Jump to content

December 1945 lunar eclipse: Difference between revisions

Edit links
From Wikipedia, the free encyclopedia
Browse history interactively
Content deleted Content added
VisualWikitext
start
 
BunnysBot (talk | contribs)
Bots
9,315 edits
m Fix CW Errors with GenFixes (T1), removed stub tag
 
(10 intermediate revisions by 8 users not shown)
Line 1: Line 1:
{{Short description|Total lunar eclipse December 19, 1945}}
[[File:Lunar eclipse chart close-1944Dec29.png|320px|thumb]]
{{Infobox lunar eclipse
A '''penumbral [[lunar eclipse]]''' took place on December 29, 1944.
| type = total
| image = Lunar eclipse chart close-1945Dec19.png
| caption = The Moon's hourly motion shown right to left
| date = December 19, 1945
| gamma = −0.2845
| magnitude = 1.3424
| saros_ser = 124
| saros_no = 45 of 74
| totality = 78 minutes, 53 seconds
| partiality = 204 minutes, 54 seconds
| penumbral = 320 minutes, 52 seconds
| p1 = 23:39:56
| u1 = 0:37:52
| u2 = 1:40:53
| greatest = 2:20:20
| u3 = 2:59:46
| u4 = 4:02:46
| p4 = 5:00:47
| previous = June 1945
| next = June 1946
}}
A total [[lunar eclipse]] occurred at the Moon’s [[Lunar node|ascending node]] of orbit on Wednesday, December 19, 1945,<ref>{{cite web|title=December 18–19, 1945 Total Lunar Eclipse (Blood Moon)|url=https://www.timeanddate.com/eclipse/lunar/1945-december-19|publisher=timeanddate|access-date=20 December 2024}}</ref> with an umbral [[Magnitude of eclipse|magnitude]] of 1.3424. 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 1.6 days after [[Apsis|perigee]] (on December 17, 1945, at 12:40 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=1945&n=136|publisher=timeanddate|access-date=20 December 2024}}</ref>


This lunar eclipse was the second of an [[Tetrad (astronomy)|almost tetrad]], with the others being on [[June 1945 lunar eclipse|June 25, 1945]] (partial); [[June 1946 lunar eclipse|June 14, 1946]] (total); and [[December 1946 lunar eclipse|December 8, 1946]] (total).
==Visibility==
[[File:Lunar eclipse from moon-1944Dec29.png|320px]]


== Visibility ==
==Related lunar eclipses==
The eclipse was completely visible over much of [[North America|North]] and [[South America]], [[west Africa]], [[Europe]], and northern [[Russia]], seen rising over the eastern [[Pacific Ocean]] and setting over [[east Africa|east]] and [[southern Africa]] and much of [[Asia]].<ref>{{cite web|title=Total Lunar Eclipse of 1945 Dec 19|url=https://eclipse.gsfc.nasa.gov/LEplot/LEplot1901/LE1945Dec19T.pdf|publisher=NASA|access-date=20 December 2024}}</ref>


{| class=wikitable
=== Lunar year series ===
|[[File:Lunar eclipse from moon-1945Dec19.png|300px]] [[File:Lunar eclipse chart close-1945Dec19.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 1945 Dec 19|url=https://eclipsewise.com/lunar/LEprime/1901-2000/LE1945Dec19Tprime.html|publisher=EclipseWise.com|access-date=20 December 2024}}</ref>

{|class="wikitable" align="{{{align|left}}}" style="margin:{{#ifeq:{{{align}}}|right|0 0 0.5em 1em|0 1em 0.5em 0}}"
|+December 19, 1945 Lunar Eclipse Parameters
! Parameter
! Value
|-
| Penumbral Magnitude
| 2.32932
|-
| Umbral Magnitude
| 1.34237
|-
| Gamma
| −0.28453
|-
| Sun Right Ascension
| 17h46m11.1s
|-
| Sun Declination
| -23°24'29.1"
|-
| Sun Semi-Diameter
| 16'15.4"
|-
| Sun Equatorial Horizontal Parallax
| 08.9"
|-
| Moon Right Ascension
| 05h46m20.2s
|-
| Moon Declination
| +23°07'25.0"
|-
| Moon Semi-Diameter
| 16'28.3"
|-
| Moon Equatorial Horizontal Parallax
| 1°00'27.1"
|-
| ΔT
| 27.3 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 1945–January 1946
! December 19<br/>Ascending node (full moon) !! [[Solar eclipse of January 3, 1946|January 3]]<br/>Descending node (new moon)
|-
| [[File:Lunar eclipse chart close-1945Dec19.png|200px]] || [[File:SE1946Jan03P.png|200px]]
|- align=center
| [[Lunar eclipse#Types of lunar eclipse|Total lunar eclipse]]<br />Lunar Saros 124 || [[Total eclipse#Types|Partial solar eclipse]]<br />Solar Saros 150
|}

