Solar eclipse of August 29, 1867 | |
---|---|
Type of eclipse | |
Nature | Total |
Gamma | −0.794 |
Magnitude | 1.0344 |
Maximum eclipse | |
Duration | 171 s (2 min 51 s) |
Coordinates | 41°06′S34°54′W / 41.1°S 34.9°W |
Max. width of band | 189 km (117 mi) |
Times (UTC) | |
Greatest eclipse | 13:13:07 |
References | |
Saros | 123 (45 of 70) |
Catalog # (SE5000) | 9205 |
A total solar eclipse occurred at the Moon's ascending node of orbit on Thursday, August 29, 1867, with a magnitude of 1.0344. 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 2.5 days after perigee (on August 27, 1867, at 2:00 UTC), the Moon's apparent diameter was larger. [1]
The path of totality was visible from parts of modern-day Chile, Argentina, and Uruguay. A partial solar eclipse was also visible for parts of South America, Southern Africa, and Antarctica.
José J. Vergara and Luis Grosch observed the eclipse from a small hill close to Santiago. [2]
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. [3]
Event | Time (UTC) |
---|---|
First Penumbral External Contact | 1867 August 29 at 10:53:07.3 UTC |
First Umbral External Contact | 1867 August 29 at 12:07:39.8 UTC |
First Central Line | 1867 August 29 at 12:08:47.2 UTC |
First Umbral Internal Contact | 1867 August 29 at 12:09:55.3 UTC |
Ecliptic Conjunction | 1867 August 29 at 13:04:53.8 UTC |
Greatest Duration | 1867 August 29 at 13:11:07.4 UTC |
Greatest Eclipse | 1867 August 29 at 13:13:06.8 UTC |
Equatorial Conjunction | 1867 August 29 at 13:37:17.8 UTC |
Last Umbral Internal Contact | 1867 August 29 at 14:16:03.1 UTC |
Last Central Line | 1867 August 29 at 14:17:09.0 UTC |
Last Umbral External Contact | 1867 August 29 at 14:18:14.1 UTC |
Last Penumbral External Contact | 1867 August 29 at 15:32:59.4 UTC |
Parameter | Value |
---|---|
Eclipse Magnitude | 1.03443 |
Eclipse Obscuration | 1.07005 |
Gamma | −0.79403 |
Sun Right Ascension | 10h29m57.6s |
Sun Declination | +09°25'50.6" |
Sun Semi-Diameter | 15'50.6" |
Sun Equatorial Horizontal Parallax | 08.7" |
Moon Right Ascension | 10h29m05.0s |
Moon Declination | +08°40'29.6" |
Moon Semi-Diameter | 16'13.7" |
Moon Equatorial Horizontal Parallax | 0°59'33.6" |
ΔT | 3.2 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.
August 29 Ascending node (new moon) | September 14 Descending node (full moon) |
---|---|
Total solar eclipse Solar Saros 123 | Partial lunar eclipse Lunar Saros 135 |
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. [4]
The partial solar eclipses on April 15, 1866 and October 8, 1866 occur in the previous lunar year eclipse set, and the solar eclipses on June 28, 1870 (partial) and December 22, 1870 (total) occur in the next lunar year eclipse set.
