Solar eclipse of January 23, 1917 | |
---|---|
Type of eclipse | |
Nature | Partial |
Gamma | 1.1508 |
Magnitude | 0.7254 |
Maximum eclipse | |
Coordinates | 63°12′N 25°36′E / 63.2°N 25.6°E |
Times (UTC) | |
Greatest eclipse | 7:28:31 |
References | |
Saros | 149 (15 of 71) |
Catalog # (SE5000) | 9319 |
A partial solar eclipse occurred at the Moon's ascending node of orbit on Tuesday, January 23, 1917, with a magnitude of 0.7254. 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 first of four solar eclipses in 1917, with the others occurring on June 19, July 19, and December 14.
Related eclipses
Eclipses in 1917
- A total lunar eclipse on January 8, 1917.
- A partial solar eclipse on January 23, 1917.
- A partial solar eclipse on June 19, 1917.
- A total lunar eclipse on July 4, 1917.
- A partial solar eclipse on July 19, 1917.
- An annular solar eclipse on December 14, 1917.
Metonic
- Preceded by: Solar eclipse of April 6, 1913
- Followed by: Solar eclipse of November 10, 1920
Tzolkinex
- Preceded by: Solar eclipse of December 12, 1909
- Followed by: Solar eclipse of March 5, 1924
Half-Saros
- Preceded by: Lunar eclipse of January 18, 1908
- Followed by: Lunar eclipse of January 28, 1926
Tritos
- Preceded by: Solar eclipse of February 23, 1906
- Followed by: Solar eclipse of December 24, 1927
Solar Saros 149
- Preceded by: Solar eclipse of January 11, 1899
- Followed by: Solar eclipse of February 3, 1935
Inex
- Preceded by: Solar eclipse of February 11, 1888
- Followed by: Solar eclipse of January 3, 1946
Triad
- Preceded by: Solar eclipse of March 24, 1830
- Followed by: Solar eclipse of November 23, 2003
Solar eclipses of 1913–1917
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 April 6, 1913 and September 30, 1913 occur in the previous lunar year eclipse set, and the solar eclipses on December 24, 1916 (partial), June 19, 1917 (partial), and December 14, 1917 (annular) occur in the next lunar year eclipse set.
Solar eclipse series sets from 1913 to 1917 | ||||||
---|---|---|---|---|---|---|
Descending node | Ascending node | |||||
Saros | Map | Gamma | Saros | Map | Gamma | |
114 | August 31, 1913 Partial |
1.4512 | 119 | February 25, 1914 Annular |
−0.9416 | |
124 | August 21, 1914 Total |
0.7655 | 129 | February 14, 1915 Annular |
−0.2024 | |
134 | August 10, 1915 Annular |
0.0124 | 139 |
February 3, 1916 Total |
0.4987 | |
144 | July 30, 1916 Annular |
−0.7709 | 149 | January 23, 1917 Partial |
1.1508 | |
154 | July 19, 1917 Partial |
−1.5101 |
Saros 149
This eclipse is a part of Saros series 149, repeating every 18 years, 11 days, and containing 71 events. The series started with a partial solar eclipse on August 21, 1664. It contains total eclipses from April 9, 2043 through October 2, 2331; hybrid eclipses from October 13, 2349 through November 3, 2385; and annular eclipses from November 15, 2403 through July 13, 2800. The series ends at member 71 as a partial eclipse on September 28, 2926. 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 will be produced by member 31 at 4 minutes, 10 seconds on July 17, 2205, and the longest duration of annularity will be produced by member 62 at 5 minutes, 6 seconds on June 21, 2764. All eclipses in this series occur at the Moon’s ascending node of orbit.[2]
Series members 9–30 occur between 1801 and 2200: | ||
---|---|---|
9 | 10 | 11 |
November 18, 1808 |
November 29, 1826 |
December 9, 1844 |
12 | 13 | 14 |
December 21, 1862 |
December 31, 1880 |
January 11, 1899 |
15 | 16 | 17 |
January 23, 1917 |
February 3, 1935 |
February 14, 1953 |
18 | 19 | 20 |
February 25, 1971 |
March 7, 1989 |
March 19, 2007 |
21 | 22 | 23 |
March 29, 2025 |
April 9, 2043 |
April 20, 2061 |
24 | 25 | 26 |
May 1, 2079 |
May 11, 2097 |
May 24, 2115 |
27 | 28 | 29 |
June 3, 2133 |
June 14, 2151 |
June 25, 2169 |
30 | ||
July 6, 2187 |
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 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 |
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 149". eclipse.gsfc.nasa.gov.
External links
- Earth visibility chart and eclipse statistics Eclipse Predictions by Fred Espenak, NASA/GSFC