| Type: | partial |
| Date: | September 18, 2024 |
| Gamma: | -0.9792 |
| Magnitude: | 0.0869 |
| Saros Ser: | 118 |
| Saros No: | 52 of 73 |
| Partiality: | 62 minutes, 49 seconds |
| Penumbral: | 246 minutes, 22 seconds |
| P1: | 00:41:08 |
| U1: | 02:12:51 |
| Greatest: | 02:44:14 |
| U4: | 03:15:40 |
| P4: | 04:47:25 |
| Previous: | March 2024 |
| Next: | March 2025 |
A partial lunar eclipse occurred at the Moon’s ascending node of orbit on Wednesday, September 18, 2024,[1] with an umbral magnitude of 0.0869. 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 7 hours before perigee (on September 18, 2024, at 9:20 UTC), the Moon's apparent diameter was larger.[2]
This eclipse was the final partial lunar eclipse of Lunar Saros 118.
The eclipse was completely visible over North and South America, west Africa, and western Europe, seen rising over western North America and the eastern Pacific Ocean and setting over east Africa, eastern Europe, and west and central Asia.[3]
Shown below is a table displaying details about this particular solar eclipse. It describes various parameters pertaining to this eclipse.[4]
| Penumbral Magnitude | 1.03922 | |
| Umbral Magnitude | 0.08685 | |
| Gamma | −0.97920 | |
| Sun Right Ascension | 11h44m09.7s | |
| Sun Declination | +01°42'52.9" | |
| Sun Semi-Diameter | 15'55.1" | |
| Sun Equatorial Horizontal Parallax | 08.8" | |
| Moon Right Ascension | 23h46m06.1s | |
| Moon Declination | -02°35'26.7" | |
| Moon Semi-Diameter | 16'42.8" | |
| Moon Equatorial Horizontal Parallax | 1°01'20.4" | |
| ΔT | 71.5 s |
See also: Eclipse cycle. 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.
It is the last partial lunar eclipse of Saros cycle 118.
A lunar eclipse will precede and follow by solar eclipses by 9 years and 5.5 days (a half saros).[5] This lunar eclipse is related to two partial solar eclipses of Solar Saros 125.