An annular solar eclipse occurred at the Moon's ascending node of orbit on Wednesday, July 10, 1907,[1][2][3][4] with a magnitude of 0.9456. 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. Occurring about 17 hours after apogee (on July 9, 1907, at 22:20 UTC), the Moon's apparent diameter was smaller.[5]
| Solar eclipse of July 10, 1907 | |
|---|---|
 Map | |
| Type of eclipse | |
| Nature | Annular |
| Gamma | −0.6313 |
| Magnitude | 0.9456 |
| Maximum eclipse | |
| Duration | 443 s (7 min 23 s) |
| Coordinates | 16°54′S 50°54′W / 16.9°S 50.9°W |
| Max. width of band | 258 km (160 mi) |
| Times (UTC) | |
| Greatest eclipse | 15:24:32 |
| References | |
| Saros | 125 (48 of 73) |
| Catalog # (SE5000) | 9298 |
Annularity was visible from Chile, Bolivia (including its capital Sucre), and Brazil. A partial eclipse was visible for most of South America and parts of southern Central America.
Eclipse details
editShown 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.[6]
| Event | Time (UTC) |
|---|---|
| First Penumbral External Contact | 1907 July 10 at 12:34:39.3 UTC |
| First Umbral External Contact | 1907 July 10 at 13:49:46.3 UTC |
| First Central Line | 1907 July 10 at 13:52:42.4 UTC |
| First Umbral Internal Contact | 1907 July 10 at 13:55:40.8 UTC |
| Ecliptic Conjunction | 1907 July 10 at 15:17:01.9 UTC |
| Greatest Duration | 1907 July 10 at 15:23:22.5 UTC |
| Greatest Eclipse | 1907 July 10 at 15:24:32.3 UTC |
| Equatorial Conjunction | 1907 July 10 at 15:26:36.7 UTC |
| Last Umbral Internal Contact | 1907 July 10 at 16:53:22.7 UTC |
| Last Central Line | 1907 July 10 at 16:56:20.7 UTC |
| Last Umbral External Contact | 1907 July 10 at 16:59:16.4 UTC |
| Last Penumbral External Contact | 1907 July 10 at 18:14:23.5 UTC |
| Parameter | Value |
|---|---|
| Eclipse Magnitude | 0.94562 |
| Eclipse Obscuration | 0.89421 |
| Gamma | −0.63126 |
| Sun Right Ascension | 07h14m35.6s |
| Sun Declination | +22°20'34.4" |
| Sun Semi-Diameter | 15'43.9" |
| Sun Equatorial Horizontal Parallax | 08.6" |
| Moon Right Ascension | 07h14m31.5s |
| Moon Declination | +21°46'36.5" |
| Moon Semi-Diameter | 14'42.3" |
| Moon Equatorial Horizontal Parallax | 0°53'58.2" |
| ΔT | 6.9 s |
Eclipse season
editThis 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.
| July 10 Ascending node (new moon) |
July 25 Descending node (full moon) |
|---|---|
| |
|
| Annular solar eclipse Solar Saros 125 |
Partial lunar eclipse Lunar Saros 137 |
Related eclipses
editEclipses in 1907
edit- A total solar eclipse on January 14.
- A partial lunar eclipse on January 29.
- An annular solar eclipse on July 10.
- A partial lunar eclipse on July 25.
Metonic
edit- Preceded by: Solar eclipse of September 21, 1903
- Followed by: Solar eclipse of April 28, 1911
Tzolkinex
edit- Preceded by: Solar eclipse of May 28, 1900
- Followed by: Solar eclipse of August 21, 1914
Half-Saros
edit- Preceded by: Lunar eclipse of July 3, 1898
- Followed by: Lunar eclipse of July 15, 1916
Tritos
edit- Preceded by: Solar eclipse of August 9, 1896
- Followed by: Solar eclipse of June 8, 1918
Solar Saros 125
edit- Preceded by: Solar eclipse of June 28, 1889
- Followed by: Solar eclipse of July 20, 1925
Inex
edit- Preceded by: Solar eclipse of July 29, 1878
- Followed by: Solar eclipse of June 19, 1936
Triad
edit- Preceded by: Solar eclipse of September 7, 1820
- Followed by: Solar eclipse of May 10, 1994
Solar eclipses of 1906–1909
editThis 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.[7]
The partial solar eclipses on February 23, 1906 and August 20, 1906 occur in the previous lunar year eclipse set.
| Solar eclipse series sets from 1906 to 1909 | ||||||
|---|---|---|---|---|---|---|
| Ascending node | Descending node | |||||
| Saros | Map | Gamma | Saros | Map | Gamma | |
| 115 | July 21, 1906 Partial |
−1.3637 | 120 | January 14, 1907 Total |
0.8628 | |
| 125 | July 10, 1907 Annular |
−0.6313 | 130 | January 3, 1908 Total |
0.1934 | |
| 135 | June 28, 1908 Annular |
0.1389 | 140 | December 23, 1908 Hybrid |
−0.4985 | |
| 145 | June 17, 1909 Hybrid |
0.8957 | 150 | December 12, 1909 Partial |
−1.2456 | |
Saros 125
editThis eclipse is a part of Saros series 125, repeating every 18 years, 11 days, and containing 73 events. The series started with a partial solar eclipse on February 4, 1060. It contains total eclipses from June 13, 1276 through July 16, 1330; hybrid eclipses on July 26, 1348 and August 7, 1366; and annular eclipses from August 17, 1384 through August 22, 1979. The series ends at member 73 as a partial eclipse on April 9, 2358. 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 14 at 1 minutes, 11 seconds on June 25, 1294, and the longest duration of annularity was produced by member 48 at 7 minutes, 23 seconds on July 10, 1907. All eclipses in this series occur at the Moon’s ascending node of orbit.[8]
| Series members 43–64 occur between 1801 and 2200: | ||
|---|---|---|
| 43 | 44 | 45 |
 May 16, 1817 |
 May 27, 1835 |
 June 6, 1853 |
| 46 | 47 | 48 |
 June 18, 1871 |
 June 28, 1889 |
July 10, 1907 |
| 49 | 50 | 51 |
 July 20, 1925 |
 August 1, 1943 |
 August 11, 1961 |
| 52 | 53 | 54 |
 August 22, 1979 |
 September 2, 1997 |
 September 13, 2015 |
| 55 | 56 | 57 |
 September 23, 2033 |
 October 4, 2051 |
 October 15, 2069 |
| 58 | 59 | 60 |
 October 26, 2087 |
 November 6, 2105 |
 November 18, 2123 |
| 61 | 62 | 63 |
 November 28, 2141 |
 December 9, 2159 |
 December 20, 2177 |
| 64 | ||
 December 31, 2195 | ||
Metonic series
editThe 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.
