A penumbral lunar eclipse occurred at the Moon’s descending node of orbit on Sunday, March 12, 1933, with an umbral magnitude of −0.4153. A lunar eclipse occurs when the Moon moves into the Earth's shadow, causing the Moon to be darkened. A penumbral lunar eclipse occurs when part or all of the Moon's near side passes into 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 about 3.5 days before perigee (on March 15, 1933, at 17:25 UTC), the Moon's apparent diameter was larger.
This eclipse was the second of four penumbral lunar eclipses in 1933, with the others occurring on February 10, August 5, and September 4.
Visibility The eclipse was completely visible over eastern North America, South America, and much of Africa and Europe, seen rising over western North America and the eastern Pacific Ocean and setting over east Africa and west, central, and south Asia.
Eclipse details Shown below is a table displaying details about this particular lunar eclipse. It describes various parameters pertaining to this eclipse.
+March 12, 1933 Lunar Eclipse Parameters Parameter Value Penumbral Magnitude 0.59243 Umbral Magnitude −0.41533 Gamma −1.23688 Sun Right Ascension 23h27m13.2s Sun Declination -03°32'18.1" Sun Semi-Diameter 16'05.6" Sun Equatorial Horizontal Parallax 08.8" Moon Right Ascension 11h24m53.7s Moon Declination +02°28'43.1" Moon Semi-Diameter 15'58.2" Moon Equatorial Horizontal Parallax 0°58'36.5" 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. The first and last eclipse in this sequence is separated by one synodic month.
+ Eclipse season of February–March 1933 February 10Descending node (full moon) February 24Ascending node (new moon) March 12Descending node (full moon) Penumbral lunar eclipseLunar Saros 103 Annular solar eclipseSolar Saros 129 Penumbral lunar eclipseLunar Saros 141
Related eclipses Eclipses in 1933 A penumbral lunar eclipse on February 10. An annular solar eclipse on February 24. A penumbral lunar eclipse on March 12. A penumbral lunar eclipse on August 5. An annular solar eclipse on August 21. A penumbral lunar eclipse on September 4.
Metonic Preceded by: Lunar eclipse of May 23, 1929 Followed by: Lunar eclipse of December 28, 1936
Tzolkinex Preceded by: Lunar eclipse of January 28, 1926 Followed by: Lunar eclipse of April 22, 1940
Half-Saros Preceded by: Solar eclipse of March 5, 1924 Followed by: Solar eclipse of March 16, 1942
Tritos Preceded by: Lunar eclipse of April 11, 1922 Followed by: Lunar eclipse of February 9, 1944
Lunar Saros 141 Preceded by: Lunar eclipse of March 1, 1915 Followed by: Lunar eclipse of March 23, 1951
Inex Preceded by: Lunar eclipse of March 31, 1904 Followed by: Lunar eclipse of February 19, 1962
Triad Preceded by: Lunar eclipse of May 11, 1846 Followed by: Lunar eclipse of January 10, 2020
Lunar eclipses of 1930–1933
Saros 141
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 total solar eclipses of Solar Saros 148. March 5, 1924March 16, 1942
See also List of lunar eclipses List of 20th-century lunar eclipses
Notes
External links