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Solar eclipse of March 6, 1905

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Solar eclipse of March 6, 1905
Map
Type of eclipse
NatureAnnular
Gamma−0.5768
Magnitude0.9269
Maximum eclipse
Duration478 s (7 min 58 s)
Coordinates39°30′S 117°24′E / 39.5°S 117.4°E / -39.5; 117.4
Max. width of band334 km (208 mi)
Times (UTC)
Greatest eclipse5:12:26
References
Saros138 (25 of 70)
Catalog # (SE5000)9292

An annular solar eclipse occurred at the Moon's descending node of orbit on Monday, March 6, 1905,[1][2][3] with a magnitude of 0.9269. 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. Occurring about 2.1 days before apogee (on March 8, 1905, at 7:00 UTC), the Moon's apparent diameter was smaller.[4]

Annularity was visible from Heard Island and McDonald Islands (now an Australian external territory), Australia, New Caledonia, and New Hebrides (now Vanuatu). A partial eclipse was visible for parts of Madagascar, Antarctica, Australia, and Oceania.

Eclipse details

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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]

March 6, 1905 Solar Eclipse Times
Event Time (UTC)
First Penumbral External Contact 1905 March 06 at 02:19:16.2 UTC
First Umbral External Contact 1905 March 06 at 03:32:13.3 UTC
First Central Line 1905 March 06 at 03:35:52.7 UTC
First Umbral Internal Contact 1905 March 06 at 03:39:35.1 UTC
Equatorial Conjunction 1905 March 06 at 04:51:33.7 UTC
Greatest Duration 1905 March 06 at 05:10:13.7 UTC
Greatest Eclipse 1905 March 06 at 05:12:25.7 UTC
Ecliptic Conjunction 1905 March 06 at 05:19:19.8 UTC
Last Umbral Internal Contact 1905 March 06 at 06:45:31.2 UTC
Last Central Line 1905 March 06 at 06:49:14.2 UTC
Last Umbral External Contact 1905 March 06 at 06:52:54.4 UTC
Last Penumbral External Contact 1905 March 06 at 08:05:47.3 UTC
March 6, 1905 Solar Eclipse Parameters
Parameter Value
Eclipse Magnitude 0.92691
Eclipse Obscuration 0.85916
Gamma −0.57684
Sun Right Ascension 23h04m40.3s
Sun Declination -05°55'14.1"
Sun Semi-Diameter 16'07.0"
Sun Equatorial Horizontal Parallax 08.9"
Moon Right Ascension 23h05m16.9s
Moon Declination -06°25'02.0"
Moon Semi-Diameter 14'45.4"
Moon Equatorial Horizontal Parallax 0°54'09.6"
ΔT 4.1 s

Eclipse season

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See also: Eclipse cycle

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 February–March 1905
February 19
Ascending node (full moon)		 March 6
Descending node (new moon)
Partial lunar eclipse
Lunar Saros 112		 Annular solar eclipse
Solar Saros 138
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Eclipses in 1905

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Metonic

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Tzolkinex

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Half-Saros

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Tritos

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Solar Saros 138

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Inex

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Triad

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Solar eclipses of 1902–1906

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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 May 7, 1902 and October 31, 1902 occur in the previous lunar year eclipse set, and the partial solar eclipse on July 21, 1906 occurs in the next lunar year eclipse set.

Solar eclipse series sets from 1902 to 1906
Descending node   Ascending node
Saros Map Gamma Saros Map Gamma
108 April 8, 1902

Partial 		1.5024 113 October 1, 1902
118 March 29, 1903

Annular 		0.8413 123 September 21, 1903

Total 		−0.8967
128 March 17, 1904

Annular 		0.1299 133 September 9, 1904

Total 		−0.1625
138 March 6, 1905

Annular 		−0.5768 143
 August 30, 1905

Total 		0.5708
148 February 23, 1906

Partial 		−1.2479 153 August 20, 1906

Partial 		1.3731

Saros 138

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This eclipse is a part of Saros series 138, repeating every 18 years, 11 days, and containing 70 events. The series started with a partial solar eclipse on June 6, 1472. It contains annular eclipses from August 31, 1598 through February 18, 2482; a hybrid eclipse on March 1, 2500; and total eclipses from March 12, 2518 through April 3, 2554. The series ends at member 70 as a partial eclipse on July 11, 2716. 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 23 at 8 minutes, 2 seconds on February 11, 1869, and the longest duration of totality will be produced by member 61 at 56 seconds on April 3, 2554. All eclipses in this series occur at the Moon’s descending node of orbit.[7]

