A partial

lunar eclipse A lunar eclipse occurs when the Moon moves into the Earth's shadow. Such alignment occurs during an eclipse season, approximately every six months, during the full moon phase, when the Moon's orbital plane is closest to the plane of the Eart ...

took place on Saturday, December 21, 1991, the last of four lunar eclipses in 1991. The moon grazed the northern edge of the umbral shadow. It occurred near perigee, and as described, such event was known as a

supermoon A supermoon is a full moon or a new moon that nearly coincides with perigee—the closest that the Moon comes to the Earth in its elliptic orbit—resulting in a slightly larger-than-usual apparent size of the lunar disk as viewed from Earth. ...

Visibility

This small partial eclipse was visible from North America, eastern Asia, Australia, and western South America. Lunar eclipse from moon-1991Dec21

Related eclipses

Eclipses of 1991

* An annular solar eclipse on January 15. * A penumbral lunar eclipse on January 30. * A penumbral lunar eclipse on June 27. * A total solar eclipse on July 11. * A penumbral lunar eclipse on July 26. * A partial lunar eclipse on December 21.

Lunar year series

Metonic cycles (19 years)

Half-Saros cycle

A lunar eclipse will be preceded and followed by solar eclipses by 9 years and 5.5 days (a half saros).Mathematical Astronomy Morsels, Jean Meeus, p.110, Chapter 18, ''The half-saros'' This lunar eclipse is related to two partial solar eclipses of

Solar Saros 122 Saros cycle series 122 for solar eclipse A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby obscuring the view of the Sun from a small part of the Earth, totally or partially. Such an alignment occurs during ...

References

External links

Saros cycle 115
* 1991-12 1991 in science December 1991 events {{lunar-eclipse-stub