October 2013 lunar eclipse
{{Short description|Penumbral lunar eclipse 18 October 2013}}
{{Use dmy dates|date=August 2018}}
{{Infobox lunar eclipse
| type = penumbral
| image = MG 8074 (10353408985) (cropped).jpg
| caption = Penumbral eclipse as viewed from Washington, D.C., 23:53 UTC
| date = 18 October 2013
| gamma = 1.1508
| magnitude = −0.2706
| saros_ser = 117
| saros_no = 52 of 72
| penumbral = 239 minutes, 6 seconds
| p1 = 21:50:41
| greatest = 23:50:17
| p4 = 1:49:47
| previous = May 2013
| next = April 2014
}}
A penumbral lunar eclipse occurred at the Moon’s descending node of orbit on Friday, 18 October 2013,{{cite web|title=October 18–19, 2013 Penumbral Lunar Eclipse|url=https://www.timeanddate.com/eclipse/lunar/2013-october-18|publisher=timeanddate|access-date=15 November 2024}} 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).{{cite web|title=Moon Distances for London, United Kingdom, England|url=https://www.timeanddate.com/astronomy/moon/distance.html?year=2013&n=136|publisher=timeanddate|access-date=15 November 2024}}
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.{{cite web|title=Penumbral Lunar Eclipse of 2013 Oct 18|url=https://eclipse.gsfc.nasa.gov/LEplot/LEplot2001/LE2013Oct18N.pdf|publisher=NASA|access-date=15 November 2024}}
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Images
File:2013-10-18 Lunar Eclipse Sketch.png
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Gallery
Penumbral Eclipse in very cloudy skies. (10354279925).jpg|Kennesaw, Georgia, 0:16 UTC
Eclipse details
Shown below is a table displaying details about this particular solar eclipse. It describes various parameters pertaining to this eclipse.{{cite web|title=Penumbral Lunar Eclipse of 2013 Oct 18|url=https://eclipsewise.com/lunar/LEprime/2001-2100/LE2013Oct18Nprime.html|publisher=EclipseWise.com|access-date=15 November 2024}}
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|+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 |
{{clear}}
Eclipse season
{{See also|Eclipse cycle}}
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.
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|+ Eclipse season of October–November 2013 ! October 18 | |
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| Penumbral lunar eclipse | 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
= Lunar eclipses of 2013–2016 =
{{Lunar eclipse set 2013-2016}}
= Saros 117 =
{{Lunar Saros series 117}}
= Tritos series =
{{Lunar Tritos series November 2002}}
= Inex series =
{{Lunar Inex series October 2013}}
= 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.
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See also
References
{{reflist}}
External links
- {{LEplot2001 link|2013|Oct|18|N}}
- [http://www.hermit.org/Eclipse/when_lunars.html Hermit eclipse: 23 Mar 2016 – Penumbral Lunar Eclipse]
- [http://www.eclipsegeeks.com/lunar-eclipse-october-2013/4580168583 Eclipse Geeks Penumbra Lunar Eclipse 18/19 October 2013] {{Webarchive|url=https://web.archive.org/web/20200225120644/http://www.eclipsegeeks.com/lunar-eclipse-october-2013/4580168583 |date=25 February 2020 }}
{{Commons category|Lunar eclipse of 2013 October 18}}
{{Lunar eclipses}}
{{DEFAULTSORT:Lunar eclipse 2013-10}}