April 2005 lunar eclipse

April 2005 lunar eclipse
Penumbral eclipse
	From Minneapolis, Minnesota, with inset images of a full moon a few hours before the eclipse, and the setting moon at 9:55 UT near greatest eclipse.
Date	April 24, 2005
Gamma	−1.0885
Magnitude	−0.1417
Saros cycle	141 (23 of 73)
Penumbral	245 minutes, 38 seconds
P1
Contacts (UTC)
P1	7:52:06
Greatest	9:54:51
P4	11:57:44
	← October 2004 October 2005 →

A penumbral lunar eclipse occurred at the Moon’s descending node of orbit on Sunday, April 24, 2005,^[1] with an umbral magnitude of −0.1417. 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 about 4.9 days before perigee (on April 29, 2005, at 6:10 UTC), the Moon's apparent diameter was larger.^[2]

Visibility

The eclipse was completely visible much of western North America, the Pacific Ocean, and eastern Australia, seen rising over Australia and east Asia and setting over eastern North America and South America.^[3]

	Hourly motion shown right to left	The Moon's hourly motion across the Earth's shadow in the constellation of Virgo.
Visibility map

Images

Eclipse details

Shown below is a table displaying details about this particular solar eclipse. It describes various parameters pertaining to this eclipse.^[4]

April 24, 2005 Lunar Eclipse Parameters
Parameter	Value
Penumbral Magnitude	0.86693
Umbral Magnitude	−0.14165
Gamma	−1.08851
Sun Right Ascension	02h08m13.9s
Sun Declination	+12°57'36.8"
Sun Semi-Diameter	15'54.1"
Sun Equatorial Horizontal Parallax	08.7"
Moon Right Ascension	14h06m23.1s
Moon Declination	-13°54'32.8"
Moon Semi-Diameter	15'46.0"
Moon Equatorial Horizontal Parallax	0°57'51.7"
ΔT	64.7 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.

Eclipse season of April 2005
April 8 Ascending node (new moon)	April 24 Descending node (full moon)

Hybrid solar eclipse Solar Saros 129	Penumbral lunar eclipse Lunar Saros 141

Related eclipses

Lunar eclipses of 2002–2005

Lunar eclipse series sets from 2002–2005
Descending node				Ascending node
Saros Photo	Date View	Type Chart	Gamma	Saros Photo	Date View	Type Chart	Gamma
111	2002 May 26	penumbral	1.1759	116	2002 Nov 20	penumbral	−1.1127
121	2003 May 16	total	0.4123	126	2003 Nov 09	total	−0.4319
131	2004 May 04	total	−0.3132	136	2004 Oct 28	total	0.2846
141	2005 Apr 24	penumbral	−1.0885	146	2005 Oct 17	partial	0.9796

Last set	2002 Jun 24			Last set	2001 Dec 30

Next set	2006 Mar 14			Next set	2006 Sep 07

Saros 141

Lunar Saros 141, repeating every 18 years and 11 days, has a total of 72 lunar eclipse events including 26 total lunar eclipses.

First Penumbral Lunar Eclipse: 1608 Aug 25

First Partial Lunar Eclipse: 2041 May 16

First Total Lunar Eclipse: 2167 Aug 01

First Central Lunar Eclipse: 2221 Sep 02

Greatest Eclipse of the Lunar Saros 141: 2293 Oct 16

Last Central Lunar Eclipse: 2546 Mar 18

Last Total Lunar Eclipse: 2618 May 01

Last Partial Lunar Eclipse: 2744 Jul 16

Last Penumbral Lunar Eclipse: 2888 Oct 11

1901-2100

March 1915 lunar eclipse

March 1933 lunar eclipse

March 1951 lunar eclipse

April 1969 lunar eclipse

April 1987 lunar eclipse

April 2005 lunar eclipse

May 2023 lunar eclipse

May 2041 lunar eclipse

May 2059 lunar eclipse

June 2077 lunar eclipse

June 2095 lunar eclipse

Metonic series

This eclipse is the last of four Metonic cycle lunar eclipses on the same date, 23–24 April, each separated by 19 years:

The Metonic cycle repeats nearly exactly every 19 years and represents a Saros cycle plus one lunar year. Because it occurs on the same calendar date, the Earth's shadow will in nearly the same location relative to the background stars.

Metonic lunar eclipse sets 1948–2005
Descending node			Ascending node
Saros	Date	Type	Saros	Date	Type
111	1948 Apr 23	Partial	116	1948 Oct 18	Penumbral

121	1967 Apr 24	Total	126	1967 Oct 18	Total

131	1986 Apr 24	Total	136	1986 Oct 17	Total

141	2005 Apr 24	Penumbral	146	2005 Oct 17	Partial

Half-Saros cycle

A lunar eclipse will be preceded and followed by solar eclipses by 9 years and 5.5 days (a half saros).^[5] This lunar eclipse is related to two solar eclipses of Solar Saros 148.