February 2055 lunar eclipse

{{short description|Astronomical event}}

{{Infobox lunar eclipse

| type = total

| image = Lunar eclipse chart close-2055Feb11.png

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

| date = February 11, 2055

| gamma = 0.3526

| magnitude = 1.2258

| saros_ser = 134

| saros_no = 29 of 73

| totality = 66 minutes, 0 seconds

| partiality = 198 minutes, 25 seconds

| penumbral = 312 minutes, 52 seconds

| p1 = 20:08:07

| u1 = 21:05:22

| u2 = 22:11:35

| greatest = 22:44:34

| u3 = 23:17:34

| u4 = 0:23:47

| p4 = 1:20:59

| previous = August 2054

| next = August 2055

}}

A total lunar eclipse will occur at the Moon’s ascending node of orbit on Thursday, February 11, 2055,{{cite web|title=February 11–12, 2055 Total Lunar Eclipse (Blood Moon)|url=https://www.timeanddate.com/eclipse/lunar/2055-february-11|publisher=timeanddate|access-date=13 December 2024}} with an umbral magnitude of 1.2258. 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 only about 15 hours before perigee (on February 12, 2055, at 13:00 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=2055&n=136|publisher=timeanddate|access-date=13 December 2024}}

This lunar eclipse will be the third of an almost tetrad, with the others being on February 22, 2054 (total); August 18, 2054 (total); and August 7, 2055 (partial).