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 | ||||||||||||
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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
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
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 | 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
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) |
|---|---|
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| Partial lunar eclipse Lunar Saros 115 |
Annular solar eclipse Solar Saros 141 |
Related eclipses
Eclipses in 2046
- 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
- Preceded by: Lunar eclipse of April 5, 2042
- Followed by: Lunar eclipse of November 9, 2049
Tzolkinex
- Preceded by: Lunar eclipse of December 11, 2038
- Followed by: Lunar eclipse of March 4, 2053
Half-Saros
- Preceded by: Solar eclipse of January 16, 2037
- Followed by: Solar eclipse of January 27, 2055
Tritos
- Preceded by: Lunar eclipse of February 22, 2035
- Followed by: Lunar eclipse of December 22, 2056
Lunar Saros 115
- Preceded by: Lunar eclipse of January 12, 2028
- Followed by: Lunar eclipse of February 2, 2064
Inex
- Preceded by: Lunar eclipse of February 11, 2017
- Followed by: Lunar eclipse of January 2, 2075
Triad
- Preceded by: Lunar eclipse of March 24, 1959
- Followed by: Lunar eclipse of November 23, 2132
Lunar eclipses of 2046–2049
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.
| Lunar eclipse series sets from 2046 to 2049 | ||||||||
|---|---|---|---|---|---|---|---|---|
| Descending node | Ascending node | |||||||
| Saros | Date Viewing |
Type Chart |
Gamma | Saros | Date Viewing |
Type Chart |
Gamma | |
| 115 | 2046 Jan 22
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Partial
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0.9885 | 120 | 2046 Jul 18
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Partial
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−0.8691 | |
| 125 | 2047 Jan 12
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Total
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0.3317 | 130 | 2047 Jul 07
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Total
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−0.0636 | |
| 135 | 2048 Jan 01
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Total
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−0.3745 | 140 | 2048 Jun 26
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Partial
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0.6796 | |
| 145 | 2048 Dec 20
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Penumbral
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−1.0624 | 150 | 2049 Jun 15
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Penumbral
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1.4068 | |
Saros 115
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.
| Series members 46–67 occur between 1801 and 2200: | |||||
|---|---|---|---|---|---|
| 46 | 47 | 48 | |||
| 1811 Sep 02 | 1829 Sep 13 | 1847 Sep 24 | |||
| 49 | 50 | 51 | |||
| 1865 Oct 04 | 1883 Oct 16 | 1901 Oct 27 | |||
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| 52 | 53 | 54 | |||
| 1919 Nov 07 | 1937 Nov 18 | 1955 Nov 29 | |||
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| 55 | 56 | 57 | |||
| 1973 Dec 10 | 1991 Dec 21 | 2009 Dec 31 | |||
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| 58 | 59 | 60 | |||
| 2028 Jan 12 | 2046 Jan 22 | 2064 Feb 02 | |||
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| 61 | 62 | 63 | |||
| 2082 Feb 13 | 2100 Feb 24 | 2118 Mar 07 | |||
| 64 | 65 | 66 | |||
| 2136 Mar 18 | 2154 Mar 29 | 2172 Apr 09 | |||
| 67 | |||||
| 2190 Apr 20 | |||||
Tritos series
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.
| Series members between 1904 and 2200 | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| 1904 Mar 02 (Saros 102) |
1915 Jan 31 (Saros 103) |
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| 1969 Aug 27 (Saros 108) |
1980 Jul 27 (Saros 109) |
1991 Jun 27 (Saros 110) |
2002 May 26 (Saros 111) | ||||||
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| 2013 Apr 25 (Saros 112) |
2024 Mar 25 (Saros 113) |
2035 Feb 22 (Saros 114) |
2046 Jan 22 (Saros 115) |
2056 Dec 22 (Saros 116) | |||||
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| 2067 Nov 21 (Saros 117) |
2078 Oct 21 (Saros 118) |
2089 Sep 19 (Saros 119) |
2100 Aug 19 (Saros 120) |
2111 Jul 21 (Saros 121) | |||||
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| 2122 Jun 20 (Saros 122) |
2133 May 19 (Saros 123) |
2144 Apr 18 (Saros 124) |
2155 Mar 19 (Saros 125) |
2166 Feb 15 (Saros 126) | |||||
| 2177 Jan 14 (Saros 127) |
2187 Dec 15 (Saros 128) |
2198 Nov 13 (Saros 129) | |||||||
Half-Saros cycle
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 |
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See also
Notes
- ^ "January 22–23, 2046 Partial Lunar Eclipse". timeanddate. Retrieved 6 December 2024.
- ^ "Moon Distances for London, United Kingdom, England". timeanddate. Retrieved 6 December 2024.
- ^ "Partial Lunar Eclipse of 2046 Jan 22" (PDF). NASA. Retrieved 6 December 2024.
- ^ "Partial Lunar Eclipse of 2046 Jan 22". EclipseWise.com. Retrieved 6 December 2024.
- ^ 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.
- ^ "NASA - Catalog of Lunar Eclipses of Saros 115". eclipse.gsfc.nasa.gov.
- ^ Listing of Eclipses of series 115
- ^ Mathematical Astronomy Morsels, Jean Meeus, p.110, Chapter 18, The half-saros
External links
- 2046 Jan 22 chart: Eclipse Predictions by Fred Espenak, NASA/GSFC
