Solar eclipse of January 22, 1879

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Template:Short description Script error: No such module "Solar eclipse". An annular solar eclipse occurred at the Moon's ascending node of orbit on Wednesday January 22, 1879, with a magnitude of 0.9700. 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. An annular solar eclipse occurs when the Moon's apparent diameter is smaller than the Sun's, blocking most of the Sun's light and causing the Sun to look like an annulus (ring). An annular eclipse appears as a partial eclipse over a region of the Earth thousands of kilometres wide. The Moon's apparent diameter was near the average diameter because it occurred 8.1 days after perigee (on January 14, 1879, at 16:55 UTC) and 6.7 days before apogee (on January 29, 1879, at 5:10 UTC).[1]

The path of annularity was visible from parts of modern-day Argentina, Uruguay, southern Brazil, Namibia, Botswana, Zambia, the southernmost Democratic Republic of the Congo, northern Malawi, and Tanzania. A partial solar eclipse was also visible for parts of South America, Antarctica, Africa, and the Middle East.

Observations

On 22 January 1879, three battles were fought in the Anglo-Zulu War. During the Battle of Isandlwana, in which 1,300 British and over 1,000 Zulus were killed, at 2:29 PM there was a solar eclipse, and according to legend, this motivated the Zulus, who claimed that it was a sign that they would prevail.[2][3] The Zulu name for the battle translates as "the day of the dead moon".[4]

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.[5]

January 22, 1879 Solar Eclipse Times
Event Time (UTC)
First Penumbral External Contact 1879 January 22 at 08:59:48.6 UTC
First Umbral External Contact 1879 January 22 at 10:01:38.5 UTC
First Central Line 1879 January 22 at 10:03:06.2 UTC
First Umbral Internal Contact 1879 January 22 at 10:04:33.9 UTC
First Penumbral Internal Contact 1879 January 22 at 11:08:22.0 UTC
Greatest Duration 1879 January 22 at 11:31:00.1 UTC
Equatorial Conjunction 1879 January 22 at 11:46:12.9 UTC
Ecliptic Conjunction 1879 January 22 at 11:51:05.4 UTC
Greatest Eclipse 1879 January 22 at 11:53:08.0 UTC
Last Penumbral Internal Contact 1879 January 22 at 12:38:03.0 UTC
Last Umbral Internal Contact 1879 January 22 at 13:41:44.5 UTC
Last Central Line 1879 January 22 at 13:43:15.1 UTC
Last Umbral External Contact 1879 January 22 at 13:44:45.8 UTC
Last Penumbral External Contact 1879 January 22 at 14:46:36.9 UTC
January 22, 1879 Solar Eclipse Parameters
Parameter Value
Eclipse Magnitude 0.97002
Eclipse Obscuration 0.94094
Gamma −0.18240
Sun Right Ascension 20h17m38.7s
Sun Declination -19°41'46.4"
Sun Semi-Diameter 16'14.9"
Sun Equatorial Horizontal Parallax 08.9"
Moon Right Ascension 20h17m52.8s
Moon Declination -19°51'35.0"
Moon Semi-Diameter 15'31.0"
Moon Equatorial Horizontal Parallax 0°56'56.8"
ΔT -4.9 s

Eclipse season

Script error: No such module "Labelled list hatnote". 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 January–February 1879
January 8
Descending node (full moon)
January 22
Ascending node (new moon)
February 7
Descending node (full moon)
File:SE1879Jan22A.gif
Penumbral lunar eclipse
Lunar Saros 103
Annular solar eclipse
Solar Saros 129
Penumbral lunar eclipse
Lunar Saros 141

Related eclipses

Eclipses in 1879

Metonic

Tzolkinex

Half-Saros

Tritos

Solar Saros 129

Inex

Triad

Solar eclipses of 1877–1880

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.[6]

The partial solar eclipses on March 15, 1877 and September 7, 1877 occur in the previous lunar year eclipse set, and the partial solar eclipse on December 2, 1880 occurs in the next lunar year eclipse set.

Solar eclipse series sets from 1877 to 1880
Descending node   Ascending node
Saros Map Gamma Saros Map Gamma
114 August 9, 1877
File:SE1877Aug09P.gif
Partial
1.3277 119 February 2, 1878
File:SE1878Feb02A.gif
Annular
−0.9071
124 July 29, 1878
File:SE1878Jul29T.png
Total
0.6232 129 January 22, 1879
File:SE1879Jan22A.gif
Annular
−0.1824
134 July 19, 1879
File:SE1879Jul19A.png
Annular
−0.1439 139 January 11, 1880
File:SE1880Jan11T.gif
Total
0.6136
144 July 7, 1880
File:SE1880Jul07A.gif
Annular
−0.9406 146 December 31, 1880
File:SE1880Dec31P.gif
Partial
1.1591

Saros 129

This eclipse is a part of Saros series 129, repeating every 18 years, 11 days, and containing 80 events. The series started with a partial solar eclipse on October 3, 1103. It contains annular eclipses from May 6, 1464 through March 18, 1969; hybrid eclipses from March 29, 1987 through April 20, 2023; and total eclipses from April 30, 2041 through July 26, 2185. The series ends at member 80 as a partial eclipse on February 21, 2528. 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 annularity was produced by member 34 at 5 minutes, 10 seconds on October 4, 1698, and the longest duration of totality will be produced by member 58 at 3 minutes, 43 seconds on June 25, 2131. All eclipses in this series occur at the Moon’s ascending node of orbit.[7]

Series members 40–61 occur between 1801 and 2200:
40 41 42
File:SE1806Dec10A.gif
December 10, 1806
File:SE1824Dec20Am.gif
December 20, 1824
File:SE1842Dec31A.gif
December 31, 1842
43 44 45
File:SE1861Jan11A.gif
January 11, 1861
File:SE1879Jan22A.gif
January 22, 1879
File:SE1897Feb01A.gif
February 1, 1897
46 47 48
File:SE1915Feb14A.png
February 14, 1915
File:SE1933Feb24A.png
February 24, 1933
File:SE1951Mar07A.png
March 7, 1951
49 50 51
File:SE1969Mar18A.png
March 18, 1969
File:SE1987Mar29H.png
March 29, 1987
File:SE2005Apr08H.png
April 8, 2005
52 53 54
File:SE2023Apr20H.png
April 20, 2023
File:SE2041Apr30T.png
April 30, 2041
File:SE2059May11T.png
May 11, 2059
55 56 57
File:SE2077May22T.png
May 22, 2077
File:SE2095Jun02T.png
June 2, 2095
File:Saros129 57van80 SE2113Jun13T.jpg
June 13, 2113
58 59 60
File:Saros129 58van80 SE2131Jun25T.jpg
June 25, 2131
File:Saros129 59van80 SE2149Jul05T.jpg
July 5, 2149
File:Saros129 60van80 SE2167Jul16T.jpg
July 16, 2167
61
File:Saros129 61van80 SE2185Jul26T.jpg
July 26, 2185

Metonic series

Template:Solar Metonic series 1837–1928

Tritos series

Template:Solar Tritos series 2010 January 15

Inex series

Template:Solar Inex series 2023 October 14

Notes

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References

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