Solar eclipse of October 21, 1930
Solar eclipse of October 21, 1930 | |
---|---|
Type of eclipse | |
Nature | Total |
Gamma | −0.3804 |
Magnitude | 1.023 |
Maximum eclipse | |
Duration | 115 s (1 min 55 s) |
Coordinates | 30°30′S 161°06′W / 30.5°S 161.1°W |
Max. width of band | 84 km (52 mi) |
Times (UTC) | |
Greatest eclipse | 21:43:53 |
References | |
Saros | 142 (18 of 72) |
Catalog # (SE5000) | 9352 |
A total solar eclipse occurred at the Moon's descending node of orbit on Tuesday, October 21, 1930, with a magnitude of 1.023. 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 total solar eclipse occurs when the Moon's apparent diameter is larger than the Sun's, blocking all direct sunlight, turning day into darkness. Totality occurs in a narrow path across Earth's surface, with the partial solar eclipse visible over a surrounding region thousands of kilometres wide. Totality was visible from Niuafoʻou in Tonga, Chile, and a tiny part of Santa Cruz Province, Argentina.
Related eclipses[edit]
Eclipses in 1930[edit]
- A partial lunar eclipse on April 13, 1930.
- A hybrid solar eclipse on April 28, 1930.
- A partial lunar eclipse on October 7, 1930.
- A total solar eclipse on October 21, 1930.
Metonic[edit]
- Preceded by: Solar eclipse of January 3, 1927
- Followed by: Solar eclipse of August 10, 1934
Tzolkinex[edit]
- Preceded by: Solar eclipse of September 10, 1923
- Followed by: Solar eclipse of December 2, 1937
Half-Saros[edit]
- Preceded by: Lunar eclipse of October 16, 1921
- Followed by: Lunar eclipse of October 28, 1939
Tritos[edit]
- Preceded by: Solar eclipse of November 22, 1919
- Followed by: Solar eclipse of September 21, 1941
Solar Saros 142[edit]
- Preceded by: Solar eclipse of October 10, 1912
- Followed by: Solar eclipse of November 1, 1948
Inex[edit]
- Preceded by: Solar eclipse of November 11, 1901
- Followed by: Solar eclipse of October 2, 1959
Triad[edit]
- Preceded by: Solar eclipse of December 21, 1843
- Followed by: Solar eclipse of August 21, 2017
Solar eclipses of 1928–1931[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]
The partial solar eclipse on June 17, 1928 occurs in the previous lunar year eclipse set, and the partial solar eclipse on September 12, 1931 occurs in the next lunar year eclipse set.
Solar eclipse series sets from 1928 to 1931 | ||||||
---|---|---|---|---|---|---|
Ascending node | Descending node | |||||
Saros | Map | Gamma | Saros | Map | Gamma | |
117 | May 19, 1928![]() Total (non-central) |
1.0048 | 122 | November 12, 1928![]() Partial |
1.0861 | |
127 | May 9, 1929![]() Total |
−0.2887 | 132 | November 1, 1929![]() Annular |
0.3514 | |
137 | April 28, 1930![]() Hybrid |
0.473 | 142 | October 21, 1930![]() Total |
−0.3804 | |
147 | April 18, 1931![]() Partial |
1.2643 | 152 | October 11, 1931![]() Partial |
−1.0607 |
Saros 142[edit]
This eclipse is a part of Saros series 142, repeating every 18 years, 11 days, and containing 72 events. The series started with a partial solar eclipse on April 17, 1624. It contains a hybrid eclipse on July 14, 1768, and total eclipses from July 25, 1786 through October 29, 2543. There are no annular eclipses in this set. The series ends at member 72 as a partial eclipse on June 5, 2904. 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 38 at 6 minutes, 34 seconds on May 28, 2291. All eclipses in this series occur at the Moon’s descending node of orbit.[2]
Series members 11–32 occur between 1801 and 2200: | ||
---|---|---|
11 | 12 | 13 |
![]() August 5, 1804 |
![]() August 16, 1822 |
![]() August 27, 1840 |
14 | 15 | 16 |
![]() September 7, 1858 |
![]() September 17, 1876 |
![]() September 29, 1894 |
17 | 18 | 19 |
![]() October 10, 1912 |
![]() October 21, 1930 |
![]() November 1, 1948 |
20 | 21 | 22 |
![]() November 12, 1966 |
![]() November 22, 1984 |
![]() December 4, 2002 |
23 | 24 | 25 |
![]() December 14, 2020 |
![]() December 26, 2038 |
![]() January 5, 2057 |
26 | 27 | 28 |
![]() January 16, 2075 |
![]() January 27, 2093 |
![]() February 8, 2111 |
29 | 30 | 31 |
![]() February 18, 2129 |
![]() March 2, 2147 |
![]() March 12, 2165 |
32 | ||
![]() March 23, 2183 |
Inex series[edit]
This 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.
Inex series members between 1901 and 2100: | ||
---|---|---|
![]() November 11, 1901 (Saros 141) |
![]() October 21, 1930 (Saros 142) |
![]() October 2, 1959 (Saros 143) |
![]() September 11, 1988 (Saros 144) |
![]() August 21, 2017 (Saros 145) |
![]() August 2, 2046 (Saros 146) |
![]() July 13, 2075 (Saros 147) |
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 142". eclipse.gsfc.nasa.gov.
References[edit]
- Earth visibility chart and eclipse statistics Eclipse Predictions by Fred Espenak, NASA/GSFC