December 1982 lunar eclipse

{{Short description|Total lunar eclipse December 30, 1982}}

{{Infobox lunar eclipse

| type = total

| image = Lunar eclipse chart close-1982Dec30.png

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

| date = December 30, 1982

| gamma = 0.3758

| magnitude = 1.1822

| saros_ser = 134

| saros_no = 25 of 73

| totality = 60 minutes, 3 seconds

| partiality = 195 minutes, 53 seconds

| penumbral = 310 minutes, 34 seconds

| p1 = 8:53:27

| u1 = 9:50:48

| u2 = 10:58:43

| greatest = 11:28:44

| u3 = 11:58:46

| u4 = 13:06:41

| p4 = 14:04:01

| previous = July 1982

| next = June 1983

}}

A total lunar eclipse occurred at the Moon’s ascending node of orbit on Thursday, December 30, 1982,{{cite web|title=December 29–30, 1982 Total Lunar Eclipse (Blood Moon)|url=https://www.timeanddate.com/eclipse/lunar/1982-december-30|publisher=timeanddate|access-date=6 January 2025}} with an umbral magnitude of 1.1822. 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 10.5 hours before perigee (on December 30, 1982, at 22:00 UTC), the Moon's apparent diameter was larger.{{cite web|title=Moon Distances for London, United Kingdom, England|url=https://www.timeanddate.com/astronomy/moon/distance.html?year=1982&n=136|publisher=timeanddate|access-date=6 January 2025}}

This was a supermoon since perigee was on the same day. It was also a blue moon, the second full moon of December for the eastern hemisphere where the previous full moon was on December 1.{{cite web | url=https://www.nationalgeographic.com/science/article/super-blue-blood-moon-explained-space-astronomy-science | title=Rare 'Super Blue Blood Moon' Coming—First in 35 Years | date=29 January 2018 | last1=Fazekas | first1=Andrew | archive-url=https://web.archive.org/web/20180129221332/https://news.nationalgeographic.com/2018/01/super-blue-blood-moon-explained-space-astronomy-science/ | archive-date=29 January 2018 | website=National Geographic}} Since total lunar eclipses are also known as blood moons, this combination (which would not recur until January 31, 2018) is known as a super blue blood moon.