| 22 eclipse events between December 2, 1880 and July 9, 1964 | ||||
|---|---|---|---|---|
| December 2–3 | September 20–21 | July 9–10 | April 26–28 | February 13–14 |
| 111 | 113 | 115 | 117 | 119 |
 December 2, 1880 |
 July 9, 1888 |
 April 26, 1892 |
 February 13, 1896 | |
| 121 | 123 | 125 | 127 | 129 |
 December 3, 1899 |
 September 21, 1903 |
July 10, 1907 |
 April 28, 1911 |
 February 14, 1915 |
| 131 | 133 | 135 | 137 | 139 |
 December 3, 1918 |
 September 21, 1922 |
 July 9, 1926 |
 April 28, 1930 |
 February 14, 1934 |
| 141 | 143 | 145 | 147 | 149 |
 December 2, 1937 |
 September 21, 1941 |
 July 9, 1945 |
 April 28, 1949 |
 February 14, 1953 |
| 151 | 153 | 155 | ||
 December 2, 1956 |
 September 20, 1960 |
 July 9, 1964 | ||
Tritos series
editThis 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 1801 and 2200 | ||||
|---|---|---|---|---|
 April 14, 1809 (Saros 116) |
 March 14, 1820 (Saros 117) |
 February 12, 1831 (Saros 118) |
 January 11, 1842 (Saros 119) |
 December 11, 1852 (Saros 120) |
 November 11, 1863 (Saros 121) |
 October 10, 1874 (Saros 122) |
 September 8, 1885 (Saros 123) |
 August 9, 1896 (Saros 124) |
July 10, 1907 (Saros 125) |
 June 8, 1918 (Saros 126) |
 May 9, 1929 (Saros 127) |
 April 7, 1940 (Saros 128) |
 March 7, 1951 (Saros 129) |
 February 5, 1962 (Saros 130) |
 January 4, 1973 (Saros 131) |
 December 4, 1983 (Saros 132) |
 November 3, 1994 (Saros 133) |
 October 3, 2005 (Saros 134) |
 September 1, 2016 (Saros 135) |
 August 2, 2027 (Saros 136) |
 July 2, 2038 (Saros 137) |
 May 31, 2049 (Saros 138) |
 April 30, 2060 (Saros 139) |
 March 31, 2071 (Saros 140) |
 February 27, 2082 (Saros 141) |
 January 27, 2093 (Saros 142) |
 December 29, 2103 (Saros 143) |
 November 27, 2114 (Saros 144) |
 October 26, 2125 (Saros 145) |
 September 26, 2136 (Saros 146) |
 August 26, 2147 (Saros 147) |
 July 25, 2158 (Saros 148) |
 June 25, 2169 (Saros 149) |
 May 24, 2180 (Saros 150) |
 April 23, 2191 (Saros 151) | ||||
Inex series
editThis 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.
| Series members between 1801 and 2200 | ||
|---|---|---|
 September 7, 1820 (Saros 122) |
 August 18, 1849 (Saros 123) |
 July 29, 1878 (Saros 124) |
| July 10, 1907 (Saros 125) |
 June 19, 1936 (Saros 126) |
 May 30, 1965 (Saros 127) |
 May 10, 1994 (Saros 128) |
 April 20, 2023 (Saros 129) |
 March 30, 2052 (Saros 130) |
 March 10, 2081 (Saros 131) |
 February 18, 2110 (Saros 132) |
 January 30, 2139 (Saros 133) |
 January 10, 2168 (Saros 134) |
 December 19, 2196 (Saros 135) |
|
Notes
edit- ^ "July 10, 1907 Annular Solar Eclipse". timeanddate. Retrieved 31 July 2024.
- ^ "Eclipse of the sun". The Daily Telegraph. London, Greater London, England. 1907-07-10. p. 4. Retrieved 2023-11-01 – via Newspapers.com.
- ^ "Eclipse of sun will occur today". The Washington Times. Washington, District of Columbia. 1907-07-10. p. 5. Retrieved 2023-11-01 – via Newspapers.com.
- ^ "Eclipse of the sun". Grimsby Evening Telegraph. Grimsby, Humberside, England. 1907-07-11. p. 2. Retrieved 2023-11-01 – via Newspapers.com.
- ^ "Moon Distances for London, United Kingdom, England". timeanddate. Retrieved 31 July 2024.
- ^ "Annular Solar Eclipse of 1907 Jul 10". EclipseWise.com. Retrieved 31 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 125". eclipse.gsfc.nasa.gov.
References
edit- Earth visibility chart and eclipse statistics Eclipse Predictions by Fred Espenak, NASA/GSFC
