A total lunar eclipse occurred at the Moon’s ascending node of orbit on Monday, September 15, 1913, with an umbral magnitude of 1.4304. It was a central lunar eclipse, in which part of the Moon passed through the center of the Earth's shadow. 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 30 minutes after apogee (on September 15, 1913, at 12:20 UTC), the Moon's apparent diameter was smaller.
Visibility The eclipse was completely visible over northeast Asia and Australia, seen rising over much of Asia and east Africa and setting over North America and western South America.
Eclipse details Shown below is a table displaying details about this particular solar eclipse. It describes various parameters pertaining to this eclipse.
+September 15, 1913 Lunar Eclipse Parameters Parameter Value Penumbral Magnitude 2.51225 Umbral Magnitude 1.43037 Gamma −0.21093 Sun Right Ascension 11h30m49.6s Sun Declination +03°09'08.3" Sun Semi-Diameter 15'54.6" Sun Equatorial Horizontal Parallax 08.7" Moon Right Ascension 23h31m11.8s Moon Declination -03°19'05.5" Moon Semi-Diameter 14'42.3" Moon Equatorial Horizontal Parallax 0°53'58.2" ΔT 15.4 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. The first and last eclipse in this sequence is separated by one synodic month.
+ Eclipse season of August–September 1913 August 31Descending node (new moon) September 15Ascending node (full moon) September 30Descending node (new moon) Partial solar eclipseSolar Saros 114 Total lunar eclipseLunar Saros 126 Partial solar eclipseSolar Saros 152
Related eclipses Eclipses in 1913 A total lunar eclipse on March 22. A partial solar eclipse on April 6. A partial solar eclipse on August 31. A total lunar eclipse on September 15. A partial solar eclipse on September 30.
Metonic Preceded by: Lunar eclipse of November 27, 1909 Followed by: Lunar eclipse of July 4, 1917
Tzolkinex Preceded by: Lunar eclipse of August 4, 1906 Followed by: Lunar eclipse of October 27, 1920
Half-Saros Preceded by: Solar eclipse of September 9, 1904 Followed by: Solar eclipse of September 21, 1922
Tritos Preceded by: Lunar eclipse of October 17, 1902 Followed by: Lunar eclipse of August 14, 1924
Lunar Saros 126 Preceded by: Lunar eclipse of September 4, 1895 Followed by: Lunar eclipse of September 26, 1931
Inex Preceded by: Lunar eclipse of October 4, 1884 Followed by: Lunar eclipse of August 26, 1942
Triad Preceded by: Lunar eclipse of November 14, 1826 Followed by: Lunar eclipse of July 16, 2000
Lunar eclipses of 1912–1915 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 eclipses on January 31, 1915 and July 26, 1915 occur in the next lunar year eclipse set.
Lunar eclipse series sets from 1912 to 1915 Descending node Ascending node Saros DateViewing TypeChart Gamma Saros DateViewing TypeChart Gamma 111 1912 Apr 01Partial 0.9116 116 1912 Sep 26Partial −0.9320 121 1913 Mar 22Total 0.1671 126 1913 Sep 15Total −0.2109 131 1914 Mar 12Partial −0.5254 136 1914 Sep 04Partial 0.5301 141 1915 Mar 01Penumbral −1.2573 146 1915 Aug 24Penumbral 1.2435
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. September 9, 1904September 21, 1922
See also List of lunar eclipses List of 20th-century lunar eclipses
Notes
External links