October 1966 lunar eclipse
A penumbral lunar eclipse occurred at the Moon’s ascending node of orbit on Saturday, October 29, 1966, with an umbral magnitude of −0.1249. A lunar eclipse occurs when the Moon moves into the Earth's shadow, causing the Moon to be darkened. A penumbral lunar eclipse occurs when part or all of the Moon's near side passes into the Earth's penumbra. 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. Occurring about 4 days after apogee, the Moon's apparent diameter was smaller.
Visibility
The eclipse was completely visible over northeast Asia, much of North America, and the Pacific Ocean, seen rising over east and southeast Asia and Australia and setting over eastern North America and South America.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 | 0.95172 |
| Umbral Magnitude | −0.12488 |
| Gamma | −1.05999 |
| Sun Right Ascension | 14h12m57.7s |
| Sun Declination | -13°22'20.9" |
| Sun Semi-Diameter | 16'06.2" |
| Sun Equatorial Horizontal Parallax | 08.9" |
| Moon Right Ascension | 02h14m38.8s |
| Moon Declination | +12°29'37.7" |
| Moon Semi-Diameter | 14'57.5" |
| Moon Equatorial Horizontal Parallax | 0°54'53.8" |
| ΔT | 37.2 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.| October 29 Ascending node | November 12 Descending node |
| Penumbral lunar eclipse Lunar Saros 116 | Total solar eclipse Solar Saros 142 |
Related eclipses
Eclipses in 1966
- A penumbral lunar eclipse on May 4.
- An annular solar eclipse on May 20.A penumbral lunar eclipse on October 29.
- A total solar eclipse on November 12.
Metonic
- Preceded by: Lunar eclipse of January 9, 1963
- Followed by: Lunar eclipse of August 17, 1970
Tzolkinex
- Preceded by: Lunar eclipse of September 17, 1959
- Followed by: Lunar eclipse of December 10, 1973
Half-Saros
- Preceded by: Solar eclipse of October 23, 1957
- Followed by: Solar eclipse of November 3, 1975
Tritos
- Preceded by: Lunar eclipse of November 29, 1955
- Followed by: Lunar eclipse of September 27, 1977
Lunar Saros 116
- Preceded by: Lunar eclipse of October 18, 1948
- Followed by: Lunar eclipse of November 8, 1984
Inex
- Preceded by: Lunar eclipse of November 18, 1937
- Followed by: Lunar eclipse of October 8, 1995
Triad
- Preceded by: Lunar eclipse of December 28, 1879
- Followed by: Lunar eclipse of August 29, 2053
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 solar eclipses of Solar Saros 123.| October 23, 1957 | November 3, 1975 |