Solar eclipse of January 4, 1973 | |
---|---|
Type of eclipse | |
Nature | Annular |
Gamma | -0.2644 |
Magnitude | 0.9303 |
Maximum eclipse | |
Duration | 469 sec (7 m 49 s) |
Coordinates | 37°54′S51°12′W / 37.9°S 51.2°W |
Max. width of band | 271 km (168 mi) |
Times (UTC) | |
Greatest eclipse | 15:46:21 |
References | |
Saros | 131 (48 of 70) |
Catalog # (SE5000) | 9449 |
An annular solar eclipse occurred on Thursday, January 4, 1973, with an eclipse magnitude of 0.9303. 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. Annularity was visible from Chile and Argentina.
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. [1]
Note: Partial solar eclipses on February 25, 1971 and August 20, 1971 occur in the next lunar year set.
Solar eclipse series sets from 1971–1974 | ||||||
---|---|---|---|---|---|---|
Descending node | Ascending node | |||||
Saros | Map | Gamma | Saros | Map | Gamma | |
116 | 1971 July 22 Partial | 1.51298 | 121 | 1972 January 16 Annular | -0.93651 | |
126 | 1972 July 10 Total | 0.68719 | 131 | 1973 January 4 Annular | -0.26441 | |
136 | 1973 June 30 Total | -0.07853 | 141 | 1973 December 24 Annular | 0.41710 | |
146 | 1974 June 20 Total | -0.82388 | 151 | 1974 December 13 Partial | 1.07974 |
It is a part of Saros cycle 131, repeating every 18 years, 11 days, containing 70 events. The series started with partial solar eclipse on August 1, 1125. It contains total eclipses from March 27, 1522 through May 30, 1612 and hybrid eclipses from June 10, 1630 through July 24, 1702, and annular eclipses from August 4, 1720 through June 18, 2243. The series ends at member 70 as a partial eclipse on September 2, 2369. The longest duration of totality was only 58 seconds on May 30, 1612. All eclipses in this series occurs at the Moon’s ascending node.
Series members 33–70 occur between 1702 and 2369 | ||
---|---|---|
33 | 34 | 35 |
July 24, 1702 | August 4, 1720 | August 15, 1738 |
36 | 37 | 38 |
August 25, 1756 | September 6, 1774 | September 16, 1792 |
39 | 40 | 41 |
September 28, 1810 | October 9, 1828 | October 20, 1846 |
42 | 43 | 44 |
October 30, 1864 | November 10, 1882 | November 22, 1900 |
45 | 46 | 47 |
December 3, 1918 | December 13, 1936 | December 25, 1954 |
48 | 49 | 50 |
January 4, 1973 | January 15, 1991 | January 26, 2009 |
51 | 52 | 53 |
February 6, 2027 | February 16, 2045 | February 28, 2063 |
54 | 55 | 56 |
March 10, 2081 | March 21, 2099 | April 2, 2117 |
57 | 58 | 59 |
April 13, 2135 | April 23, 2153 | May 5, 2171 |
60 | 61 | 62 |
May 15, 2189 | May 27, 2207 | June 6, 2225 |
63 | 64 | 65 |
June 18, 2243 | June 28, 2261 | July 9, 2279 |
66 | 67 | 68 |
July 20, 2297 | August 1, 2315 | August 11, 2333 |
69 | 70 | |
August 22, 2351 | September 2, 2369 |
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.
22 eclipse events between January 5, 1935 and August 11, 2018 | ||||
---|---|---|---|---|
January 4-5 | October 23-24 | August 10-12 | May 30-31 | March 18-19 |
111 | 113 | 115 | 117 | 119 |
January 5, 1935 | August 12, 1942 | May 30, 1946 | March 18, 1950 | |
121 | 123 | 125 | 127 | 129 |
January 5, 1954 | October 23, 1957 | August 11, 1961 | May 30, 1965 | March 18, 1969 |
131 | 133 | 135 | 137 | 139 |
January 4, 1973 | October 23, 1976 | August 10, 1980 | May 30, 1984 | March 18, 1988 |
141 | 143 | 145 | 147 | 149 |
January 4, 1992 | October 24, 1995 | August 11, 1999 | May 31, 2003 | March 19, 2007 |
151 | 153 | 155 | ||
January 4, 2011 | October 23, 2014 | August 11, 2018 |
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