# January 2028 lunar eclipse

A partial lunar eclipse will occur at the Moon’s descending node of orbit on Wednesday, January 12, 2028, with an umbral magnitude of 0.0679. 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 only about 22.5 hours before perigee (on January 13, 2028, at 2:45 UTC), the Moon's apparent diameter will be larger.

## Visibility

The eclipse will be completely visible over North and South America, west Africa, and Europe, seen rising over the central Pacific Ocean and setting over central and east Africa and west and central Asia.

## Eclipse details

Shown below is a table displaying details about this particular solar eclipse. It describes various parameters pertaining to this eclipse.
January 12, 2028 Lunar Eclipse Parameters :
| Parameter | Value |
| Penumbral Magnitude | 1.04848 |
| Umbral Magnitude | 0.06787 |
| Gamma | 0.98177 |
| Sun Right Ascension | 19h32m47.8s |
| Sun Declination | -21°43'29.4" |
| Sun Semi-Diameter | 16'15.8" |
| Sun Equatorial Horizontal Parallax | 08.9" |
| Moon Right Ascension | 07h33m53.0s |
| Moon Declination | +22°41'18.2" |
| Moon Semi-Diameter | 16'35.1" |
| Moon Equatorial Horizontal Parallax | 1°00'52.0" |
| ΔT | 73.0 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.
Eclipse season of January 2028 :
| January 12 Descending node (full moon) | January 26 Ascending node (new moon) |
| Partial lunar eclipse Lunar Saros 115 | Annular solar eclipse Solar Saros 141 |

## Related eclipses
### Eclipses in 2028

* A partial lunar eclipse on January 12.
* An annular solar eclipse on January 26.
* A partial lunar eclipse on July 6.
* A total solar eclipse on July 22.
* A total lunar eclipse on December 31.

### Metonic

* Preceded by: Lunar eclipse of March 25, 2024
* Followed by: Lunar eclipse of October 30, 2031

### Tzolkinex

* Preceded by: Lunar eclipse of November 30, 2020
* Followed by: Lunar eclipse of February 22, 2035

### Half-Saros

* Preceded by: Solar eclipse of January 6, 2019
* Followed by: Solar eclipse of January 16, 2037

### Tritos

* Preceded by: Lunar eclipse of February 11, 2017
* Followed by: Lunar eclipse of December 11, 2038

### Lunar Saros 115

* Preceded by: Lunar eclipse of December 31, 2009
* Followed by: Lunar eclipse of January 22, 2046

### Inex

* Preceded by: Lunar eclipse of January 31, 1999
* Followed by: Lunar eclipse of December 22, 2056

### Triad

* Preceded by: Lunar eclipse of March 13, 1941
* Followed by: Lunar eclipse of November 12, 2114

### Lunar eclipses of 2027–2031

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.
The penumbral lunar eclipses on February 20, 2027 and August 17, 2027 occur in the previous lunar year eclipse set, and the penumbral lunar eclipses on May 7, 2031 and October 30, 2031 occur in the next lunar year eclipse set.
Lunar eclipse series sets from 2027 to 2031 :
| Ascending node | Ascending node | Ascending node | Ascending node | Descending node | Descending node | Descending node | Descending node |
| Saros | Date Viewing | Type Chart | Gamma | Saros | Date Viewing | Type Chart | Gamma |
| 110 | 2027 Jul 18 | Penumbral | −1.5759 | 115 | 2028 Jan 12 | Partial | 0.9818 |
| 120 | 2028 Jul 06 | Partial | −0.7904 | 125 | 2028 Dec 31 | Total | 0.3258 |
| 130 | 2029 Jun 26 | Total | 0.0124 | 135 | 2029 Dec 20 | Total | −0.3811 |
| 140 | 2030 Jun 15 | Partial | 0.7535 | 145 | 2030 Dec 09 | Penumbral | −1.0732 |
| 150 | 2031 Jun 05 | Penumbral | 1.4732 |

