# April 2005 lunar eclipse

A penumbral lunar eclipse occurred at the Moon’s descending node of orbit on Sunday, April 24, 2005, 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.

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

## Eclipse details

Shown below is a table displaying details about this particular solar eclipse. It describes various parameters pertaining to this eclipse.
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
### Eclipses in 2005

* A hybrid solar eclipse on April 8.
* A penumbral lunar eclipse on April 24.
* An annular solar eclipse on October 3.
* A partial lunar eclipse on October 17.

### Metonic

* Preceded by: Lunar eclipse of July 5, 2001
* Followed by: Lunar eclipse of February 9, 2009

### Tzolkinex

* Preceded by: Lunar eclipse of March 13, 1998
* Followed by: Lunar eclipse of June 4, 2012

### Half-Saros

* Preceded by: Solar eclipse of April 17, 1996
* Followed by: Solar eclipse of April 29, 2014

### Tritos

* Preceded by: Lunar eclipse of May 25, 1994
* Followed by: Lunar eclipse of March 23, 2016

### Lunar Saros 141

* Preceded by: Lunar eclipse of April 14, 1987
* Followed by: Lunar eclipse of May 5, 2023

### Inex

* Preceded by: Lunar eclipse of May 13, 1976
* Followed by: Lunar eclipse of April 3, 2034

### Triad

* Preceded by: Lunar eclipse of June 24, 1918
* Followed by: Lunar eclipse of February 23, 2092

### Lunar eclipses of 2002–2005

This eclipse is a member of a semester series. An eclipse in a semester series of lunar eclipses repeats approximately every 177 days and 4 hours (a semester) at alternating nodes of the Moon's orbit.
The penumbral lunar eclipse on June 24, 2002 occurs in the previous lunar year eclipse set.
Lunar eclipse series sets from 2002 to 2005 :
| Descending node | Descending node | Descending node | Descending node | Ascending node | Ascending node | Ascending node | Ascending node |
| Saros | Date Viewing | Type Chart | Gamma | Saros | Date Viewing | 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 |

### Metonic series

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 | Descending node | Descending node | Ascending node | Ascending 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 |

### Saros 141

This eclipse is a part of Saros series 141, repeating every 18 years, 11 days, and containing 72 events. The series started with a penumbral lunar eclipse on August 25, 1608. It contains partial eclipses from May 16, 2041 through July 20, 2149; total eclipses from August 1, 2167 through May 1, 2618; and a second set of partial eclipses from May 12, 2636 through July 16, 2744. The series ends at member 72 as a penumbral eclipse on October 11, 2888.
The longest duration of totality will be produced by member 39 at 104 minutes, 36 seconds on October 16, 2293. All eclipses in this series occur at the Moon’s descending node of orbit.
| Greatest | First | First | First | First |
| The greatest eclipse of the series will occur on 2293 Oct 16, lasting 104 minutes, 36 seconds. | Penumbral | Partial | Total | Central |
| The greatest eclipse of the series will occur on 2293 Oct 16, lasting 104 minutes, 36 seconds. | 1608 Aug 25 | 2041 May 16 | 2167 Aug 01 | 2221 Sep 02 |
| Last ||||
| The greatest eclipse of the series will occur on 2293 Oct 16, lasting 104 minutes, 36 seconds. | Central | Total | Partial | Penumbral |
| The greatest eclipse of the series will occur on 2293 Oct 16, lasting 104 minutes, 36 seconds. | 2546 Mar 18 | 2618 May 01 | 2744 Jul 16 | 2888 Oct 11 |
Eclipses are tabulated in three columns; every third eclipse in the same column is one exeligmos apart, so they all cast shadows over approximately the same parts of the Earth.
Series members 12–33 occur between 1801 and 2200: :
| 12 | 12 | 13 | 13 | 14 | 14 |
| 1806 Dec 25 | 1806 Dec 25 | 1825 Jan 04 | 1825 Jan 04 | 1843 Jan 16 | 1843 Jan 16 |
| 15 | 15 | 16 | 16 | 17 | 17 |
| 1861 Jan 26 | 1861 Jan 26 | 1879 Feb 07 | 1879 Feb 07 | 1897 Feb 17 | 1897 Feb 17 |
| 18 | 18 | 19 | 19 | 20 | 20 |
| 1915 Mar 01 | 1915 Mar 01 | 1933 Mar 12 | 1933 Mar 12 | 1951 Mar 23 | 1951 Mar 23 |
| 21 | 21 | 22 | 22 | 23 | 23 |
| 1969 Apr 02 | 1969 Apr 02 | 1987 Apr 14 | 1987 Apr 14 | 2005 Apr 24 | 2005 Apr 24 |
| 24 | 24 | 25 | 25 | 26 | 26 |
| 2023 May 05 | 2023 May 05 | 2041 May 16 | 2041 May 16 | 2059 May 27 | 2059 May 27 |
| 27 | 27 | 28 | 28 | 29 | 29 |
| 2077 Jun 06 | 2077 Jun 06 | 2095 Jun 17 | 2095 Jun 17 | 2113 Jun 29 | 2113 Jun 29 |
| 30 | 30 | 31 | 31 | 32 | 32 |
| 2131 Jul 10 | 2131 Jul 10 | 2149 Jul 20 | 2149 Jul 20 | 2167 Aug 01 | 2167 Aug 01 |
| 33 ||
| 2185 Aug 11 ||

