April 2013 lunar eclipse


A partial lunar eclipse occurred at the Moon's ascending node of orbit on Thursday, April 25, 2013, with an umbral magnitude of 0.0160. A lunar eclipse occurs when the Moon moves into the Earth's shadow, causing the Moon to be darkened. A partial lunar eclipse occurs when one part of the Moon is in the Earth's umbra, while the other part is in the Earth's penumbra. 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. Occurring about 1.8 days before perigee, the Moon's apparent diameter was larger.
Only a tiny sliver of the Moon was covered by the Earth's umbral shadow at maximum eclipse, but the entire northern half of the Moon was darkened from being inside the penumbral shadow. This was one of the shortest partial eclipses of the Moon in the 21st century, lasting 27 minutes. This was also the last of 58 umbral lunar eclipses in Lunar Saros 112.

Visibility

The eclipse was completely visible over Africa, Europe, and Asia, seen rising over eastern South America and setting over Australia.

Visibility map

Eclipse details

Shown below is a table displaying details about this particular solar eclipse. It describes various parameters pertaining to this eclipse.
ParameterValue
Penumbral Magnitude0.98783
Umbral Magnitude0.01596
Gamma−1.01214
Sun Right Ascension02h13m51.3s
Sun Declination+13°26'35.0"
Sun Semi-Diameter15'53.7"
Sun Equatorial Horizontal Parallax08.7"
Moon Right Ascension14h12m51.4s
Moon Declination-14°25'34.1"
Moon Semi-Diameter16'21.4"
Moon Equatorial Horizontal Parallax1°00'01.6"
ΔT67.1 s

Eclipse season

This eclipse is part of an eclipse season, a period, roughly every six months, when eclipses occur. Only two eclipse seasons occur each year, and each season lasts about 35 days and repeats just short of six months later; thus two full eclipse seasons always occur each year. Either two or three eclipses happen each eclipse season. In the sequence below, each eclipse is separated by a fortnight. The first and last eclipse in this sequence is separated by one synodic month.
April 25
Ascending node
May 10
Descending node
May 25
Ascending node
Partial lunar eclipse
Lunar Saros 112		Annular solar eclipse
Solar Saros 138		Penumbral lunar eclipse
Lunar Saros 150

Related eclipses

Eclipses in 2013

A partial lunar eclipse on April 25.

Metonic

Tzolkinex

Half-Saros

Tritos

Lunar Saros 112

Inex

Triad

Half-Saros cycle

A lunar eclipse will be preceded and followed by solar eclipses by 9 years and 5.5 days. This lunar eclipse is related to two partial solar eclipses of Solar Saros 119.
April 19, 2004April 30, 2022