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Eclipse season: Fix CW Errors with GenFixes (T1)

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{{Short description|Partial lunar eclipse of 19 November 2021}}
{{Use dmy dates|date=May 2022}}
{{Infobox lunar eclipse
| type = partial
| image = Lunar Eclipse - 2021 (51690221681) (cropped).jpg
| caption = Partiality as viewed from [[Starkville, Mississippi]] at maximum, 9:03 UTC
| date = November 19, 2021
| gamma = −0.4552<ref name="nasa">{{LEplot2001 link|2021|Nov|19|P}}</ref>
| magnitude = 0.9760<ref name="nasa" />
| saros_ser = 126
| saros_no = 46 of 72<ref name="nasa" />
| partiality = 208 minutes, 23 seconds<ref name="nasa" />
| penumbral = 361 minutes, 29 seconds<ref name="nasa" />
| p1 = 6:02:09<ref name="nasa" />
| u1 = 7:18:41<ref name="nasa" />
| greatest = 9:02:53<ref name="nasa" />
| u4 = 10:47:04<ref name="nasa" />
| p4 = 12:03:38<ref name="nasa" />
| previous = May 2021
| next = May 2022
}}
A partial [[lunar eclipse]] occurred at the Moon’s [[Lunar node|ascending node]] of orbit on Friday, November 19, 2021,<ref>{{cite web|title=November 18–19, 2021 Partial Lunar Eclipse|url=https://www.timeanddate.com/eclipse/lunar/2021-november-19|publisher=timeanddate|access-date=18 November 2024}}</ref> with an umbral [[Magnitude of eclipse|magnitude]] of 0.9760. A lunar eclipse occurs when the [[Moon]] moves into the [[Earth's shadow]], causing the Moon to be darkened. A partial lunar eclipse occurs when one part of the Moon is in the Earth's umbra, while the other part is in 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 only about 12 hours before [[Apsis|apogee]] (on November 20, 2021, at 21:10 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=2021&n=136|publisher=timeanddate|access-date=18 November 2024}}</ref>

This was the longest partial lunar eclipse since February 18, 1440, and the longest until February 8, 2669; however, many eclipses, including the [[November 2022 lunar eclipse]], have a longer period of umbral contact at next to 3 hours 40 minutes.<ref>{{Cite web |title=Longest partial eclipse in centuries bathes Moon in red|url=https://www.aljazeera.com/news/2021/11/19/longest-partial-eclipse-in-centuries-bathes-moon-in-red|access-date=19 November 2021 |website=www.aljazeera.com|publisher=Aljazeera}}</ref><ref>{{Cite web |title=What makes certain lunar eclipses so special? (Beginner) - Curious About Astronomy? Ask an Astronomer |url=http://curious.astro.cornell.edu/physics/129-our-solar-system/the-moon/lunar-eclipses/1081-what-makes-certain-lunar-eclipses-so-special |access-date=14 November 2021 |website=curious.astro.cornell.edu |publisher=Cornell Astronomy}}</ref> It was often referred to as a "Beaver Blood Moon" although not technically fulfilling the criteria for a true blood moon (totality).

This lunar eclipse was the second of an [[Tetrad (astronomy)|almost tetrad]], with the others being on [[May 2021 lunar eclipse|May 26, 2021]] (total); [[May 2022 lunar eclipse|May 16, 2022]] (total); and [[November 2022 lunar eclipse|November 8, 2022]] (total).

