October 2005 lunar eclipse
A partial lunar eclipse occurred at the Moon’s ascending node of orbit on Monday, October 17, 2005, with an umbral magnitude of 0.0645. A lunar eclipse occurs when the Moon moves into the Earth's shadow, causing the Moon to be darkened. A partial lunar eclipse occurs when one part of the Moon is in the Earth's umbra, while the other part is in 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 before perigee, the Moon's apparent diameter was larger.
Visibility
The eclipse was completely visible much of Australia, east Asia, and western North America, seen rising over much of Asia and setting over much of North America and western South America.Eclipse details
Shown below is a table displaying details about this particular lunar eclipse. It describes various parameters pertaining to this eclipse.| Parameter | Value |
| Penumbral Magnitude | 1.06046 |
| Umbral Magnitude | 0.06446 |
| Gamma | 0.97960 |
| Sun Right Ascension | 13h29m41.7s |
| Sun Declination | -09°23'29.0" |
| Sun Semi-Diameter | 16'03.1" |
| Sun Equatorial Horizontal Parallax | 08.8" |
| Moon Right Ascension | 01h27m54.2s |
| Moon Declination | +10°15'01.0" |
| Moon Semi-Diameter | 16'06.9" |
| Moon Equatorial Horizontal Parallax | 0°59'08.7" |
| ΔT | 64.8 s |
Eclipse season
This eclipse is part of an eclipse season, a period, roughly every six months, when eclipses occur. Only two eclipse seasons occur each year, and each season lasts about 35 days and repeats just short of six months 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.| Solar eclipse of [October 3, 2005|October 3] Descending node | October 17 Ascending node |
| Annular solar eclipse Solar Saros 134 | Partial lunar eclipse Lunar Saros 146 |
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 December 30, 2001
- Followed by: Lunar eclipse of August 6, 2009
Tzolkinex
- Preceded by: Lunar eclipse of September 6, 1998
- Followed by: Lunar eclipse of November 28, 2012
Half-Saros
- Preceded by: Solar eclipse of October 12, 1996
- Followed by: Solar eclipse of October 23, 2014
Tritos
- Preceded by: Lunar eclipse of November 18, 1994
- Followed by: Lunar eclipse of September 16, 2016
Lunar Saros 146
- Preceded by: Lunar eclipse of October 7, 1987
- Followed by: Lunar eclipse of October 28, 2023
Inex
- Preceded by: Lunar eclipse of November 6, 1976
- Followed by: Lunar eclipse of September 28, 2034
Triad
- Preceded by: Lunar eclipse of December 17, 1918
- Followed by: Lunar eclipse of August 17, 2092
Half-Saros cycle
A lunar eclipse will be preceded and followed by solar eclipses by 9 years and 5.5 days. This lunar eclipse is related to two partial solar eclipses of Solar Saros 153.| October 12, 1996 | October 23, 2014 |