September 2043 lunar eclipse

{{short description|Astronomical event}}

{{Infobox lunar eclipse

| type = total

| image = Lunar eclipse chart close-2043Sep19.png

| caption = The Moon's hourly motion shown right to left

| date = September 19, 2043

| gamma = −0.3316

| magnitude = 1.2575

| saros_ser = 128

| saros_no = 42 of 71

| totality = 71 minutes, 44 seconds

| partiality = 206 minutes, 2 seconds

| penumbral = 325 minutes, 45 seconds

| p1 = 23:07:27

| u1 = 0:07:23

| u2 = 1:14:31

| greatest = 1:50:22

| u3 = 2:26:15

| u4 = 3:33:24

| p4 = 4:33:12

| previous = March 2043

| next = March 2044

}}

A total lunar eclipse will occur at the Moon’s ascending node of orbit on Saturday, September 19, 2043,{{cite web|title=September 18–19, 2043 Total Lunar Eclipse (Blood Moon)|url=https://www.timeanddate.com/eclipse/lunar/2043-september-19|publisher=timeanddate|access-date=3 December 2024}} 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 (on September 21, 2043, at 20:20 UTC), the Moon's apparent diameter will be larger.{{cite web|title=Moon Distances for London, United Kingdom, England|url=https://www.timeanddate.com/astronomy/moon/distance.html?year=2043&n=136|publisher=timeanddate|access-date=3 December 2024}}

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.