August 1952 lunar eclipse

{{Infobox lunar eclipse

| type = partial

| image = Lunar eclipse chart close-1952Aug05.png

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

| date = August 5, 1952

| gamma = −0.7384

| magnitude = 0.5318

| saros_ser = 118

| saros_no = 48 of 74

| partiality = 147 minutes, 10 seconds

| penumbral = 278 minutes, 22 seconds

| p1 = 17:28:13

| u1 = 18:33:49

| greatest = 19:47:25

| u4 = 21:01:00

| p4 = 22:06:35

| previous = February 1952

| next = January 1953

}}

A partial lunar eclipse occurred at the Moon’s ascending node of orbit on Tuesday, August 5, 1952,{{cite web|title=August 5–6, 1952 Partial Lunar Eclipse|url=https://www.timeanddate.com/eclipse/lunar/1952-august-5|publisher=timeanddate|access-date=22 December 2024}} with an umbral magnitude of 0.5318. 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 only about 1.5 hours before perigee (on August 5, 1952, at 21:25 UTC), the Moon's apparent diameter was larger.{{cite web|title=Moon Distances for London, United Kingdom, England|url=https://www.timeanddate.com/astronomy/moon/distance.html?year=1952&n=136|publisher=timeanddate|access-date=22 December 2024}}

Visibility

The eclipse was completely visible over east Africa, much of Asia, western Australia, and Antarctica, seen rising over west Africa, Europe, and eastern South America and setting over northeast Asia and eastern Australia.{{cite web|title=Partial Lunar Eclipse of 1952 Aug 05|url=https://eclipse.gsfc.nasa.gov/LEplot/LEplot1951/LE1952Aug05P.pdf|publisher=NASA|access-date=22 December 2024}}

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Eclipse details

Shown below is a table displaying details about this particular lunar eclipse. It describes various parameters pertaining to this eclipse.{{cite web|title=Partial Lunar Eclipse of 1952 Aug 05|url=https://eclipsewise.com/lunar/LEprime/1901-2000/LE1952Aug05Pprime.html|publisher=EclipseWise.com|access-date=22 December 2024}}

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|+August 5, 1952 Lunar Eclipse Parameters

! Parameter

! Value

Penumbral Magnitude

| 1.47418

Umbral Magnitude

| 0.53177

Gamma

| −0.73835

Sun Right Ascension

| 09h03m03.1s

Sun Declination

| +16°50'04.8"

Sun Semi-Diameter

| 15'46.2"

Sun Equatorial Horizontal Parallax

| 08.7"

Moon Right Ascension

| 21h04m14.8s

Moon Declination

| -17°32'03.6"

Moon Semi-Diameter

| 16'44.0"

Moon Equatorial Horizontal Parallax

| 1°01'24.7"

ΔT

| 30.1 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.

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|+ Eclipse season of August 1952

! August 5
Ascending node (full moon) !! August 20
Descending node (new moon)

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| Partial lunar eclipse
Lunar Saros 118

Annular solar eclipse
Solar Saros 144

Related eclipses

= Eclipses in 1952 =

A partial lunar eclipse on February 11.
A total solar eclipse on February 25.
A partial lunar eclipse on August 5.
An annular solar eclipse on August 20.

= Metonic =

Preceded by: Lunar eclipse of October 18, 1948
Followed by: Lunar eclipse of May 24, 1956

= Tzolkinex =

Preceded by: Lunar eclipse of June 25, 1945
Followed by: Lunar eclipse of September 17, 1959

= Half-Saros =

Preceded by: Solar eclipse of August 1, 1943
Followed by: Solar eclipse of August 11, 1961

= Tritos =

Preceded by: Lunar eclipse of September 5, 1941
Followed by: Lunar eclipse of July 6, 1963

= Lunar Saros 118 =

Preceded by: Lunar eclipse of July 26, 1934
Followed by: Lunar eclipse of August 17, 1970

= Inex =

Preceded by: Lunar eclipse of August 26, 1923
Followed by: Lunar eclipse of July 17, 1981

= Triad =

Preceded by: Lunar eclipse of October 4, 1865
Followed by: Lunar eclipse of June 6, 2039

= Lunar eclipses of 1951–1955 =

= Saros 118 =

= 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 annular solar eclipses of Solar Saros 125.

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