A total lunar eclipse took place on December 30, 1982. A shallow total eclipse saw the Moon in relative darkness for 1 hour exactly. The Moon was 18% of its diameter into the Earth's umbral shadow, and should have been significantly darkened. The partial eclipse lasted for 3 hours and 16 minutes in total. 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.