January 1934 lunar eclipse

{{Infobox lunar eclipse

| type = partial

| image = Lunar eclipse chart close-1934Jan30.png

| caption = The Moon's hourly motion shown right to left

| date = January 30, 1934

| gamma = 0.9258

| magnitude = 0.1120

| saros_ser = 113

| saros_no = 59 of 71

| partiality = 80 minutes, 55 seconds

| penumbral = 304 minutes, 16 seconds

| p1 = 14:10:10

| u1 = 16:01:54

| greatest = 16:42:18

| u4 = 17:22:49

| p4 = 19:14:26

| previous = September 1933

| next = July 1934

}}

A partial lunar eclipse occurred at the Moon’s descending node of orbit on Tuesday, January 30, 1934,{{cite web|title=January 30–31, 1934 Partial Lunar Eclipse|url=https://www.timeanddate.com/eclipse/lunar/1934-january-30|publisher=timeanddate|access-date=17 December 2024}} with an umbral magnitude of 0.1120. 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 2.9 days after apogee (on January 27, 1934, at 18:55 UTC), the Moon's apparent diameter was smaller.{{cite web|title=Moon Distances for London, United Kingdom, England|url=https://www.timeanddate.com/astronomy/moon/distance.html?year=1934&n=136|publisher=timeanddate|access-date=17 December 2024}}

Visibility

The eclipse was completely visible over Asia and Australia, seen rising over Africa and Europe and setting over western North America and the central Pacific Ocean.{{cite web|title=Partial Lunar Eclipse of 1934 Jan 30|url=https://eclipse.gsfc.nasa.gov/LEplot/LEplot1901/LE1934Jan30P.pdf|publisher=NASA|access-date=17 December 2024}}

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Eclipse details

Shown below is a table displaying details about this particular solar eclipse. It describes various parameters pertaining to this eclipse.{{cite web|title=Partial Lunar Eclipse of 1934 Jan 30|url=https://eclipsewise.com/lunar/LEprime/1901-2000/LE1934Jan30Pprime.html|publisher=EclipseWise.com|access-date=17 December 2024}}

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|+January 30, 1934 Lunar Eclipse Parameters

! Parameter

! Value

Penumbral Magnitude

| 1.20734

Umbral Magnitude

| 0.11204

Gamma

| 0.92581

Sun Right Ascension

| 20h50m17.7s

Sun Declination

| -17°42'54.6"

Sun Semi-Diameter

| 16'14.0"

Sun Equatorial Horizontal Parallax

| 08.9"

Moon Right Ascension

| 08h51m34.9s

Moon Declination

| +18°29'48.4"

Moon Semi-Diameter

| 14'49.3"

Moon Equatorial Horizontal Parallax

| 0°54'23.7"

ΔT

| 23.8 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.

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|+ Eclipse season of January–February 1934

! January 30
Descending node (full moon)

February 14
Ascending node (new moon)

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| Partial lunar eclipse
Lunar Saros 113

Total solar eclipse
Solar Saros 139

Related eclipses

= Eclipses in 1934 =

A partial lunar eclipse on January 30.
A total solar eclipse on February 14.
A partial lunar eclipse on July 26.
An annular solar eclipse on August 10.

= Metonic =

Preceded by: Lunar eclipse of April 13, 1930
Followed by: Lunar eclipse of November 18, 1937

= Tzolkinex =

Preceded by: Lunar eclipse of December 19, 1926
Followed by: Lunar eclipse of March 13, 1941

= Half-Saros =

Preceded by: Solar eclipse of January 24, 1925
Followed by: Solar eclipse of February 4, 1943

= Tritos =

Preceded by: Lunar eclipse of March 3, 1923
Followed by: Lunar eclipse of December 29, 1944

= Lunar Saros 113 =

Preceded by: Lunar eclipse of January 20, 1916
Followed by: Lunar eclipse of February 11, 1952

= Inex =

Preceded by: Lunar eclipse of February 19, 1905
Followed by: Lunar eclipse of January 9, 1963

= Triad =

Preceded by: Lunar eclipse of March 31, 1847
Followed by: Lunar eclipse of November 30, 2020

= Lunar eclipses of 1933–1936 =

= Saros 113 =

= 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 120.

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