Solar eclipse series sets from 1866 to 1870 | ||||||
---|---|---|---|---|---|---|
Descending node | Ascending node | |||||
Saros | Map | Gamma | Saros | Map | Gamma | |
108 | March 16, 1866 Partial | 1.4241 | 113 | |||
118 | March 6, 1867 Annular | 0.7716 | 123 | August 29, 1867 Total | −0.7940 | |
128 | February 23, 1868 Annular | 0.0706 | 133 | August 18, 1868 Total | −0.0443 | |
138 | February 11, 1869 Annular | −0.6251 | 143 | August 7, 1869 Total | 0.6960 | |
148 | January 31, 1870 Partial | −1.2829 | 153 | July 28, 1870 Partial | 1.5044 |
This eclipse is a part of Saros series 123, repeating every 18 years, 11 days, and containing 70 events. The series started with a partial solar eclipse on April 29, 1074. It contains annular eclipses from July 2, 1182 through April 19, 1651; hybrid eclipses from April 30, 1669 through May 22, 1705; and total eclipses from June 3, 1723 through October 23, 1957. The series ends at member 70 as a partial eclipse on May 31, 2318. 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 19 at 8 minutes, 7 seconds on November 9, 1398, and the longest duration of totality was produced by member 42 at 3 minutes, 27 seconds on July 27, 1813. All eclipses in this series occur at the Moon’s ascending node of orbit. [5]
Series members 42–63 occur between 1801 and 2200: | ||
---|---|---|
42 | 43 | 44 |
July 27, 1813 | August 7, 1831 | August 18, 1849 |
45 | 46 | 47 |
August 29, 1867 | September 8, 1885 | September 21, 1903 |
48 | 49 | 50 |
October 1, 1921 | October 12, 1939 | October 23, 1957 |
51 | 52 | 53 |
November 3, 1975 | November 13, 1993 | November 25, 2011 |
54 | 55 | 56 |
December 5, 2029 | December 16, 2047 | December 27, 2065 |
57 | 58 | 59 |
January 7, 2084 | January 19, 2102 | January 30, 2120 |
60 | 61 | 62 |
February 9, 2138 | February 21, 2156 | March 3, 2174 |
63 | ||
March 13, 2192 |
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.
25 eclipse events between April 5, 1837 and June 17, 1928 | ||||
---|---|---|---|---|
April 5–6 | January 22–23 | November 10–11 | August 28–30 | June 17–18 |
107 | 109 | 111 | 113 | 115 |
April 5, 1837 | January 22, 1841 | November 10, 1844 | August 28, 1848 | June 17, 1852 |
117 | 119 | 121 | 123 | 125 |
April 5, 1856 | January 23, 1860 | November 11, 1863 | August 29, 1867 | June 18, 1871 |
127 | 129 | 131 | 133 | 135 |
April 6, 1875 | January 22, 1879 | November 10, 1882 | August 29, 1886 | June 17, 1890 |
137 | 139 | 141 | 143 | 145 |
April 6, 1894 | January 22, 1898 | November 11, 1901 | August 30, 1905 | June 17, 1909 |
147 | 149 | 151 | 153 | 155 |
April 6, 1913 | January 23, 1917 | November 10, 1920 | August 30, 1924 | June 17, 1928 |
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 | ||||
---|---|---|---|---|
March 4, 1802 (Saros 117) | February 1, 1813 (Saros 118) | January 1, 1824 (Saros 119) | November 30, 1834 (Saros 120) | October 30, 1845 (Saros 121) |
September 29, 1856 (Saros 122) | August 29, 1867 (Saros 123) | July 29, 1878 (Saros 124) | June 28, 1889 (Saros 125) | May 28, 1900 (Saros 126) |
April 28, 1911 (Saros 127) | March 28, 1922 (Saros 128) | February 24, 1933 (Saros 129) | January 25, 1944 (Saros 130) | December 25, 1954 (Saros 131) |
November 23, 1965 (Saros 132) | October 23, 1976 (Saros 133) | September 23, 1987 (Saros 134) | August 22, 1998 (Saros 135) | July 22, 2009 (Saros 136) |
June 21, 2020 (Saros 137) | May 21, 2031 (Saros 138) | April 20, 2042 (Saros 139) | March 20, 2053 (Saros 140) | February 17, 2064 (Saros 141) |
January 16, 2075 (Saros 142) | December 16, 2085 (Saros 143) | November 15, 2096 (Saros 144) | October 16, 2107 (Saros 145) | September 15, 2118 (Saros 146) |
August 15, 2129 (Saros 147) | July 14, 2140 (Saros 148) | June 14, 2151 (Saros 149) | May 14, 2162 (Saros 150) | April 12, 2173 (Saros 151) |
March 12, 2184 (Saros 152) | February 10, 2195 (Saros 153) |
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 | ||
---|---|---|
October 9, 1809 (Saros 121) | September 18, 1838 (Saros 122) | August 29, 1867 (Saros 123) |
August 9, 1896 (Saros 124) | July 20, 1925 (Saros 125) | June 30, 1954 (Saros 126) |
June 11, 1983 (Saros 127) | May 20, 2012 (Saros 128) | April 30, 2041 (Saros 129) |
April 11, 2070 (Saros 130) | March 21, 2099 (Saros 131) | March 1, 2128 (Saros 132) |
February 9, 2157 (Saros 133) | January 20, 2186 (Saros 134) |
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