### Tritos series

This eclipse is a part of a tritos cycle, repeating at alternating nodes every 135 synodic months (≈ 3986.63 days, or 11 years minus 1 month). Their appearance and longitude are irregular due to a lack of synchronization with the anomalistic month (period of perigee), but groupings of 3 tritos cycles (≈ 33 years minus 3 months) come close (≈ 434.044 anomalistic months), so eclipses are similar in these groupings.
Series members between 1801 and 2200 :
| 1808 Nov 03 (Saros 123) | 1808 Nov 03 (Saros 123) | 1819 Oct 03 (Saros 124) | 1819 Oct 03 (Saros 124) | 1830 Sep 02 (Saros 125) | 1830 Sep 02 (Saros 125) | 1841 Aug 02 (Saros 126) | 1841 Aug 02 (Saros 126) | 1852 Jul 01 (Saros 127) | 1852 Jul 01 (Saros 127) |
| 1863 Jun 01 (Saros 128) | 1863 Jun 01 (Saros 128) | 1874 May 01 (Saros 129) | 1874 May 01 (Saros 129) | 1885 Mar 30 (Saros 130) | 1885 Mar 30 (Saros 130) | 1896 Feb 28 (Saros 131) | 1896 Feb 28 (Saros 131) | 1907 Jan 29 (Saros 132) | 1907 Jan 29 (Saros 132) |
| 1917 Dec 28 (Saros 133) | 1917 Dec 28 (Saros 133) | 1928 Nov 27 (Saros 134) | 1928 Nov 27 (Saros 134) | 1939 Oct 28 (Saros 135) | 1939 Oct 28 (Saros 135) | 1950 Sep 26 (Saros 136) | 1950 Sep 26 (Saros 136) | 1961 Aug 26 (Saros 137) | 1961 Aug 26 (Saros 137) |
| 1972 Jul 26 (Saros 138) | 1972 Jul 26 (Saros 138) | 1983 Jun 25 (Saros 139) | 1983 Jun 25 (Saros 139) | 1994 May 25 (Saros 140) | 1994 May 25 (Saros 140) | 2005 Apr 24 (Saros 141) | 2005 Apr 24 (Saros 141) | 2016 Mar 23 (Saros 142) | 2016 Mar 23 (Saros 142) |
| 2027 Feb 20 (Saros 143) | 2027 Feb 20 (Saros 143) | 2038 Jan 21 (Saros 144) | 2038 Jan 21 (Saros 144) | 2048 Dec 20 (Saros 145) | 2048 Dec 20 (Saros 145) | 2059 Nov 19 (Saros 146) | 2059 Nov 19 (Saros 146) | 2070 Oct 19 (Saros 147) | 2070 Oct 19 (Saros 147) |
| 2081 Sep 18 (Saros 148) | 2081 Sep 18 (Saros 148) | 2092 Aug 17 (Saros 149) | 2092 Aug 17 (Saros 149) | 2103 Jul 19 (Saros 150) | 2103 Jul 19 (Saros 150) | 2114 Jun 18 (Saros 151) | 2114 Jun 18 (Saros 151) | 2125 May 17 (Saros 152) | 2125 May 17 (Saros 152) |
| 2136 Apr 16 (Saros 153) | 2136 Apr 16 (Saros 153) | | | | | 2169 Jan 13 (Saros 156) | 2169 Jan 13 (Saros 156) | | |
| 2190 Nov 12 (Saros 158) ||

### Inex series

This eclipse is a part of the long period inex cycle, repeating at alternating nodes, every 358 synodic months (≈ 10,571.95 days, or 29 years minus 20 days). Their appearance and longitude are irregular due to a lack of synchronization with the anomalistic month (period of perigee). However, groupings of 3 inex cycles (≈ 87 years minus 2 months) comes close (≈ 1,151.02 anomalistic months), so eclipses are similar in these groupings.
Series members between 1801 and 2200 :
| 1802 Sep 11 (Saros 134) | 1802 Sep 11 (Saros 134) | 1831 Aug 23 (Saros 135) | 1831 Aug 23 (Saros 135) | 1860 Aug 01 (Saros 136) | 1860 Aug 01 (Saros 136) |
| 1889 Jul 12 (Saros 137) | 1889 Jul 12 (Saros 137) | 1918 Jun 24 (Saros 138) | 1918 Jun 24 (Saros 138) | 1947 Jun 03 (Saros 139) | 1947 Jun 03 (Saros 139) |
| 1976 May 13 (Saros 140) | 1976 May 13 (Saros 140) | 2005 Apr 24 (Saros 141) | 2005 Apr 24 (Saros 141) | 2034 Apr 03 (Saros 142) | 2034 Apr 03 (Saros 142) |
| 2063 Mar 14 (Saros 143) | 2063 Mar 14 (Saros 143) | 2092 Feb 23 (Saros 144) | 2092 Feb 23 (Saros 144) | 2121 Feb 02 (Saros 145) | 2121 Feb 02 (Saros 145) |
| 2150 Jan 13 (Saros 146) | 2150 Jan 13 (Saros 146) | 2178 Dec 24 (Saros 147) | 2178 Dec 24 (Saros 147) |

### Half-Saros cycle

A lunar eclipse will be preceded and followed by solar eclipses by 9 years and 5.5 days (a half saros). This lunar eclipse is related to two solar eclipses of Solar Saros 148.
| April 17, 1996 | April 29, 2014 |