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December 2028 lunar eclipse
Total eclipse
	The Moon's hourly motion shown right to left
Date	December 31, 2028
Gamma	0.3258
Magnitude	1.2479
Saros cycle	125 (49 of 72)
Totality	71 minutes, 20 seconds
Partiality	208 minutes, 49 seconds
Penumbral	336 minutes, 13 seconds
P1
Contacts (UTC)
P1	14:03:49
U1	15:07:35
U2	16:16:19
Greatest	16:51:58
U3	17:27:40
U4	18:36:24
P4	19:40:02
	← July 2028 June 2029 →

A total lunar eclipse will occur at the Moon’s descending node of orbit on Sunday, December 31, 2028,^[1] with an umbral magnitude of 1.2479. A lunar eclipse occurs when the Moon moves into the Earth's shadow, causing the Moon to be darkened. A total lunar eclipse occurs when the Moon's near side entirely passes into the Earth's umbral shadow. 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. A total lunar eclipse can last up to nearly two hours, while a total solar eclipse lasts only a few minutes at any given place, because the Moon's shadow is smaller. Occurring about 4.3 days before perigee (on January 4, 2029, at 23:15 UTC), the Moon's apparent diameter will be larger.^[2]

This eclipse will occur during a blue moon and is the first such eclipse to happen on New Year's Eve and New Year's Day since December 2009, and the first total lunar eclipse on New Year's Day in history. The next such eclipse will be in December 2047 (though January 2048 for most timezones).

Visibility

The eclipse will be completely visible over eastern Europe, Asia, and Australia, seen rising over Africa and Europe and setting over the eastern Pacific Ocean and western North America.^[3]

Eclipse details

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

December 31, 2028 Lunar Eclipse Parameters
Parameter	Value
Penumbral Magnitude	2.27579
Umbral Magnitude	1.24785
Gamma	0.32583
Sun Right Ascension	18h45m53.7s
Sun Declination	-23°01'00.5"
Sun Semi-Diameter	16'15.9"
Sun Equatorial Horizontal Parallax	08.9"
Moon Right Ascension	06h46m08.4s
Moon Declination	+23°19'37.5"
Moon Semi-Diameter	15'49.4"
Moon Equatorial Horizontal Parallax	0°58'04.3"
ΔT	73.4 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 December 2028–January 2029
December 31 Descending node (full moon)	January 14 Ascending node (new moon)

Total lunar eclipse Lunar Saros 125	Partial solar eclipse Solar Saros 151

Related eclipses

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.^[5]

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				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 125

This eclipse is a part of Saros series 125, repeating every 18 years, 11 days, and containing 72 events. The series started with a penumbral lunar eclipse on July 17, 1163. It contains partial eclipses from January 17, 1470 through June 6, 1686; total eclipses from June 17, 1704 through March 19, 2155; and a second set of partial eclipses from March 29, 2173 through June 25, 2317. The series ends at member 72 as a penumbral eclipse on September 9, 2443.

The longest duration of totality was produced by member 37 at 100 minutes, 23 seconds on August 22, 1812. 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 1812 Aug 22, lasting 100 minutes, 23 seconds.^[7]	Penumbral	Partial	Total	Central
	1163 Jul 17	1470 Jan 17	1704 Jun 17	1758 Jul 20
	Last
	Central	Total	Partial	Penumbral
	1920 Oct 27	2155 Mar 19	2317 Jun 25	2443 Sep 09

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 37–58 occur between 1801 and 2200:
37	38	39
1812 Aug 22	1830 Sep 02	1848 Sep 13

40	41	42
1866 Sep 24	1884 Oct 04	1902 Oct 17

43	44	45
1920 Oct 27	1938 Nov 07	1956 Nov 18

46	47	48
1974 Nov 29	1992 Dec 09	2010 Dec 21

49	50	51
2028 Dec 31	2047 Jan 12	2065 Jan 22

52	53	54
2083 Feb 02	2101 Feb 14	2119 Feb 25

55	56	57
2137 Mar 07	2155 Mar 19	2173 Mar 29

58
2191 Apr 09

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 annular solar eclipses of Solar Saros 132.