November 2012 lunar eclipse
| Penumbral eclipse | |||||||||
 The northern part of the Moon perceptibly dimmed as the Moon passed through the Earth's penumbral shadow. | |||||||||
| Date | November 28, 2012 | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Gamma | −1.0869 | ||||||||
| Magnitude | −0.1859 | ||||||||
| Saros cycle | 145 (11 of 71) | ||||||||
| Penumbral | 276 minutes, 0 seconds | ||||||||
| |||||||||
A penumbral lunar eclipse occurred at the Moon’s descending node of orbit on Wednesday, November 28, 2012,[1] with an umbral magnitude of −0.1859. 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 3 minutes before apogee (on November 28, 2012, at 14:36 UTC), the Moon's apparent diameter was smaller.[2]
Visibility
The eclipse was completely visible over much of Asia and Australia, seen rising over Europe, the Middle East, and east Africa and setting over North America and the eastern Pacific Ocean.[3]
|
Hourly motion shown right to left |
 The Moon's hourly motion across the Earth's shadow in the constellation of Taurus. |
 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]
| Parameter | Value |
|---|---|
| Penumbral Magnitude | 0.91685 |
| Umbral Magnitude | −0.18589 |
| Gamma | −1.08693 |
| Sun Right Ascension | 16h19m43.5s |
| Sun Declination | -21°26'15.1" |
| Sun Semi-Diameter | 16'12.8" |
| Sun Equatorial Horizontal Parallax | 08.9" |
| Moon Right Ascension | 04h20m01.1s |
| Moon Declination | +20°27'44.7" |
| Moon Semi-Diameter | 14'42.2" |
| Moon Equatorial Horizontal Parallax | 0°53'57.7" |
| ΔT | 66.9 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.
| November 13 Ascending node (new moon) |
November 28 Descending node (full moon) |
|---|---|
 |
|
| Total solar eclipse Solar Saros 133 |
Penumbral lunar eclipse Lunar Saros 145 |
Related eclipses
Eclipses in 2012
- An annular solar eclipse on May 20.
- A partial lunar eclipse on June 4.
- A total solar eclipse on November 13.
- A penumbral lunar eclipse on November 28.
Metonic
- Preceded by: Lunar eclipse of February 9, 2009
- Followed by: Lunar eclipse of September 16, 2016
Tzolkinex
- Preceded by: Lunar eclipse of October 17, 2005
- Followed by: Lunar eclipse of January 10, 2020
Half-Saros
- Preceded by: Solar eclipse of November 23, 2003
- Followed by: Solar eclipse of December 4, 2021
Tritos
- Preceded by: Lunar eclipse of December 30, 2001
- Followed by: Lunar eclipse of October 28, 2023
Lunar Saros 145
- Preceded by: Lunar eclipse of November 18, 1994
- Followed by: Lunar eclipse of December 9, 2030
Inex
- Preceded by: Lunar eclipse of December 20, 1983
- Followed by: Lunar eclipse of November 8, 2041
Triad
- Preceded by: Lunar eclipse of January 28, 1926
- Followed by: Lunar eclipse of September 29, 2099
Lunar eclipses of 2009–2013
This eclipse is the one of four lunar eclipses in a short-lived series. The lunar year series repeats after 12 lunations or 354 days (Shifting back about 10 days in sequential years). Because of the date shift, the Earth's shadow will be about 11 degrees west in sequential events.[citation needed]
| Lunar eclipse series sets from 2009–2013 | ||||||||
|---|---|---|---|---|---|---|---|---|
| Ascending node | Descending node | |||||||
| Saros # Photo |
Date Viewing |
Type chart |
Gamma | Saros # Photo |
Date Viewing |
Type chart |
Gamma | |
| 110 | 2009 Jul 07
|
penumbral
|
−1.4916 | 115
|
2009 Dec 31
|
partial
|
0.9766 | |
120
|
2010 Jun 26
|
partial
|
−0.7091 | 125
|
2010 Dec 21
|
total
|
0.3214 | |
130
|
2011 Jun 15
|
total
|
0.0897 | 135
|
2011 Dec 10
|
total
|
−0.3882 | |
140
|
2012 Jun 04
|
partial
|
0.8248 | 145 | 2012 Nov 28
|
penumbral
|
−1.0869 | |
| 150 | 2013 May 25
|
penumbral
|
1.5351 | |||||
| Last set | 2009 Aug 06 | Last set | 2009 Feb 9 | |||||
| Next set | 2013 Apr 25 | Next set | 2013 Oct 18 | |||||
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 total solar eclipses of Solar Saros 152.
| November 23, 2003 | December 4, 2021 |
|---|---|
|
|
See also
- List of lunar eclipses and List of 21st-century lunar eclipses
- File:2012-11-28 Lunar Eclipse Sketch.gif Chart
References
- ^ "November 28–29, 2012 Penumbral Lunar Eclipse". timeanddate. Retrieved 15 November 2024.
- ^ "Moon Distances for London, United Kingdom, England". timeanddate. Retrieved 15 November 2024.
- ^ "Penumbral Lunar Eclipse of 2012 Nov 28" (PDF). NASA. Retrieved 15 November 2024.
- ^ "Penumbral Lunar Eclipse of 2012 Nov 28". EclipseWise.com. Retrieved 15 November 2024.
- ^ Mathematical Astronomy Morsels, Jean Meeus, p.110, Chapter 18, The half-saros
External links
- 2012 Nov 28 chart: Eclipse Predictions by Fred Espenak, NASA/GSFC
- Penumbral lunar eclipse on 28 November 2012
- NASA: Penumbral Lunar Eclipse of 28 November