== Visibility ==
The eclipse was completely visible over [[northeast Asia]], the [[Pacific Ocean]], and [[North America]], seen rising over [[east Asia]] and [[Australia]] and setting over [[South America]].<ref>{{cite web|title=Partial Lunar Eclipse of 2021 Nov 19|url=https://eclipse.gsfc.nasa.gov/LEplot/LEplot2001/LE2021Nov19P.pdf|publisher=NASA|access-date=18 November 2024}}</ref>

{| class=wikitable
|[[File:Lunar eclipse from moon-2021Nov19.png|315px]] [[File:Lunar eclipse chart close-2021Nov19.png|315px]]
|- align=center
|[[File:Visibility Lunar Eclipse 2021-11-19.png|640px]] Visibility map
|}

== Gallery ==
<gallery>
File:Lunar eclipse of 2021 November 19 - Madrid, Spain.jpg|[[Madrid, Spain]], 7:29 UTC
File:211119 Lunar Eclipse in Nara.jpg|[[Nara City]], Japan, 8:51 UTC
File:Eclipsenov19.jpg|[[Toronto, Ontario]], 8:53 UTC
File:Partial Lunar eclipse at Maximum.jpg|[[Warrenton, Virginia]], 9:01 UTC
File:November 2021 Partial Lunar Eclipse.jpg|[[New Plymouth, New Zealand]], 9:03 UTC
File:Lunar Eclipse 2021, Santa Fe, New Mexico.jpg|[[Santa Fe, New Mexico]], 9:03 UTC
File:Partial Lunar Eclipse 2021 November 19 - Near Maximum from Jayapura, Indonesia.jpg|[[Jayapura, Indonesia]], 9:04 UTC
File:Partial lunar eclipse (19-11-2021) (cropped).png|[[Mexico City, Mexico]], 9:08 UTC
File:Partial Lunar Eclipse November 2021.jpg|[[Killingly, Connecticut]], 9:12 UTC
File:Partiallunareclipse.jpg|[[Dayton, Ohio]], 9:25 UTC
File:Partial Lunar Eclipse of November, 2021.jpg|[[Hefei, China]], 10:35 UTC
File:202111 Lunar Eclipse.jpg|Eclipse progression as seen from [[Texas]]
File:20211119 Lunar Eclipse, Weifang, Shandong, China.webm|[[Weifang|Weifang, China]], taken began at 10:31 UTC
</gallery>

== Eclipse details ==
Shown below is a table displaying details about this particular lunar eclipse. It describes various parameters pertaining to this eclipse.<ref>{{cite web|title=Partial Lunar Eclipse of 2021 Nov 19|url=https://eclipsewise.com/lunar/LEprime/2001-2100/LE2021Nov19Pprime.html|publisher=EclipseWise.com|access-date=18 November 2024}}</ref>

{|class="wikitable" align="{{{align|left}}}" style="margin:{{#ifeq:{{{align}}}|right|0 0 0.5em 1em|0 1em 0.5em 0}}"
|+November 19, 2021 Lunar Eclipse Parameters
! Parameter
! Value
|-
| Penumbral Magnitude
| 2.07381
|-
| Umbral Magnitude
| 0.97595
|-
| Gamma
| −0.45525
|-
| Sun Right Ascension
| 15h39m50.9s
|-
| Sun Declination
| -19°32'33.1"
|-
| Sun Semi-Diameter
| 16'11.0"
|-
| Sun Equatorial Horizontal Parallax
| 08.9"
|-
| Moon Right Ascension
| 03h40m24.8s
|-
| Moon Declination
| +19°09'15.5"
|-
| Moon Semi-Diameter
| 14'44.5"
|-
| Moon Equatorial Horizontal Parallax
| 0°54'06.1"
|-
| ΔT
| 70.2 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–December 2021
! November 19 Ascending node (full moon) !! [[Solar eclipse of December 4, 2021|December 4]] Descending node (new moon) 
|-
| [[File:Lunar eclipse chart close-2021Nov19.png|200px]] || [[File:SE2021Dec04T.png|200px]]
|- align=center
| [[Lunar eclipse#Types of lunar eclipse|Partial lunar eclipse]] Lunar Saros 126 || [[Total eclipse#Types|Total solar eclipse]] Solar Saros 152
|}

== Related eclipses ==
=== Eclipses in 2021 ===
* [[May 2021 lunar eclipse|A total lunar eclipse on May 26]].
* [[Solar eclipse of June 10, 2021|An annular solar eclipse on June 10]].
* '''A partial lunar eclipse on November 19.'''
* [[Solar eclipse of December 4, 2021|A total solar eclipse on December 4]].

