# Solar eclipse of March 25, 1857

A total solar eclipse occurred at the Moon's ascending node of orbit between Wednesday, March 25 and Thursday, March 26, 1857, with a magnitude of 1.0534. A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally or partly obscuring the image of the Sun for a viewer on Earth. A total solar eclipse occurs when the Moon's apparent diameter is larger than the Sun's, blocking all direct sunlight, turning day into darkness. Totality occurs in a narrow path across Earth's surface, with the partial solar eclipse visible over a surrounding region thousands of kilometres wide. Occurring about 1.1 days before perigee (on March 26, 1857, at 23:55 UTC), the Moon's apparent diameter was larger.
The path of totality was visible from parts of modern-day southeastern Australia, Niue, the Cook Islands, Kiribati, Mexico. A partial solar eclipse was also visible for parts of Australia, Oceania, Hawaii, western North America, and Central America.

## Eclipse details

Shown below are two tables displaying details about this particular solar eclipse. The first table outlines times at which the moon's penumbra or umbra attains the specific parameter, and the second table describes various other parameters pertaining to this eclipse.
March 25, 1857 Solar Eclipse Times :
| Event | Time (UTC) |
| First Penumbral External Contact | 1857 March 25 at 19:50:30.7 UTC |
| First Umbral External Contact | 1857 March 25 at 20:45:26.6 UTC |
| First Central Line | 1857 March 25 at 20:46:23.7 UTC |
| First Umbral Internal Contact | 1857 March 25 at 20:47:20.8 UTC |
| First Penumbral Internal Contact | 1857 March 25 at 21:42:38.0 UTC |
| Equatorial Conjunction | 1857 March 25 at 22:24:29.2 UTC |
| Ecliptic Conjunction | 1857 March 25 at 22:28:42.5 UTC |
| Greatest Eclipse | 1857 March 25 at 22:29:37.6 UTC |
| Greatest Duration | 1857 March 25 at 22:31:46.5 UTC |
| Last Penumbral Internal Contact | 1857 March 25 at 23:16:44.6 UTC |
| Last Umbral Internal Contact | 1857 March 26 at 00:11:55.9 UTC |
| Last Central Line | 1857 March 26 at 00:12:54.3 UTC |
| Last Umbral External Contact | 1857 March 26 at 00:13:52.8 UTC |
| Last Penumbral External Contact | 1857 March 26 at 01:08:43.7 UTC |
March 25, 1857 Solar Eclipse Parameters :
| Parameter | Value |
| Eclipse Magnitude | 1.05342 |
| Eclipse Obscuration | 1.10969 |
| Gamma | −0.08923 |
| Sun Right Ascension | 00h19m12.6s |
| Sun Declination | +02°04'51.1" |
| Sun Semi-Diameter | 16'01.4" |
| Sun Equatorial Horizontal Parallax | 08.8" |
| Moon Right Ascension | 00h19m23.1s |
| Moon Declination | +02°00'06.7" |
| Moon Semi-Diameter | 16'35.7" |
| Moon Equatorial Horizontal Parallax | 1°00'54.1" |
| ΔT | 7.0 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 March–April 1857 :
| March 25 Ascending node (new moon) | April 9 Descending node (full moon) |
| Total solar eclipse Solar Saros 127 | Penumbral lunar eclipse Lunar Saros 139 |

## Related eclipses
### Eclipses in 1857

* An total solar eclipse on March 25.
* A penumbral lunar eclipse on April 9.
* A penumbral lunar eclipse on September 4.
* An annular solar eclipse on September 18.
* A penumbral lunar eclipse on October 3.

### Metonic

* Preceded by: Solar eclipse of November 20, 1854
* Followed by: Solar eclipse of June 27, 1862

### Tzolkinex

* Preceded by: Solar eclipse of February 12, 1850
* Followed by: Solar eclipse of May 6, 1864

### Half-Saros

* Preceded by: Lunar eclipse of March 19, 1848
* Followed by: Lunar eclipse of March 31, 1866

### Tritos

* Preceded by: Solar eclipse of April 25, 1846
* Followed by: Solar eclipse of February 23, 1868

### Solar Saros 127

* Preceded by: Solar eclipse of March 15, 1839
* Followed by: Solar eclipse of April 6, 1875

### Inex

* Preceded by: Solar eclipse of April 14, 1828
* Followed by: Solar eclipse of March 5, 1886

### Triad

* Preceded by: Solar eclipse of May 25, 1770
* Followed by: Solar eclipse of January 25, 1944

### Solar eclipses of 1856–1859

This eclipse is a member of a semester series. An eclipse in a semester series of solar eclipses repeats approximately every 177 days and 4 hours (a semester) at alternating nodes of the Moon's orbit.
The partial solar eclipses on February 3, 1859 and July 29, 1859 occur in the next lunar year eclipse set.
Solar eclipse series sets from 1856 to 1859 :
| Ascending node | Ascending node | Ascending node | Descending node | Descending node | Descending node |
| Saros | Map | Gamma | Saros | Map | Gamma |
| 117 | April 5, 1856 Total | −0.7906 | 122 | September 29, 1856 Annular | 0.9420 |
| 127 | March 25, 1857 Total | −0.0892 | 132 | September 18, 1857 Annular | 0.1912 |
| 137 | March 15, 1858 Annular | 0.6461 | 142 | September 7, 1858 Total | −0.5609 |
| 147 | March 4, 1859 Partial | 1.4192 | 152 | August 28, 1859 Partial | −1.2569 |

