# May 2040 lunar eclipse

A total lunar eclipse will occur at the Moon’s descending node of orbit on Saturday, May 26, 2040, with an umbral magnitude of 1.5365. It will be a central lunar eclipse, in which part of the Moon will pass through the center of the Earth's shadow. 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 1.4 days before perigee (on May 27, 2040, at 22:25 UTC), the Moon's apparent diameter will be larger.
This is the second central lunar eclipse of Saros series 131. Since this lunar event will occur near perigee, it will be referred to as a "super flower blood moon" or "super blood moon", though not quite as close to Earth as the eclipse of May 26, 2021.

## Visibility

The eclipse will be completely visible over Antarctica, Australia, and the Pacific Ocean, seen rising over east and south Asia and setting over North and South America.

## Eclipse details

Shown below is a table displaying details about this particular solar eclipse. It describes various parameters pertaining to this eclipse.
May 26, 2040 Lunar Eclipse Parameters :
| Parameter | Value |
| Penumbral Magnitude | 2.49551 |
| Umbral Magnitude | 1.53646 |
| Gamma | −0.18720 |
| Sun Right Ascension | 04h15m46.6s |
| Sun Declination | +21°16'35.1" |
| Sun Semi-Diameter | 15'47.2" |
| Sun Equatorial Horizontal Parallax | 08.7" |
| Moon Right Ascension | 16h15m33.4s |
| Moon Declination | -21°27'28.2" |
| Moon Semi-Diameter | 16'27.7" |
| Moon Equatorial Horizontal Parallax | 1°00'24.9" |
| ΔT | 79.3 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 May 2040 :
| May 11 Ascending node (new moon) | May 26 Descending node (full moon) |
| Partial solar eclipse Solar Saros 119 | Total lunar eclipse Lunar Saros 131 |

## Related eclipses
### Eclipses in 2040

* A partial solar eclipse on May 11.
* A total lunar eclipse on May 26.
* A partial solar eclipse on November 4.
* A total lunar eclipse on November 18.

### Metonic

* Preceded by: Lunar eclipse of August 7, 2036
* Followed by: Lunar eclipse of March 13, 2044

### Tzolkinex

* Preceded by: Lunar eclipse of April 14, 2033
* Followed by: Lunar eclipse of July 7, 2047

### Half-Saros

* Preceded by: Solar eclipse of May 21, 2031
* Followed by: Solar eclipse of May 31, 2049

### Tritos

* Preceded by: Lunar eclipse of June 26, 2029
* Followed by: Lunar eclipse of April 26, 2051

### Lunar Saros 131

* Preceded by: Lunar eclipse of May 16, 2022
* Followed by: Lunar eclipse of June 6, 2058

### Inex

* Preceded by: Lunar eclipse of June 15, 2011
* Followed by: Lunar eclipse of May 6, 2069

### Triad

* Preceded by: Lunar eclipse of July 26, 1953
* Followed by: Lunar eclipse of March 28, 2127

### Lunar eclipses of 2038–2042

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 January 21, 2038 and July 16, 2038 occur in the previous lunar year eclipse set, and the penumbral lunar eclipses on April 5, 2042 and September 29, 2042 occur in the next lunar year eclipse set.
Lunar eclipse series sets from 2038 to 2042 :
| Descending node | Descending node | Descending node | Descending node | Ascending node | Ascending node | Ascending node | Ascending node |
| Saros | Date Viewing | Type Chart | Gamma | Saros | Date Viewing | Type Chart | Gamma |
| 111 | 2038 Jun 17 | Penumbral | 1.3082 | 116 | 2038 Dec 11 | Penumbral | −1.1448 |
| 121 | 2039 Jun 06 | Partial | 0.5460 | 126 | 2039 Nov 30 | Partial | −0.4721 |
| 131 | 2040 May 26 | Total | −0.1872 | 136 | 2040 Nov 18 | Total | 0.2361 |
| 141 | 2041 May 16 | Partial | −0.9746 | 146 | 2041 Nov 08 | Partial | 0.9212 |
| | | | | 156 | 2042 Oct 28 | Penumbral | − |

