A penumbral lunar eclipse occurred at the Moon’s ascending node of orbit on Thursday, September 25, 1969, with an umbral magnitude of −0.0952. 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 3.4 days after perigee (on September 22, 1969, at 11:45 UTC), the Moon's apparent diameter was larger.
Visibility The eclipse was completely visible over Europe, Africa, and Asia, seen rising over eastern South America and west Africa and setting over northeast Asia and Australia.
Eclipse details Shown below is a table displaying details about this particular solar eclipse. It describes various parameters pertaining to this eclipse.
+September 25, 1969 Lunar Eclipse Parameters Parameter Value Penumbral Magnitude 0.90080 Umbral Magnitude −0.09519 Gamma 1.06558 Sun Right Ascension 12h09m26.5s Sun Declination -01°01'23.8" Sun Semi-Diameter 15'57.2" Sun Equatorial Horizontal Parallax 08.8" Moon Right Ascension 00h07m25.1s Moon Declination +01°56'11.3" Moon Semi-Diameter 16'01.1" Moon Equatorial Horizontal Parallax 0°58'47.2" ΔT 39.9 s
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. The first and last eclipse in this sequence is separated by one synodic month.
+ Eclipse season of August–September 1969 August 27Ascending node (full moon) September 11Descending node (new moon) September 25Ascending node (full moon) Penumbral lunar eclipseLunar Saros 108 Annular solar eclipseSolar Saros 134 Penumbral lunar eclipseLunar Saros 146
Related eclipses Eclipses in 1969 An annular solar eclipse on March 18. A penumbral lunar eclipse on April 2. A penumbral lunar eclipse on August 27. An annular solar eclipse on September 11. A penumbral lunar eclipse on September 25.
Metonic Preceded by: Lunar eclipse of December 8, 1965 Followed by: Lunar eclipse of July 15, 1973
Tzolkinex Preceded by: Lunar eclipse of August 15, 1962 Followed by: Lunar eclipse of November 6, 1976
Half-Saros Preceded by: Solar eclipse of September 20, 1960 Followed by: Solar eclipse of October 2, 1978
Tritos Preceded by: Lunar eclipse of October 27, 1958 Followed by: Lunar eclipse of August 26, 1980
Lunar Saros 146 Preceded by: Lunar eclipse of September 15, 1951 Followed by: Lunar eclipse of October 7, 1987
Inex Preceded by: Lunar eclipse of October 16, 1940 Followed by: Lunar eclipse of September 6, 1998
Triad Preceded by: Lunar eclipse of November 25, 1882 Followed by: Lunar eclipse of July 26, 2056
Lunar eclipses of 1966–1969
Saros 146
Tritos series
Inex series
Half-Saros cycle A lunar eclipse will be preceded and followed by solar eclipses by 9 years and 5.5 days (a half saros).Mathematical Astronomy Morsels, Jean Meeus, p.110, Chapter 18, The half-saros This lunar eclipse is related to two partial solar eclipses of Solar Saros 153.
September 20, 1960October 2, 1978
See also List of lunar eclipses List of 20th-century lunar eclipses
Notes
External links