December 1982 lunar eclipse
| Total eclipse | |||||||||||||||||
The Moon's hourly motion shown right to left | |||||||||||||||||
| Date | December 30, 1982 | ||||||||||||||||
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| Gamma | 0.3758 | ||||||||||||||||
| Magnitude | 1.1822 | ||||||||||||||||
| Saros cycle | 134 (25 of 73) | ||||||||||||||||
| Totality | 60 minutes, 3 seconds | ||||||||||||||||
| Partiality | 195 minutes, 53 seconds | ||||||||||||||||
| Penumbral | 310 minutes, 34 seconds | ||||||||||||||||
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A total lunar eclipse occurred at the Moon’s ascending node of orbit on Thursday, December 30, 1982, 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.
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. 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.