May 2031 lunar eclipse
A penumbral lunar eclipse will occur at the Moon’s ascending node of orbit on Wednesday, May 7, 2031, with an umbral magnitude of −0.0892. A lunar eclipse occurs when the Moon moves into the Earth's shadow, causing the Moon to be darkened. A penumbral lunar eclipse occurs when part or all of the Moon's near side passes into 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 2 days before perigee, the Moon's apparent diameter will be larger.
Visibility
The eclipse will be completely visible over eastern North America, South America, Antarctica, and west Africa, seen rising over western North America and the eastern Pacific Ocean and setting over Africa, Europe, and the Middle East.Eclipse details
Shown below is a table displaying details about this particular solar eclipse. It describes various parameters pertaining to this eclipse.| Parameter | Value |
| Penumbral Magnitude | 0.88267 |
| Umbral Magnitude | −0.08921 |
| Gamma | −1.06949 |
| Sun Right Ascension | 02h55m49.7s |
| Sun Declination | +16°44'40.2" |
| Sun Semi-Diameter | 15'51.2" |
| Sun Equatorial Horizontal Parallax | 08.7" |
| Moon Right Ascension | 14h54m58.0s |
| Moon Declination | -17°47'29.4" |
| Moon Semi-Diameter | 16'18.7" |
| Moon Equatorial Horizontal Parallax | 0°59'52.0" |
| ΔT | 74.5 s |
Eclipse season
This eclipse is part of an eclipse season, a period, roughly every six months, when eclipses occur. Only two eclipse seasons occur each year, and each season lasts about 35 days and repeats just short of six months 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. The first and last eclipse in this sequence is separated by one synodic month.| May 7 Ascending node | May 21 Descending node | June 5 Ascending node |
| Penumbral lunar eclipse Lunar Saros 112 | Annular solar eclipse Solar Saros 138 | Penumbral lunar eclipse Lunar Saros 150 |
Related eclipses
Eclipses in 2031
A penumbral lunar eclipse on May 7.- An annular solar eclipse on May 21.
- A penumbral lunar eclipse on June 5.
- A penumbral lunar eclipse on October 30.
- A hybrid solar eclipse on November 14.
Metonic
- Preceded by: Lunar eclipse of July 18, 2027
- Followed by: Lunar eclipse of February 22, 2035
Tzolkinex
- Preceded by: Lunar eclipse of March 25, 2024
- Followed by: Lunar eclipse of June 17, 2038
Half-Saros
- Preceded by: Solar eclipse of April 30, 2022
- Followed by: Solar eclipse of May 11, 2040
Tritos
- Preceded by: Lunar eclipse of June 5, 2020
- Followed by: Lunar eclipse of April 5, 2042
Lunar Saros 112
- Preceded by: Lunar eclipse of April 25, 2013
- Followed by: Lunar eclipse of May 17, 2049
Inex
- Preceded by: Lunar eclipse of May 26, 2002
- Followed by: Lunar eclipse of April 15, 2060
Triad
- Preceded by: Lunar eclipse of July 6, 1944
- Followed by: Lunar eclipse of March 7, 2118
Half-Saros cycle
A lunar eclipse will be preceded and followed by solar eclipses by 9 years and 5.5 days. This lunar eclipse is related to two partial solar eclipses of Solar Saros 119.| April 30, 2022 | May 11, 2040 |