May 2013 lunar eclipse

Template:Short description Template:Infobox lunar eclipse A penumbral lunar eclipse occurred at the Moon’s ascending node of orbit on Saturday, May 25, 2013, with an umbral magnitude of −0.9322. A lunar eclipse occurs when the Moon moves into the Earth's shadow, causing the Moon to be darkened. A penumbral lunar eclipse occurs when part or all of the Moon's near side passes into 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 only about 18 hours before perigee (on May 25, 2013, at 21:40 UTC), the Moon's apparent diameter was larger.

This eclipse was visually imperceptible due to the small entry into the penumbral shadow. It also marked the beginning of Saros series 150.

Visibility

The eclipse was completely visible over much of North and South America, west Africa, and western Europe, seen rising over the central Pacific Ocean and western Canada and setting over central Europe and central Africa.

File:Lunar eclipse from moon-2013May25.png	File:Lunar eclipse chart close-2013May25.png Hourly motion shown right to left	File:Lunar eclipse chart-2013May25.png The Moon's hourly motion across the Earth's shadow in the constellation of Scorpius.
File:Visibility Lunar Eclipse 2013-05-25.png Visibility map

Images

File:2013-05-25 Lunar Eclipse Sketch.png

NASA chart of the eclipse

Gallery

• Animation of the eclipse viewed from South pole of the Moon
  Animation of the eclipse viewed from South pole of the Moon

Eclipse details

Shown below is a table displaying details about this particular solar eclipse. It describes various parameters pertaining to this eclipse.

May 25, 2013 Lunar Eclipse Parameters

Parameter	Value
Penumbral Magnitude	0.01702
Umbral Magnitude	−0.93215
Gamma	1.53512
Sun Right Ascension	04h08m32.9s
Sun Declination	+20°58'05.1"
Sun Semi-Diameter	15'47.5"
Sun Equatorial Horizontal Parallax	08.7"
Moon Right Ascension	16h09m09.9s
Moon Declination	-19°24'45.3"
Moon Semi-Diameter	16'38.2"
Moon Equatorial Horizontal Parallax	1°01'03.5"
ΔT	67.1 s

Eclipse season

This eclipse is part of an eclipse season, a period, roughly every six months, when eclipses occur. Only two (or occasionally three) eclipse seasons occur each year, and each season lasts about 35 days and repeats just short of six months (173 days) 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.

Eclipse season of April–May 2013

April 25 Ascending node (full moon)	May 10 Descending node (new moon)	May 25 Ascending node (full moon)
File:Lunar eclipse chart close-2013Apr25.png	File:SE2013May10A.png	File:Lunar eclipse chart close-2013May25.png
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.
• An annular solar eclipse on May 10.
• A penumbral lunar eclipse on May 25.
• A penumbral lunar eclipse on October 18.
• A hybrid solar eclipse on November 3.

Metonic

• Preceded by: Lunar eclipse of August 6, 2009

Tzolkinex

• Followed by: Lunar eclipse of July 5, 2020

Tritos

• Preceded by: Lunar eclipse of June 24, 2002

Lunar Saros 150

• Followed by: Lunar eclipse of June 5, 2031

Inex

• Preceded by: Lunar eclipse of June 13, 1984

Triad

• Preceded by: Lunar eclipse of July 25, 1926

See also

• List of lunar eclipses and List of 21st-century lunar eclipses
• File:Penumbral eclipse of May 25, 2013 from lunar south pole.gif Animation of Earth as seen from lunar south pole during the eclipse.

External links

• Template:LEplot2001 link