A partial lunar eclipse occurred at the Moon’s descending node of orbit on Sunday, April 13, 1930, with an umbral magnitude of 0.1065. 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 3.8 days after perigee (on April 9, 1930, at 11:20 UTC), the Moon's apparent diameter was larger.
Visibility The eclipse was completely visible over North and South America, seen rising over eastern Australia and the central Pacific Ocean and setting over much of Europe and Africa.
Eclipse details Shown below is a table displaying details about this particular solar eclipse. It describes various parameters pertaining to this eclipse.
+April 13, 1930 Lunar Eclipse Parameters Parameter Value Penumbral Magnitude 1.10669 Umbral Magnitude 0.10650 Gamma 0.95452 Sun Right Ascension 01h23m32.1s Sun Declination +08°47'25.3" Sun Semi-Diameter 15'56.9" Sun Equatorial Horizontal Parallax 08.8" Moon Right Ascension 13h25m16.0s Moon Declination -07°57'49.4" Moon Semi-Diameter 15'56.7" Moon Equatorial Horizontal Parallax 0°58'31.2" ΔT 24.1 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 April 1930 April 13Descending node (full moon) April 28Ascending node (new moon) Partial lunar eclipseLunar Saros 111 Hybrid solar eclipseSolar Saros 137
Related eclipses Eclipses in 1930 A partial lunar eclipse on April 13. A hybrid solar eclipse on April 28. A partial lunar eclipse on October 7. A total solar eclipse on October 21.
Metonic Preceded by: Lunar eclipse of June 25, 1926 Followed by: Lunar eclipse of January 30, 1934
Tzolkinex Preceded by: Lunar eclipse of March 3, 1923 Followed by: Lunar eclipse of May 25, 1937
Half-Saros Preceded by: Solar eclipse of April 8, 1921 Followed by: Solar eclipse of April 19, 1939
Tritos Preceded by: Lunar eclipse of May 15, 1919 Followed by: Lunar eclipse of March 13, 1941
Lunar Saros 111 Preceded by: Lunar eclipse of April 1, 1912 Followed by: Lunar eclipse of April 23, 1948
Inex Preceded by: Lunar eclipse of May 3, 1901 Followed by: Lunar eclipse of March 24, 1959
Triad Preceded by: Lunar eclipse of June 12, 1843 Followed by: Lunar eclipse of February 11, 2017
Lunar eclipses of 1930–1933
Saros 111
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 118. April 8, 1921April 19, 1939
See also List of lunar eclipses List of 20th-century lunar eclipses
Notes
External links