October 2013 lunar eclipse
A penumbral lunar eclipse occurred at the Moon’s descending node of orbit on Friday, 18 October 2013, with an umbral magnitude of −0.2706. 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. The Moon's apparent diameter was near the average diameter because it occurred 8.2 days after perigee and 6.9 days before apogee.
Visibility
The eclipse was completely visible over Africa, Europe, eastern South America, and west Asia, seen rising over western South America and North America and setting over south and east Asia.Visibility map |
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 | 0.76603 |
| Umbral Magnitude | −0.27064 |
| Gamma | 1.15082 |
| Sun Right Ascension | 13h35m31.9s |
| Sun Declination | -09°57'14.9" |
| Sun Semi-Diameter | 16'03.4" |
| Sun Equatorial Horizontal Parallax | 08.8" |
| Moon Right Ascension | 01h34m19.6s |
| Moon Declination | +11°00'12.1" |
| Moon Semi-Diameter | 15'29.3" |
| Moon Equatorial Horizontal Parallax | 0°56'50.7" |
| ΔT | 67.2 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.| October 18 Descending node | November 3 Ascending node |
| Penumbral lunar eclipse Lunar Saros 117 | Hybrid solar eclipse Solar Saros 143 |
Related eclipses
Eclipses in 2013
- A partial lunar eclipse on 25 April.
- An annular solar eclipse on 10 May.
- A penumbral lunar eclipse on 25 May.A penumbral lunar eclipse on 18 October.
- A hybrid solar eclipse on 3 November.
Metonic
- Preceded by: Lunar eclipse of 31 December 2009
- Followed by: Lunar eclipse of 7 August 2017
Tzolkinex
- Preceded by: Lunar eclipse of 7 September 2006
- Followed by: Lunar eclipse of 30 November 2020
Half-Saros
- Preceded by: Solar eclipse of 14 October 2004
- Followed by: Solar eclipse of 25 October 2022
Tritos
- Preceded by: Lunar eclipse of 20 November 2002
- Followed by: Lunar eclipse of 18 September 2024
Lunar Saros 117
- Preceded by: Lunar eclipse of 8 October 1995
- Followed by: Lunar eclipse of 30 October 2031
Inex
- Preceded by: Lunar eclipse of 8 November 1984
- Followed by: Lunar eclipse of 29 September 2042
Triad
- Preceded by: Lunar eclipse of 19 December 1926
- Followed by: Lunar eclipse of 19 August 2100
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 124.| October 14, 2004 | October 25, 2022 |