Solar eclipse of April 8, 1902
A partial solar eclipse occurred at the Moon's descending node of orbit on Tuesday, April 8, 1902,[1][2][3] with a magnitude of 0.0643. 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.
A partial eclipse was visible for parts of Northern Canada. This was the 76th and final event from Solar Saros 108.
Eclipse details
Shown below are two tables displaying details about this particular solar eclipse. The first table outlines times at which the moon's penumbra or umbra attains the specific parameter, and the second table describes various other parameters pertaining to this eclipse.[4]
Event | Time (UTC) |
---|---|
First Penumbral External Contact | 1902 April 08 at 13:30:48.0 UTC |
Ecliptic Conjunction | 1902 April 08 at 13:49:56.8 UTC |
Greatest Eclipse | 1902 April 08 at 14:05:06.1 UTC |
Last Penumbral External Contact | 1902 April 08 at 14:38:58.1 UTC |
Equatorial Conjunction | 1902 April 08 at 14:53:23.6 UTC |
Parameter | Value |
---|---|
Eclipse Magnitude | 0.06431 |
Eclipse Obscuration | 0.01951 |
Gamma | 1.50241 |
Sun Right Ascension | 01h05m40.1s |
Sun Declination | +06°59'22.0" |
Sun Semi-Diameter | 15'58.0" |
Sun Equatorial Horizontal Parallax | 08.8" |
Moon Right Ascension | 01h03m53.9s |
Moon Declination | +08°25'24.6" |
Moon Semi-Diameter | 16'21.4" |
Moon Equatorial Horizontal Parallax | 1°00'01.8" |
ΔT | 0.3 s |
Eclipse season
This eclipse is part of an eclipse season, a period, roughly every six months, when eclipses occur. Only two (or occasionally three) eclipse seasons occur each year, and each season lasts about 35 days and repeats just short of six months (173 days) later; thus two full eclipse seasons always occur each year. Either two or three eclipses happen each eclipse season. In the sequence below, each eclipse is separated by a fortnight. The first and last eclipse in this sequence is separated by one synodic month.
April 8 Descending node (new moon) | April 22 Ascending node (full moon) | May 7 Descending node (new moon) |
---|---|---|
![]() | ![]() | ![]() |
Partial solar eclipse Solar Saros 108 | Total lunar eclipse Lunar Saros 120 | Partial solar eclipse Solar Saros 146 |
Related eclipses
Eclipses in 1902
- A partial solar eclipse on April 8.
- A total lunar eclipse on April 22.
- A partial solar eclipse on May 7.
- A total lunar eclipse on October 17.
- A partial solar eclipse on October 31.
Solar Saros 108
- Preceded by: Solar eclipse of March 27, 1884
Solar eclipses of 1902–1906
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.[5]
The partial solar eclipses on May 7, 1902 and October 31, 1902 occur in the previous lunar year eclipse set, and the partial solar eclipse on July 21, 1906 occurs in the next lunar year eclipse set.
Solar eclipse series sets from 1902 to 1906 | ||||||
---|---|---|---|---|---|---|
Descending node | Ascending node | |||||
Saros | Map | Gamma | Saros | Map | Gamma | |
108 | April 8, 1902![]() Partial | 1.5024 | 113 | October 1, 1902 | ||
118 | March 29, 1903![]() Annular | 0.8413 | 123 | September 21, 1903![]() Total | −0.8967 | |
128 | March 17, 1904![]() Annular | 0.1299 | 133 | September 9, 1904![]() Total | −0.1625 | |
138 | March 6, 1905![]() Annular | −0.5768 | 143![]() | August 30, 1905![]() Total | 0.5708 | |
148 | February 23, 1906![]() Partial | −1.2479 | 153 | August 20, 1906![]() Partial | 1.3731 |
Saros 108
This eclipse is a part of Saros series 108, repeating every 18 years, 11 days, and containing 76 events. The series started with a partial solar eclipse on January 4, 550 AD. It contains annular eclipses from May 13, 766 AD through December 4, 1108; hybrid eclipses from December 15, 1126 through January 28, 1199; and total eclipses from February 7, 1217 through August 11, 1523. The series ends at member 76 as a partial eclipse on April 8, 1902. 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 13 at 3 minutes, 35 seconds on May 13, 766 AD, and the longest duration of totality was produced by member 46 at 5 minutes, 7 seconds on May 5, 1361. All eclipses in this series occur at the Moon’s descending node of orbit.[6]
Series members 71–76 occur between 1801 and 1902: | ||
---|---|---|
71 | 72 | 73 |
![]() February 12, 1812 | ![]() February 23, 1830 | ![]() March 5, 1848 |
74 | 75 | 76 |
![]() March 16, 1866 | ![]() March 27, 1884 | ![]() April 8, 1902 |
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.
