September 2043 lunar eclipse
A total lunar eclipse will occur at the Moon’s ascending node of orbit on Saturday, September 19, 2043, with an umbral magnitude of 1.2575. 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 2.8 days before perigee, the Moon's apparent diameter will be larger.
This lunar eclipse is the second of a tetrad, with four total lunar eclipses in series, the others being on March 25, 2043; March 13, 2044; and September 7, 2044.
Visibility
The eclipse will be completely visible over South America, western Europe, and west Africa, seen rising over North America and setting over east Africa, eastern Europe, and west, central, and south Asia.Eclipse details
Shown below is a table displaying details about this particular lunar eclipse. It describes various parameters pertaining to this eclipse.| Parameter | Value |
| Penumbral Magnitude | 2.24520 |
| Umbral Magnitude | 1.25751 |
| Gamma | −0.33164 |
| Sun Right Ascension | 11h45m28.0s |
| Sun Declination | +01°34'24.4" |
| Sun Semi-Diameter | 15'55.1" |
| Sun Equatorial Horizontal Parallax | 08.8" |
| Moon Right Ascension | 23h46m06.1s |
| Moon Declination | -01°51'33.2" |
| Moon Semi-Diameter | 16'07.0" |
| Moon Equatorial Horizontal Parallax | 0°59'08.8" |
| ΔT | 81.2 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.| September 19 Ascending node | October 3 Descending node |
| Total lunar eclipse Lunar Saros 128 | Annular solar eclipse Solar Saros 154 |
Related eclipses
Eclipses in 2043
- A total lunar eclipse on March 25.
- A non-central total solar eclipse on April 9.A total lunar eclipse on September 19.
- A non-central annular solar eclipse on October 3.
Metonic
- Preceded by: Lunar eclipse of November 30, 2039
- Followed by: Lunar eclipse of July 7, 2047
Tzolkinex
- Preceded by: Lunar eclipse of August 7, 2036
- Followed by: Lunar eclipse of October 30, 2050
Half-Saros
- Preceded by: Solar eclipse of September 12, 2034
- Followed by: Solar eclipse of September 22, 2052
Tritos
- Preceded by: Lunar eclipse of October 18, 2032
- Followed by: Lunar eclipse of August 18, 2054
Lunar Saros 128
- Preceded by: Lunar eclipse of September 7, 2025
- Followed by: Lunar eclipse of September 29, 2061
Inex
- Preceded by: Lunar eclipse of October 8, 2014
- Followed by: Lunar eclipse of August 28, 2072
Triad
- Preceded by: Lunar eclipse of November 18, 1956
- Followed by: Lunar eclipse of July 21, 2130
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 annular solar eclipses of Solar Saros 135.| September 12, 2034 | September 22, 2052 |