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]
| Partial eclipse | |||||||||||||
 Maximum partiality, 2:44 UTC, from Minneapolis, Minnesota | |||||||||||||
| Date | September 18, 2024 | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Gamma | −0.9792 | ||||||||||||
| Magnitude | 0.0869 | ||||||||||||
| Saros cycle | 118 (52 of 73) | ||||||||||||
| Partiality | 62 minutes, 49 seconds | ||||||||||||
| Penumbral | 246 minutes, 22 seconds | ||||||||||||
| |||||||||||||
| External videos | |
|---|---|
 Partial lunar eclipse on 17/18 September 2024: timelapse video from Spain |
This eclipse was the final partial lunar eclipse of Lunar Saros 118.
Visibility
editThe 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]
 
|
 Visibility map |
Gallery
edit-
33 minutes after Penumbra Phase started, Halifax, Canada, 01:14 UTC -
From Halifax, Canada, (Maximum) 02:44 UTC -
From Halifax, Canada, 02:41 UTC -
End of Partially, Halifax, Canada, 03:11 UTC -
September 2024 Lunar Eclipse from Mexicali, 2:49 UTC, Mexicali, Mexico -
Start of partial eclipse in Moscow, Russia, 02:19 UTC -
From Moscow, 02:45 UTC -
Near sunrise, Moscow, 02:55 UTC -
From Dallas, Texas -
From Logroño, Spain, 02:50 UTC -
1:46 UTC, Minnesota, USA -
2:28 UTC, Minnesota, USA -
2:44 UTC (maximum), Minnesota, USA -
02:46 UTC, Santa Ana, California, USA -
2:49 UTC, Norwalk Ohio, USA -
3:01 UTC, Minnesota, USA -
3:16 UTC, Minnesota, USA
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Eclipse details
editShown below is a table displaying details about this particular solar eclipse. It describes various parameters pertaining to this eclipse.[4]
| Parameter | Value |
|---|---|
| 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 |
Eclipse season
editThis 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 18 Ascending node (full moon) |
October 2 Descending node (new moon) |
|---|---|
| |
|
| Partial lunar eclipse Lunar Saros 118 |
Annular solar eclipse Solar Saros 144 |
Related eclipses
editEclipses in 2024
edit- A penumbral lunar eclipse on March 25.
- A total solar eclipse on April 8.
- A partial lunar eclipse on September 18.
- An annular solar eclipse on October 2.
Metonic
edit- Preceded by: Lunar eclipse of November 30, 2020
- Followed by: Lunar eclipse of July 6, 2028
Tzolkinex
edit- Preceded by: Lunar eclipse of August 7, 2017
- Followed by: Lunar eclipse of October 30, 2031
Half-Saros
edit- Preceded by: Solar eclipse of September 13, 2015
- Followed by: Solar eclipse of September 23, 2033
Tritos
edit- Preceded by: Lunar eclipse of October 18, 2013
- Followed by: Lunar eclipse of August 19, 2035
Lunar Saros 118
edit- Preceded by: Lunar eclipse of September 7, 2006
- Followed by: Lunar eclipse of September 29, 2042
Inex
edit- Preceded by: Lunar eclipse of October 8, 1995
- Followed by: Lunar eclipse of August 29, 2053
Triad
edit- Preceded by: Lunar eclipse of November 18, 1937
- Followed by: Lunar eclipse of July 21, 2111
Lunar eclipses of 2024–2027
edit| Lunar eclipse series sets from 2024–2027 | ||||||||
|---|---|---|---|---|---|---|---|---|
| Descending node | Ascending node | |||||||
| Saros | Date | Type Viewing |
Gamma | Saros | Date Viewing |
Type Chart |
Gamma | |
113
|
2024 Mar 25
|
Penumbral
|
1.06098 | 118
|
2024 Sep 18
|
Partial
|
−0.97920 | |
| 123 | 2025 Mar 14
|
Total
|
0.34846 | 128 | 2025 Sep 07
|
Total
|
−0.27521 | |
| 133 | 2026 Mar 03
|
Total
|
−0.37651 | 138 | 2026 Aug 28
|
Partial
|
0.49644 | |
| 143 | 2027 Feb 20
|
Penumbral
|
−1.04803 | 148 | 2027 Aug 17
|
Penumbral
|
1.27974 | |
| Last set | 2023 May 05 | Last set | 2023 Oct 28 | |||||
| Next set | 2028 Jan 12 | Next set | 2027 Jul 18 | |||||
Saros 118
editIt is the last partial lunar eclipse of Saros cycle 118.
Half-Saros cycle
editA 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.
| September 13, 2015 | September 23, 2033 |
|---|---|
|
|
See also
editReferences
edit- ^ "September 17–18, 2024 Partial Lunar Eclipse". timeanddate. Retrieved 18 November 2024.
- ^ "Moon Distances for London, United Kingdom, England". timeanddate. Retrieved 18 November 2024.
- ^ "Partial Lunar Eclipse of 2024 Sep 18" (PDF). NASA. Retrieved 18 November 2024.
- ^ "Partial Lunar Eclipse of 2024 Sep 18". EclipseWise.com. Retrieved 18 November 2024.
- ^ Mathematical Astronomy Morsels, Jean Meeus, p.110, Chapter 18, The half-saros
External links
edit- Saros cycle 118
- 2024 Sep 18 chart: Eclipse Predictions by Fred Espenak, NASA/GSFC