### Saros 131

This eclipse is a part of Saros series 131, repeating every 18 years, 11 days, and containing 72 events. The series started with a penumbral lunar eclipse on May 10, 1427. It contains partial eclipses from July 25, 1553 through March 22, 1932; total eclipses from April 2, 1950 through September 3, 2202; and a second set of partial eclipses from September 13, 2220 through April 9, 2563. The series ends at member 72 as a penumbral eclipse on July 7, 2707.
The longest duration of totality will be produced by member 38 at 100 minutes, 36 seconds on June 28, 2094. 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 will occur on 2094 Jun 28, lasting 100 minutes, 36 seconds. | Penumbral | Partial | Total | Central |
| The greatest eclipse of the series will occur on 2094 Jun 28, lasting 100 minutes, 36 seconds. | 1427 May 10 | 1553 Jul 25 | 1950 Apr 02 | 2022 May 16 |
| Last ||||
| The greatest eclipse of the series will occur on 2094 Jun 28, lasting 100 minutes, 36 seconds. | Central | Total | Partial | Penumbral |
| The greatest eclipse of the series will occur on 2094 Jun 28, lasting 100 minutes, 36 seconds. | 2148 Jul 31 | 2202 Sep 03 | 2563 Apr 09 | 2707 Jul 07 |
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 22–43 occur between 1801 and 2200: :
| 22 | 22 | 23 | 23 | 24 | 24 |
| 1806 Jan 05 | 1806 Jan 05 | 1824 Jan 16 | 1824 Jan 16 | 1842 Jan 26 | 1842 Jan 26 |
| 25 | 25 | 26 | 26 | 27 | 27 |
| 1860 Feb 07 | 1860 Feb 07 | 1878 Feb 17 | 1878 Feb 17 | 1896 Feb 28 | 1896 Feb 28 |
| 28 | 28 | 29 | 29 | 30 | 30 |
| 1914 Mar 12 | 1914 Mar 12 | 1932 Mar 22 | 1932 Mar 22 | 1950 Apr 02 | 1950 Apr 02 |
| 31 | 31 | 32 | 32 | 33 | 33 |
| 1968 Apr 13 | 1968 Apr 13 | 1986 Apr 24 | 1986 Apr 24 | 2004 May 04 | 2004 May 04 |
| 34 | 34 | 35 | 35 | 36 | 36 |
| 2022 May 16 | 2022 May 16 | 2040 May 26 | 2040 May 26 | 2058 Jun 06 | 2058 Jun 06 |
| 37 | 37 | 38 | 38 | 39 | 39 |
| 2076 Jun 17 | 2076 Jun 17 | 2094 Jun 28 | 2094 Jun 28 | 2112 Jul 09 | 2112 Jul 09 |
| 40 | 40 | 41 | 41 | 42 | 42 |
| 2130 Jul 21 | 2130 Jul 21 | 2148 Jul 31 | 2148 Jul 31 | 2166 Aug 11 | 2166 Aug 11 |
| 43 ||
| 2184 Aug 21 ||

