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March 1932 lunar eclipse
Partial lunar eclipse of March 1932 From Wikipedia, the free encyclopedia
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A partial lunar eclipse occurred at the Moon’s descending node of orbit on Tuesday, March 22, 1932,[1] with an umbral magnitude of 0.9666. 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 21 hours before perigee (on March 23, 1932, at 9:10 UTC), the Moon's apparent diameter was larger.[2]
This was the last of the first set of partial lunar eclipses in Lunar Saros 131, preceding the first total eclipse on April 2, 1950.
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Visibility
The eclipse was completely visible over northeast Asia, Australia, and northwestern North America, seen rising over much of Asia and setting over much of North America and western South America.[3]
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Eclipse details
Shown below is a table displaying details about this particular lunar eclipse. It describes various parameters pertaining to this eclipse.[4]
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Eclipse season
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.
Related eclipses
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Eclipses in 1932
- An annular solar eclipse on March 7.
- A partial lunar eclipse on March 22.
- A total solar eclipse on August 31.
- A partial lunar eclipse on September 14.
Metonic
- Preceded by: Lunar eclipse of June 3, 1928
- Followed by: Lunar eclipse of January 8, 1936
Tzolkinex
- Preceded by: Lunar eclipse of February 8, 1925
- Followed by: Lunar eclipse of May 3, 1939
Half-Saros
- Preceded by: Solar eclipse of March 17, 1923
- Followed by: Solar eclipse of March 27, 1941
Tritos
- Preceded by: Lunar eclipse of April 22, 1921
- Followed by: Lunar eclipse of February 20, 1943
Lunar Saros 131
- Preceded by: Lunar eclipse of March 12, 1914
- Followed by: Lunar eclipse of April 2, 1950
Inex
- Preceded by: Lunar eclipse of April 12, 1903
- Followed by: Lunar eclipse of March 2, 1961
Triad
- Preceded by: Lunar eclipse of May 21, 1845
- Followed by: Lunar eclipse of January 21, 2019
Lunar eclipses of 1930–1933
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 10, 1933 and August 5, 1933 occur in the next lunar year eclipse set.
Saros 131
This eclipse is a part of Saros series 131, repeating every 18 years, 11 days, and containing 72 events. The series started with a penumbral lunar eclipse on May 10, 1427. It contains partial eclipses from July 25, 1553 through March 22, 1932; total eclipses from April 2, 1950 through September 3, 2202; and a second set of partial eclipses from September 13, 2220 through April 9, 2563. The series ends at member 72 as a penumbral eclipse on July 7, 2707.
The longest duration of totality will be produced by member 38 at 100 minutes, 36 seconds on June 28, 2094. All eclipses in this series occur at the Moon’s descending node of orbit.[6]
Eclipses are tabulated in three columns; every third eclipse in the same column is one exeligmos apart, so they all cast shadows over approximately the same parts of the Earth.
Tritos series
This eclipse is a part of a tritos cycle, repeating at alternating nodes every 135 synodic months (≈ 3986.63 days, or 11 years minus 1 month). Their appearance and longitude are irregular due to a lack of synchronization with the anomalistic month (period of perigee), but groupings of 3 tritos cycles (≈ 33 years minus 3 months) come close (≈ 434.044 anomalistic months), so eclipses are similar in these groupings.
Inex series
This eclipse is a part of the long period inex cycle, repeating at alternating nodes, every 358 synodic months (≈ 10,571.95 days, or 29 years minus 20 days). Their appearance and longitude are irregular due to a lack of synchronization with the anomalistic month (period of perigee). However, groupings of 3 inex cycles (≈ 87 years minus 2 months) comes close (≈ 1,151.02 anomalistic months), so eclipses are similar in these groupings.
Half-Saros cycle
A lunar eclipse will be preceded and followed by solar eclipses by 9 years and 5.5 days (a half saros).[8] This lunar eclipse is related to two total solar eclipses of Solar Saros 138.
March 17, 1923 | March 27, 1941 |
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Notes
External links
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