• Source: August 1989 lunar eclipse

A total lunar eclipse took place at 0308 UT (GMT) on Thursday, August 17, 1989, the second of two total lunar eclipses in 1989.
The Moon passed through the center of the Earth's shadow.




Visibility


It was seen completely over South America, and rising over North America, and setting over Africa, and Europe.




Relations to other lunar eclipses






= Eclipses of 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.




= Lunar year series

=
This eclipse is the second of four lunar year eclipses occurring at the Moon's ascending node.
The lunar year series repeats after 12 lunations or 354 days (Shifting back about 10 days in sequential years). Because of the date shift, the Earth's shadow will be about 11 degrees west in sequential events.




= Saros series

=
Lunar saros series 128, repeating every 18 years and 11 days, has a total of 71 lunar eclipse events including 57 umbral eclipses (42 partial lunar eclipses and 15 total lunar eclipses). Solar Saros 135 interleaves with this lunar saros with an event occurring every 9 years 5 days alternating between each saros series.

Lunar Saros 128 contains 15 total lunar eclipses between 1845 and 2097 (in years 1845, 1863, 1881, 1899, 1917, 1935, 1953, 1971, 1989, 2007, 2025, 2043, 2061, 2079 and 2097). Solar Saros 135 interleaves with this lunar saros with an event occurring every 9 years 5 days alternating between each saros series.




= Metonic series

=
It is the third of five Metonic cycle eclipses, each being separated by 19 years:
The Metonic cycle repeats nearly exactly every 19 years and represents a Saros cycle plus one lunar year. Because it occurs on the same calendar date, the Earth's shadow will in nearly the same location relative to the background stars.




= Tritos series

=
The tritos series repeats 31 days short of 11 years at alternating nodes. Sequential events have incremental Saros cycle indices.
This series produces 23 total eclipses between June 22, 1880 and August 9, 2120.




= Half-Saros cycle

=
A lunar eclipse will be preceded and followed by solar eclipses by 9 years and 5.5 days (a half saros). This lunar eclipse is related to two annular solar eclipses of Solar Saros 135.




See also


List of lunar eclipses
List of 20th-century lunar eclipses




Notes






External links


1989 Aug 17 chart Eclipse Predictions by Fred Espenak, NASA/GSFC

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