Solar eclipse of March 7, 1989

A partial solar eclipse occurred at the Moon's ascending node of orbit on Tuesday, March 7, 1989, with a magnitude of 0.8268. 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 partial solar eclipse occurs in the polar regions of the Earth when the center of the Moon's shadow misses the Earth.

A partial eclipse was visible for parts of Hawaii, Alaska, Canada, the western and central United States, northwest Mexico, and Greenland.

Eclipse timing

Places experiencing partial eclipse

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 1989

• A total lunar eclipse on February 20
• A partial solar eclipse on March 7
• A total lunar eclipse on August 17
• A partial solar eclipse on August 31

Metonic

• Preceded by: Solar eclipse of May 19, 1985
• Followed by: Solar eclipse of December 24, 1992

Tzolkinex

• Preceded by: Solar eclipse of January 25, 1982
• Followed by: Solar eclipse of April 17, 1996

Half-Saros

• Preceded by: Lunar eclipse of March 1, 1980
• Followed by: Lunar eclipse of March 13, 1998

Tritos

• Preceded by: Solar eclipse of April 7, 1978
• Followed by: Solar eclipse of February 5, 2000

Solar Saros 149

• Preceded by: Solar eclipse of February 25, 1971
• Followed by: Solar eclipse of March 19, 2007

Inex

• Preceded by: Solar eclipse of March 27, 1960
• Followed by: Solar eclipse of February 15, 2018

Triad

• Preceded by: Solar eclipse of May 7, 1902
• Followed by: Solar eclipse of January 6, 2076

Solar eclipses of 1986–1989

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.

Saros 149

This eclipse is a part of Saros series 149, repeating every 18 years, 11 days, 8 hours and containing 71 events. The series started with a partial solar eclipse on August 21, 1664. It contains total eclipses from April 9, 2043 through October 2, 2331; hybrid eclipses from October 13, 2349 through November 3, 2385; and annular eclipses from November 15, 2403 through July 13, 2800. The series ends at member 71 as a partial eclipse on September 28, 2926. 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 31 at 4 minutes, 10 seconds on July 17, 2205, and the longest duration of annularity will be produced by member 62 at 5 minutes, 6 seconds on June 21, 2764. 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.

Notes

External links

• Eclipse Predictions by Fred Espenak, NASA/GSFC