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 (on 10 October 2013, at 19:15 UTC) and 6.9 days before apogee (on 25 October 2013, at 10:25 UTC).
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
Images
Gallery
Eclipse details Shown below is a table displaying details about this particular lunar eclipse. It describes various parameters pertaining to this eclipse.
+18 October 2013 Lunar Eclipse Parameters 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 (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.
+ Eclipse season of October–November 2013 October 18Descending node (full moon) November 3Ascending node (new moon) Penumbral lunar eclipseLunar Saros 117 Hybrid solar eclipseSolar 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
Lunar eclipses of 2013–2016
Saros 117
Tritos series
Inex series
Half-Saros cycle A lunar eclipse will be preceded and followed by solar eclipses by 9 years and 5.5 days (a half saros).Mathematical Astronomy Morsels, Jean Meeus, p.110, Chapter 18, The half-saros This lunar eclipse is related to two partial solar eclipses of Solar Saros 124. October 14, 2004October 25, 2022
See also List of lunar eclipses and List of 21st-century lunar eclipses
References
External links
Hermit eclipse: 23 Mar 2016 – Penumbral Lunar Eclipse Eclipse Geeks Penumbra Lunar Eclipse 18/19 October 2013