- Source: March 1932 lunar eclipse
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A partial lunar eclipse occurred at the Moon’s descending node of orbit on Tuesday, March 22, 1932, 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.
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.
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.
Eclipse details
Shown below is a table displaying details about this particular solar eclipse. It describes various parameters pertaining to this eclipse.
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
= 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
== Saros 131
=Lunar Saros series 131, has 72 lunar eclipses. Solar Saros 138 interleaves with this lunar saros with an event occurring every 9 years 5 days alternating between each saros series.
This eclipse series began in AD 1427 with a partial eclipse at the southern edge of the Earth's shadow when the Moon was close to its descending node. Each successive Saros cycle, the Moon's orbital path is shifted northward with respect to the Earth's shadow, with the first total eclipse occurring in 1950. For the following 252 years, total eclipses occur, with the central eclipse being predicted to occur in 2078. The first partial eclipse after this is predicted to occur in the year 2220, and the final partial eclipse of the series will occur in 2707. The total lifetime of the lunar Saros series 131 is 1280 years. Solar Saros 138 interleaves with this lunar saros with an event occurring every 9 years 5 days alternating between each saros series.
Because of the ⅓ fraction of days in a Saros cycle, the visibility of each eclipse will differ for an observer at a given fixed locale. For the lunar Saros series 131, the first total eclipse of 1950 had its best visibility for viewers in Eastern Europe and the Middle East because mid-eclipse was at 20:44 UT. The following eclipse in the series occurred approximately 8 hours later in the day with mid-eclipse at 4:47 UT, and was best seen from North America and South America. The third total eclipse occurred approximately 8 hours later in the day than the second eclipse with mid-eclipse at 12:43 UT, and had its best visibility for viewers in the Western Pacific, East Asia, Australia and New Zealand. This cycle of visibility repeats from the initiation to termination of the series, with minor variations. Solar Saros 138 interleaves with this lunar saros with an event occurring every 9 years 5 days alternating between each saros series.
Lunar Saros series 131, repeating every 18 years and 11 days, has a total of 72 lunar eclipse events including 57 umbral lunar eclipses (42 partial lunar eclipses and 15 total lunar eclipses). Solar Saros 138 interleaves with this lunar saros with an event occurring every 9 years 5 days alternating between each saros series.
= Half-Saros cycle
=A lunar eclipse will be preceded and followed by solar eclipses by 9 years and 5.5 days (a half saros). This lunar eclipse is related to two total solar eclipses of Solar Saros 138.
See also
List of lunar eclipses
List of 20th-century lunar eclipses
Notes
External links
1932 Mar 22 chart Eclipse Predictions by Fred Espenak, NASA/GSFC