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{{short description|Penumbral}}
{{Infobox lunar eclipse
| type = penumbral
| image = Lunar eclipse chart close-2031May07.png
| caption = The Moon's hourly motion shown right to left
| date = May 7, 2031
| gamma = −1.0694
| magnitude = −0.0892
| saros_ser = 112
| saros_no = 66 of 72
| totality =
| partiality =
| penumbral = 237 minutes, 21 seconds
| p1 = 1:52:06
| u1 =
| u2 =
| greatest = 3:41:03
| u3 =
| u4 =
| p4 = 5:49:27
| previous = December 2030
| next = June 2031
}}
A penumbral [[lunar eclipse]] will occur at the Moon’s [[Lunar node|ascending node]] of orbit on Wednesday, May 7, 2031,<ref>{{cite web|title=May 6–7, 2031 Penumbral Lunar Eclipse|url=https://www.timeanddate.com/eclipse/lunar/2031-may-7|publisher=timeanddate|access-date=21 November 2024}}</ref> with an umbral [[Magnitude of eclipse|magnitude]] of −0.0892. 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 2 days before [[Apsis|perigee]] (on May 9, 2031, at 3:35 UTC), the Moon's apparent diameter will be larger.<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 eastern [[North America]], [[South America]], [[Antarctica]], and [[west Africa]], seen rising over western North America and the eastern [[Pacific Ocean]] and setting over [[Africa]], [[Europe]], and the [[Middle East]].<ref>{{cite web|title=Penumbral Lunar Eclipse of 2031 May 07|url=https://eclipse.gsfc.nasa.gov/LEplot/LEplot2001/LE2031May07N.pdf|publisher=NASA|access-date=21 November 2024}}</ref>

{| class=wikitable
|[[File:Lunar eclipse from moon-2031May07.png|300px]] [[File:Lunar eclipse chart close-2031May07.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 May 07|url=https://eclipsewise.com/lunar/LEprime/2001-2100/LE2031May07Nprime.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}}"
|+May 7, 2031 Lunar Eclipse Parameters
! Parameter
! Value
|-
| Penumbral Magnitude
| 0.88267
|-
| Umbral Magnitude
| −0.08921
|-
| Gamma
| −1.06949
|-
| Sun Right Ascension
| 02h55m49.7s
|-
| Sun Declination
| +16°44'40.2"
|-
| Sun Semi-Diameter
| 15'51.2"
|-
| Sun Equatorial Horizontal Parallax
| 08.7"
|-
| Moon Right Ascension
| 14h54m58.0s
|-
| Moon Declination
| -17°47'29.4"
|-
| Moon Semi-Diameter
| 16'18.7"
|-
| Moon Equatorial Horizontal Parallax
| 0°59'52.0"
|-
| ΔT
| 74.5 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 [[month#Synodic month|synodic month]].

{| class="wikitable"
|+ Eclipse season of May–June 2031
! May 7 Ascending node (full moon) !! [[Solar eclipse of May 21, 2031|May 21]] Descending node (new moon) !! [[June 2031 lunar eclipse|June 5]] Ascending node (full moon) 
|-
| [[File:Lunar eclipse chart close-2031May07.png|200px]] || [[File:SE2031May21A.png|200px]] || [[File:Lunar eclipse chart close-2031Jun05.png|200px]]
|- align=center
| [[Lunar eclipse#Types of lunar eclipse|Penumbral lunar eclipse]] Lunar Saros 112 || [[Total eclipse#Types|Annular solar eclipse]] Solar Saros 138 || [[Lunar eclipse#Types of lunar eclipse|Penumbral lunar eclipse]] Lunar Saros 150
|}

== Related eclipses ==
=== Eclipses in 2031 ===
* '''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]].
* [[October 2031 lunar eclipse|A penumbral lunar eclipse on October 30]].
* [[Solar eclipse of November 14, 2031|A hybrid solar eclipse on November 14]].

=== Metonic ===
* Preceded by: [[July 2027 lunar eclipse|Lunar eclipse of July 18, 2027]]
* Followed by: [[February 2035 lunar eclipse|Lunar eclipse of February 22, 2035]]

=== Tzolkinex ===
* Preceded by: [[March 2024 lunar eclipse|Lunar eclipse of March 25, 2024]]
* Followed by: [[June 2038 lunar eclipse|Lunar eclipse of June 17, 2038]]

=== Half-Saros ===
* Preceded by: [[Solar eclipse of April 30, 2022]]
* Followed by: [[Solar eclipse of May 11, 2040]]

=== Tritos ===
* Preceded by: [[June 2020 lunar eclipse|Lunar eclipse of June 5, 2020]]
* Followed by: [[April 2042 lunar eclipse|Lunar eclipse of April 5, 2042]]

=== Lunar Saros 112 ===
* Preceded by: [[April 2013 lunar eclipse|Lunar eclipse of April 25, 2013]]
* Followed by: [[May 2049 lunar eclipse|Lunar eclipse of May 17, 2049]]

=== Inex ===
* Preceded by: [[May 2002 lunar eclipse|Lunar eclipse of May 26, 2002]]
* Followed by: [[April 2060 lunar eclipse|Lunar eclipse of April 15, 2060]]

=== Triad ===
* Preceded by: [[July 1944 lunar eclipse|Lunar eclipse of July 6, 1944]]
* Followed by: [[March 2118 lunar eclipse|Lunar eclipse of March 7, 2118]]

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

=== Saros 112 ===
{{Lunar Saros series 112}}

=== Metonic series ===
{{Metonic lunar eclipse 2031-2088}}

=== Tritos series ===
{{Lunar Tritos series July 2009}}

=== Inex series ===
{{Lunar Inex series May 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 119]].
{| class=wikitable
![[Solar eclipse of April 30, 2022|April 30, 2022]]
![[Solar eclipse of May 11, 2040|May 11, 2040]]
|-
|[[File:SE2022Apr30P.png|240px]]
|[[File:SE2040May11P.png|240px]]
|}

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

== Notes ==
{{reflist}}

== External links ==
* {{LEplot2001 link|2031|May|07|N}}

{{Lunar eclipses}}

{{DEFAULTSORT:Lunar eclipse 2031-05}}
[[Category:21st-century lunar eclipses|2031-05]]
[[Category:Future lunar eclipses|2031-05]]
[[Category:2031 in science]]

May 2031 lunar eclipse - Revision history

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