January 2038 lunar eclipse

January 2038 lunar eclipse
Penumbral eclipse
The Moon's hourly motion shown right to left
DateJanuary 21, 2038
Gamma1.0710
Magnitude−0.1127
Saros cycle144 (17 of 70)
Penumbral245 minutes, 48 seconds
Contacts (UTC)
P11:46:58
Greatest3:49:52
P45:52:46

A penumbral lunar eclipse will occur at the Moon’s ascending node of orbit on Thursday, January 21, 2038,[1] 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.[2]

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.[3]

Eclipse details

Shown below is a table displaying details about this particular solar eclipse. It describes various parameters pertaining to this eclipse.[4]

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

See also: Eclipse cycle

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 January 2038
January 5
Descending node (new moon)
 January 21
Ascending node (full moon)
Annular solar eclipse
Solar Saros 132		 Penumbral lunar eclipse
Lunar Saros 144

Eclipses in 2038

Metonic

Tzolkinex

Half-Saros

Tritos

Lunar Saros 144

Inex

Triad

Lunar eclipses of 2035–2038

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.[5]

The penumbral lunar eclipses on June 17, 2038 and December 11, 2038 occur in the next lunar year eclipse set.

Lunar eclipse series sets from 2035 to 2038
Ascending node   Descending node
Saros Date
Viewing 		Type
Chart 		Gamma Saros Date
Viewing 		Type
Chart 		Gamma
114 2035 Feb 22
 Penumbral
 −1.0357 119 2035 Aug 19
 Partial
 0.9433
124 2036 Feb 11
 Total
 −0.3110 129 2036 Aug 07
 Total
 0.2004
134 2037 Jan 31
 Total
 0.3619 139 2037 Jul 27
 Partial
 −0.5582
144 2038 Jan 21
 Penumbral
 1.0710 149 2038 Jul 16
 Penumbral
 −1.2837

Saros 144

Lunar Saros series 144, repeating every 18 years and 11 days, has a total of 71 lunar eclipse events including 20 total lunar eclipses.

First Penumbral Lunar Eclipse: 1749 Jul 29

First Partial Lunar Eclipse: 2146 Mar 28

First Total Lunar Eclipse: 2308 Jul 04

First Central Lunar Eclipse: 2362 Aug 06

Greatest Eclipse of the Lunar Saros 144: 2416 Sep 07

Last Central Lunar Eclipse: 2488 Oct 20

Last Total Lunar Eclipse: 2651 Jan 28

Last Partial Lunar Eclipse: 2867 Jun 08

Last Penumbral Lunar Eclipse: 3011 Sep 04

Half-Saros cycle

A lunar eclipse will be preceded and followed by solar eclipses by 9 years and 5.5 days (a half saros).[6] This lunar eclipse is related to two total solar eclipses of Solar Saros 151.

January 14, 2029 January 26, 2047

See also

Notes

  1. ^ "January 20–21, 2038 Penumbral Lunar Eclipse". timeanddate. Retrieved 29 November 2024.
  2. ^ "Moon Distances for London, United Kingdom, England". timeanddate. Retrieved 29 November 2024.
  3. ^ "Penumbral Lunar Eclipse of 2038 Jan 21" (PDF). NASA. Retrieved 29 November 2024.
  4. ^ "Penumbral Lunar Eclipse of 2038 Jan 21". EclipseWise.com. Retrieved 29 November 2024.
  5. ^ van Gent, R.H. "Solar- and Lunar-Eclipse Predictions from Antiquity to the Present". A Catalogue of Eclipse Cycles. Utrecht University. Retrieved 6 October 2018.
  6. ^ Mathematical Astronomy Morsels, Jean Meeus, p.110, Chapter 18, The half-saros