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Fix CW Errors with GenFixes (T1), removed stub tag

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{{short description|Astronomical event}}
{{Infobox lunar eclipse
| type = penumbral
| image = Lunar eclipse chart close-2031Oct30.png
| caption = The Moon's hourly motion shown right to left
| date = October 30, 2031
| gamma = 1.1774
| magnitude = −0.3193
| saros_ser = 117
| saros_no = 53 of 72
| totality =
| partiality =
| penumbral = 231 minutes, 45 seconds
| p1 = 5:49:29
| u1 =
| u2 =
| greatest = 7:46:45
| u3 =
| u4 =
| p4 = 9:41:15
| previous = June 2031
| next = April 2032
}}
A penumbral [[lunar eclipse]] will occur at the Moon’s [[Lunar node|descending node]] of orbit on Thursday, October 30, 2031,<ref>{{cite web|title=October 29–30, 2031 Penumbral Lunar Eclipse|url=https://www.timeanddate.com/eclipse/lunar/2031-october-30|publisher=timeanddate|access-date=21 November 2024}}</ref> with an umbral [[Magnitude of eclipse|magnitude]] of −0.3193. 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. The Moon's apparent diameter will be near the average diameter because it will occur 7.6 days after [[Apsis|perigee]] (on October 22, 2031, at 16:20 UTC) and 6.6 days before [[Apsis|apogee]] (on November 5, 2031, at 21:45 UTC).<ref>{{cite web|title=Moon Distances for London, United Kingdom, England|url=https://www.timeanddate.com/astronomy/moon/distance.html?year=2031&n=136|publisher=timeanddate|access-date=21 November 2024}}</ref>

== Visibility ==
The eclipse will be completely visible over [[North America]], western [[South America]], and the eastern [[Pacific Ocean]], seen rising over eastern [[Australia]] and [[northeast Asia]] and setting over eastern South America, [[west Africa]], and [[western Europe]].<ref>{{cite web|title=Penumbral Lunar Eclipse of 2031 Oct 30|url=https://eclipse.gsfc.nasa.gov/LEplot/LEplot2001/LE2031Oct30N.pdf|publisher=NASA|access-date=21 November 2024}}</ref>

{| class=wikitable
|[[File:Lunar eclipse from moon-2031Oct30.png|300px]] [[File:Lunar eclipse chart close-2031Oct30.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 2031 Oct 30|url=https://eclipsewise.com/lunar/LEprime/2001-2100/LE2031Oct30Nprime.html|publisher=EclipseWise.com|access-date=21 November 2024}}</ref>

{|class="wikitable" align="{{{align|left}}}" style="margin:{{#ifeq:{{{align}}}|right|0 0 0.5em 1em|0 1em 0.5em 0}}"
|+October 30, 2031 Lunar Eclipse Parameters
! Parameter
! Value
|-
| Penumbral Magnitude
| 0.71726
|-
| Umbral Magnitude
| −0.31925
|-
| Gamma
| 1.17738
|-
| Sun Right Ascension
| 14h17m25.0s
|-
| Sun Declination
| -13°44'38.7"
|-
| Sun Semi-Diameter
| 16'06.3"
|-
| Sun Equatorial Horizontal Parallax
| 08.9"
|-
| Moon Right Ascension
| 02h16m19.7s
|-
| Moon Declination
| +14°49'53.3"
|-
| Moon Semi-Diameter
| 15'32.2"
|-
| Moon Equatorial Horizontal Parallax
| 0°57'01.3"
|-
| ΔT
| 74.8 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 October–November 2031
! October 30 Descending node (full moon) !! [[Solar eclipse of November 14, 2031|November 14]] Ascending node (new moon) 
|-
| [[File:Lunar eclipse chart close-2031Oct30.png|200px]] || [[File:SE2031Nov14H.png|200px]]
|- align=center
| [[Lunar eclipse#Types of lunar eclipse|Penumbral lunar eclipse]] Lunar Saros 117 || [[Total eclipse#Types|Hybrid solar eclipse]] Solar Saros 143
|}

== Related eclipses ==
=== Eclipses in 2031 ===
* [[May 2031 lunar eclipse|A penumbral lunar eclipse on May 7]].
* [[Solar eclipse of May 21, 2031|An annular solar eclipse on May 21]].
* [[June 2031 lunar eclipse|A penumbral lunar eclipse on June 5]].
* '''A penumbral lunar eclipse on October 30.'''
* [[Solar eclipse of November 14, 2031|A hybrid solar eclipse on November 14]].

=== Metonic ===
* Preceded by: [[January 2028 lunar eclipse|Lunar eclipse of January 12, 2028]]
* Followed by: [[August 2035 lunar eclipse|Lunar eclipse of August 19, 2035]]

=== Tzolkinex ===
* Preceded by: [[September 2024 lunar eclipse|Lunar eclipse of September 18, 2024]]
* Followed by: [[December 2038 lunar eclipse|Lunar eclipse of December 11, 2038]]

=== Half-Saros ===
* Preceded by: [[Solar eclipse of October 25, 2022]]
* Followed by: [[Solar eclipse of November 4, 2040]]

=== Tritos ===
* Preceded by: [[November 2020 lunar eclipse|Lunar eclipse of November 30, 2020]]
* Followed by: [[September 2042 lunar eclipse|Lunar eclipse of September 29, 2042]]

=== Lunar Saros 117 ===
* Preceded by: [[October 2013 lunar eclipse|Lunar eclipse of October 18, 2013]]
* Followed by: [[November 2049 lunar eclipse|Lunar eclipse of November 9, 2049]]

=== Inex ===
* Preceded by: [[November 2002 lunar eclipse|Lunar eclipse of November 20, 2002]]
* Followed by: [[October 2060 lunar eclipse|Lunar eclipse of October 9, 2060]]

=== Triad ===
* Preceded by: [[December 1944 lunar eclipse|Lunar eclipse of December 29, 1944]]
* Followed by: [[August 2118 lunar eclipse|Lunar eclipse of August 31, 2118]]

=== Lunar eclipses of 2031–2034 ===
{{Lunar eclipse set 2031-2034}}

=== Saros 117 ===
{{Lunar Saros series 117}}

=== Tritos series ===
{{Lunar Tritos series December 2009}}

=== Inex series ===
{{Lunar Inex series November 2002}}

=== 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 124]].
{| class=wikitable
![[Solar eclipse of October 25, 2022|October 25, 2022]]
![[Solar eclipse of November 4, 2040|November 4, 2040]]
|-
|[[File:SE2022Oct25P.png|240px]]
|[[File:SE2040Nov04P.png|240px]]
|}

== See also ==
*[[List of lunar eclipses]] and [[List of 21st-century lunar eclipses]]

== Notes ==
{{reflist}}

== External links ==
* {{LEplot2001 link|2031|Oct|30|N}}

{{Lunar eclipses}}

{{DEFAULTSORT:Lunar eclipse 2031-10}}
[[Category:21st-century lunar eclipses|2031-10]]
[[Category:Future lunar eclipses|2031-10]]
[[Category:2031 in science]]

October 2031 lunar eclipse - Revision history

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