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{{Short description|Total lunar eclipse 9 January 1982}}
{{Use dmy dates|date=January 2019}}
{{Infobox lunar eclipse
| type = total
| image = Lunar eclipse chart close-1982Jan09.png
| caption = The Moon's hourly motion shown right to left
| date = January 9, 1982
| gamma = −0.2916
| magnitude = 1.3310
| saros_ser = 124
| saros_no = 47 of 74
| totality = 77 minutes, 39 seconds
| partiality = 203 minutes, 50 seconds
| penumbral = 319 minutes, 6 seconds
| p1 = 17:16:20
| u1 = 18:13:56
| u2 = 19:17:01
| greatest = 19:55:51
| u3 = 20:34:40
| u4 = 21:37:45
| p4 = 22:35:26
| previous = July 1981
| next = July 1982
}}
A total [[lunar eclipse]] occurred at the Moon’s [[Lunar node|ascending node]] of orbit on Saturday, January 9, 1982,<ref>{{cite web|title=January 9–10, 1982 Total Lunar Eclipse (Blood Moon)|url=https://www.timeanddate.com/eclipse/lunar/1982-january-9|publisher=timeanddate|access-date=6 January 2025}}</ref> with an umbral [[Magnitude of eclipse|magnitude]] of 1.3310. 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 [[Umbra, penumbra and antumbra|shadow]] is smaller. Occurring about 1.3 days after [[Apsis|perigee]] (on January 8, 1982, at 11:30 UTC), the Moon's apparent diameter was larger.<ref>{{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}}</ref>

== Visibility ==
The eclipse was completely visible over much of [[Africa]], [[Europe]], and [[Asia]], seen rising over northeastern [[North America]], eastern [[South America]], and [[west Africa]] and setting over [[Australia]] and the western [[Pacific Ocean]].<ref>{{cite web|title=Total Lunar Eclipse of 1982 Jan 09|url=https://eclipse.gsfc.nasa.gov/LEplot/LEplot1951/LE1982Jan09T.pdf|publisher=NASA|access-date=6 January 2025}}</ref>

{| class=wikitable
|[[File:Lunar eclipse from moon-1982Jan09.png|300px]] [[File:Lunar eclipse chart close-1982Jan09.png|300px]]
|}

== Eclipse details ==
Shown below is a table displaying details about this particular solar eclipse. It describes various parameters pertaining to this eclipse.<ref>{{cite web|title=Total Lunar Eclipse of 1982 Jan 09|url=https://eclipsewise.com/lunar/LEprime/1901-2000/LE1982Jan09Tprime.html|publisher=EclipseWise.com|access-date=6 January 2025}}</ref>

{|class="wikitable" align="{{{align|left}}}" style="margin:{{#ifeq:{{{align}}}|right|0 0 0.5em 1em|0 1em 0.5em 0}}"
|+January 9, 1982 Lunar Eclipse Parameters
! Parameter
! Value
|-
| Penumbral Magnitude
| 2.31475
|-
| Umbral Magnitude
| 1.33103
|-
| Gamma
| −0.29158
|-
| Sun Right Ascension
| 19h23m18.7s
|-
| Sun Declination
| -22°03'36.2"
|-
| Sun Semi-Diameter
| 16'15.8"
|-
| Sun Equatorial Horizontal Parallax
| 08.9"
|-
| Moon Right Ascension
| 07h23m15.4s
|-
| Moon Declination
| +21°45'55.7"
|-
| Moon Semi-Diameter
| 16'32.0"
|-
| Moon Equatorial Horizontal Parallax
| 1°00'40.7"
|-
| ΔT
| 52.3 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]].

