June 1964 lunar eclipse
A total lunar eclipse occurred at the Moon’s descending node of orbit on Thursday, June 25, 1964, with an umbral magnitude of 1.5565. It was a central lunar eclipse, in which part of the Moon passed through the center of the Earth's shadow. A lunar eclipse occurs when the Moon moves into the Earth's shadow, causing the Moon to be darkened. A total lunar eclipse occurs when the Moon's near side entirely passes into the Earth's umbral shadow. Unlike a solar eclipse, which can only be viewed from a relatively small area of the world, a lunar eclipse may be viewed from anywhere on the night side of Earth. A total lunar eclipse can last up to nearly two hours, while a total solar eclipse lasts only a few minutes at any given place, because the Moon's shadow is smaller. Occurring about 1.5 days after apogee, the Moon's apparent diameter was smaller.
Visibility
The eclipse was completely visible over much of South America, western Europe, and west, central, and southern Africa, seen rising over much of North America and northwestern South America and setting over much of Europe, northeast Africa, the western half of Asia, and western Australia.Eclipse details
Shown below is a table displaying details about this particular solar eclipse. It describes various parameters pertaining to this eclipse.| Parameter | Value |
| Penumbral Magnitude | 2.62384 |
| Umbral Magnitude | 1.55649 |
| Gamma | −0.14611 |
| Sun Right Ascension | 06h15m16.1s |
| Sun Declination | +23°23'50.0" |
| Sun Semi-Diameter | 15'44.1" |
| Sun Equatorial Horizontal Parallax | 08.7" |
| Moon Right Ascension | 18h15m13.5s |
| Moon Declination | -23°31'42.9" |
| Moon Semi-Diameter | 14'44.5" |
| Moon Equatorial Horizontal Parallax | 0°54'06.1" |
| ΔT | 35.4 s |
Eclipse season
This eclipse is part of an eclipse season, a period, roughly every six months, when eclipses occur. Only two eclipse seasons occur each year, and each season lasts about 35 days and repeats just short of six months 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.| June 10 Ascending node | June 25 Descending node | July 9 Ascending node |
| Partial solar eclipse Solar Saros 117 | Total lunar eclipse Lunar Saros 129 | Partial solar eclipse Solar Saros 155 |
Related eclipses
Eclipses in 1964
- A partial solar eclipse on January 14.
- A partial solar eclipse on June 10.A total lunar eclipse on June 25.
- A partial solar eclipse on July 9.
- A partial solar eclipse on December 4.
- A total lunar eclipse on December 19.
Metonic
- Preceded by: Lunar eclipse of September 5, 1960
- Followed by: Lunar eclipse of April 13, 1968
Tzolkinex
- Preceded by: Lunar eclipse of May 13, 1957
- Followed by: Lunar eclipse of August 6, 1971
Half-Saros
- Preceded by: Solar eclipse of June 20, 1955
- Followed by: Solar eclipse of June 30, 1973
Tritos
- Preceded by: Lunar eclipse of July 26, 1953
- Followed by: Lunar eclipse of May 25, 1975
Lunar Saros 129
- Preceded by: Lunar eclipse of June 14, 1946
- Followed by: Lunar eclipse of July 6, 1982
Inex
- Preceded by: Lunar eclipse of July 16, 1935
- Followed by: Lunar eclipse of June 4, 1993
Triad
- Preceded by: Lunar eclipse of August 23, 1877
- Followed by: Lunar eclipse of April 26, 2051
Half-Saros cycle
A lunar eclipse will be preceded and followed by solar eclipses by 9 years and 5.5 days. This lunar eclipse is related to two total solar eclipses of Solar Saros 136.| June 20, 1955 | June 30, 1973 |