Solar eclipse of July 9, 1964
A partial solar eclipse occurred at the Moon's ascending node of orbit on Thursday, July 9, 1964, with a magnitude of 0.3221. 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.
This was the third of four partial solar eclipses in 1964, with the others occurring on January 14, 1964|January 14], June 10, 1964|June 10], and December 4, 1964|December 4].
A partial eclipse was visible for parts of Canada, Greenland, and the eastern Soviet Union.
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.| Event | Time |
| First Penumbral External Contact | 1964 July 9 at 10:05:53.0 UTC |
| Equatorial Conjunction | 1964 July 9 at 11:13:17.6 UTC |
| Greatest Eclipse | 1964 July 9 at 11:17:53.0 UTC |
| Ecliptic Conjunction | 1964 July 9 at 11:31:22.2 UTC |
| Last Penumbral External Contact | 1964 July 9 at 12:29:56.9 UTC |
| Parameter | Value |
| Eclipse Magnitude | 0.32215 |
| Eclipse Obscuration | 0.21157 |
| Gamma | 1.36228 |
| Sun Right Ascension | 07h14m49.0s |
| Sun Declination | +22°19'48.2" |
| Sun Semi-Diameter | 15'43.9" |
| Sun Equatorial Horizontal Parallax | 08.6" |
| Moon Right Ascension | 07h15m00.8s |
| Moon Declination | +23°42'32.7" |
| Moon Semi-Diameter | 16'35.8" |
| Moon Equatorial Horizontal Parallax | 1°00'54.7" |
| 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: Solar eclipse of [September 20, 1960]
Tzolkinex
- Followed by: Solar eclipse of [August 20, 1971]
Half-Saros
- Followed by: Lunar eclipse of July 15, 1973
Tritos
- Preceded by: Solar eclipse of [August 9, 1953]
Solar Saros 155
- Preceded by: Solar eclipse of [June 29, 1946]
- Followed by: Solar eclipse of [July 20, 1982]
Inex
- Preceded by: Solar eclipse of [July 30, 1935]
Triad
- Preceded by: Solar eclipse of September 7, 1877