Solar eclipse of October 12, 1958
Template:Short description Script error: No such module "Solar eclipse". A total solar eclipse occurred at the Moon's ascending node of orbit on Sunday, October 12, 1958,[1] with a magnitude of 1.0608. 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. Occurring about 5.5 hours before perigee (on October 13, 1958, at 2:30 UTC), the Moon's apparent diameter was larger.[2]
Totality was visible in Tokelau, Cook Islands, French Polynesia, Chile and Argentina. A partial eclipse was visible for parts of Eastern Australia, Oceania, and western South America.
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.[3]
| Event | Time (UTC) |
|---|---|
| First Penumbral External Contact | 1958 October 12 at 18:20:31.5 UTC |
| First Umbral External Contact | 1958 October 12 at 19:15:58.5 UTC |
| First Central Line | 1958 October 12 at 19:17:11.0 UTC |
| First Umbral Internal Contact | 1958 October 12 at 19:18:23.5 UTC |
| First Penumbral Internal Contact | 1958 October 12 at 20:18:33.1 UTC |
| Ecliptic Conjunction | 1958 October 12 at 20:52:27.4 UTC |
| Greatest Eclipse | 1958 October 12 at 20:55:28.0 UTC |
| Greatest Duration | 1958 October 12 at 20:57:26.1 UTC |
| Equatorial Conjunction | 1958 October 12 at 21:04:31.8 UTC |
| Last Penumbral Internal Contact | 1958 October 12 at 21:32:08.7 UTC |
| Last Umbral Internal Contact | 1958 October 12 at 22:32:25.5 UTC |
| Last Central Line | 1958 October 12 at 22:33:38.3 UTC |
| Last Umbral External Contact | 1958 October 12 at 22:34:51.1 UTC |
| Last Penumbral External Contact | 1958 October 12 at 23:30:19.6 UTC |
| Parameter | Value |
|---|---|
| Eclipse Magnitude | 1.06084 |
| Eclipse Obscuration | 1.12539 |
| Gamma | −0.29506 |
| Sun Right Ascension | 13h10m12.6s |
| Sun Declination | -07°27'01.0" |
| Sun Semi-Diameter | 16'01.8" |
| Sun Equatorial Horizontal Parallax | 08.8" |
| Moon Right Ascension | 13h09m51.7s |
| Moon Declination | -07°44'19.9" |
| Moon Semi-Diameter | 16'43.7" |
| Moon Equatorial Horizontal Parallax | 1°01'23.7" |
| ΔT | 32.6 s |
Eclipse season
Script error: No such module "Labelled list hatnote". 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.
| October 12 Ascending node (new moon) |
October 27 Descending node (full moon) |
|---|---|
| File:SE1958Oct12T.png | File:Lunar eclipse chart close-1958Oct27.png |
| Total solar eclipse Solar Saros 133 |
Penumbral lunar eclipse Lunar Saros 145 |
Related eclipses
Eclipses in 1958
- A penumbral lunar eclipse on April 4.
- An annular solar eclipse on April 19.
- A partial lunar eclipse on May 3.
- A total solar eclipse on October 12.
- A penumbral lunar eclipse on October 27.
Metonic
- Preceded by: Solar eclipse of December 25, 1954
- Followed by: Solar eclipse of July 31, 1962
Tzolkinex
- Preceded by: Solar eclipse of September 1, 1951
- Followed by: Solar eclipse of November 23, 1965
Half-Saros
- Preceded by: Lunar eclipse of October 7, 1949
- Followed by: Lunar eclipse of October 18, 1967
Tritos
- Preceded by: Solar eclipse of November 12, 1947
- Followed by: Solar eclipse of September 11, 1969
Solar Saros 133
- Preceded by: Solar eclipse of October 1, 1940
- Followed by: Solar eclipse of October 23, 1976
Inex
- Preceded by: Solar eclipse of November 1, 1929
- Followed by: Solar eclipse of September 23, 1987
Triad
- Preceded by: Solar eclipse of December 12, 1871
- Followed by: Solar eclipse of August 12, 2045
Solar eclipses of 1957–1960
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.[4]
| Solar eclipse series sets from 1957 to 1960 | ||||||
|---|---|---|---|---|---|---|
| Descending node | Ascending node | |||||
| Saros | Map | Gamma | Saros | Map | Gamma | |
| 118 | April 30, 1957 File:SE1957Apr30A.png Annular (non-central) |
0.9992 | 123 | October 23, 1957 File:SE1957Oct23T.png Total (non-central) |
1.0022 | |
| 128 | April 19, 1958 File:SE1958Apr19A.png Annular |
0.275 | 133 | October 12, 1958 File:SE1958Oct12T.png Total |
−0.2951 | |
| 138 | April 8, 1959 File:SE1959Apr08A.png Annular |
−0.4546 | 143 | October 2, 1959 File:SE1959Oct02T.png Total |
0.4207 | |
| 148 | March 27, 1960 File:SE1960Mar27P.png Partial |
−1.1537 | 153 | September 20, 1960 File:SE1960Sep20P.png Partial |
1.2057 | |
Saros 133
This eclipse is a part of Saros series 133, repeating every 18 years, 11 days, and containing 72 events. The series started with a partial solar eclipse on July 13, 1219. It contains annular eclipses from November 20, 1435 through January 13, 1526; a hybrid eclipse on January 24, 1544; and total eclipses from February 3, 1562 through June 21, 2373. The series ends at member 72 as a partial eclipse on September 5, 2499. 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 25 at 1 minutes, 14 seconds on November 30, 1453, and the longest duration of totality was produced by member 61 at 6 minutes, 50 seconds on August 7, 1850. All eclipses in this series occur at the Moon’s ascending node of orbit.[5]
| Series members 34–55 occur between 1801 and 2200: | ||
|---|---|---|
| 34 | 35 | 36 |
| File:SE1814Jul17T.png July 17, 1814 |
File:SE1832Jul27T.png July 27, 1832 |
File:SE1850Aug07T.png August 7, 1850 |
| 37 | 38 | 39 |
| File:SE1868Aug18T.png August 18, 1868 |
File:SE1886Aug29T.png August 29, 1886 |
File:SE1904Sep09T.png September 9, 1904 |
| 40 | 41 | 42 |
| File:SE1922Sep21T.png September 21, 1922 |
File:SE1940Oct01T.png October 1, 1940 |
File:SE1958Oct12T.png October 12, 1958 |
| 43 | 44 | 45 |
| File:SE1976Oct23T.png October 23, 1976 |
File:SE1994Nov03T.png November 3, 1994 |
File:SE2012Nov13T.png November 13, 2012 |
| 46 | 47 | 48 |
| File:SE2030Nov25T.png November 25, 2030 |
File:SE2048Dec05T.png December 5, 2048 |
File:SE2066Dec17T.png December 17, 2066 |
| 49 | 50 | 51 |
| File:SE2084Dec27T.png December 27, 2084 |
File:SE2103Jan08T.png January 8, 2103 |
File:SE2121Jan19T.png January 19, 2121 |
| 52 | 53 | 54 |
| File:SE2139Jan30T.png January 30, 2139 |
File:SE2157Feb09T.png February 9, 2157 |
File:SE2175Feb21T.png February 21, 2175 |
| 55 | ||
| File:SE2193Mar03T.png March 3, 2193 | ||
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.
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.
Inex series
Template:Solar Inex series 2016 September 1
Notes
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References
- Earth visibility chart and eclipse statistics Eclipse Predictions by Fred Espenak, NASA/GSFC
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