# November 1957 lunar eclipse

A total lunar eclipse occurred at the Moon’s descending node of orbit on Thursday, November 7, 1957, with an umbral magnitude of 1.0305. A lunar eclipse occurs when the Moon moves into the Earth's shadow, causing the Moon to be darkened. A total lunar eclipse occurs when the Moon's near side entirely passes into the Earth's umbral shadow. 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. A total lunar eclipse can last up to nearly two hours, while a total solar eclipse lasts only a few minutes at any given place, because the Moon's shadow is smaller. Occurring about 5.1 days after apogee (on November 2, 1957, at 11:30 UTC), the Moon's apparent diameter was smaller.
This lunar eclipse was the last of an almost tetrad, with the others being on May 24, 1956 (partial); November 18, 1956 (total); and May 13, 1957 (total).

## Visibility

The eclipse was completely visible over the eastern half of Asia, Australia, and Alaska, seen rising over the western half of Asia, Europe, and much of central and east Africa and setting over much of North America.

## Eclipse details

Shown below is a table displaying details about this particular solar eclipse. It describes various parameters pertaining to this eclipse.
November 7, 1957 Lunar Eclipse Parameters :
| Parameter | Value |
| Penumbral Magnitude | 2.09628 |
| Umbral Magnitude | 1.03050 |
| Gamma | −0.43321 |
| Sun Right Ascension | 14h49m49.6s |
| Sun Declination | -16°18'55.4" |
| Sun Semi-Diameter | 16'08.6" |
| Sun Equatorial Horizontal Parallax | 08.9" |
| Moon Right Ascension | 02h50m09.3s |
| Moon Declination | +15°55'18.7" |
| Moon Semi-Diameter | 15'08.8" |
| Moon Equatorial Horizontal Parallax | 0°55'35.5" |
| ΔT | 32.2 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 October–November 1957 :
| October 23 Ascending node (new moon) | November 7 Descending node (full moon) |
| Total solar eclipse Solar Saros 123 | Total lunar eclipse Lunar Saros 135 |

## Related eclipses
### Eclipses in 1957

* An annular solar eclipse on April 30.
* A total lunar eclipse on May 13.
* A total solar eclipse on October 23.
* A total lunar eclipse on November 7.

### Metonic

* Preceded by: Lunar eclipse of January 19, 1954
* Followed by: Lunar eclipse of August 26, 1961

### Tzolkinex

* Preceded by: Lunar eclipse of September 26, 1950
* Followed by: Lunar eclipse of December 19, 1964

### Half-Saros

* Preceded by: Solar eclipse of November 1, 1948
* Followed by: Solar eclipse of November 12, 1966

### Tritos

* Preceded by: Lunar eclipse of December 8, 1946
* Followed by: Lunar eclipse of October 6, 1968

### Lunar Saros 135

* Preceded by: Lunar eclipse of October 28, 1939
* Followed by: Lunar eclipse of November 18, 1975

### Inex

* Preceded by: Lunar eclipse of November 27, 1928
* Followed by: Lunar eclipse of October 17, 1986

### Triad

* Preceded by: Lunar eclipse of January 6, 1871
* Followed by: Lunar eclipse of September 7, 2044

### Lunar eclipses of 1955–1958

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 eclipse on January 8, 1955 occurs in the previous lunar year eclipse set, and the penumbral lunar eclipse on April 4, 1958 occurs in the next lunar year eclipse set.
Lunar eclipse series sets from 1955 to 1958 :
| Ascending node | Ascending node | Ascending node | Ascending node | Descending node | Descending node | Descending node | Descending node |
| Saros | Date Viewing | Type Chart | Gamma | Saros | Date Viewing | Type Chart | Gamma |
| 110 | 1955 Jun 05 | Penumbral | −1.2384 | 115 | 1955 Nov 29 | Partial | 0.9551 |
| 120 | 1956 May 24 | Partial | −0.4726 | 125 | 1956 Nov 18 | Total | 0.2917 |
| 130 | 1957 May 13 | Total | 0.3046 | 135 | 1957 Nov 07 | Total | −0.4332 |
| 140 | 1958 May 03 | Partial | 1.0188 | 145 | 1958 Oct 27 | Penumbral | −1.1571 |

### Saros 135

This eclipse is a part of Saros series 135, repeating every 18 years, 11 days, and containing 71 events. The series started with a penumbral lunar eclipse on April 13, 1615. It contains partial eclipses from July 20, 1777 through October 28, 1939; total eclipses from November 7, 1957 through July 6, 2354; and a second set of partial eclipses from July 16, 2372 through September 19, 2480. The series ends at member 71 as a penumbral eclipse on May 18, 2877.
The longest duration of totality will be produced by member 37 at 106 minutes, 13 seconds on May 12, 2264. 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 2264 May 12, lasting 106 minutes, 13 seconds. | Penumbral | Partial | Total | Central |
| The greatest eclipse of the series will occur on 2264 May 12, lasting 106 minutes, 13 seconds. | 1615 Apr 13 | 1777 Jul 20 | 1957 Nov 07 | 2174 Mar 18 |
| Last ||||
| The greatest eclipse of the series will occur on 2264 May 12, lasting 106 minutes, 13 seconds. | Central | Total | Partial | Penumbral |
| The greatest eclipse of the series will occur on 2264 May 12, lasting 106 minutes, 13 seconds. | 2318 Jun 14 | 2354 Jul 06 | 2480 Sep 19 | 2877 May 18 |
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 |
| 1813 Aug 12 | 1813 Aug 12 | 1831 Aug 23 | 1831 Aug 23 | 1849 Sep 02 | 1849 Sep 02 |
| 15 | 15 | 16 | 16 | 17 | 17 |
| 1867 Sep 14 | 1867 Sep 14 | 1885 Sep 24 | 1885 Sep 24 | 1903 Oct 06 | 1903 Oct 06 |
| 18 | 18 | 19 | 19 | 20 | 20 |
| 1921 Oct 16 | 1921 Oct 16 | 1939 Oct 28 | 1939 Oct 28 | 1957 Nov 07 | 1957 Nov 07 |
| 21 | 21 | 22 | 22 | 23 | 23 |
| 1975 Nov 18 | 1975 Nov 18 | 1993 Nov 29 | 1993 Nov 29 | 2011 Dec 10 | 2011 Dec 10 |
| 24 | 24 | 25 | 25 | 26 | 26 |
| 2029 Dec 20 | 2029 Dec 20 | 2048 Jan 01 | 2048 Jan 01 | 2066 Jan 11 | 2066 Jan 11 |
| 27 | 27 | 28 | 28 | 29 | 29 |
| 2084 Jan 22 | 2084 Jan 22 | 2102 Feb 03 | 2102 Feb 03 | 2120 Feb 14 | 2120 Feb 14 |
| 30 | 30 | 31 | 31 | 32 | 32 |
| 2138 Feb 24 | 2138 Feb 24 | 2156 Mar 07 | 2156 Mar 07 | 2174 Mar 18 | 2174 Mar 18 |
| 33 ||
| 2192 Mar 28 ||

