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{{Short description|Penumbral lunar eclipse November 8, 1984}}
{{Infobox lunar eclipse
| type = penumbral
| image = Lunar eclipse chart close-1984Nov08.png
| caption = The Moon's hourly motion shown right to left
| date = November 8, 1984
| gamma = −1.0900
| magnitude = −0.1825
| saros_ser = 116
| saros_no = 56 of 73
| penumbral = 268 minutes, 23 seconds
| p1 = 15:41:04
| greatest = 17:55:14
| p4 = 20:09:27
| previous = June 1984
| next = May 1985
}}
A penumbral [[lunar eclipse]] occurred at the Moon’s [[Lunar node|ascending node]] of orbit on Thursday, November 8, 1984,<ref>{{cite web|title=November 8–9, 1984 Penumbral Lunar Eclipse|url=https://www.timeanddate.com/eclipse/lunar/1984-november-8|publisher=timeanddate|access-date=6 January 2025}}</ref> with an umbral [[Magnitude of eclipse|magnitude]] of −0.1825. A lunar eclipse occurs when the [[Moon]] moves into the [[Earth's shadow]], causing the Moon to be darkened. A penumbral lunar eclipse occurs when part or all of the Moon's near side passes into the Earth's penumbra. 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. Occurring about 3.8 days after [[Apsis|apogee]] (on November 4, 1984, at 22:40 UTC), the Moon's apparent diameter was smaller.<ref>{{cite web|title=Moon Distances for London, United Kingdom, England|url=https://www.timeanddate.com/astronomy/moon/distance.html?year=1984&n=136|publisher=timeanddate|access-date=6 January 2025}}</ref>

== Visibility ==
The eclipse was completely visible over [[eastern Europe]], [[northeast Africa]], [[Asia]], and western [[Australia]], seen rising over [[western Europe]] and [[west Africa|west]] and [[central Africa]] and setting over eastern Australia, northwestern [[North America]], and the central [[Pacific Ocean]].<ref>{{cite web|title=Penumbral Lunar Eclipse of 1984 Nov 08|url=https://eclipse.gsfc.nasa.gov/LEplot/LEplot1951/LE1984Nov08N.pdf|publisher=NASA|access-date=6 January 2025}}</ref>

{| class=wikitable
|[[File:Lunar eclipse from moon-1984Nov08.png|300px]] [[File:Lunar eclipse chart close-1984Nov08.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=Penumbral Lunar Eclipse of 1984 Nov 08|url=https://eclipsewise.com/lunar/LEprime/1901-2000/LE1984Nov08Nprime.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}}"
|+November 8, 1984 Lunar Eclipse Parameters
! Parameter
! Value
|-
| Penumbral Magnitude
| 0.89929
|-
| Umbral Magnitude
| −0.18247
|-
| Gamma
| −1.08998
|-
| Sun Right Ascension
| 14h56m10.9s
|-
| Sun Declination
| -16°46'34.8"
|-
| Sun Semi-Diameter
| 16'08.9"
|-
| Sun Equatorial Horizontal Parallax
| 08.9"
|-
| Moon Right Ascension
| 02h57m45.0s
|-
| Moon Declination
| +15°51'17.9"
|-
| Moon Semi-Diameter
| 14'55.7"
|-
| Moon Equatorial Horizontal Parallax
| 0°54'47.1"
|-
| ΔT
| 54.2 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 November 1984
! November 8 Ascending node (full moon) !! [[Solar eclipse of November 22, 1984|November 22]] Descending node (new moon) 
|-
| [[File:Lunar eclipse chart close-1984Nov08.png|200px]] || [[File:SE1984Nov22T.png|200px]]
|- align=center
| [[Lunar eclipse#Types of lunar eclipse|Penumbral lunar eclipse]] Lunar Saros 116 || [[Total eclipse#Types|Annular solar eclipse]] Solar Saros 142
|}

== Related eclipses ==
=== Eclipses in 1984 ===
* [[May 1984 lunar eclipse|A penumbral lunar eclipse on May 15]].
* [[Solar eclipse of May 30, 1984|An annular solar eclipse on May 30]].
* [[June 1984 lunar eclipse|A penumbral lunar eclipse on June 13]].
* '''A penumbral lunar eclipse on November 8.'''
* [[Solar eclipse of November 22, 1984|A total solar eclipse on November 22]].

=== Metonic ===
* Preceded by: [[January 1981 lunar eclipse|Lunar eclipse of January 20, 1981]]
* Followed by: [[August 1988 lunar eclipse|Lunar eclipse of August 27, 1988]]

=== Tzolkinex ===
* Preceded by: [[September 1977 lunar eclipse|Lunar eclipse of September 27, 1977]]
* Followed by: [[December 1991 lunar eclipse|Lunar eclipse of December 21, 1991]]

=== Half-Saros ===
* Preceded by: [[Solar eclipse of November 3, 1975]]
* Followed by: [[Solar eclipse of November 13, 1993]]

=== Tritos ===
* Preceded by: [[December 1973 lunar eclipse|Lunar eclipse of December 10, 1973]]
* Followed by: [[October 1995 lunar eclipse|Lunar eclipse of October 8, 1995]]

=== Lunar Saros 116 ===
* Preceded by: [[October 1966 lunar eclipse|Lunar eclipse of October 29, 1966]]
* Followed by: [[November 2002 lunar eclipse|Lunar eclipse of November 20, 2002]]

=== Inex ===
* Preceded by: [[November 1955 lunar eclipse|Lunar eclipse of November 29, 1955]]
* Followed by: [[October 2013 lunar eclipse|Lunar eclipse of October 18, 2013]]

=== Triad ===
* Preceded by: [[January 1898 lunar eclipse|Lunar eclipse of January 8, 1898]]
* Followed by: [[September 2071 lunar eclipse|Lunar eclipse of September 9, 2071]]

=== Lunar eclipses of 1984–1987 ===
{{Lunar eclipse set 1984-1987}}

=== Metonic series ===
{{Metonic lunar eclipse 1984-2041}}

=== Saros 116 ===
{{Lunar Saros series 116}}

=== Tritos series ===
{{Lunar Tritos series September 2006}}

=== Inex series ===
{{Lunar Inex series October 2013}}

=== 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 partial solar eclipses of [[Solar Saros 123]].
{| class=wikitable
![[Solar eclipse of November 3, 1975|November 3, 1975]]
![[Solar eclipse of November 13, 1993|November 13, 1993]]
|-
|[[File:SE1975Nov03P.png|240px]]
|[[File:SE1993Nov13P.png|240px]]
|}

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

== Notes ==
{{reflist}}

==External links ==
* {{LEplot1951 link|1984|Nov|08|N}}

{{Lunar eclipses}}

{{DEFAULTSORT:Lunar eclipse 1984-11}}
[[Category:20th-century lunar eclipses|1984-11]]
[[Category:1984 in science]]
[[Category:November 1984]]

November 1984 lunar eclipse - Revision history

imported>BunnysBot: Fix CW Errors with GenFixes (T1), removed stub tag