- Source: Solar eclipse of June 20, 1974
A total solar eclipse occurred at the Moon's descending node of orbit on Thursday, June 20, 1974, with a magnitude of 1.0592. A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally or partly obscuring the view 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 1.4 days before perigee (on June 21, 1974, at 14:50 UTC), the Moon's apparent diameter was larger.
The path of totality passed over the Indian Ocean, Amsterdam Island, and Western Australia. A partial eclipse was visible for parts of Madagascar, Indonesia, Australia, and the southwestern coast of South Island, New Zealand.
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.
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.
Related eclipses
= Eclipses in 1974
=A partial lunar eclipse on June 4.
A total solar eclipse on June 20.
A total lunar eclipse on November 29.
A partial solar eclipse on December 13.
= Metonic
=Preceded by: Solar eclipse of August 31, 1970
Followed by: Solar eclipse of April 7, 1978
= Tzolkinex
=Preceded by: Solar eclipse of May 9, 1967
Followed by: Solar eclipse of July 31, 1981
= Half-Saros
=Preceded by: Lunar eclipse of June 14, 1965
Followed by: Lunar eclipse of June 25, 1983
= Tritos
=Preceded by: Solar eclipse of July 20, 1963
Followed by: Solar eclipse of May 19, 1985
= Solar Saros 146
=Preceded by: Solar eclipse of June 8, 1956
Followed by: Solar eclipse of June 30, 1992
= Inex
=Preceded by: Solar eclipse of July 9, 1945
Followed by: Solar eclipse of May 31, 2003
= Triad
=Preceded by: Solar eclipse of August 19, 1887
Followed by: Solar eclipse of April 20, 2061
= Solar eclipses of 1971–1974
=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.
The partial solar eclipses on February 25, 1971 and August 20, 1971 occur in the previous lunar year eclipse set.
= Saros 146
=This eclipse is a part of Saros series 146, repeating every 18 years, 11 days, and containing 76 events. The series started with a partial solar eclipse on September 19, 1541. It contains total eclipses from May 29, 1938 through October 7, 2154; hybrid eclipses from October 17, 2172 through November 20, 2226; and annular eclipses from November 30, 2244 through August 10, 2659. The series ends at member 76 as a partial eclipse on December 29, 2893. 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 26 at 5 minutes, 21 seconds on June 30, 1992, and the longest duration of annularity will be produced by member 63 at 3 minutes, 30 seconds on August 10, 2659. All eclipses in this series occur at the Moon’s descending node of orbit.
= 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.
= 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 December 7, 2170 (part of Saros 164) and November 7, 2181 (part of Saros 165) are also a part of this series but are not included in the table below.
= Inex series
=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.
References
External links
Earth visibility chart and eclipse statistics Eclipse Predictions by Fred Espenak, NASA/GSFC
Google interactive map
Besselian elements
Kata Kunci Pencarian:
- Matahari
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- Bulan
- California
- Pulau Caroline
- Helios
- Lee Soon-jae
- Solar eclipse of June 20, 1974
- Solar eclipse of June 20, 1955
- Solar eclipse of July 20, 1963
- List of solar eclipses in the 21st century
- Solar eclipse of June 30, 1992
- Solar eclipse of April 8, 2024
- Solar eclipse of August 2, 2027
- Solar eclipse of June 21, 2001
- List of solar eclipses in the 22nd century
- List of solar eclipses in the 20th century
