Solar eclipse of July 24, 2074

An annular solar eclipse will occur at the Moon's ascending node of orbit on Tuesday, July 24, 2074, with a magnitude of 0.9838. 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 5.6 days after perigee (on July 18, 2074, at 13:55 UTC), the Moon's apparent diameter will be larger.

The path of annularity will be visible from parts of the Maldives, the Andaman and Nicobar Islands, Thailand, Cambodia, Vietnam, the Philippines, Micronesia, and Tuvalu. A partial solar eclipse will also be visible for parts of South Asia, Southeast Asia, East Asia, northern Australia, and Oceania.

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. The first and last eclipse in this sequence is separated by one synodic month.

Related eclipses

Eclipses in 2074

• An annular solar eclipse on January 27.
• A penumbral lunar eclipse on February 11.
• A penumbral lunar eclipse on July 8.
• An annular solar eclipse on July 24.
• A penumbral lunar eclipse on August 7.

Metonic

• Preceded by: Solar eclipse of October 4, 2070
• Followed by: Solar eclipse of May 11, 2078

Tzolkinex

• Preceded by: Solar eclipse of June 11, 2067
• Followed by: Solar eclipse of September 3, 2081

Half-Saros

• Preceded by: Lunar eclipse of July 17, 2065
• Followed by: Lunar eclipse of July 29, 2083

Tritos

• Preceded by: Solar eclipse of August 24, 2063
• Followed by: Solar eclipse of June 22, 2085

Solar Saros 137

• Preceded by: Solar eclipse of July 12, 2056
• Followed by: Solar eclipse of August 3, 2092

Inex

• Preceded by: Solar eclipse of August 12, 2045
• Followed by: Solar eclipse of July 4, 2103

Triad

• Preceded by: Solar eclipse of September 23, 1987
• Followed by: Solar eclipse of May 25, 2161

Solar eclipses of 2073–2076

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 June 1, 2076 and November 26, 2076 occur in the next lunar year eclipse set.

Saros 137

This eclipse is a part of Saros series 137, repeating every 18 years, 11 days, and containing 70 events. The series started with a partial solar eclipse on May 25, 1389. It contains total eclipses from August 20, 1533 through December 6, 1695; the first set of hybrid eclipses from December 17, 1713 through February 11, 1804; the first set of annular eclipses from February 21, 1822 through March 25, 1876; the second set of hybrid eclipses from April 6, 1894 through April 28, 1930; and the second set of annular eclipses from May 9, 1948 through April 13, 2507. The series ends at member 70 as a partial eclipse on June 28, 2633. 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 11 at 2 minutes, 55 seconds on September 10, 1569, and the longest duration of annularity will be produced by member 59 at 7 minutes, 5 seconds on February 28, 2435. All eclipses in this series occur at the Moon’s ascending 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 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

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.

External links

• Eclipse Predictions by Fred Espenak, NASA/GSFC