June 2123 lunar eclipse

{{short description|Spectacular long central lunar eclipse}}

{{Infobox lunar eclipse

| type = total

| image = Lunar eclipse chart close-2123Jun09.png

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

| date = June 9, 2123

| gamma = 0.0406

| magnitude = 1.7488

| saros_ser = 132

| saros_no = 36 of 71

| totality = 106 minutes, 6 seconds

| partiality = 235 minutes, 47 seconds

| penumbral = 374 minutes, 23 seconds

| p1 = 1:56:43

| u1 = 3:06:02

| u2 = 4:10:52

| greatest = 5:03:55

| u3 = 5:56:58

| u4 = 7:01:48

| p4 = 8:11:06

| previous = December 2122

| next = December 2123

}}

A total lunar eclipse will occur at the Moon’s ascending node of orbit on Wednesday, June 9, 2123,{{cite web|title=June 8–9, 2123 Total Lunar Eclipse (Blood Moon)|url=https://www.timeanddate.com/eclipse/lunar/2123-june-9|publisher=timeanddate|access-date=15 December 2024}} with an umbral magnitude of 1.7488. It will be a central lunar eclipse, in which part of the Moon will pass through the center of the Earth's shadow. 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 1.4 days after apogee (on June 7, 2123, at 19:20 UTC), the Moon's apparent diameter will be smaller.{{cite web|title=Moon Distances for London, United Kingdom, England|url=https://www.timeanddate.com/astronomy/moon/distance.html?year=2123&n=136|publisher=timeanddate|access-date=15 December 2024}}

This dramatic total eclipse, lasting 106 minutes and 6 seconds, will plunge the full Moon into deep darkness as it passes right through the center of the Earth's umbral shadow. While the visual effect of a total eclipse is variable, the Moon may be stained a deep orange or red colour at maximum eclipse. This will be a great spectacle for everyone who sees it. The partial eclipse will last for 3 hours and 56 minutes in total. The penumbral eclipse lasts for 6 hours and 14 minutes. This will be the longest total lunar eclipse since July 16, 2000 (106 minutes, 25 seconds), and the longest one until May 12, 2264 (106 minutes, 13 seconds) and July 27, 3107 (106 minutes, 21 seconds), though the eclipse on June 19, 2141 will be nearly identical in all aspects.{{Cite web|url=http://eclipsewise.com/lunar/LEsaros/LEsaros166.html|title=EclipseWise - Catalog of Lunar Eclipses of Saros 166}} This will also be the longest of the 22nd century and the second longest of the 3rd millennium.{{Cite web|url=http://eclipsewise.com/lunar/LEcatalog/LEcatalog.html|title = EclipseWise - Six Millennium Catalog of Lunar Eclipses}} The eclipse on June 19, 2141 will be the second longest of the 22nd century and the third longest of the third millennium (at 106 minutes 5 seconds).