January 2046 lunar eclipse
| Partial eclipse | |||||||||||||
 The Moon's hourly motion shown right to left | |||||||||||||
| Date | January 22, 2046 | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Gamma | 0.9885 | ||||||||||||
| Magnitude | 0.0550 | ||||||||||||
| Saros cycle | 115 (59 of 72) | ||||||||||||
| Partiality | 50 minutes, 23 seconds | ||||||||||||
| Penumbral | 250 minutes, 1 second | ||||||||||||
| |||||||||||||
A partial lunar eclipse will occur at the Moon’s descending node of orbit on Monday, January 22, 2046,[1] with an umbral magnitude of 0.0550. 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 1.1 days before perigee (on January 23, 2046, at 14:00 UTC), the Moon's apparent diameter will be larger.[2]
Visibility
[edit | edit source]The eclipse will be completely visible over Australia, east and north Asia, and northwestern North America, seen rising over eastern Europe and west, central, and south Asia and setting over much of North America.[3]
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Eclipse details
[edit | edit source]Shown below is a table displaying details about this particular lunar eclipse. It describes various parameters pertaining to this eclipse.[4]
| Parameter | Value |
|---|---|
| Penumbral Magnitude | 1.03650 |
| Umbral Magnitude | 0.05499 |
| Gamma | 0.98859 |
| Sun Right Ascension | 20h19m45.5s |
| Sun Declination | -19°33'42.8" |
| Sun Semi-Diameter | 16'15.1" |
| Sun Equatorial Horizontal Parallax | 08.9" |
| Moon Right Ascension | 08h21m07.9s |
| Moon Declination | +20°30'34.8" |
| Moon Semi-Diameter | 16'33.4" |
| Moon Equatorial Horizontal Parallax | 1°00'46.0" |
| ΔT | 82.6 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 22 Descending node (full moon) |
February 5 Ascending node (new moon) |
|---|---|
| Error creating thumbnail: | File:SE2046Feb05A.png |
| Partial lunar eclipse Lunar Saros 115 |
Annular solar eclipse Solar Saros 141 |
Related eclipses
[edit | edit source]Eclipses in 2046
[edit | edit source]- A partial lunar eclipse on January 22.
- An annular solar eclipse on February 5.
- A partial lunar eclipse on July 18.
- A total solar eclipse on August 2.
Metonic
[edit | edit source]- Preceded by: Lunar eclipse of April 5, 2042
- Followed by: Lunar eclipse of November 9, 2049
Tzolkinex
[edit | edit source]- Preceded by: Lunar eclipse of December 11, 2038
- Followed by: Lunar eclipse of March 4, 2053
Half-Saros
[edit | edit source]- Preceded by: Solar eclipse of January 16, 2037
- Followed by: Solar eclipse of January 27, 2055
Tritos
[edit | edit source]- Preceded by: Lunar eclipse of February 22, 2035
- Followed by: Lunar eclipse of December 22, 2056
Lunar Saros 115
[edit | edit source]- Preceded by: Lunar eclipse of January 12, 2028
- Followed by: Lunar eclipse of February 2, 2064
Inex
[edit | edit source]- Preceded by: Lunar eclipse of February 11, 2017
- Followed by: Lunar eclipse of January 2, 2075
Triad
[edit | edit source]- Preceded by: Lunar eclipse of March 24, 1959
- Followed by: Lunar eclipse of November 23, 2132
Lunar eclipses of 2046–2049
[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 May 17, 2049 and November 9, 2049 occur in the next lunar year eclipse set.
Saros 115
[edit | edit source]This eclipse is a part of Saros series 115, repeating every 18 years, 11 days, and containing 72 events. The series started with a penumbral lunar eclipse on April 21, 1000. It contains partial eclipses from July 6, 1126 through September 30, 1270; total eclipses from October 11, 1288 through July 20, 1739; and a second set of partial eclipses from July 30, 1757 through February 13, 2082. The series ends at member 72 as a penumbral eclipse on June 13, 2280.
The longest duration of totality was produced by member 36 at 99 minutes, 47 seconds on May 15, 1631. All eclipses in this series occur at the Moon’s descending node of orbit.[6]
| Greatest | First | |||
|---|---|---|---|---|
| The greatest eclipse of the series occurred on 1631 May 15, lasting 99 minutes, 47 seconds.[7] | Penumbral | Partial | Total | Central |
| 1000 Apr 21 |
1126 Jul 06 |
1288 Oct 11 |
1541 Mar 12 | |
| Last | ||||
| Central | Total | Partial | Penumbral | |
| 1685 Jun 16 |
1739 Jul 20 |
2082 Feb 13 |
2280 Jun 13 | |
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 | |||||
|---|---|---|---|---|---|
| 1814 Jul 02 (Saros 107) |
1843 Jun 12 (Saros 108) |
1872 May 22 (Saros 109) | |||
| 1901 May 03 (Saros 110) |
1930 Apr 13 (Saros 111) |
1959 Mar 24 (Saros 112) | |||
| File:Lunar eclipse chart close-1901May03.png | File:Lunar eclipse from moon-1901May03.png | File:Lunar eclipse chart close-1930Apr13.png | File:Lunar eclipse from moon-1930Apr13.png | File:Lunar eclipse chart close-1959Mar24.png | File:Lunar eclipse from moon-1959Mar24.png |
| 1988 Mar 03 (Saros 113) |
2017 Feb 11 (Saros 114) |
2046 Jan 22 (Saros 115) | |||
| File:Lunar eclipse chart close-1988Mar03.png | File:Lunar eclipse from moon-1988Mar03.png | File:Lunar eclipse chart close-2017Feb11.png | File:Lunar eclipse from moon-2017Feb11.png | Error creating thumbnail: | Error creating thumbnail: |
| 2075 Jan 02 (Saros 116) |
2103 Dec 13 (Saros 117) |
2132 Nov 23 (Saros 118) | |||
| 2161 Nov 03 (Saros 119) |
2190 Oct 13 (Saros 120) | ||||
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 partial solar eclipses of Solar Saros 122.
| January 16, 2037 | January 27, 2055 |
|---|---|
| File:SE2037Jan16P.png | File:SE2055Jan27P.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 115
- ^ Mathematical Astronomy Morsels, Jean Meeus, p.110, Chapter 18, The half-saros
External links
[edit | edit source]- 2046 Jan 22 chart: Eclipse Predictions by Fred Espenak, NASA/GSFC
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