External links
- NASA: Lunar Eclipses: Past and Future
- 1982 Jul 06 chart Eclipse Predictions by Fred Espenak, NASA/GSFC
- Index to Five Millennium Catalog of Lunar Eclipses, -1999 to +3000 (2000 BCE to 3000 CE)
- Eclipses: 1901 to 2000Script error: No such module "Unsubst".Template:Cbignore
- Total Lunar Eclipse of 1982 July 06 Photo Gallery
- Vulcan Eclipse End of Totality 6 July 1982, by Jerry Lodriguss
References
- Bao-Lin Liu, Canon of Lunar Eclipses 1500 B.C.-A.D. 3000, 1992
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