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August 1943 lunar eclipse

A partial lunar eclipse occurred at the Moon’s descending node of orbit on Sunday, August 15, 1943,[1] with an umbral magnitude of 0.8697. 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 10 hours after perigee (on August 15, 1943, at 9:25 UTC), the Moon's apparent diameter was larger.[2]

August 1943 lunar eclipse
Partial eclipse
The Moon's hourly motion shown right to left
DateAugust 15, 1943
Gamma−0.5534
Magnitude0.8697
Saros cycle137 (24 of 81)
Partiality178 minutes, 23 seconds
Penumbral296 minutes, 44 seconds
Contacts (UTC)
P116:59:57
U117:59:07
Greatest19:28:19
U420:57:30
P421:56:41

Visibility

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The eclipse was completely visible over east Africa, much of Asia, western Australia, and Antarctica, seen rising over eastern South America, west Africa, and Europe and setting over northeast Asia and eastern Australia.[3]

   

Eclipse details

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

August 15, 1943 Lunar Eclipse Parameters
Parameter Value
Penumbral Magnitude 1.81515
Umbral Magnitude 0.86970
Gamma −0.55335
Sun Right Ascension 09h37m47.7s
Sun Declination +14°09'07.3"
Sun Semi-Diameter 15'47.7"
Sun Equatorial Horizontal Parallax 08.7"
Moon Right Ascension 21h38m19.9s
Moon Declination -14°42'08.2"
Moon Semi-Diameter 16'42.3"
Moon Equatorial Horizontal Parallax 1°01'18.6"
ΔT 26.2 s

Eclipse season

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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 August 1943
August 1
Ascending node (new moon)		 August 15
Descending node (full moon)
   
Annular solar eclipse
Solar Saros 125		 Partial lunar eclipse
Lunar Saros 137
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Eclipses in 1943

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Metonic

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Tzolkinex

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Half-Saros

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Tritos

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Lunar Saros 137

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Inex

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Triad

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Lunar eclipses of 1940–1944

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Lunar eclipse series sets from 1940–1944
Ascending node   Descending node
Saros Date
viewing 		Type
chart 		Saros Date
viewing 		Type
chart
102 1940 Mar 23
  		Penumbral
  		107
112 1941 Mar 13
  		Partial
  		117 1941 Sep 05
  		Partial
 
122 1942 Mar 03
  		Total
  		127 1942 Aug 26
  		Total
 
132 1943 Feb 20
  		Partial
  		137 1943 Aug 15
  		Partial
 
142 1944 Feb 09
  		Penumbral
  		147 1944 Aug 04
  		Penumbral
 

Saros 137

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It is part of Saros series 137.

Half-Saros cycle

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A lunar eclipse will be preceded and followed by solar eclipses by 9 years and 5.5 days (a half saros).[5] This lunar eclipse is related to two total solar eclipses of Solar Saros 144.

August 10, 1934 August 20, 1952
   

See also

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This lunar eclipse-related article is a stub. You can help Wikipedia by expanding it.

  1. ^ "August 15–16, 1943 Partial Lunar Eclipse". timeanddate. Retrieved 19 December 2024.
  2. ^ "Moon Distances for London, United Kingdom, England". timeanddate. Retrieved 19 December 2024.
  3. ^ "Partial Lunar Eclipse of 1943 Aug 15" (PDF). NASA. Retrieved 19 December 2024.
  4. ^ "Partial Lunar Eclipse of 1943 Aug 15". EclipseWise.com. Retrieved 19 December 2024.
  5. ^ Mathematical Astronomy Morsels, Jean Meeus, p.110, Chapter 18, The half-saros
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