{| class="wikitable"
|+ Eclipse season of January 1982
! January 9 Ascending node (full moon) !! [[Solar eclipse of January 25, 1982|January 25]] Descending node (new moon) 
|-
| [[File:Lunar eclipse chart close-1982Jan09.png|200px]] || [[File:SE1982Jan25P.png|200px]]
|- align=center
| [[Lunar eclipse#Types of lunar eclipse|Total lunar eclipse]] Lunar Saros 124 || [[Total eclipse#Types|Partial solar eclipse]] Solar Saros 150
|}

== Related eclipses ==
=== Eclipses in 1982 ===
* '''A total lunar eclipse on January 9.'''
* [[Solar eclipse of January 25, 1982|A partial solar eclipse on January 25]].
* [[Solar eclipse of June 21, 1982|A partial solar eclipse on June 21]].
* [[July 1982 lunar eclipse|A total lunar eclipse on July 6]].
* [[Solar eclipse of July 20, 1982|A partial solar eclipse on July 20]].
* [[Solar eclipse of December 15, 1982|A partial solar eclipse on December 15]].
* [[December 1982 lunar eclipse|A total lunar eclipse on December 30]].

=== Metonic ===
* Preceded by: [[March 1978 lunar eclipse|Lunar eclipse of March 24, 1978]]
* Followed by: [[October 1985 lunar eclipse|Lunar eclipse of October 28, 1985]]

=== Tzolkinex ===
* Preceded by: [[November 1974 lunar eclipse|Lunar eclipse of November 29, 1974]]
* Followed by: [[February 1989 lunar eclipse|Lunar eclipse of February 20, 1989]]

=== Half-Saros ===
* Preceded by: [[Solar eclipse of January 4, 1973]]
* Followed by: [[Solar eclipse of January 15, 1991]]

=== Tritos ===
* Preceded by: [[February 1971 lunar eclipse|Lunar eclipse of February 10, 1971]]
* Followed by: [[December 1992 lunar eclipse|Lunar eclipse of December 9, 1992]]

=== Lunar Saros 124 ===
* Preceded by: [[December 1963 lunar eclipse|Lunar eclipse of December 30, 1963]]
* Followed by: [[January 2000 lunar eclipse|Lunar eclipse of January 21, 2000]]

=== Inex ===
* Preceded by: [[January 1953 lunar eclipse|Lunar eclipse of January 29, 1953]]
* Followed by: [[December 2010 lunar eclipse|Lunar eclipse of December 21, 2010]]

=== Triad ===
* Preceded by: [[March 1895 lunar eclipse|Lunar eclipse of March 11, 1895]]
* Followed by: [[November 2068 lunar eclipse|Lunar eclipse of November 9, 2068]]

=== Lunar eclipses of 1980–1984 ===
{{Lunar eclipse set 1980-1984}}

=== Saros 124 ===
{{Lunar Saros series 124}}

=== Tritos series ===
{{Lunar Tritos series November 2003}}

=== Inex series ===
{{Lunar Inex series December 2010}}

=== Half-Saros cycle ===
A lunar eclipse will be preceded and followed by solar eclipses by 9 years and 5.5 days (a [[Saros (astronomy)#Relationship between lunar and solar saros .28sar.29|half saros]]).<ref>Mathematical Astronomy Morsels, Jean Meeus, p.110, Chapter 18, ''The half-saros''</ref> This lunar eclipse is related to two annular solar eclipses of [[Solar Saros 131]].
{| class=wikitable
![[Solar eclipse of January 4, 1973|January 4, 1973]]
![[Solar eclipse of January 15, 1991|January 15, 1991]]
|-
|[[File:SE1973Jan04A.png|240px]]
|[[File:SE1991Jan15A.png|240px]]
|}

== See also ==
*[[List of lunar eclipses]]
*[[List of 20th-century lunar eclipses]]

== Notes ==
{{reflist}}

== External links ==
* {{LEplot1951 link|1982|Jan|09|T}}

{{Lunar eclipses}}

{{DEFAULTSORT:Lunar eclipse 1982-01}}
[[Category:20th-century lunar eclipses|1982-01]]
[[Category:1982 in science]]
[[Category:January 1982]]

January 1982 lunar eclipse - Revision history

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