March 1933 lunar eclipse
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, 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.| 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 eclipse seasons occur each year, and each season lasts about 35 days and repeats just short of six months 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.| February 10 Descending node | February 24 Ascending node | March 12 Descending node |
| Penumbral lunar eclipse Lunar Saros 103 | Annular solar eclipse Solar Saros 129 | Penumbral lunar eclipse Lunar 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
Half-Saros cycle
A lunar eclipse will be preceded and followed by solar eclipses by 9 years and 5.5 days. This lunar eclipse is related to two total solar eclipses of Solar Saros 148.| March 5, 1924 | March 16, 1942 |