# 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 (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 solar 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 10 Descending node (full moon) | February 24 Ascending node (new moon) | March 12 Descending node (full moon) |
| 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

### 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.
The penumbral lunar eclipses on February 10, 1933 and August 5, 1933 occur in the next lunar year eclipse set.
Lunar eclipse series sets from 1930 to 1933 :
| Descending node | Descending node | Descending node | Descending node | Ascending node | Ascending node | Ascending node | Ascending node |
| Saros | Date Viewing | Type Chart | Gamma | Saros | Date Viewing | Type Chart | Gamma |
| 111 | 1930 Apr 13 | Partial | 0.9545 | 116 | 1930 Oct 07 | Partial | −0.9812 |
| 121 | 1931 Apr 02 | Total | 0.2043 | 126 | 1931 Sep 26 | Total | −0.2698 |
| 131 | 1932 Mar 22 | Partial | −0.4956 | 136 | 1932 Sep 14 | Partial | 0.4664 |
| 141 | 1933 Mar 12 | Penumbral | −1.2369 | 146 | 1933 Sep 04 | Penumbral | 1.1776 |

### Saros 141

This eclipse is a part of Saros series 141, repeating every 18 years, 11 days, and containing 72 events. The series started with a penumbral lunar eclipse on August 25, 1608. It contains partial eclipses from May 16, 2041 through July 20, 2149; total eclipses from August 1, 2167 through May 1, 2618; and a second set of partial eclipses from May 12, 2636 through July 16, 2744. The series ends at member 72 as a penumbral eclipse on October 11, 2888.
The longest duration of totality will be produced by member 39 at 104 minutes, 36 seconds on October 16, 2293. All eclipses in this series occur at the Moon’s descending node of orbit.
| Greatest | First | First | First | First |
| The greatest eclipse of the series will occur on 2293 Oct 16, lasting 104 minutes, 36 seconds. | Penumbral | Partial | Total | Central |
| The greatest eclipse of the series will occur on 2293 Oct 16, lasting 104 minutes, 36 seconds. | 1608 Aug 25 | 2041 May 16 | 2167 Aug 01 | 2221 Sep 02 |
| Last ||||
| The greatest eclipse of the series will occur on 2293 Oct 16, lasting 104 minutes, 36 seconds. | Central | Total | Partial | Penumbral |
| The greatest eclipse of the series will occur on 2293 Oct 16, lasting 104 minutes, 36 seconds. | 2546 Mar 18 | 2618 May 01 | 2744 Jul 16 | 2888 Oct 11 |
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.
Series members 12–33 occur between 1801 and 2200: :
| 12 | 12 | 13 | 13 | 14 | 14 |
| 1806 Dec 25 | 1806 Dec 25 | 1825 Jan 04 | 1825 Jan 04 | 1843 Jan 16 | 1843 Jan 16 |
| 15 | 15 | 16 | 16 | 17 | 17 |
| 1861 Jan 26 | 1861 Jan 26 | 1879 Feb 07 | 1879 Feb 07 | 1897 Feb 17 | 1897 Feb 17 |
| 18 | 18 | 19 | 19 | 20 | 20 |
| 1915 Mar 01 | 1915 Mar 01 | 1933 Mar 12 | 1933 Mar 12 | 1951 Mar 23 | 1951 Mar 23 |
| 21 | 21 | 22 | 22 | 23 | 23 |
| 1969 Apr 02 | 1969 Apr 02 | 1987 Apr 14 | 1987 Apr 14 | 2005 Apr 24 | 2005 Apr 24 |
| 24 | 24 | 25 | 25 | 26 | 26 |
| 2023 May 05 | 2023 May 05 | 2041 May 16 | 2041 May 16 | 2059 May 27 | 2059 May 27 |
| 27 | 27 | 28 | 28 | 29 | 29 |
| 2077 Jun 06 | 2077 Jun 06 | 2095 Jun 17 | 2095 Jun 17 | 2113 Jun 29 | 2113 Jun 29 |
| 30 | 30 | 31 | 31 | 32 | 32 |
| 2131 Jul 10 | 2131 Jul 10 | 2149 Jul 20 | 2149 Jul 20 | 2167 Aug 01 | 2167 Aug 01 |
| 33 ||
| 2185 Aug 11 ||

