January 2038 lunar eclipse
| Penumbral eclipse | |||||||||
| File:Lunar eclipse chart close-2038Jan21.png The Moon's hourly motion shown right to left | |||||||||
| Date | January 21, 2038 | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Gamma | 1.0710 | ||||||||
| Magnitude | −0.1127 | ||||||||
| Saros cycle | 144 (17 of 70) | ||||||||
| Penumbral | 245 minutes, 48 seconds | ||||||||
| |||||||||
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
[edit | edit source]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]
| File:Lunar eclipse from moon-2038Jan21.png File:Lunar eclipse chart close-2038Jan21.png |
Eclipse details
[edit | edit source]Shown below is a table displaying details about this particular solar eclipse. It describes various parameters pertaining to this eclipse.[4]
| 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
[edit | edit source]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.
| January 5 Descending node (new moon) |
January 21 Ascending node (full moon) |
|---|---|
| File:SE2038Jan05A.png | File:Lunar eclipse chart close-2038Jan21.png |
| Annular solar eclipse Solar Saros 132 |
Penumbral lunar eclipse Lunar Saros 144 |
Related eclipses
[edit | edit source]Eclipses in 2038
[edit | edit source]- 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
[edit | edit source]- Preceded by: Lunar eclipse of April 3, 2034
- Followed by: Lunar eclipse of November 8, 2041
Tzolkinex
[edit | edit source]- Preceded by: Lunar eclipse of December 9, 2030
- Followed by: Lunar eclipse of March 3, 2045
Half-Saros
[edit | edit source]- Preceded by: Solar eclipse of January 14, 2029
- Followed by: Solar eclipse of January 26, 2047
Tritos
[edit | edit source]- Preceded by: Lunar eclipse of February 20, 2027
- Followed by: Lunar eclipse of December 20, 2048
Lunar Saros 144
[edit | edit source]- Preceded by: Lunar eclipse of January 10, 2020
- Followed by: Lunar eclipse of February 1, 2056
Inex
[edit | edit source]- Preceded by: Lunar eclipse of February 9, 2009
- Followed by: Lunar eclipse of December 31, 2066
Triad
[edit | edit source]- Preceded by: Lunar eclipse of March 23, 1951
- Followed by: Lunar eclipse of November 21, 2124
Lunar eclipses of 2035–2038
[edit | edit source]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.
Saros 144
[edit | edit source]This eclipse is a part of Saros series 144, repeating every 18 years, 11 days, and containing 71 events. The series started with a penumbral lunar eclipse on July 29, 1749. It contains partial eclipses from March 28, 2146 through June 23, 2290; total eclipses from July 4, 2308 through January 28, 2651; and a second set of partial eclipses from February 8, 2669 through June 8, 2867. The series ends at member 71 as a penumbral eclipse on September 4, 3011.
The longest duration of totality will be produced by member 38 at 104 minutes, 53 seconds on September 7, 2416. All eclipses in this series occur at the Moon’s ascending node of orbit.[6]
| Greatest | First | |||
|---|---|---|---|---|
| The greatest eclipse of the series will occur on 2416 Sep 07, lasting 104 minutes, 53 seconds.[7] | Penumbral | Partial | Total | Central |
| 1749 Jul 29 |
2146 Mar 28 |
2308 Jul 04 |
2362 Aug 06 | |
| Last | ||||
| Central | Total | Partial | Penumbral | |
| 2488 Oct 20 |
2651 Jan 28 |
2867 Jun 08 |
3011 Sep 04 | |
Eclipses are tabulated in three columns; every third eclipse in the same column is one exeligmos apart, so they all cast shadows over approximately the same parts of the Earth.
Tritos series
[edit | edit source]This eclipse is a part of a tritos cycle, repeating at alternating nodes every 135 synodic months (≈ 3986.63 days, or 11 years minus 1 month). Their appearance and longitude are irregular due to a lack of synchronization with the anomalistic month (period of perigee), but groupings of 3 tritos cycles (≈ 33 years minus 3 months) come close (≈ 434.044 anomalistic months), so eclipses are similar in these groupings.
Inex series
[edit | edit source]This eclipse is a part of the long period inex cycle, repeating at alternating nodes, every 358 synodic months (≈ 10,571.95 days, or 29 years minus 20 days). Their appearance and longitude are irregular due to a lack of synchronization with the anomalistic month (period of perigee). However, groupings of 3 inex cycles (≈ 87 years minus 2 months) comes close (≈ 1,151.02 anomalistic months), so eclipses are similar in these groupings.
| Series members between 1801 and 2200 | |||||
|---|---|---|---|---|---|
| 1806 Jun 30 (Saros 136) |
1835 Jun 10 (Saros 137) |
1864 May 21 (Saros 138) | |||
| 1893 Apr 30 (Saros 139) |
1922 Apr 11 (Saros 140) |
1951 Mar 23 (Saros 141) | |||
| File:Lunar eclipse chart close-1922Apr11.png | File:Lunar eclipse from moon-1922Apr11.png | File:Lunar eclipse chart close-1951Mar23.png | File:Lunar eclipse from moon-1951Mar23.png | ||
| 1980 Mar 01 (Saros 142) |
2009 Feb 09 (Saros 143) |
2038 Jan 21 (Saros 144) | |||
| File:Lunar eclipse chart close-1980Mar01.png | File:Lunar eclipse from moon-1980Mar01.png | File:Lunar eclipse chart close-09feb09.png | File:Lunar eclipse from moon-2009Feb09.png | File:Lunar eclipse chart close-2038Jan21.png | File:Lunar eclipse from moon-2038Jan21.png |
| 2066 Dec 31 (Saros 145) |
2095 Dec 11 (Saros 146) |
2124 Nov 21 (Saros 147) | |||
| 2153 Nov 01 (Saros 148) |
2182 Oct 11 (Saros 149) | ||||
Half-Saros cycle
[edit | edit source]A lunar eclipse will be preceded and followed by solar eclipses by 9 years and 5.5 days (a half saros).[8] This lunar eclipse is related to two total solar eclipses of Solar Saros 151.
| January 14, 2029 | January 26, 2047 |
|---|---|
| File:SE2029Jan14P.png | File:SE2047Jan26P.png |
See also
[edit | edit source]Notes
[edit | edit source]- ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
- ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
- ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
- ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
- ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
- ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
- ^ Listing of Eclipses of series 144
- ^ Mathematical Astronomy Morsels, Jean Meeus, p.110, Chapter 18, The half-saros
External links
[edit | edit source]- 2038 Jan 21 chart: Eclipse Predictions by Fred Espenak, NASA/GSFC
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