March 1914 lunar eclipse
| Partial eclipse | |||||||||||||
 The Moon's hourly motion shown right to left | |||||||||||||
| Date | March 12, 1914 | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Gamma | −0.5254 | ||||||||||||
| Magnitude | 0.9111 | ||||||||||||
| Saros cycle | 131 (28 of 72) | ||||||||||||
| Partiality | 181 minutes, 29 seconds | ||||||||||||
| Penumbral | 301 minutes, 28 seconds | ||||||||||||
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A partial lunar eclipse occurred at the Moon’s ascending node of orbit on Thursday, March 12, 1914,[1] with an umbral magnitude of 0.9111. A lunar eclipse occurs when the Moon moves into the Earth's shadow, causing the Moon to be darkened. A partial lunar eclipse occurs when one part of the Moon is in the Earth's umbra, while the other part is in 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 only about 18 hours before perigee (on March 12, 1914, at 22:20 UTC), the Moon's apparent diameter was larger.[2]
Visibility
[edit]The eclipse was completely visible over North America, South America, and west Africa, seen rising over northwestern North America and the central Pacific Ocean and setting over much of Africa, Europe, and west and central Asia.[3]
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Eclipse details
[edit]Shown below is a table displaying details about this particular solar eclipse. It describes various parameters pertaining to this eclipse.[4]
| Parameter | Value |
|---|---|
| Penumbral Magnitude | 1.87639 |
| Umbral Magnitude | 0.91108 |
| Gamma | −0.52543 |
| Sun Right Ascension | 23h26m01.9s |
| Sun Declination | -03°39'56.2" |
| Sun Semi-Diameter | 16'05.6" |
| Sun Equatorial Horizontal Parallax | 08.8" |
| Moon Right Ascension | 11h24m59.9s |
| Moon Declination | +03°11'46.2" |
| Moon Semi-Diameter | 16'40.3" |
| Moon Equatorial Horizontal Parallax | 1°01'11.2" |
| ΔT | 16.0 s |
Eclipse season
[edit]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.
| February 25 Ascending node (new moon) |
March 12 Descending node (full moon) |
|---|---|
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| Annular solar eclipse Solar Saros 119 |
Partial lunar eclipse Lunar Saros 131 |
Related eclipses
[edit]Eclipses in 1914
[edit]- An annular solar eclipse on February 25.
- A partial lunar eclipse on March 12.
- A total solar eclipse on August 21.
- A partial lunar eclipse on September 4.
Metonic
[edit]- Preceded by: Lunar eclipse of May 24, 1910
- Followed by: Lunar eclipse of December 28, 1917
Tzolkinex
[edit]- Preceded by: Lunar eclipse of January 29, 1907
- Followed by: Lunar eclipse of April 22, 1921
Half-Saros
[edit]- Preceded by: Solar eclipse of March 6, 1905
- Followed by: Solar eclipse of March 17, 1923
Tritos
[edit]- Preceded by: Lunar eclipse of April 12, 1903
- Followed by: Lunar eclipse of February 8, 1925
Lunar Saros 131
[edit]- Preceded by: Lunar eclipse of February 28, 1896
- Followed by: Lunar eclipse of March 22, 1932
Inex
[edit]- Preceded by: Lunar eclipse of March 30, 1885
- Followed by: Lunar eclipse of February 20, 1943
Triad
[edit]- Preceded by: Lunar eclipse of May 11, 1827
- Followed by: Lunar eclipse of January 9, 2001
Lunar eclipses of 1912–1915
[edit]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.[5]
The penumbral lunar eclipses on January 31, 1915 and July 26, 1915 occur in the next lunar year eclipse set.
| Lunar eclipse series sets from 1912 to 1915 | ||||||||
|---|---|---|---|---|---|---|---|---|
| Descending node | Ascending node | |||||||
| Saros | Date Viewing |
Type Chart |
Gamma | Saros | Date Viewing |
Type Chart |
Gamma | |
| 111 | 1912 Apr 01
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Partial
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0.9116 | 116 | 1912 Sep 26
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Partial
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−0.9320 | |
| 121 | 1913 Mar 22
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Total
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0.1671 | 126 | 1913 Sep 15
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Total
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−0.2109 | |
| 131 | 1914 Mar 12
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Partial
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−0.5254 | 136 | 1914 Sep 04
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Partial
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0.5301 | |
| 141 | 1915 Mar 01
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Penumbral
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−1.2573 | 146 | 1915 Aug 24
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Penumbral
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1.2435 | |
Saros 131
[edit]This eclipse is a part of Saros series 131, repeating every 18 years, 11 days, and containing 72 events. The series started with a penumbral lunar eclipse on May 10, 1427. It contains partial eclipses from July 25, 1553 through March 22, 1932; total eclipses from April 2, 1950 through September 3, 2202; and a second set of partial eclipses from September 13, 2220 through April 9, 2563. The series ends at member 72 as a penumbral eclipse on July 7, 2707.