=== Metonic ===
* Preceded by: [[January 2018 lunar eclipse|Lunar eclipse of January 31, 2018]]
* Followed by: [[September 2025 lunar eclipse|Lunar eclipse of September 7, 2025]]

=== Tzolkinex ===
* Preceded by: [[October 2014 lunar eclipse|Lunar eclipse of October 8, 2014]]
* Followed by: [[December 2028 lunar eclipse|Lunar eclipse of December 31, 2028]]

=== Half-Saros ===
* Preceded by: [[Solar eclipse of November 13, 2012]]
* Followed by: [[Solar eclipse of November 25, 2030]]

=== Tritos ===
* Preceded by: [[December 2010 lunar eclipse|Lunar eclipse of December 21, 2010]]
* Followed by: [[October 2032 lunar eclipse|Lunar eclipse of October 18, 2032]]

=== Lunar Saros 126 ===
* Preceded by: [[November 2003 lunar eclipse|Lunar eclipse of November 9, 2003]]
* Followed by: [[November 2039 lunar eclipse|Lunar eclipse of November 30, 2039]]

=== Inex ===
* Preceded by: [[December 1992 lunar eclipse|Lunar eclipse of December 9, 1992]]
* Followed by: [[October 2050 lunar eclipse|Lunar eclipse of October 30, 2050]]

=== Triad ===
* Preceded by: [[January 1935 lunar eclipse|Lunar eclipse of January 19, 1935]]
* Followed by: [[September 2108 lunar eclipse|Lunar eclipse of September 20, 2108]]

=== Lunar eclipses of 2020–2023 ===
{{Lunar eclipse set 2020-2023}}

=== Metonic series ===
* First eclipse: [[November 2002 lunar eclipse|November 20, 2002]].
* Second eclipse: November 19, 2021.
* Third eclipse: [[November 2040 lunar eclipse|November 18, 2040]].
* Fourth eclipse: [[November 2059 lunar eclipse|November 19, 2059]].
* Fifth eclipse: [[November 2078 lunar eclipse|November 19, 2078]].

=== Saros 126 ===
{{Lunar Saros series 126}}

=== Tritos series ===
{{Lunar Tritos series January 2000}}

=== 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 (sar)|half saros]]).<ref>Mathematical Astronomy Morsels, Jean Meeus, p.110, Chapter 18, ''The half-saros''</ref> This lunar eclipse is related to two total solar eclipses of [[Solar Saros 133]].
{| class=wikitable
![[Solar eclipse of November 13, 2012|November 13, 2012]]
![[Solar eclipse of November 25, 2030|November 25, 2030]]
|-
|[[File:SE2012Nov13T.png|240px]]
|[[File:SE2030Nov25T.png|240px]]
|}

==See also==
* [[List of 21st-century lunar eclipses]]
* [[List of lunar eclipses]]
* [[November 2022 lunar eclipse]]

==References==
<references />

==External links==
{{Commons category|Lunar eclipse of 2021 November 19}}
*{{LEplot2001 link|2021|Nov|19|P}}
*[http://www.hermit.org/eclipse/gen_stats.cgi?mode=query&page=full&qtype=type&body=L&saros=126 Saros cycle 126]

{{Lunar eclipses}}

{{DEFAULTSORT:Lunar eclipse 2021-11}}
[[Category:21st-century lunar eclipses|2021-11]]
[[Category:2021 in science]]
[[Category:November 2021]]

November 2021 lunar eclipse - Revision history

imported>BunnysBot: /* Eclipse season */ Fix CW Errors with GenFixes (T1)