A total lunar eclipse will occur at the Moon’s descending node of orbit on Friday, September 8, 2090, with an umbral magnitude of 1.0387. 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 only about 12 hours before apogee (on September 9, 2090, at 11:00 UTC), the Moon's apparent diameter will be smaller.
This lunar eclipse will be the second of a tetrad, with four total lunar eclipses in series, the others being on March 15, 2090; March 5, 2091; and August 29, 2091.
This will the final total lunar eclipse of Lunar Saros 129.
Visibility The eclipse will be completely visible over Africa, Europe, and the Middle East, seen rising over North and South America and setting over central, south Asia, and east 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 8, 2090 Lunar Eclipse Parameters Parameter Value Penumbral Magnitude 2.11781 Umbral Magnitude 1.03874 Gamma 0.42572 Sun Right Ascension 11h11m25.3s Sun Declination +05°12'29.2" Sun Semi-Diameter 15'52.5" Sun Equatorial Horizontal Parallax 08.7" Moon Right Ascension 23h10m58.1s Moon Declination -04°50'31.3" Moon Semi-Diameter 14'42.7" Moon Equatorial Horizontal Parallax 0°53'59.5" ΔT 117.7 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 September 2090 September 8Descending node (full moon) September 23Ascending node (new moon) Total lunar eclipseLunar Saros 129 Total solar eclipseSolar Saros 155
Related eclipses Eclipses in 2090 A total lunar eclipse on March 15. A partial solar eclipse on March 31. A total lunar eclipse on September 8. A total solar eclipse on September 23.
Metonic Preceded by: Lunar eclipse of November 20, 2086 Followed by: Lunar eclipse of June 28, 2094
Tzolkinex Preceded by: Lunar eclipse of July 28–29, 2083 Followed by: Lunar eclipse of October 20–21, 2097
Half-Saros Preceded by: Solar eclipse of September 3, 2081 Followed by: Solar eclipse of September 14, 2099
Tritos Preceded by: Lunar eclipse of October 10, 2079 Followed by: Lunar eclipse of August 9, 2101
Lunar Saros 129 Preceded by: Lunar eclipse of August 28, 2072 Followed by: Lunar eclipse of September 20, 2108
Inex Preceded by: Lunar eclipse of September 29, 2061 Followed by: Lunar eclipse of August 20, 2119
Triad Preceded by: Lunar eclipse of November 9, 2003 Followed by: Lunar eclipse of July 11, 2177
Lunar eclipses of 2089–2092 This eclipse is a member of a semester series. An eclipse in a semester series of lunar eclipses repeats approximately every 177 days and 4 hours (a semester) at alternating nodes of the Moon's orbit.
The penumbral lunar eclipse on July 19, 2092 occurs in the next lunar year eclipse set.
Lunar eclipse series sets from 2089 to 2092 Ascending node Descending node Saros DateViewing TypeChart Gamma Saros DateViewing TypeChart Gamma 114 2089 Mar 26Penumbral −1.1038 119 2089 Sep 19Penumbral 1.1447 1242090 Mar 15Total −0.3674 129 2090 Sep 08Total 0.4257 134 2091 Mar 05Total 0.3212 139 2091 Aug 28–29Total −0.3270 144 2092 Feb 23Penumbral 1.0509 149 2092 Aug 17Penumbral −1.0568
Saros 129
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 136. September 3, 2081September 14, 2099
See also List of lunar eclipses and List of 21st-century lunar eclipses
Notes
External links