== Related eclipses ==
=== Eclipses in 1945 ===
* [[Solar eclipse of January 14, 1945|An annular solar eclipse on January 14]].
* [[June 1945 lunar eclipse|A partial lunar eclipse on June 25]].
* [[Solar eclipse of July 9, 1945|A total solar eclipse on July 9]].
* '''A total lunar eclipse on December 19.'''

=== Metonic ===
* Preceded by: [[March 1942 lunar eclipse|Lunar eclipse of March 3, 1942]]
* Followed by: [[October 1949 lunar eclipse|Lunar eclipse of October 7, 1949]]

=== Tzolkinex ===
* Preceded by: [[November 1938 lunar eclipse|Lunar eclipse of November 7, 1938]]
* Followed by: [[January 1953 lunar eclipse|Lunar eclipse of January 29, 1953]]

=== Half-Saros ===
* Preceded by: [[Solar eclipse of December 13, 1936]]
* Followed by: [[Solar eclipse of December 25, 1954]]

=== Tritos ===
* Preceded by: [[January 1935 lunar eclipse|Lunar eclipse of January 19, 1935]]
* Followed by: [[November 1956 lunar eclipse|Lunar eclipse of November 18, 1956]]

=== Lunar Saros 124 ===
* Preceded by: [[December 1927 lunar eclipse|Lunar eclipse of December 8, 1927]]
* Followed by: [[December 1963 lunar eclipse|Lunar eclipse of December 30, 1963]]

=== Inex ===
* Preceded by: [[January 1917 lunar eclipse|Lunar eclipse of January 8, 1917]]
* Followed by: [[November 1974 lunar eclipse|Lunar eclipse of November 29, 1974]]

=== Triad ===
* Preceded by: [[February 1859 lunar eclipse|Lunar eclipse of February 17, 1859]]
* Followed by: [[October 2032 lunar eclipse|Lunar eclipse of October 18, 2032]]

=== Lunar eclipses of 1944–1947 ===
{{Lunar eclipse set 1944-1947}}
{{Lunar eclipse set 1944-1947}}

=== Saros 124 ===
It was part of [[Lunar Saros 124|Saros series 124]].

=== 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 total solar eclipses of [[Solar Saros 131]].
{| class=wikitable
![[Solar eclipse of December 13, 1936|December 13, 1936]]
![[Solar eclipse of December 25, 1954|December 25, 1954]]
|-
|[[File:SE1936Dec13A.png|240px]]
|[[File:SE1954Dec25A.png|240px]]
|}


==See also==
==See also==
Line 18: Line 151:


==External links==
==External links==
*{{LEplot1901 link|1944|Dec|29|N}}
*{{LEplot1901 link|1945|Dec|19|T}}


{{Lunar eclipses}}
{{Lunar eclipses}}


{{DEFAULTSORT:Lunar eclipse 1944-12}}
{{DEFAULTSORT:Lunar eclipse 1945-12}}
[[Category:Lunar eclipses|1944-12]]
[[Category:20th-century lunar eclipses|1945-12]]
[[Category:1944 in science]]
[[Category:1945 in science]]

{{lunar-eclipse-stub}}

Latest revision as of 08:23, 27 December 2024

December 1945 lunar eclipse
Total eclipse
The Moon's hourly motion shown right to left
DateDecember 19, 1945
Gamma−0.2845
Magnitude1.3424
Saros cycle124 (45 of 74)
Totality78 minutes, 53 seconds
Partiality204 minutes, 54 seconds
Penumbral320 minutes, 52 seconds
Contacts (UTC)
P123:39:56
U10:37:52
U21:40:53
Greatest2:20:20
U32:59:46
U44:02:46
P45:00:47

A total lunar eclipse occurred at the Moon’s ascending node of orbit on Wednesday, December 19, 1945,[1] with an umbral magnitude of 1.3424. 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 shadow is smaller. Occurring about 1.6 days after perigee (on December 17, 1945, at 12:40 UTC), the Moon's apparent diameter was larger.[2]

This lunar eclipse was the second of an almost tetrad, with the others being on June 25, 1945 (partial); June 14, 1946 (total); and December 8, 1946 (total).