### 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 1801 and 2200 :
| 1811 Mar 10 (Saros 110) | 1811 Mar 10 (Saros 110) | 1822 Feb 06 (Saros 111) | 1822 Feb 06 (Saros 111) | 1833 Jan 06 (Saros 112) | 1833 Jan 06 (Saros 112) | 1843 Dec 07 (Saros 113) | 1843 Dec 07 (Saros 113) | 1854 Nov 04 (Saros 114) | 1854 Nov 04 (Saros 114) |
| 1865 Oct 04 (Saros 115) | 1865 Oct 04 (Saros 115) | 1876 Sep 03 (Saros 116) | 1876 Sep 03 (Saros 116) | 1887 Aug 03 (Saros 117) | 1887 Aug 03 (Saros 117) | 1898 Jul 03 (Saros 118) | 1898 Jul 03 (Saros 118) | 1909 Jun 04 (Saros 119) | 1909 Jun 04 (Saros 119) |
| 1920 May 03 (Saros 120) | 1920 May 03 (Saros 120) | 1931 Apr 02 (Saros 121) | 1931 Apr 02 (Saros 121) | 1942 Mar 03 (Saros 122) | 1942 Mar 03 (Saros 122) | 1953 Jan 29 (Saros 123) | 1953 Jan 29 (Saros 123) | 1963 Dec 30 (Saros 124) | 1963 Dec 30 (Saros 124) |
| 1974 Nov 29 (Saros 125) | 1974 Nov 29 (Saros 125) | 1985 Oct 28 (Saros 126) | 1985 Oct 28 (Saros 126) | 1996 Sep 27 (Saros 127) | 1996 Sep 27 (Saros 127) | 2007 Aug 28 (Saros 128) | 2007 Aug 28 (Saros 128) | 2018 Jul 27 (Saros 129) | 2018 Jul 27 (Saros 129) |
| 2029 Jun 26 (Saros 130) | 2029 Jun 26 (Saros 130) | 2040 May 26 (Saros 131) | 2040 May 26 (Saros 131) | 2051 Apr 26 (Saros 132) | 2051 Apr 26 (Saros 132) | 2062 Mar 25 (Saros 133) | 2062 Mar 25 (Saros 133) | 2073 Feb 22 (Saros 134) | 2073 Feb 22 (Saros 134) |
| 2084 Jan 22 (Saros 135) | 2084 Jan 22 (Saros 135) | 2094 Dec 21 (Saros 136) | 2094 Dec 21 (Saros 136) | 2105 Nov 21 (Saros 137) | 2105 Nov 21 (Saros 137) | 2116 Oct 21 (Saros 138) | 2116 Oct 21 (Saros 138) | 2127 Sep 20 (Saros 139) | 2127 Sep 20 (Saros 139) |
| 2138 Aug 20 (Saros 140) | 2138 Aug 20 (Saros 140) | 2149 Jul 20 (Saros 141) | 2149 Jul 20 (Saros 141) | 2160 Jun 18 (Saros 142) | 2160 Jun 18 (Saros 142) | 2171 May 19 (Saros 143) | 2171 May 19 (Saros 143) | 2182 Apr 18 (Saros 144) | 2182 Apr 18 (Saros 144) |
| 2193 Mar 17 (Saros 145) ||

### 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 :
| 1808 Nov 03 (Saros 123) | 1808 Nov 03 (Saros 123) | 1837 Oct 13 (Saros 124) | 1837 Oct 13 (Saros 124) | 1866 Sep 24 (Saros 125) | 1866 Sep 24 (Saros 125) |
| 1895 Sep 04 (Saros 126) | 1895 Sep 04 (Saros 126) | 1924 Aug 14 (Saros 127) | 1924 Aug 14 (Saros 127) | 1953 Jul 26 (Saros 128) | 1953 Jul 26 (Saros 128) |
| 1982 Jul 06 (Saros 129) | 1982 Jul 06 (Saros 129) | 2011 Jun 15 (Saros 130) | 2011 Jun 15 (Saros 130) | 2040 May 26 (Saros 131) | 2040 May 26 (Saros 131) |
| 2069 May 06 (Saros 132) | 2069 May 06 (Saros 132) | 2098 Apr 15 (Saros 133) | 2098 Apr 15 (Saros 133) | 2127 Mar 28 (Saros 134) | 2127 Mar 28 (Saros 134) |
| 2156 Mar 07 (Saros 135) | 2156 Mar 07 (Saros 135) | 2185 Feb 14 (Saros 136) | 2185 Feb 14 (Saros 136) |

### 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 annular solar eclipses of Solar Saros 138.
| May 21, 2031 | May 31, 2049 |