A partial lunar eclipse occurred at the Moon’s ascending node of orbit on Friday, November 19, 2021, with an umbral magnitude of 0.9760. A lunar eclipse occurs when the Moon moves into the Earth's shadow, causing the Moon to be darkened. A partial lunar eclipse occurs when one part of the Moon is in the Earth's umbra, while the other part is in 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 1.7 days before apogee (02:14 UTC, November 21), the Moon's apparent diameter was smaller than average.
This was the longest partial lunar eclipse since February 18, 1440, and the longest until February 8, 2669; however, many eclipses, including the November 2022 lunar eclipse, have a longer period of umbral contact at next to 3 hours 40 minutes.
This lunar eclipse was the second of an almost tetrad, with the others being on May 26, 2021 (total); May 16, 2022 (total); and November 8, 2022 (total).
Visibility The eclipse was completely visible over northeast Asia, the Pacific Ocean, and North America, seen rising over east Asia and Australia and setting over South America.
Visibility map
Gallery
Eclipse details Shown below is a table displaying details about this particular lunar eclipse. It describes various parameters pertaining to this eclipse.
+November 19, 2021 Lunar Eclipse Parameters Parameter Value Penumbral Magnitude 2.07381 Umbral Magnitude 0.97595 Gamma −0.45525 Sun Right Ascension 15h 39m 50.9s Sun Declination −19° 32 33.1 Sun Semi-Diameter 16 11.0 Sun Equatorial Horizontal Parallax 08.9 Moon Right Ascension 03h 40m 24.8s Moon Declination +19° 09 15.5 Moon Semi-Diameter 14 44.5 Moon Equatorial Horizontal Parallax 0° 54 06.1 ΔT 69.3 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–December 2021 November 19Ascending node (full moon) December 4Descending node (new moon) Partial lunar eclipseLunar Saros 126 Total solar eclipseSolar Saros 152
Related eclipses Eclipses in 2021 A total lunar eclipse on May 26. An annular solar eclipse on June 10. A partial lunar eclipse on November 19. A total solar eclipse on December 4.
Metonic Preceded by: Lunar eclipse of January 31, 2018 Followed by: Lunar eclipse of September 7, 2025
Tzolkinex Preceded by: Lunar eclipse of October 8, 2014 Followed by: Lunar eclipse of December 31, 2028
Half-Saros Preceded by: Solar eclipse of November 13, 2012 Followed by: Solar eclipse of November 25, 2030
Tritos Preceded by: Lunar eclipse of December 21, 2010 Followed by: Lunar eclipse of October 18, 2032
Lunar Saros 126 Preceded by: Lunar eclipse of November 9, 2003 Followed by: Lunar eclipse of November 30, 2039
Inex Preceded by: Lunar eclipse of December 9, 1992 Followed by: Lunar eclipse of October 30, 2050
Triad Preceded by: Lunar eclipse of January 19, 1935 Followed by: Lunar eclipse of September 20, 2108
Lunar eclipses of 2020–2023
Metonic series First eclipse: November 20, 2002. Second eclipse: November 19, 2021. Third eclipse: November 18, 2040. Fourth eclipse: November 19, 2059. Fifth eclipse: November 19, 2078.
Saros 126
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 133. November 13, 2012November 25, 2030
See also List of 21st-century lunar eclipses List of lunar eclipses November 2022 lunar eclipse
References
External links
Saros cycle 126