penumbral The umbra, penumbra and antumbra are three distinct parts of a shadow, created by any light source after impinging on an opaque object. Assuming no diffraction, for a collimated beam (such as a point source) of light, only the umbra is cast. Th ...

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 Earth ...

occurred on 28 November 2012, the second of two lunar eclipses in 2012.

Visibility

A simulated view of the earth from the center of the moon at maximal eclipse

Map

Related eclipses

Eclipses of 2012

* An annular solar eclipse on 20 May. * A partial lunar eclipse on 4 June. * A total solar eclipse on 13 November. * A penumbral lunar eclipse on 28 November.

Lunar year (354 days)

This eclipse is the one of four lunar eclipses in a short-lived series. The

lunar year A lunar calendar is a calendar based on the monthly cycles of the Moon's phases (synodic months, lunations), in contrast to solar calendars, whose annual cycles are based only directly on the solar year. The most commonly used calendar, the Greg ...

series repeats after 12 lunations or 354 days (Shifting back about 10 days in sequential years). Because of the date shift, the Earth's shadow will be about 11 degrees west in sequential events.

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 total solar eclipses of

Solar Saros 152 Saros cycle series 152 for solar eclipses occurs at the Moon's descending node, repeating every 18 years, 11 days, containing 70 events, with 67 before 3000 AD. All eclipses in this series occurs at the Moon's descending node. This solar saros is ...

References

External links

*
Penumbral lunar eclipse on 28 November 2012

2012-11 2012 in science {{lunar-eclipse-stub