The longest duration of totality will be produced by member 38 at 100 minutes, 36 seconds on June 28, 2094. All eclipses in this series occur at the Moon’s descending node of orbit.[6]
| Greatest | First | |||
|---|---|---|---|---|
 The greatest eclipse of the series will occur on 2094 Jun 28, lasting 100 minutes, 36 seconds.[7] |
Penumbral | Partial | Total | Central |
| 1427 May 10 |
1553 Jul 25 |
1950 Apr 02
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2022 May 16
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| Last | ||||
| Central | Total | Partial | Penumbral | |
| 2148 Jul 31 |
2202 Sep 03 |
2563 Apr 09 |
2707 Jul 07 | |
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 22–43 occur between 1801 and 2200: | |||||
|---|---|---|---|---|---|
| 22 | 23 | 24 | |||
| 1806 Jan 05 | 1824 Jan 16 | 1842 Jan 26 | |||
| 25 | 26 | 27 | |||
| 1860 Feb 07 | 1878 Feb 17 | 1896 Feb 28 | |||
| 28 | 29 | 30 | |||
| 1914 Mar 12 | 1932 Mar 22 | 1950 Apr 02 | |||
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| 31 | 32 | 33 | |||
| 1968 Apr 13 | 1986 Apr 24 | 2004 May 04 | |||
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| 34 | 35 | 36 | |||
| 2022 May 16 | 2040 May 26 | 2058 Jun 06 | |||
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| 37 | 38 | 39 | |||
| 2076 Jun 17 | 2094 Jun 28 | 2112 Jul 09 | |||
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| 40 | 41 | 42 | |||
| 2130 Jul 21 | 2148 Jul 31 | 2166 Aug 11 | |||
| 43 | |||||
| 2184 Aug 21 | |||||
Tritos series
[edit]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) |
1815 Dec 16 (Saros 122) |
1826 Nov 14 (Saros 123) |
1837 Oct 13 (Saros 124) |
1848 Sep 13 (Saros 125) | |||||
| 1859 Aug 13 (Saros 126) |
1870 Jul 12 (Saros 127) |
1881 Jun 12 (Saros 128) |
1892 May 11 (Saros 129) |
1903 Apr 12 (Saros 130) | |||||
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| 1914 Mar 12 (Saros 131) |
1925 Feb 08 (Saros 132) |
1936 Jan 08 (Saros 133) |
1946 Dec 08 (Saros 134) |
1957 Nov 07 (Saros 135) | |||||
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| 1968 Oct 06 (Saros 136) |
1979 Sep 06 (Saros 137) |
1990 Aug 06 (Saros 138) |
2001 Jul 05 (Saros 139) |
2012 Jun 04 (Saros 140) | |||||
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| 2023 May 05 (Saros 141) |
2034 Apr 03 (Saros 142) |
2045 Mar 03 (Saros 143) |
2056 Feb 01 (Saros 144) |
2066 Dec 31 (Saros 145) | |||||
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| 2077 Nov 29 (Saros 146) |
2088 Oct 30 (Saros 147) |
2099 Sep 29 (Saros 148) |
2110 Aug 29 (Saros 149) |
2121 Jul 30 (Saros 150) | |||||
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| 2132 Jun 28 (Saros 151) |
2143 May 28 (Saros 152) |
2154 Apr 28 (Saros 153) |
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| 2187 Jan 24 (Saros 156) | |||||||||
Half-Saros cycle
[edit]A lunar eclipse will be preceded and followed by solar eclipses by 9 years and 5.5 days (a half saros).[8] This lunar eclipse is related to two annular solar eclipses of Solar Saros 138.
| March 6, 1905 | March 17, 1923 |
|---|---|
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See also
[edit]Notes
[edit]- ^ "March 11–12, 1914 Partial Lunar Eclipse". timeanddate. Retrieved 16 December 2024.
- ^ "Moon Distances for London, United Kingdom, England". timeanddate. Retrieved 16 December 2024.
- ^ "Partial Lunar Eclipse of 1914 Mar 12" (PDF). NASA. Retrieved 16 December 2024.
- ^ "Partial Lunar Eclipse of 1914 Mar 12". EclipseWise.com. Retrieved 16 December 2024.
- ^ van Gent, R.H. "Solar- and Lunar-Eclipse Predictions from Antiquity to the Present". A Catalogue of Eclipse Cycles. Utrecht University. Retrieved 6 October 2018.
- ^ "NASA - Catalog of Lunar Eclipses of Saros 131". eclipse.gsfc.nasa.gov.
- ^ Listing of Eclipses of series 131
- ^ Mathematical Astronomy Morsels, Jean Meeus, p.110, Chapter 18, The half-saros
External links
[edit]- 1914 Mar 12 chart Eclipse Predictions by Fred Espenak, NASA/GSFC
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