A penumbral lunar eclipse occurred at the Moon’s descending node of orbit on Sunday, May 26, 2002,[1] with an umbral magnitude of −0.2871. 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 3.1 days after perigee (on May 23, 2002, at 11:30 UTC), the Moon's apparent diameter was larger.[2]
| Penumbral eclipse | |||||||||
 Hourly motion shown right to left | |||||||||
| Date | May 26, 2002 | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Gamma | 1.1758 | ||||||||
| Magnitude | −0.2871 | ||||||||
| Saros cycle | 111 (66 of 71) | ||||||||
| Penumbral | 216 minutes, 34 seconds | ||||||||
| |||||||||
Visibility
editThe eclipse was completely visible over Australia, the Pacific Ocean, and Antarctica, seen rising over much of Asia and setting over much of North America and western South America.[3]
|
 The moon's hourly motion across the Earth's shadow in the constellation of Scorpius. |
In popular culture
editThis eclipse appears in the 2022 film Turning Red, although it differs from actual events. It is depicted as taking place on the evening of 25 May, rather than the early morning hours of 26 May. Additionally, the film takes place in Toronto, where the total eclipse was not visible.
Eclipse details
editShown below is a table displaying details about this particular solar eclipse. It describes various parameters pertaining to this eclipse.[4]
| Parameter | Value |
|---|---|
| Penumbral Magnitude | 0.69104 |
| Umbral Magnitude | −0.28705 |
| Gamma | 1.17591 |
| Sun Right Ascension | 04h12m31.0s |
| Sun Declination | +21°08'37.3" |
| Sun Semi-Diameter | 15'47.3" |
| Sun Equatorial Horizontal Parallax | 08.7" |
| Moon Right Ascension | 16h13m52.1s |
| Moon Declination | -20°01'35.7" |
| Moon Semi-Diameter | 16'08.5" |
| Moon Equatorial Horizontal Parallax | 0°59'14.5" |
| ΔT | 64.3 s |
Eclipse season
editThis 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.
| May 26 Descending node (full moon) |
June 10 Ascending node (new moon) |
June 24 Descending node (full moon) |
|---|---|---|
| |
 |
|
| Penumbral lunar eclipse Lunar Saros 111 |
Annular solar eclipse Solar Saros 137 |
Penumbral lunar eclipse Lunar Saros 149 |
Related eclipses
editEclipses in 2002
edit- A penumbral lunar eclipse on May 26.
- An annular solar eclipse on June 10.
- A penumbral lunar eclipse on June 24.
- A penumbral lunar eclipse on November 20.
- A total solar eclipse on December 4.
Metonic
edit- Preceded by: Lunar eclipse of August 8, 1998
- Followed by: Lunar eclipse of March 14, 2006
Tzolkinex
edit- Preceded by: Lunar eclipse of April 15, 1995
- Followed by: Lunar eclipse of July 7, 2009
Half-Saros
edit- Preceded by: Solar eclipse of May 21, 1993
- Followed by: Solar eclipse of June 1, 2011
Tritos
edit- Preceded by: Lunar eclipse of June 27, 1991
- Followed by: Lunar eclipse of April 25, 2013
Lunar Saros 111
edit- Preceded by: Lunar eclipse of May 15, 1984
- Followed by: Lunar eclipse of June 5, 2020
Inex
edit- Preceded by: Lunar eclipse of June 15, 1973
- Followed by: Lunar eclipse of May 7, 2031
Triad
edit- Preceded by: Lunar eclipse of July 26, 1915
- Followed by: Lunar eclipse of March 26, 2089
Lunar eclipses of 2002–2005
edit| 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_(cropped).jpg)
|
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 111
editLunar Saros 111, repeating every 18 years and 11 days, has a total of 71 lunar eclipse events including 11 total lunar eclipses. The first total lunar eclipse of this series was on 19 April 1353, and last was on 4 August 1533. The longest occurrence of this series was on 12 June 1443 when the totality lasted 106 minutes.
Metonic series
editFirst eclipse: May 26, 2002. Second eclipse: 26 May 2021. Third eclipse: 26 May 2040. Fourth eclipse: 27 May 2059.
Half-Saros cycle
editA 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 partial solar eclipses of Solar Saros 118.
| May 21, 1993 | June 1, 2011 |
|---|---|
|
|
See also
editReferences
edit- ^ "May 26, 2002 Penumbral Lunar Eclipse". timeanddate. Retrieved 12 November 2024.
- ^ "Moon Distances for London, United Kingdom, England". timeanddate. Retrieved 12 November 2024.
- ^ "Penumbral Lunar Eclipse of 2002 May 26" (PDF). NASA. Retrieved 12 November 2024.
- ^ "Penumbral Lunar Eclipse of 2002 May 26". EclipseWise.com. Retrieved 12 November 2024.
- ^ Mathematical Astronomy Morsels, Jean Meeus, p.110, Chapter 18, The half-saros
External links
edit- Saros cycle 111
- 2002 May 26 chart: Eclipse Predictions by Fred Espenak, NASA/GSFC
- http://www.eclipse.org.uk/eclipse/1132002/[permanent dead link]
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