December 2001 lunar eclipse
| Penumbral eclipse | |||||||||
 Hourly motion shown right to left | |||||||||
| Date | December 30, 2001 | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Gamma | 1.0731 | ||||||||
| Magnitude | −0.1141 | ||||||||
| Saros cycle | 144 (15 of 71) | ||||||||
| Penumbral | 243 minutes, 32 seconds | ||||||||
| |||||||||
A penumbral lunar eclipse occurred at the Moon’s ascending node of orbit on Sunday, December 30, 2001,[1] with an umbral magnitude of −0.1141. 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 3.7 days before perigee (on January 2, 2002, at 2:10 UTC), the Moon's apparent diameter was larger.[2]
Visibility
[edit]The eclipse was completely visible over northeast Asia, the Pacific Ocean, and North America, seen rising over much of Asia and Australia and setting over South America.[3]
|
 The moon's hourly motion across the Earth's shadow in the constellation of Gemini. |
Eclipse details
[edit]Shown below is a table displaying details about this particular solar eclipse. It describes various parameters pertaining to this eclipse.[4]
| Parameter | Value |
|---|---|
| Penumbral Magnitude | 0.89477 |
| Umbral Magnitude | −0.11407 |
| Gamma | 1.07318 |
| Sun Right Ascension | 18h38m16.3s |
| Sun Declination | -23°08'50.7" |
| Sun Semi-Diameter | 16'15.9" |
| Sun Equatorial Horizontal Parallax | 08.9" |
| Moon Right Ascension | 06h38m07.7s |
| Moon Declination | +24°12'18.7" |
| Moon Semi-Diameter | 16'07.4" |
| Moon Equatorial Horizontal Parallax | 0°59'10.2" |
| ΔT | 64.3 s |
Eclipse season
[edit]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.
| December 14 Descending node (new moon) |
December 30 Ascending node (full moon) |
|---|---|
 |
|
| Annular solar eclipse Solar Saros 132 |
Penumbral lunar eclipse Lunar Saros 144 |
Related eclipses
[edit]Eclipses in 2001
[edit]- A total lunar eclipse on January 9.
- A total solar eclipse on June 21.
- A partial lunar eclipse on July 5.
- An annular solar eclipse on December 14.
- A penumbral lunar eclipse on December 30.
Metonic
[edit]- Preceded by: Lunar eclipse of March 13, 1998
- Followed by: Lunar eclipse of October 17, 2005
Tzolkinex
[edit]- Preceded by: Lunar eclipse of November 18, 1994
- Followed by: Lunar eclipse of February 9, 2009
Half-Saros
[edit]- Preceded by: Solar eclipse of December 24, 1992
- Followed by: Solar eclipse of January 4, 2011
Tritos
[edit]- Preceded by: Lunar eclipse of January 30, 1991
- Followed by: Lunar eclipse of November 28, 2012
Lunar Saros 144
[edit]- Preceded by: Lunar eclipse of December 20, 1983
- Followed by: Lunar eclipse of January 10, 2020
Inex
[edit]- Preceded by: Lunar eclipse of January 18, 1973
- Followed by: Lunar eclipse of December 9, 2030
Triad
[edit]- Preceded by: Lunar eclipse of March 1, 1915
- Followed by: Lunar eclipse of October 30, 2088
Lunar eclipses of 1998–2002
[edit]| Lunar eclipse series sets from 1998–2002 | ||||||||
|---|---|---|---|---|---|---|---|---|
| Descending node | Ascending node | |||||||
| Saros | Date Viewing |
Type Chart |
Gamma | Saros | Date Viewing |
Type Chart |
Gamma | |
| 109 | 1998 Aug 08
|
penumbral
|
1.4876 | 114 | 1999 Jan 31
|
penumbral
|
−1.0190 | |
| 119 | 1999 Jul 28
|
partial
|
0.7863 | 124.jpg)
|
2000 Jan 21
|
total
|
−0.2957 | |
| 129 | 2000 Jul 16
|
total
|
0.0302 | 134_(cropped).jpg)
|
2001 Jan 09
|
total
|
0.3720 | |
| 139 | 2001 Jul 05
|
partial
|
−0.7287 | 144 | 2001 Dec 30
|
penumbral
|
1.0732 | |
| 149 | 2002 Jun 24
|
penumbral
|
−1.4440 | |||||
| Last set | 1998 Sep 06 | Last set | 1998 Mar 13 | |||||
| Next set | 2002 May 26 | Next set | 2002 Nov 20 | |||||
Saros 144
[edit]Lunar Saros series 144, repeating every 18 years and 11 days, has a total of 71 lunar eclipse events including 20 total lunar eclipses.
First Penumbral Lunar Eclipse: 1749 Jul 29
First Partial Lunar Eclipse: 2146 Mar 28
First Total Lunar Eclipse: 2308 Jul 04
First Central Lunar Eclipse: 2362 Aug 06
Greatest Eclipse of the Lunar Saros 144: 2416 Sep 07
Last Central Lunar Eclipse: 2488 Oct 20
Last Total Lunar Eclipse: 2651 Jan 28
Last Partial Lunar Eclipse: 2867 Jun 08
Last Penumbral Lunar Eclipse: 3011 Sep 04
Half-Saros cycle
[edit]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 partial solar eclipses of Solar Saros 151.
| December 24, 1992 | January 4, 2011 |
|---|---|
|
|
See also
[edit]References
[edit]- ^ "December 29–30, 2001 Penumbral Lunar Eclipse". timeanddate. Retrieved 12 November 2024.
- ^ "Moon Distances for London, United Kingdom, England". timeanddate. Retrieved 12 November 2024.
- ^ "Penumbral Lunar Eclipse of 2001 Dec 30" (PDF). NASA. Retrieved 12 November 2024.
- ^ "Penumbral Lunar Eclipse of 2001 Dec 30". EclipseWise.com. Retrieved 12 November 2024.
- ^ Mathematical Astronomy Morsels, Jean Meeus, p.110, Chapter 18, The half-saros
External links
[edit]- Saros cycle 144
- 2001 Dec 30 chart: Eclipse Predictions by Fred Espenak, NASA/GSFC
_(cropped).jpg)
 | This lunar eclipse-related article is a stub. You can help Wikipedia by expanding it. |