### 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 2187 :
| 1805 Jan 15 (Saros 121) | 1805 Jan 15 (Saros 121) | 1815 Dec 16 (Saros 122) | 1815 Dec 16 (Saros 122) | 1826 Nov 14 (Saros 123) | 1826 Nov 14 (Saros 123) | 1837 Oct 13 (Saros 124) | 1837 Oct 13 (Saros 124) | 1848 Sep 13 (Saros 125) | 1848 Sep 13 (Saros 125) |
| 1859 Aug 13 (Saros 126) | 1859 Aug 13 (Saros 126) | 1870 Jul 12 (Saros 127) | 1870 Jul 12 (Saros 127) | 1881 Jun 12 (Saros 128) | 1881 Jun 12 (Saros 128) | 1892 May 11 (Saros 129) | 1892 May 11 (Saros 129) | 1903 Apr 12 (Saros 130) | 1903 Apr 12 (Saros 130) |
| 1914 Mar 12 (Saros 131) | 1914 Mar 12 (Saros 131) | 1925 Feb 08 (Saros 132) | 1925 Feb 08 (Saros 132) | 1936 Jan 08 (Saros 133) | 1936 Jan 08 (Saros 133) | 1946 Dec 08 (Saros 134) | 1946 Dec 08 (Saros 134) | 1957 Nov 07 (Saros 135) | 1957 Nov 07 (Saros 135) |
| 1968 Oct 06 (Saros 136) | 1968 Oct 06 (Saros 136) | 1979 Sep 06 (Saros 137) | 1979 Sep 06 (Saros 137) | 1990 Aug 06 (Saros 138) | 1990 Aug 06 (Saros 138) | 2001 Jul 05 (Saros 139) | 2001 Jul 05 (Saros 139) | 2012 Jun 04 (Saros 140) | 2012 Jun 04 (Saros 140) |
| 2023 May 05 (Saros 141) | 2023 May 05 (Saros 141) | 2034 Apr 03 (Saros 142) | 2034 Apr 03 (Saros 142) | 2045 Mar 03 (Saros 143) | 2045 Mar 03 (Saros 143) | 2056 Feb 01 (Saros 144) | 2056 Feb 01 (Saros 144) | 2066 Dec 31 (Saros 145) | 2066 Dec 31 (Saros 145) |
| 2077 Nov 29 (Saros 146) | 2077 Nov 29 (Saros 146) | 2088 Oct 30 (Saros 147) | 2088 Oct 30 (Saros 147) | 2099 Sep 29 (Saros 148) | 2099 Sep 29 (Saros 148) | 2110 Aug 29 (Saros 149) | 2110 Aug 29 (Saros 149) | 2121 Jul 30 (Saros 150) | 2121 Jul 30 (Saros 150) |
| 2132 Jun 28 (Saros 151) | 2132 Jun 28 (Saros 151) | 2143 May 28 (Saros 152) | 2143 May 28 (Saros 152) | 2154 Apr 28 (Saros 153) | 2154 Apr 28 (Saros 153) | | | | |
| 2187 Jan 24 (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 :
| 1813 Feb 15 (Saros 130) | 1813 Feb 15 (Saros 130) | 1842 Jan 26 (Saros 131) | 1842 Jan 26 (Saros 131) | 1871 Jan 06 (Saros 132) | 1871 Jan 06 (Saros 132) |
| 1899 Dec 17 (Saros 133) | 1899 Dec 17 (Saros 133) | 1928 Nov 27 (Saros 134) | 1928 Nov 27 (Saros 134) | 1957 Nov 07 (Saros 135) | 1957 Nov 07 (Saros 135) |
| 1986 Oct 17 (Saros 136) | 1986 Oct 17 (Saros 136) | 2015 Sep 28 (Saros 137) | 2015 Sep 28 (Saros 137) | 2044 Sep 07 (Saros 138) | 2044 Sep 07 (Saros 138) |
| 2073 Aug 17 (Saros 139) | 2073 Aug 17 (Saros 139) | 2102 Jul 30 (Saros 140) | 2102 Jul 30 (Saros 140) | 2131 Jul 10 (Saros 141) | 2131 Jul 10 (Saros 141) |
| 2160 Jun 18 (Saros 142) | 2160 Jun 18 (Saros 142) | 2189 May 29 (Saros 143) | 2189 May 29 (Saros 143) |

### 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 142.
| November 1, 1948 | November 12, 1966 |