### 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.
| Greatest | First | First | First | First |
| The greatest eclipse of the series occurred on 1631 May 15, lasting 99 minutes, 47 seconds. | Penumbral | Partial | Total | Central |
| The greatest eclipse of the series occurred on 1631 May 15, lasting 99 minutes, 47 seconds. | 1000 Apr 21 | 1126 Jul 06 | 1288 Oct 11 | 1541 Mar 12 |
| Last ||||
| The greatest eclipse of the series occurred on 1631 May 15, lasting 99 minutes, 47 seconds. | Central | Total | Partial | Penumbral |
| The greatest eclipse of the series occurred on 1631 May 15, lasting 99 minutes, 47 seconds. | 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 | 46 | 47 | 47 | 48 | 48 |
| 1811 Sep 02 | 1811 Sep 02 | 1829 Sep 13 | 1829 Sep 13 | 1847 Sep 24 | 1847 Sep 24 |
| 49 | 49 | 50 | 50 | 51 | 51 |
| 1865 Oct 04 | 1865 Oct 04 | 1883 Oct 16 | 1883 Oct 16 | 1901 Oct 27 | 1901 Oct 27 |
| 52 | 52 | 53 | 53 | 54 | 54 |
| 1919 Nov 07 | 1919 Nov 07 | 1937 Nov 18 | 1937 Nov 18 | 1955 Nov 29 | 1955 Nov 29 |
| 55 | 55 | 56 | 56 | 57 | 57 |
| 1973 Dec 10 | 1973 Dec 10 | 1991 Dec 21 | 1991 Dec 21 | 2009 Dec 31 | 2009 Dec 31 |
| 58 | 58 | 59 | 59 | 60 | 60 |
| 2028 Jan 12 | 2028 Jan 12 | 2046 Jan 22 | 2046 Jan 22 | 2064 Feb 02 | 2064 Feb 02 |
| 61 | 61 | 62 | 62 | 63 | 63 |
| 2082 Feb 13 | 2082 Feb 13 | 2100 Feb 24 | 2100 Feb 24 | 2118 Mar 07 | 2118 Mar 07 |
| 64 | 64 | 65 | 65 | 66 | 66 |
| 2136 Mar 18 | 2136 Mar 18 | 2154 Mar 29 | 2154 Mar 29 | 2172 Apr 09 | 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 1886 and 2200 :
| 1886 Feb 18 (Saros 102) | 1886 Feb 18 (Saros 102) | 1897 Jan 18 (Saros 103) | 1897 Jan 18 (Saros 103) | | | | | | |
| | | 1951 Aug 17 (Saros 108) | 1951 Aug 17 (Saros 108) | 1962 Jul 17 (Saros 109) | 1962 Jul 17 (Saros 109) | 1973 Jun 15 (Saros 110) | 1973 Jun 15 (Saros 110) | 1984 May 15 (Saros 111) | 1984 May 15 (Saros 111) |
| 1995 Apr 15 (Saros 112) | 1995 Apr 15 (Saros 112) | 2006 Mar 14 (Saros 113) | 2006 Mar 14 (Saros 113) | 2017 Feb 11 (Saros 114) | 2017 Feb 11 (Saros 114) | 2028 Jan 12 (Saros 115) | 2028 Jan 12 (Saros 115) | 2038 Dec 11 (Saros 116) | 2038 Dec 11 (Saros 116) |
| 2049 Nov 09 (Saros 117) | 2049 Nov 09 (Saros 117) | 2060 Oct 09 (Saros 118) | 2060 Oct 09 (Saros 118) | 2071 Sep 09 (Saros 119) | 2071 Sep 09 (Saros 119) | 2082 Aug 08 (Saros 120) | 2082 Aug 08 (Saros 120) | 2093 Jul 08 (Saros 121) | 2093 Jul 08 (Saros 121) |
| 2104 Jun 08 (Saros 122) | 2104 Jun 08 (Saros 122) | 2115 May 08 (Saros 123) | 2115 May 08 (Saros 123) | 2126 Apr 07 (Saros 124) | 2126 Apr 07 (Saros 124) | 2137 Mar 07 (Saros 125) | 2137 Mar 07 (Saros 125) | 2148 Feb 04 (Saros 126) | 2148 Feb 04 (Saros 126) |
| 2159 Jan 04 (Saros 127) | 2159 Jan 04 (Saros 127) | 2169 Dec 04 (Saros 128) | 2169 Dec 04 (Saros 128) | 2180 Nov 02 (Saros 129) | 2180 Nov 02 (Saros 129) | 2191 Oct 02 (Saros 130) | 2191 Oct 02 (Saros 130) |

### Inex series

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 :
| 1825 Jun 01 (Saros 108) | 1825 Jun 01 (Saros 108) | 1854 May 12 (Saros 109) | 1854 May 12 (Saros 109) | 1883 Apr 22 (Saros 110) | 1883 Apr 22 (Saros 110) |
| 1912 Apr 01 (Saros 111) | 1912 Apr 01 (Saros 111) | 1941 Mar 13 (Saros 112) | 1941 Mar 13 (Saros 112) | 1970 Feb 21 (Saros 113) | 1970 Feb 21 (Saros 113) |
| 1999 Jan 31 (Saros 114) | 1999 Jan 31 (Saros 114) | 2028 Jan 12 (Saros 115) | 2028 Jan 12 (Saros 115) | 2056 Dec 22 (Saros 116) | 2056 Dec 22 (Saros 116) |
| 2085 Dec 01 (Saros 117) | 2085 Dec 01 (Saros 117) | 2114 Nov 12 (Saros 118) | 2114 Nov 12 (Saros 118) | 2143 Oct 23 (Saros 119) | 2143 Oct 23 (Saros 119) |
| 2172 Oct 02 (Saros 120) ||

### Half-Saros cycle

A lunar eclipse will be preceded and followed by solar eclipses by 9 years and 5.5 days (a half saros). This lunar eclipse is related to two partial solar eclipses of Solar Saros 122.
| January 6, 2019 | January 16, 2037 |