### 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.
Series members between 1801 and 2096 :
| 1802 Mar 19 (Saros 129) | 1802 Mar 19 (Saros 129) | 1813 Feb 15 (Saros 130) | 1813 Feb 15 (Saros 130) | 1824 Jan 16 (Saros 131) | 1824 Jan 16 (Saros 131) | 1834 Dec 16 (Saros 132) | 1834 Dec 16 (Saros 132) | 1845 Nov 14 (Saros 133) | 1845 Nov 14 (Saros 133) |
| 1856 Oct 13 (Saros 134) | 1856 Oct 13 (Saros 134) | 1867 Sep 14 (Saros 135) | 1867 Sep 14 (Saros 135) | 1878 Aug 13 (Saros 136) | 1878 Aug 13 (Saros 136) | 1889 Jul 12 (Saros 137) | 1889 Jul 12 (Saros 137) | 1900 Jun 13 (Saros 138) | 1900 Jun 13 (Saros 138) |
| 1911 May 13 (Saros 139) | 1911 May 13 (Saros 139) | 1922 Apr 11 (Saros 140) | 1922 Apr 11 (Saros 140) | 1933 Mar 12 (Saros 141) | 1933 Mar 12 (Saros 141) | 1944 Feb 09 (Saros 142) | 1944 Feb 09 (Saros 142) | 1955 Jan 08 (Saros 143) | 1955 Jan 08 (Saros 143) |
| 1965 Dec 08 (Saros 144) | 1965 Dec 08 (Saros 144) | 1976 Nov 06 (Saros 145) | 1976 Nov 06 (Saros 145) | 1987 Oct 07 (Saros 146) | 1987 Oct 07 (Saros 146) | 1998 Sep 06 (Saros 147) | 1998 Sep 06 (Saros 147) | 2009 Aug 06 (Saros 148) | 2009 Aug 06 (Saros 148) |
| 2020 Jul 05 (Saros 149) | 2020 Jul 05 (Saros 149) | 2031 Jun 05 (Saros 150) | 2031 Jun 05 (Saros 150) | | | | | | |
| | | | | 2096 Nov 29 (Saros 156) | 2096 Nov 29 (Saros 156) |

### 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.
Series members between 1801 and 2200 :
| 1817 May 30 (Saros 137) | 1817 May 30 (Saros 137) | 1846 May 11 (Saros 138) | 1846 May 11 (Saros 138) | 1875 Apr 20 (Saros 139) | 1875 Apr 20 (Saros 139) |
| 1904 Mar 31 (Saros 140) | 1904 Mar 31 (Saros 140) | 1933 Mar 12 (Saros 141) | 1933 Mar 12 (Saros 141) | 1962 Feb 19 (Saros 142) | 1962 Feb 19 (Saros 142) |
| 1991 Jan 30 (Saros 143) | 1991 Jan 30 (Saros 143) | 2020 Jan 10 (Saros 144) | 2020 Jan 10 (Saros 144) | 2048 Dec 20 (Saros 145) | 2048 Dec 20 (Saros 145) |
| 2077 Nov 29 (Saros 146) | 2077 Nov 29 (Saros 146) | 2106 Nov 11 (Saros 147) | 2106 Nov 11 (Saros 147) | 2135 Oct 22 (Saros 148) | 2135 Oct 22 (Saros 148) |
| 2164 Sep 30 (Saros 149) | 2164 Sep 30 (Saros 149) | 2193 Sep 11 (Saros 150) | 2193 Sep 11 (Saros 150) |

### 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 148.
| March 5, 1924 | March 16, 1942 |