A partial lunar eclipse occurred at the Moon’s descending node of orbit on Thursday, November 18, 1937, with an umbral magnitude of 0.1443. 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 18 hours before perigee (on November 19, 1937, at 0:30 UTC), the Moon's apparent diameter was larger.
Visibility The eclipse was completely visible over much of northeast Asia, North America, and northwestern South America, seen rising over east Asia and Australia and setting over much of South America, west Africa, and western Europe.
Eclipse details Shown below is a table displaying details about this particular solar eclipse. It describes various parameters pertaining to this eclipse.
+November 18, 1937 Lunar Eclipse Parameters Parameter Value Penumbral Magnitude 1.11408 Umbral Magnitude 0.14432 Gamma 0.94213 Sun Right Ascension 15h32m59.8s Sun Declination -19°09'44.0" Sun Semi-Diameter 16'11.0" Sun Equatorial Horizontal Parallax 08.9" Moon Right Ascension 03h32m24.7s Moon Declination +20°06'50.3" Moon Semi-Diameter 16'41.3" Moon Equatorial Horizontal Parallax 1°01'14.9" ΔT 23.9 s
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.
+ Eclipse season of November–December 1937 November 18Descending node (full moon) December 2Ascending node (new moon) Partial lunar eclipseLunar Saros 115 Annular solar eclipseSolar Saros 141
Related eclipses Eclipses in 1937 A penumbral lunar eclipse on May 25. A total solar eclipse on June 8. A partial lunar eclipse on November 18. An annular solar eclipse on December 2.
Metonic Preceded by: Lunar eclipse of January 30, 1934 Followed by: Lunar eclipse of September 5, 1941
Tzolkinex Preceded by: Lunar eclipse of October 7, 1930 Followed by: Lunar eclipse of December 29, 1944
Half-Saros Preceded by: Solar eclipse of November 12, 1928 Followed by: Solar eclipse of November 23, 1946
Tritos Preceded by: Lunar eclipse of December 19, 1926 Followed by: Lunar eclipse of October 18, 1948
Lunar Saros 115 Preceded by: Lunar eclipse of November 7, 1919 Followed by: Lunar eclipse of November 29, 1955
Inex Preceded by: Lunar eclipse of December 7, 1908 Followed by: Lunar eclipse of October 29, 1966
Triad Preceded by: Lunar eclipse of January 17, 1851 Followed by: Lunar eclipse of September 18, 2024
Lunar eclipses of 1937–1940
Saros 115
Tritos series
Inex 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).Mathematical Astronomy Morsels, Jean Meeus, p.110, Chapter 18, The half-saros This lunar eclipse is related to two partial solar eclipses of Solar Saros 122. November 12, 1928November 23, 1946
See also List of lunar eclipses List of 20th-century lunar eclipses
Notes
External links