July 1982 lunar eclipse
{{Short description|Total lunar eclipse 6 July 1982}}
{{Use dmy dates|date=January 2019}}
{{Infobox lunar eclipse
| type = total
| image = Lunar eclipse chart close-1982Jul06.png
| caption = The Moon's hourly motion shown right to left
| date = July 6, 1982
| gamma = −0.0579
| magnitude = 1.7180
| saros_ser = 129
| saros_no = 36 of 71
| totality = 105 minutes, 44 seconds
| partiality = 235 minutes, 35 seconds
| penumbral = 373 minutes, 51 seconds
| p1 = 4:23:58
| u1 = 5:33:07
| u2 = 6:38:03
| greatest = 7:30:55
| u3 = 8:23:47
| u4 = 9:28:42
| p4 = 10:37:49
| previous = January 1982
| next = December 1982
}}
A total lunar eclipse occurred at the Moon’s descending node of orbit on Tuesday, July 6, 1982,{{cite web|title=July 5–6, 1982 Total Lunar Eclipse (Blood Moon)|url=https://www.timeanddate.com/eclipse/lunar/1982-july-6|publisher=timeanddate|access-date=6 January 2025}} 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.{{cite web|title=Moon Distances for London, United Kingdom, England|url=https://www.timeanddate.com/astronomy/moon/distance.html?year=1982&n=136|publisher=timeanddate|access-date=6 January 2025}} It was the longest total lunar eclipse since the 1859 eclipse.{{cite book |date=2002 |first=Jan |last=Meeus |title=More Mathematical Astronomy Morsels |isbn=0943396743 |url=https://falakmu.id/khgt/dokumen/More%20mathematical%20astronomy%20morsels%20(Jean%20Meeus)%20(Z-Library).pdf}}{{rp|145}}
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.{{cite web|title=Total Lunar Eclipse of 1982 Jul 06|url=https://eclipse.gsfc.nasa.gov/LEplot/LEplot1951/LE1982Jul06T.pdf|publisher=NASA|access-date=6 January 2025}}
| class=wikitable |
Eclipse details
Shown below is a table displaying details about this particular solar eclipse. It describes various parameters pertaining to this eclipse.{{cite web|title=Total Lunar Eclipse of 1982 Jul 06|url=https://eclipsewise.com/lunar/LEprime/1901-2000/LE1982Jul06Tprime.html|publisher=EclipseWise.com|access-date=6 January 2025}}
| class="wikitable" align="{{{align|left}}}" style="margin:{{#ifeq:{{{align}}}|right|0 0 0.5em 1em|0 1em 0.5em 0}}"
|+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 |
{{clear}}
Eclipse season
{{See also|Eclipse cycle}}
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.
| class="wikitable"
|+ Eclipse season of June–July 1982 ! June 21 | July 6 Descending node (full moon) !! July 20 Ascending node (new moon) | |
| 200px | 200px | 200px |
| align=center
| Partial solar eclipse | Total lunar eclipse Lunar Saros 129 | Partial solar eclipse Solar Saros 155 |
Related eclipses
= Eclipses in 1982 =
= 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 =
{{Lunar eclipse set 1980-1984}}
= Saros 129 =
{{Lunar Saros series 129}}
= Tritos series =
{{Lunar Tritos series May 2004}}
= Inex series =
{{Lunar Inex series June 2011}}
= 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 total solar eclipses of Solar Saros 136.
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| 240px |
See also
Notes
{{reflist}}
External links
- [http://eclipse.gsfc.nasa.gov/lunar.html NASA: Lunar Eclipses: Past and Future]
- {{LEplot1951 link|1982|Jul|06|T}}
- [http://eclipse.gsfc.nasa.gov/LEcat5/LEcatalog.html Index to Five Millennium Catalog of Lunar Eclipses, -1999 to +3000 (2000 BCE to 3000 CE)]
- [http://eclipse.gsfc.nasa.gov/LEcat5/LE1901-2000.htmlLunar Eclipses: 1901 to 2000]{{dead link|date=January 2025|bot=medic}}{{cbignore|bot=medic}}
- [http://www.mreclipse.com/LEphoto/TLE1982Jul/TLE1982Jul.html Total Lunar Eclipse of 1982 July 06 Photo Gallery]
- [http://www.mreclipse.com/LEphoto/TLE1982Jul/image/TLE1982-205+6w.JPG Photo mideclipse]
- [http://www.astropix.com/HTML/G_MOON/LUNAR1.HTM 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
{{Lunar eclipses}}
{{DEFAULTSORT:Lunar eclipse 1982-07}}