September 2025 lunar eclipse
Template:Short description Template:Infobox lunar eclipse A total lunar eclipse will occur at the Moon’s ascending node of orbit on Sunday, September 7, 2025,[1] with an umbral magnitude of 1.3638. 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 2.6 days before perigee (on Wednesday, September 10, 2025, at 8:10 UTC), the Moon's apparent diameter will be larger.[2]
This lunar eclipse will be the second of an almost tetrad, with the others being on March 14, 2025 (total); March 3, 2026 (total); and August 28, 2026 (partial).
Visibility
The eclipse will be completely visible over east Africa, Asia, and Australia. It can be seen when it is rising over most of Africa and Europe. It can be seen when it is setting over the central Pacific Ocean.[3]
| File:Lunar eclipse from moon-2025Sep07.png File:Lunar eclipse chart close-2025Sep07.png |
| File:Visibility Lunar Eclipse 2025-09-07.png Visibility map |
Eclipse details
Shown below is a table displaying details about this particular lunar eclipse. It describes various parameters pertaining to this eclipse.[4]
| Parameter | Value |
|---|---|
| Penumbral Magnitude | 2.34591 |
| Umbral Magnitude | 1.36379 |
| Gamma | −0.27521 |
| Sun Right Ascension | 11h06m09.1s |
| Sun Declination | +05°45'47.6" |
| Sun Semi-Diameter | 15'52.4" |
| Sun Equatorial Horizontal Parallax | 08.7" |
| Moon Right Ascension | 23h06m40.4s |
| Moon Declination | -06°00'08.9" |
| Moon Semi-Diameter | 16'09.8" |
| Moon Equatorial Horizontal Parallax | 0°59'19.1" |
| ΔT | 71.9 s |
Eclipse season
Script error: No such module "Labelled list hatnote". 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.
| September 7 Ascending node (full moon) |
September 21 Descending node (new moon) |
|---|---|
| File:Lunar eclipse chart close-2025Sep07.png | File:SE2025Sep21P.png |
| Total lunar eclipse Lunar Saros 128 |
Partial solar eclipse Solar Saros 154 |
Related eclipses
Eclipses in 2025
- A total lunar eclipse on March 14.
- A partial solar eclipse on March 29.
- A total lunar eclipse on September 7.
- A partial solar eclipse on September 21.
Metonic
- Preceded by: Lunar eclipse of November 19, 2021
- Followed by: Lunar eclipse of June 26, 2029
Tzolkinex
- Preceded by: Lunar eclipse of July 27, 2018
- Followed by: Lunar eclipse of October 18, 2032
Half-Saros
- Preceded by: Solar eclipse of September 1, 2016
- Followed by: Solar eclipse of September 12, 2034
Tritos
- Preceded by: Lunar eclipse of October 8, 2014
- Followed by: Lunar eclipse of August 7, 2036
Lunar Saros 128
- Preceded by: Lunar eclipse of August 28, 2007
- Followed by: Lunar eclipse of September 19, 2043
Inex
- Preceded by: Lunar eclipse of September 27, 1996
- Followed by: Lunar eclipse of August 18, 2054
Triad
- Preceded by: Lunar eclipse of November 7, 1938
- Followed by: Lunar eclipse of July 9, 2112
Lunar eclipses of 2024–2027
Template:Lunar eclipse set 2024-2027
Metonic series
The Metonic cycle repeats nearly exactly every 19 years and represents a Saros cycle plus one lunar year. Because it occurs on the same calendar date, the Earth's shadow will in nearly the same location relative to the background stars.
|
|
| File:Metonic lunar eclipses 2006-2063A.png |
Saros 128
Template:Lunar Saros series 128
Tritos series
Template:Lunar Tritos series November 2003
Inex series
Template:Lunar Inex series September 2025
Half-Saros cycle
A lunar eclipse will be preceded and followed by solar eclipses by 9 years and 5.5 days (a half saros).[5] This lunar eclipse is related to two annular solar eclipses of Solar Saros 135.
| September 1, 2016 | September 12, 2034 |
|---|---|
| File:SE2016Sep01A.png | File:SE2034Sep12A.png |
See also
Notes
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External links
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