Visibility

[edit]

The eclipse was completely visible over much of North and South America, west Africa, Europe, and northern Russia, seen rising over the eastern Pacific Ocean and setting over east and southern Africa and much of Asia.[3]

Eclipse details

[edit]

Shown below is a table displaying details about this particular solar eclipse. It describes various parameters pertaining to this eclipse.[4]

December 19, 1945 Lunar Eclipse Parameters
Parameter Value
Penumbral Magnitude 2.32932
Umbral Magnitude 1.34237
Gamma −0.28453
Sun Right Ascension 17h46m11.1s
Sun Declination -23°24'29.1"
Sun Semi-Diameter 16'15.4"
Sun Equatorial Horizontal Parallax 08.9"
Moon Right Ascension 05h46m20.2s
Moon Declination +23°07'25.0"
Moon Semi-Diameter 16'28.3"
Moon Equatorial Horizontal Parallax 1°00'27.1"
ΔT 27.3 s

Eclipse season

[edit]
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.

Eclipse season of December 1945–January 1946
December 19
Ascending node (full moon)		 January 3
Descending node (new moon)
Total lunar eclipse
Lunar Saros 124		 Partial solar eclipse
Solar Saros 150
[edit]

Eclipses in 1945

[edit]

Metonic

[edit]

Tzolkinex

[edit]

Half-Saros

[edit]

Tritos

[edit]

Lunar Saros 124

[edit]

Inex

[edit]

Triad

[edit]

Lunar eclipses of 1944–1947

[edit]

This eclipse is a member of a semester series. An eclipse in a semester series of lunar eclipses repeats approximately every 177 days and 4 hours (a semester) at alternating nodes of the Moon's orbit.[5]

The penumbral lunar eclipses on February 9, 1944 and August 4, 1944 occur in the previous lunar year eclipse set.

Lunar eclipse series sets from 1944 to 1947
Descending node   Ascending node
Saros Date
Viewing 		Type
Chart 		Gamma Saros Date
Viewing 		Type
Chart 		Gamma
109 1944 Jul 06
 Penumbral
 1.2597 114 1944 Dec 29
 Penumbral
 −1.0115
119 1945 Jun 25
 Partial
 0.5370 124 1945 Dec 19
 Total
 −0.2845
129 1946 Jun 14
 Total
 −0.2324 134 1946 Dec 08
 Total
 0.3864
139 1947 Jun 03
 Partial
 −0.9850 144 1947 Nov 28
 Penumbral
 1.0838

Saros 124

[edit]

It was part of Saros series 124.

Half-Saros cycle

[edit]

A lunar eclipse will be preceded and followed by solar eclipses by 9 years and 5.5 days (a half saros).[6] This lunar eclipse is related to two total solar eclipses of Solar Saros 131.

December 13, 1936 December 25, 1954

See also

[edit]

Notes

[edit]
  1. ^ "December 18–19, 1945 Total Lunar Eclipse (Blood Moon)". timeanddate. Retrieved 20 December 2024.
  2. ^ "Moon Distances for London, United Kingdom, England". timeanddate. Retrieved 20 December 2024.
  3. ^ "Total Lunar Eclipse of 1945 Dec 19" (PDF). NASA. Retrieved 20 December 2024.
  4. ^ "Total Lunar Eclipse of 1945 Dec 19". EclipseWise.com. Retrieved 20 December 2024.
  5. ^ van Gent, R.H. "Solar- and Lunar-Eclipse Predictions from Antiquity to the Present". A Catalogue of Eclipse Cycles. Utrecht University. Retrieved 6 October 2018.
  6. ^ Mathematical Astronomy Morsels, Jean Meeus, p.110, Chapter 18, The half-saros
[edit]
Retrieved from "https://en.wikipedia.org/enwiki/w/index.php?title=December_1945_lunar_eclipse&oldid=1265513730"