Solar eclipse of March 6, 1905 | |
---|---|
Type of eclipse | |
Nature | Annular |
Gamma | −0.5768 |
Magnitude | 0.9269 |
Maximum eclipse | |
Duration | 478 s (7 min 58 s) |
Coordinates | 39°30′S117°24′E / 39.5°S 117.4°E |
Max. width of band | 334 km (208 mi) |
Times (UTC) | |
Greatest eclipse | 5:12:26 |
References | |
Saros | 138 (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.
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]
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 |
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 |
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 19 Ascending node (full moon) | March 6 Descending node (new moon) |
---|---|
Partial lunar eclipse Lunar Saros 112 | Annular solar eclipse Solar Saros 138 |
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 |
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 |
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 |
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) |
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) |
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