A total lunar eclipse occurred at the Moon’s descending node of orbit on Tuesday, November 18, 1975, with an umbral magnitude of 1.0642. 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 4.9 days after apogee (on November 14, 1975, at 0:00 UTC), the Moon's apparent diameter was smaller.
Visibility The eclipse was completely visible over Africa, Europe, and the western half of Asia, seen rising over North and South America and setting over east and southeast Asia, and Australia.
Eclipse details Shown below is a table displaying details about this particular lunar eclipse. It describes various parameters pertaining to this eclipse.
+November 18, 1975 Lunar Eclipse Parameters Parameter Value Penumbral Magnitude 2.13521 Umbral Magnitude 1.06421 Gamma −0.41343 Sun Right Ascension 15h34m32.1s Sun Declination -19°14'45.6" Sun Semi-Diameter 16'11.0" Sun Equatorial Horizontal Parallax 08.9" Moon Right Ascension 03h34m45.4s Moon Declination +18°52'03.2" Moon Semi-Diameter 15'06.6" Moon Equatorial Horizontal Parallax 0°55'27.2" ΔT 46.4 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.
+ Eclipse season of November 1975 November 3Ascending node (new moon) November 18Descending node (full moon) Partial solar eclipseSolar Saros 123 Total lunar eclipseLunar Saros 135
Related eclipses Eclipses in 1975 A partial solar eclipse on May 11. A total lunar eclipse on May 25. A partial solar eclipse on November 3. A total lunar eclipse on November 18.
Metonic Preceded by: Lunar eclipse of January 30, 1972 Followed by: Lunar eclipse of September 6, 1979
Tzolkinex Preceded by: Lunar eclipse of October 6, 1968 Followed by: Lunar eclipse of December 30, 1982
Half-Saros Preceded by: Solar eclipse of November 12, 1966 Followed by: Solar eclipse of November 22, 1984
Tritos Preceded by: Lunar eclipse of December 19, 1964 Followed by: Lunar eclipse of October 17, 1986
Lunar Saros 135 Preceded by: Lunar eclipse of November 7, 1957 Followed by: Lunar eclipse of November 29, 1993
Inex Preceded by: Lunar eclipse of December 8, 1946 Followed by: Lunar eclipse of October 28, 2004
Triad Preceded by: Lunar eclipse of January 17, 1889 Followed by: Lunar eclipse of September 18, 2062
Lunar eclipses of 1973–1976
Saros 135
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 total solar eclipses of Solar Saros 142. November 12, 1966November 22, 1984
See also List of lunar eclipses List of 20th-century lunar eclipses
Notes
External links