Solar eclipse of July 22, 1971 | |
---|---|
Type of eclipse | |
Nature | Partial |
Gamma | 1.513 |
Magnitude | 0.0689 |
Maximum eclipse | |
Coordinates | 63°30′N 177°00′E / 63.5°N 177°E |
Times (UTC) | |
Greatest eclipse | 9:31:55 |
References | |
Saros | 116 (70 of 70) |
Catalog # (SE5000) | 9446 |
A partial solar eclipse occurred at the Moon's descending node of orbit on Thursday, July 22, 1971, with a magnitude of 0.0689. 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 partial solar eclipse occurs in the polar regions of the Earth when the center of the Moon's shadow misses the Earth. This was the 70th and final solar eclipse from Solar Saros 116.
Related eclipses
Eclipses in 1971
- A total lunar eclipse on February 10, 1971.
- A partial solar eclipse on February 25, 1971.
- A partial solar eclipse on July 22, 1971.
- A total lunar eclipse on August 6, 1971.
- A partial solar eclipse on August 20, 1971.
Metonic
- Followed by: Solar eclipse of May 11, 1975
Tzolkinex
- Preceded by: Solar eclipse of June 10, 1964
Half-Saros
- Preceded by: Lunar eclipse of July 17, 1962
- Followed by: Lunar eclipse of July 27, 1980
Tritos
- Followed by: Solar eclipse of June 21, 1982
Solar Saros 116
- Preceded by: Solar eclipse of July 11, 1953
Inex
- Preceded by: Solar eclipse of August 12, 1942
- Followed by: Solar eclipse of July 1, 2000
Triad
- Followed by: Solar eclipse of May 22, 2058
Solar eclipses of 1971–1974
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]
The partial solar eclipses on February 25, 1971 and August 20, 1971 occur in the previous lunar year eclipse set.
Solar eclipse series sets from 1971 to 1974 | ||||||
---|---|---|---|---|---|---|
Descending node | Ascending node | |||||
Saros | Map | Gamma | Saros | Map | Gamma | |
116 | July 22, 1971 Partial |
1.513 | 121 | January 16, 1972 Annular |
−0.9365 | |
126 | July 10, 1972 Total |
0.6872 | 131 | January 4, 1973 Annular |
−0.2644 | |
136 | June 30, 1973 Total |
−0.0785 | 141 | December 24, 1973 Annular |
0.4171 | |
146 | June 20, 1974 Total |
−0.8239 | 151 | December 13, 1974 Partial |
1.0797 |
Saros 116
This eclipse is a part of Saros series 116, repeating every 18 years, 11 days, and containing 70 events. The series started with a partial solar eclipse on June 23, 727 AD. It contains annular eclipses from October 10, 907 AD through May 6, 1845. There are no hybrid or total eclipses in this set. The series ends at member 70 as a partial eclipse on July 22, 1971. 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 51 at 12 minutes, 2 seconds on December 25, 1628. All eclipses in this series occur at the Moon’s descending node of orbit.[2]
Series members 61–70 occur between 1801 and 1971: | ||
---|---|---|
61 | 62 | 63 |
April 14, 1809 |
April 26, 1827 |
May 6, 1845 |
64 | 65 | 66 |
May 17, 1863 |
May 27, 1881 |
June 8, 1899 |
67 | 68 | 69 |
June 19, 1917 |
June 30, 1935 |
July 11, 1953 |
70 | ||
July 22, 1971 |
Metonic series
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 between July 22, 1971 and July 22, 2047 | ||||
---|---|---|---|---|
July 22 | May 9–11 | February 26–27 | December 14–15 | October 2–3 |
116 | 118 | 120 | 122 | 124 |
July 22, 1971 |
May 11, 1975 |
February 26, 1979 |
December 15, 1982 |
October 3, 1986 |
126 | 128 | 130 | 132 | 134 |
July 22, 1990 |
May 10, 1994 |
February 26, 1998 |
December 14, 2001 |
October 3, 2005 |
136 | 138 | 140 | 142 | 144 |
July 22, 2009 |
May 10, 2013 |
February 26, 2017 |
December 14, 2020 |
October 2, 2024 |
146 | 148 | 150 | 152 | 154 |
July 22, 2028 |
May 9, 2032 |
February 27, 2036 |
December 15, 2039 |
October 3, 2043 |
156 | ||||
July 22, 2047 |
References
- ^ 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 116". eclipse.gsfc.nasa.gov.
External links
- Earth visibility chart and eclipse statistics Eclipse Predictions by Fred Espenak, NASA/GSFC