View source for December 1992 lunar eclipse

{{Short description|Total lunar eclipse December 9, 1992}}
{{Infobox lunar eclipse
| type       = total
| image      = Lunar eclipse chart close-1992Dec09.png
| caption    = The Moon's hourly motion shown right to left
| date       = December 9, 1992
| gamma      = 0.3144
| magnitude  = 1.2709
| saros_ser  = 125
| saros_no   = 47 of 72
| totality   = 73 minutes, 53 seconds
| partiality = 208 minutes, 45 seconds
| penumbral  = 334 minutes, 5 seconds
| p1         = 20:57:01
| u1         = 21:59:45
| u2         = 23:07:10
| greatest   = 23:44:06
| u3         = 0:21:03
| u4         = 1:28:29
| p4         = 2:31:05
| previous   = June 1992
| next       = June 1993
}}
A total [[lunar eclipse]] occurred at the Moon’s [[Lunar node|descending node]] of orbit on Wednesday, December 9, 1992,<ref>{{cite web|title=December 9–10, 1992 Total Lunar Eclipse (Blood Moon)|url=https://www.timeanddate.com/eclipse/lunar/1992-december-9|publisher=timeanddate|access-date=8 January 2025}}</ref> with an umbral [[Magnitude of eclipse|magnitude]] of 1.2709. 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 3.9 days before [[Apsis|perigee]] (on December 13, 1992, at 21:05 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=1992&n=136|publisher=timeanddate|access-date=8 January 2025}}</ref>

According to [[Fred Espenak]], this was the darkest eclipse in a decade, caused by the June 15, 1991 [[Mount Pinatubo#1991 eruption|eruptions of Mount Pinatubo]] in the [[Philippines]].<ref>[http://www.mreclipse.com/LEphoto/LEgallery1/LEgallery1.html Totality - 1992 Dec]</ref>

== Visibility ==
The eclipse was completely visible over northern [[North America]], [[Europe]], [[Africa]], and [[west Asia|west]], [[central Asia|central]], and [[north Asia]], seen rising over much of [[North America]] and [[South America]] and setting over the eastern half of [[Asia]].<ref>{{cite web|title=Total Lunar Eclipse of 1992 Dec 09|url=https://eclipse.gsfc.nasa.gov/LEplot/LEplot1951/LE1992Dec09T.pdf|publisher=NASA|access-date=8 January 2025}}</ref>

{| class=wikitable
|[[File:Lunar eclipse from moon-1992Dec09.png|300px]] [[File:Lunar eclipse chart close-1992Dec09.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 1992 Dec 09|url=https://eclipsewise.com/lunar/LEprime/1901-2000/LE1992Dec09Tprime.html|publisher=EclipseWise.com|access-date=8 January 2025}}</ref>

{|class="wikitable" align="{{{align|left}}}" style="margin:{{#ifeq:{{{align}}}|right|0 0 0.5em 1em|0 1em 0.5em 0}}"
|+December 9, 1992 Lunar Eclipse Parameters
! Parameter
! Value
|-
| Penumbral Magnitude
| 2.29154
|-
| Umbral Magnitude
| 1.27090
|-
| Gamma
| 0.31438
|-
| Sun Right Ascension
| 17h08m34.5s
|-
| Sun Declination
| -22°54'48.3"
|-
| Sun Semi-Diameter
| 16'14.5"
|-
| Sun Equatorial Horizontal Parallax
| 08.9"
|-
| Moon Right Ascension
| 05h08m35.3s
|-
| Moon Declination
| +23°13'09.8"
|-
| Moon Semi-Diameter
| 15'54.8"
|-
| Moon Equatorial Horizontal Parallax
| 0°58'24.2"
|-
| ΔT
| 59.1 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 December 1992
! December 9<br/>Descending node (full moon)<br/> !! [[Solar eclipse of December 24, 1992|December 24]]<br/>Ascending node (new moon)<br/>
|-
| [[File:Lunar eclipse chart close-1992Dec09.png|200px]] || [[File:SE1992Dec24P.png|200px]]
|- align=center
| [[Lunar eclipse#Types of lunar eclipse|Total lunar eclipse]]<br />Lunar Saros 125 || [[Total eclipse#Types|Partial solar eclipse]]<br />Solar Saros 151
|}

== Related eclipses ==
=== Eclipses in 1992 ===
* [[Solar eclipse of January 4, 1992|An annular solar eclipse on January 4]].
* [[June 1992 lunar eclipse|A partial lunar eclipse on June 15]].
* [[Solar eclipse of June 30, 1992|A total solar eclipse on June 30]].
* '''A total lunar eclipse on December 9.'''
* [[Solar eclipse of December 24, 1992|A partial solar eclipse on December 24]].

=== Metonic ===
* Preceded by: [[February 1989 lunar eclipse|Lunar eclipse of February 20, 1989]]
* Followed by: [[September 1996 lunar eclipse|Lunar eclipse of September 27, 1996]]

=== Tzolkinex ===
* Preceded by: [[October 1985 lunar eclipse|Lunar eclipse of October 28, 1985]]
* Followed by: [[January 2000 lunar eclipse|Lunar eclipse of January 21, 2000]]

=== Half-Saros ===
* Preceded by: [[Solar eclipse of December 4, 1983]]
* Followed by: [[Solar eclipse of December 14, 2001]]

=== Tritos ===
* Preceded by: [[January 1982 lunar eclipse|Lunar eclipse of January 9, 1982]]
* Followed by: [[November 2003 lunar eclipse|Lunar eclipse of November 9, 2003]]

=== Lunar Saros 125 ===
* Preceded by: [[November 1974 lunar eclipse|Lunar eclipse of November 29, 1974]]
* Followed by: [[December 2010 lunar eclipse|Lunar eclipse of December 21, 2010]]

=== Inex ===
* Preceded by: [[December 1963 lunar eclipse|Lunar eclipse of December 30, 1963]]
* Followed by: [[November 2021 lunar eclipse|Lunar eclipse of November 19, 2021]]

=== Triad ===
* Preceded by: [[February 1906 lunar eclipse|Lunar eclipse of February 9, 1906]]
* Followed by: [[October 2079 lunar eclipse|Lunar eclipse of October 10, 2079]]

=== Lunar eclipses of 1991–1994 ===
{{Lunar eclipse set 1991-1994}}

=== Saros 125 ===
{{Lunar Saros series 125}}

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

=== Inex series ===
{{Lunar Inex series November 2021}}

=== 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 132]].
{| class=wikitable
![[Solar eclipse of December 4, 1983|December 4, 1983]]
![[Solar eclipse of December 14, 2001|December 14, 2001]]
|-
|[[File:SE1983Dec04A.png|240px]]
|[[File:SE2001Dec14A.png|240px]]
|}

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

== Notes ==
{{reflist}}

== External links ==
* {{LEplot1951 link|1992|Dec|09|T}}
* [http://mreclipse.com/LEphoto/LEgallery1/LEgallery1.html Lunar Eclipse] Photo Gallery 1  1982 - 1993 Photographs by [[Fred Espenak]]

{{Lunar eclipses}}

{{DEFAULTSORT:Lunar eclipse 1992-12}}
[[Category:20th-century lunar eclipses|1992-12]]
[[Category:1992 in science]]
[[Category:December 1992]]