Series members 20–41 occur between 1801 and 2200:
20 21 22

January 10, 1815
January 20, 1833
February 1, 1851
23 24 25

February 11, 1869
February 22, 1887
March 6, 1905
26 27 28

March 17, 1923
March 27, 1941
April 8, 1959
29 30 31

April 18, 1977
April 29, 1995
May 10, 2013
32 33 34

May 21, 2031
May 31, 2049
June 11, 2067
35 36 37

June 22, 2085
July 4, 2103
July 14, 2121
38 39 40

July 25, 2139
August 5, 2157
August 16, 2175
41

August 26, 2193

Metonic series

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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 descending node.

22 eclipse events between March 5, 1848 and July 30, 1935
March 5–6 December 22–24 October 9–11 July 29–30 May 17–18
108 110 112 114 116

March 5, 1848
July 29, 1859
May 17, 1863
118 120 122 124 126

March 6, 1867
December 22, 1870
October 10, 1874
July 29, 1878
May 17, 1882
128 130 132 134 136

March 5, 1886
December 22, 1889
October 9, 1893
July 29, 1897
May 18, 1901
138 140 142 144 146

March 6, 1905
December 23, 1908
October 10, 1912
July 30, 1916
May 18, 1920
148 150 152 154

March 5, 1924
December 24, 1927
October 11, 1931
July 30, 1935

Tritos series

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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.

The partial solar eclipses on December 18, 2188 (part of Saros 164) and November 18, 2199 (part of Saros 165) are also a part of this series but are not included in the table below.

Series members between 1801 and 2134

December 10, 1806
(Saros 129)
November 9, 1817
(Saros 130)
October 9, 1828
(Saros 131)
September 7, 1839
(Saros 132)
August 7, 1850
(Saros 133)

July 8, 1861
(Saros 134)
June 6, 1872
(Saros 135)
May 6, 1883
(Saros 136)
April 6, 1894
(Saros 137)
March 6, 1905
(Saros 138)

February 3, 1916
(Saros 139)
January 3, 1927
(Saros 140)
December 2, 1937
(Saros 141)
November 1, 1948
(Saros 142)
October 2, 1959
(Saros 143)

August 31, 1970
(Saros 144)
July 31, 1981
(Saros 145)
June 30, 1992
(Saros 146)
May 31, 2003
(Saros 147)
April 29, 2014
(Saros 148)

March 29, 2025
(Saros 149)
February 27, 2036
(Saros 150)
January 26, 2047
(Saros 151)
December 26, 2057
(Saros 152)
November 24, 2068
(Saros 153)

October 24, 2079
(Saros 154)
September 23, 2090
(Saros 155)
August 24, 2101
(Saros 156)
July 23, 2112
(Saros 157)
June 23, 2123
(Saros 158)

May 23, 2134
(Saros 159)

Inex series

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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

May 5, 1818
(Saros 135)
April 15, 1847
(Saros 136)
March 25, 1876
(Saros 137)

March 6, 1905
(Saros 138)
February 14, 1934
(Saros 139)
January 25, 1963
(Saros 140)

January 4, 1992
(Saros 141)
December 14, 2020
(Saros 142)
November 25, 2049
(Saros 143)

November 4, 2078
(Saros 144)
October 16, 2107
(Saros 145)
September 26, 2136
(Saros 146)

September 5, 2165
(Saros 147)
August 16, 2194
(Saros 148)

Notes

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  1. ^ "March 6, 1905 Annular Solar Eclipse". timeanddate. Retrieved 30 July 2024.
  2. ^ "Page 4". The Age. Melbourne, Victoria, Victoria, Australia. 1905-03-06. p. 4. Retrieved 2023-10-27 – via Newspapers.com.
  3. ^ "Eclipse of the sun". The Leader. Orange, New South Wales, Australia. 1905-03-06. p. 3. Retrieved 2023-10-27 – via Newspapers.com.
  4. ^ "Moon Distances for London, United Kingdom, England". timeanddate. Retrieved 30 July 2024.
  5. ^ "Total Solar Eclipse of 1905 Mar 06". EclipseWise.com. Retrieved 30 July 2024.
  6. ^ 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.
  7. ^ "NASA - Catalog of Solar Eclipses of Saros 138". eclipse.gsfc.nasa.gov.

References

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