22 eclipse events between April 8, 1902 and August 31, 1989 | ||||
---|---|---|---|---|
April 7–8 | January 24–25 | November 12 | August 31–September 1 | June 19–20 |
108 | 110 | 112 | 114 | 116 |
![]() April 8, 1902 | ![]() August 31, 1913 | ![]() June 19, 1917 | ||
118 | 120 | 122 | 124 | 126 |
![]() April 8, 1921 | ![]() January 24, 1925 | ![]() November 12, 1928 | ![]() August 31, 1932 | ![]() June 19, 1936 |
128 | 130 | 132 | 134 | 136 |
![]() April 7, 1940 | ![]() January 25, 1944 | ![]() November 12, 1947 | ![]() September 1, 1951 | ![]() June 20, 1955 |
138 | 140 | 142 | 144 | 146 |
![]() April 8, 1959 | ![]() January 25, 1963 | ![]() November 12, 1966 | ![]() August 31, 1970 | ![]() June 20, 1974 |
148 | 150 | 152 | 154 | |
![]() April 7, 1978 | ![]() January 25, 1982 | ![]() November 12, 1985 | ![]() August 31, 1989 |
Tritos series
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.
The partial solar eclipses on April 8, 1902 (part of Saros 108) and January 5, 1935 (part of Saros 111) are also a part of this series but are not included in the table below.
Series members between 2000 and 2200 | ||||
---|---|---|---|---|
![]() July 1, 2000 (Saros 117) | ![]() June 1, 2011 (Saros 118) | ![]() April 30, 2022 (Saros 119) | ![]() March 30, 2033 (Saros 120) | ![]() February 28, 2044 (Saros 121) |
![]() January 27, 2055 (Saros 122) | ![]() December 27, 2065 (Saros 123) | ![]() November 26, 2076 (Saros 124) | ![]() October 26, 2087 (Saros 125) | ![]() September 25, 2098 (Saros 126) |
![]() August 26, 2109 (Saros 127) | ![]() July 25, 2120 (Saros 128) | ![]() June 25, 2131 (Saros 129) | ![]() May 25, 2142 (Saros 130) | ![]() April 23, 2153 (Saros 131) |
![]() March 23, 2164 (Saros 132) | ![]() February 21, 2175 (Saros 133) | ![]() January 20, 2186 (Saros 134) | ![]() December 19, 2196 (Saros 135) |
Notes
- ^ "April 8, 1902 Partial Solar Eclipse". timeanddate. Retrieved 30 July 2024.
- ^ "There was an eclipse of the sun to-day". The Gazette. Cedar Rapids, Iowa. 1902-04-08. p. 3. Retrieved 2023-10-27 – via Newspapers.com.
- ^ "City items". The Dayton Herald. Dayton, Ohio. 1902-04-09. p. 10. Retrieved 2023-10-27 – via Newspapers.com.
- ^ "Partial Solar Eclipse of 1902 Apr 08". EclipseWise.com. Retrieved 30 July 2024.
- ^ 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 108". eclipse.gsfc.nasa.gov.
References
- Earth visibility chart and eclipse statistics Eclipse Predictions by Fred Espenak, NASA/GSFC
- Besselian elements
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