Solar eclipse of July 20, 1925 | |
---|---|
Type of eclipse | |
Nature | Annular |
Gamma | -0.7193 |
Magnitude | 0.9436 |
Maximum eclipse | |
Duration | 435 sec (7 m 15 s) |
Coordinates | 25°18′S150°00′W / 25.3°S 150°W |
Max. width of band | 300 km (190 mi) |
Times (UTC) | |
Greatest eclipse | 21:48:42 |
References | |
Saros | 125 (49 of 73) |
Catalog # (SE5000) | 9340 |
An annular solar eclipse occurred on July 20, 1925. 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 northern part of Northland Region and the whole Kermadec Islands in New Zealand on July 21st (Tuesday), and Rapa Iti in French Polynesia on July 20th (Monday).
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]
Solar eclipse series sets from 1924–1928 | ||||
---|---|---|---|---|
Ascending node | Descending node | |||
115 | July 31, 1924 Partial | 120 | January 24, 1925 Total | |
125 | July 20, 1925 Annular | 130 | January 14, 1926 Total | |
135 | July 9, 1926 Annular | 140 | January 3, 1927 Annular | |
145 | June 29, 1927 Total | 150 | December 24, 1927 Partial | |
155 | June 17, 1928 Partial |
Solar saros 125, repeating every about 18 years and 11 days, contains 73 events. The series started with a partial solar eclipse on February 4, 1060. It has total eclipses from June 13, 1276, to July 16, 1330. It has hybrid eclipses on July 26, 1348, and August 7, 1366, and annular eclipses from August 17, 1384, to August 22, 1979. The series ends at member 73 as a partial eclipse on April 9, 2358. The longest total eclipse occurred on June 25, 1294, at 1 minute and 11 seconds; the longest annular eclipse occurred on July 10, 1907, at 7 minutes and 23 seconds. [2]
Series members 47–58 occur between 1881 and 2100: | ||
---|---|---|
47 | 48 | 49 |
June 28, 1889 | July 10, 1907 | July 20, 1925 |
50 | 51 | 52 |
August 1, 1943 | August 11, 1961 | August 22, 1979 |
53 | 54 | 55 |
September 2, 1997 | September 13, 2015 | September 23, 2033 |
56 | 57 | 58 |
October 4, 2051 | October 15, 2069 | October 26, 2087 |
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.
Inex series members between 1901 and 2100: | ||
---|---|---|
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) |
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 1901 and 2100 | |||
---|---|---|---|
September 21, 1903 (Saros 123) | August 21, 1914 (Saros 124) | July 20, 1925 (Saros 125) | |
June 19, 1936 (Saros 126) | May 20, 1947 (Saros 127) | April 19, 1958 (Saros 128) | |
March 18, 1969 (Saros 129) | February 16, 1980 (Saros 130) | January 15, 1991 (Saros 131) | |
December 14, 2001 (Saros 132) | November 13, 2012 (Saros 133) | October 14, 2023 (Saros 134) | |
September 12, 2034 (Saros 135) | August 12, 2045 (Saros 136) | July 12, 2056 (Saros 137) | |
June 11, 2067 (Saros 138) | May 11, 2078 (Saros 139) | April 10, 2089 (Saros 140) | |
March 10, 2100 (Saros 141) |
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).
22 eclipse events between December 13, 1898 and July 20, 1982 | ||||
---|---|---|---|---|
December 13–14 | October 1–2 | July 20–21 | May 9 | February 24–25 |
111 | 113 | 115 | 117 | 119 |
December 13, 1898 | July 21, 1906 | May 9, 1910 | February 25, 1914 | |
121 | 123 | 125 | 127 | 129 |
December 14, 1917 | October 1, 1921 | July 20, 1925 | May 9, 1929 | February 24, 1933 |
131 | 133 | 135 | 137 | 139 |
December 13, 1936 | October 1, 1940 | July 20, 1944 | May 9, 1948 | February 25, 1952 |
141 | 143 | 145 | 147 | 149 |
December 14, 1955 | October 2, 1959 | July 20, 1963 | May 9, 1967 | February 25, 1971 |
151 | 153 | 155 | ||
December 13, 1974 | October 2, 1978 | July 20, 1982 |
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