January 2038 lunar eclipse

{{Infobox lunar eclipse

| type = penumbral

| image = Lunar eclipse chart close-2038Jan21.png

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

| date = January 21, 2038

| gamma = 1.0710

| magnitude = −0.1127

| saros_ser = 144

| saros_no = 17 of 70

| totality =

| partiality =

| penumbral = 245 minutes, 48 seconds

| p1 = 1:46:58

| u1 =

| u2 =

| greatest = 3:49:52

| u3 =

| u4 =

| p4 = 5:52:46

| previous = July 2037

| next = June 2038

}}

A penumbral lunar eclipse will occur at the Moon’s ascending node of orbit on Thursday, January 21, 2038,{{cite web|title=January 20–21, 2038 Penumbral Lunar Eclipse|url=https://www.timeanddate.com/eclipse/lunar/2038-january-21|publisher=timeanddate|access-date=29 November 2024}} with an umbral magnitude of −0.1127. A lunar eclipse occurs when the Moon moves into the Earth's shadow, causing the Moon to be darkened. A penumbral lunar eclipse occurs when part or all of the Moon's near side passes into 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 3.1 days before perigee (on January 24, 2038, at 4:50 UTC), the Moon's apparent diameter will be larger.{{cite web|title=Moon Distances for London, United Kingdom, England|url=https://www.timeanddate.com/astronomy/moon/distance.html?year=2038&n=136|publisher=timeanddate|access-date=29 November 2024}}

This eclipse will be the first of four penumbral lunar eclipses in 2038, with the others occurring on June 17, July 16, and December 11.

Visibility

The eclipse will be completely visible over North and South America, west Africa, and Europe, seen rising over the eastern Pacific Ocean and setting over east Africa and west and central Asia.{{cite web|title=Penumbral Lunar Eclipse of 2038 Jan 21|url=https://eclipse.gsfc.nasa.gov/LEplot/LEplot2001/LE2038Jan21N.pdf|publisher=NASA|access-date=29 November 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=Penumbral Lunar Eclipse of 2038 Jan 21|url=https://eclipsewise.com/lunar/LEprime/2001-2100/LE2038Jan21Nprime.html|publisher=EclipseWise.com|access-date=29 November 2024}}

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|+January 21, 2038 Lunar Eclipse Parameters

! Parameter

! Value

Penumbral Magnitude

| 0.90085

Umbral Magnitude

| −0.11271

Gamma

| 1.07108

Sun Right Ascension

| 20h13m39.3s

Sun Declination

| -19°53'23.0"

Sun Semi-Diameter

| 16'15.2"

Sun Equatorial Horizontal Parallax

| 08.9"

Moon Right Ascension

| 08h14m12.5s

Moon Declination

| +20°55'55.8"

Moon Semi-Diameter

| 16'02.1"

Moon Equatorial Horizontal Parallax

| 0°58'51.1"

ΔT

| 78.0 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 2038

! January 5
Descending node (new moon)
!! January 21
Ascending node (full moon)

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| Annular solar eclipse
Solar Saros 132

Penumbral lunar eclipse
Lunar Saros 144

Related eclipses

= Eclipses in 2038 =

An annular solar eclipse on January 5.
A penumbral lunar eclipse on January 21.
A penumbral lunar eclipse on June 17.
An annular solar eclipse on July 2.
A penumbral lunar eclipse on July 16.
A penumbral lunar eclipse on December 11.
A total solar eclipse on December 26.

= Metonic =

Preceded by: Lunar eclipse of April 3, 2034
Followed by: Lunar eclipse of November 8, 2041

= Tzolkinex =

Preceded by: Lunar eclipse of December 9, 2030
Followed by: Lunar eclipse of March 3, 2045

= Half-Saros =

Preceded by: Solar eclipse of January 14, 2029
Followed by: Solar eclipse of January 26, 2047

= Tritos =

Preceded by: Lunar eclipse of February 20, 2027
Followed by: Lunar eclipse of December 20, 2048

= Lunar Saros 144 =

Preceded by: Lunar eclipse of January 10, 2020
Followed by: Lunar eclipse of February 1, 2056

= Inex =

Preceded by: Lunar eclipse of February 9, 2009
Followed by: Lunar eclipse of December 31, 2066

= Triad =

Preceded by: Lunar eclipse of March 23, 1951
Followed by: Lunar eclipse of November 21, 2124

= Lunar eclipses of 2035–2038 =

= Saros 144 =

= 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 151.

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