### Saros 127

This eclipse is a part of Saros series 127, repeating every 18 years, 11 days, and containing 82 events. The series started with a partial solar eclipse on October 10, 991 AD. It contains total eclipses from May 14, 1352 through August 15, 2091. There are no annular or hybrid eclipses in this set. The series ends at member 82 as a partial eclipse on March 21, 2452. Its 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.
The longest duration of totality was produced by member 31 at 5 minutes, 40 seconds on August 30, 1532. All eclipses in this series occur at the Moon’s ascending node of orbit.
Series members 46–68 occur between 1801 and 2200: :
| 46 | 47 | 48 |
| February 21, 1803 | March 4, 1821 | March 15, 1839 |
| 49 | 50 | 51 |
| March 25, 1857 | April 6, 1875 | April 16, 1893 |
| 52 | 53 | 54 |
| April 28, 1911 | May 9, 1929 | May 20, 1947 |
| 55 | 56 | 57 |
| May 30, 1965 | June 11, 1983 | June 21, 2001 |
| 58 | 59 | 60 |
| July 2, 2019 | July 13, 2037 | July 24, 2055 |
| 61 | 62 | 63 |
| August 3, 2073 | August 15, 2091 | August 26, 2109 |
| 64 | 65 | 66 |
| September 6, 2127 | September 16, 2145 | September 28, 2163 |
| 67 | 68 |
| October 8, 2181 | October 19, 2199 |

### Metonic series

The metonic series repeats eclipses every 19 years (6939.69 days), lasting about 5 cycles. Eclipses occur in nearly the same calendar date. In addition, the octon subseries repeats 1/5 of that or every 3.8 years (1387.94 days). All eclipses in this table occur at the Moon's ascending node.
24 eclipse events between March 25, 1819 and August 20, 1906 :
| March 25–26 | January 11–12 | October 30–31 | August 18–20 | June 6–7 |
| 107 | 109 | 111 | 113 | 115 |
| March 25, 1819 | January 12, 1823 | October 31, 1826 | August 18, 1830 | June 7, 1834 |
| 117 | 119 | 121 | 123 | 125 |
| March 25, 1838 | January 11, 1842 | October 30, 1845 | August 18, 1849 | June 6, 1853 |
| 127 | 129 | 131 | 133 | 135 |
| March 25, 1857 | January 11, 1861 | October 30, 1864 | August 18, 1868 | June 6, 1872 |
| 137 | 139 | 141 | 143 | 145 |
| March 25, 1876 | January 11, 1880 | October 30, 1883 | August 19, 1887 | June 6, 1891 |
| 147 | 149 | 151 | 153 |
| March 26, 1895 | January 11, 1899 | October 31, 1902 | August 20, 1906 |

### 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 2200 :
| August 28, 1802 (Saros 122) | July 27, 1813 (Saros 123) | June 26, 1824 (Saros 124) | May 27, 1835 (Saros 125) | April 25, 1846 (Saros 126) |
| March 25, 1857 (Saros 127) | February 23, 1868 (Saros 128) | January 22, 1879 (Saros 129) | December 22, 1889 (Saros 130) | November 22, 1900 (Saros 131) |
| October 22, 1911 (Saros 132) | September 21, 1922 (Saros 133) | August 21, 1933 (Saros 134) | July 20, 1944 (Saros 135) | June 20, 1955 (Saros 136) |
| May 20, 1966 (Saros 137) | April 18, 1977 (Saros 138) | March 18, 1988 (Saros 139) | February 16, 1999 (Saros 140) | January 15, 2010 (Saros 141) |
| December 14, 2020 (Saros 142) | November 14, 2031 (Saros 143) | October 14, 2042 (Saros 144) | September 12, 2053 (Saros 145) | August 12, 2064 (Saros 146) |
| July 13, 2075 (Saros 147) | June 11, 2086 (Saros 148) | May 11, 2097 (Saros 149) | April 11, 2108 (Saros 150) | March 11, 2119 (Saros 151) |
| February 8, 2130 (Saros 152) | January 8, 2141 (Saros 153) | December 8, 2151 (Saros 154) | November 7, 2162 (Saros 155) | October 7, 2173 (Saros 156) |
| September 4, 2184 (Saros 157) | August 5, 2195 (Saros 158) |

### 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 :
| April 14, 1828 (Saros 126) | March 25, 1857 (Saros 127) | March 5, 1886 (Saros 128) |
| February 14, 1915 (Saros 129) | January 25, 1944 (Saros 130) | January 4, 1973 (Saros 131) |
| December 14, 2001 (Saros 132) | November 25, 2030 (Saros 133) | November 5, 2059 (Saros 134) |
| October 14, 2088 (Saros 135) | September 26, 2117 (Saros 136) | September 6, 2146 (Saros 137) |
| August 16, 2175 (Saros 138) | | |