Solar eclipse of April 30, 1957
Solar eclipse of April 30, 1957 | |
---|---|
Type of eclipse | |
Nature | Annular |
Gamma | 0.9992 |
Magnitude | 0.9799 |
Maximum eclipse | |
Duration | - |
Coordinates | 70°36′N 40°18′E / 70.6°N 40.3°E |
Max. width of band | - km |
Times (UTC) | |
Greatest eclipse | 0:05:28 |
References | |
Saros | 118 (65 of 72) |
Catalog # (SE5000) | 9414 |
An annular solar eclipse occurred at the Moon's descending node of orbit on Tuesday, April 30, 1957, with a magnitude of 0.9799. 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. This annular solar eclipse was non-central. Instead, over half of the antumbral shadow fell off into space throughout the eclipse. Gamma had a value of 0.9992. Annularity was visible from northern Soviet Union (today's Russia) and Bear Island, the southernmost island of Svalbard, Norway.
This was the last of 57 umbral eclipses of Solar Saros 118. The 1st was in 947 AD and the 57th was in 1957. The total duration is 1010 years.
While it was an annular solar eclipse, it was a non-central solar eclipse.
Related eclipses[edit]
Eclipses in 1957[edit]
- An annular solar eclipse on April 30, 1957.
- A total lunar eclipse on May 13, 1957.
- A total solar eclipse on October 23, 1957.
- A total lunar eclipse on November 7, 1957.
Metonic[edit]
- Preceded by: Solar eclipse of July 11, 1953
- Followed by: Solar eclipse of February 15, 1961
Tzolkinex[edit]
- Preceded by: Solar eclipse of March 18, 1950
- Followed by: Solar eclipse of June 10, 1964
Half-Saros[edit]
- Preceded by: Lunar eclipse of April 23, 1948
- Followed by: Lunar eclipse of May 4, 1966
Tritos[edit]
- Preceded by: Solar eclipse of May 30, 1946
- Followed by: Solar eclipse of March 28, 1968
Solar Saros 118[edit]
- Preceded by: Solar eclipse of April 19, 1939
- Followed by: Solar eclipse of May 11, 1975
Inex[edit]
- Preceded by: Solar eclipse of May 19, 1928
- Followed by: Solar eclipse of April 9, 1986
Triad[edit]
- Preceded by: Solar eclipse of June 28, 1870
- Followed by: Solar eclipse of February 28, 2044
Solar eclipses of 1957–1960[edit]
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 1957 to 1960 | ||||||
---|---|---|---|---|---|---|
Descending node | Ascending node | |||||
Saros | Map | Gamma | Saros | Map | Gamma | |
118 | April 30, 1957 Annular (non-central) |
0.9992 | 123 | October 23, 1957 Total (non-central) |
1.0022 | |
128 | April 19, 1958 Annular |
0.275 | 133 | October 12, 1958 Total |
−0.2951 | |
138 | April 8, 1959 Annular |
−0.4546 | 143 | October 2, 1959 Total |
0.4207 | |
148 | March 27, 1960 Partial |
−1.1537 | 153 | September 20, 1960 Partial |
1.2057 |
Saros 118[edit]
This eclipse is a part of Saros series 118, repeating every 18 years, 11 days, and containing 72 events. The series started with a partial solar eclipse on May 24, 803 AD. It contains total eclipses from August 19, 947 AD through October 25, 1650; hybrid eclipses on November 4, 1668 and November 15, 1686; and annular eclipses from November 27, 1704 through April 30, 1957. The series ends at member 72 as a partial eclipse on July 15, 2083. 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 totality was produced by member 34 at 6 minutes, 59 seconds on May 16, 1398, and the longest duration of annularity was produced by member 59 at 1 minutes, 58 seconds on February 23, 1849. All eclipses in this series occur at the Moon’s descending node of orbit.[2]
Series members 57–72 occur between 1801 and 2083: | ||
---|---|---|
57 | 58 | 59 |
February 1, 1813 |
February 12, 1831 |
February 23, 1849 |
60 | 61 | 62 |
March 6, 1867 |
March 16, 1885 |
March 29, 1903 |
63 | 64 | 65 |
April 8, 1921 |
April 19, 1939 |
April 30, 1957 |
66 | 67 | 68 |
May 11, 1975 |
May 21, 1993 |
June 1, 2011 |
69 | 70 | 71 |
June 12, 2029 |
June 23, 2047 |
July 3, 2065 |
72 | ||
July 15, 2083 |
Metonic series[edit]
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.
21 eclipse events, progressing from north to south between July 11, 1953 and July 11, 2029 | ||||
---|---|---|---|---|
July 10–12 | April 29–30 | February 15–16 | December 4–5 | September 21–23 |
116 | 118 | 120 | 122 | 124 |
July 11, 1953 |
April 30, 1957 |
February 15, 1961 |
December 4, 1964 |
September 22, 1968 |
126 | 128 | 130 | 132 | 134 |
July 10, 1972 |
April 29, 1976 |
February 16, 1980 |
December 4, 1983 |
September 23, 1987 |
136 | 138 | 140 | 142 | 144 |
July 11, 1991 |
April 29, 1995 |
February 16, 1999 |
December 4, 2002 |
September 22, 2006 |
146 | 148 | 150 | 152 | 154 |
July 11, 2010 |
April 29, 2014 |
February 15, 2018 |
December 4, 2021 |
September 21, 2025 |
156 | 158 | 160 | 162 | 164 |
July 11, 2029 |
Notes[edit]
- ^ 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.
- ^ "NASA - Catalog of Solar Eclipses of Saros 118". eclipse.gsfc.nasa.gov.
References[edit]
- Earth visibility chart and eclipse statistics Eclipse Predictions by Fred Espenak, NASA/GSFC