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{{Short description|Penumbral lunar eclipse 11 February 2017}}
{{Use dmy dates|date=April 2017}}
{{Infobox lunar eclipse
| type = penumbral
| image = Penumbral lunar eclipse 2017.02.11.jpg
| caption = Penumbral eclipse as viewed from [[Rabka-Zdrój]], [[Poland]], 0:51 UTC
| date = February 11, 2017
| gamma = -1.0254
| magnitude = −0.0342
| saros_ser = 114
| saros_no = 59 of 71
| penumbral = 259 minutes, 10 seconds
| p1 = 22:34:16
| greatest = 0:43:53
| p4 = 2:53:26
| previous = September 2016
| next = August 2017
}}
A penumbral [[lunar eclipse]] occurred at the Moon’s [[Lunar node|ascending node]] of orbit on Saturday, February 11, 2017,<ref>{{cite web|title=February 10–11, 2017 Penumbral Lunar Eclipse|url=https://www.timeanddate.com/eclipse/lunar/2017-february-11|publisher=timeanddate|access-date=16 November 2024}}</ref> with an umbral [[Magnitude of eclipse|magnitude]] of −0.0342. It was not quite a [[total penumbral lunar eclipse]]. 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 about 4.6 days before [[Apsis|perigee]] (on February 6, 2017, at 9:00 UTC), the Moon's apparent diameter was larger.<ref>{{cite web|title=Moon Distances for London, United Kingdom, England|url=https://www.timeanddate.com/astronomy/moon/distance.html?year=2017&n=136|publisher=timeanddate|access-date=16 November 2024}}</ref>

This eclipse occurred the same day as comet [[45P/Honda–Mrkos–Pajdušáková#2017 passage|45P/Honda–Mrkos–Pajdušáková]] made a close approach to Earth (0.08318 [[Astronomical unit|AU]]). It also occurred on the [[Lantern Festival]], the first eclipse to do so since [[February 2009 lunar eclipse|February 9, 2009]].

== Visibility ==
The eclipse was completely visible over northeastern [[North America]], eastern [[South America]], [[Europe]], [[Africa]], and [[west Asia]], seen rising over much of North America and western South America and setting over [[south Asia|south]] and [[east Asia]].<ref>{{cite web|title=Penumbral Lunar Eclipse of 2017 Feb 11|url=https://eclipse.gsfc.nasa.gov/LEplot/LEplot2001/LE2017Feb11N.pdf|publisher=NASA|access-date=17 November 2024}}</ref>

{| class=wikitable width=480
|[[File:Lunar eclipse from moon-2017Feb11.png|315px]]
|[[File:Lunar eclipse chart close-2017Feb11.png|315px]] Hourly motion shown right to left
|- align=center
|colspan=2| [[File:Visibility Lunar Eclipse 2017-02-11.png|640px]] Visibility map
|}

== Gallery ==
<Gallery>
Eclipse penumbral de luna 10 de febrero de 2017 (32113541604).jpg|[[Popayán, Colombia]], 23:43 UTC (10 February)
"Snow Moon" (32828803125).jpg|[[Kissimmee, Florida]], 0:00 UTC
Moon (32787383146).jpg|[[Tampa, Florida]], 0:11 UTC
Full Snow Moon and Eclipse. (32830589985).jpg|Time lapse images from [[Melbourne, Florida]]
Penumbral eclipse of the Moon 2017 (32705078711).jpg|[[Bracciano, Italy]], 0:29 UTC
Full Moon and Penumbral Eclipse on 2-10-17 (32707190401).jpg|[[Macon, Georgia]], 0:38 UTC
Lunar eclipse 2-10 (32850077545).jpg|[[Naperville, Illinois]], 1:23 UTC
Innsbruck, Austria (Unsplash XA6OmUYqn4k).jpg|[[Innsbruck, Austria]], ~2:00 UTC
</Gallery>

== Eclipse details ==
Shown below is a table displaying details about this particular solar eclipse. It describes various parameters pertaining to this eclipse.<ref>{{cite web|title=Penumbral Lunar Eclipse of 2017 Feb 11|url=https://eclipsewise.com/lunar/LEprime/2001-2100/LE2017Feb11Nprime.html|publisher=EclipseWise.com|access-date=17 November 2024}}</ref>

{|class="wikitable" align="{{{align|left}}}" style="margin:{{#ifeq:{{{align}}}|right|0 0 0.5em 1em|0 1em 0.5em 0}}"
|+February 11, 2017 Lunar Eclipse Parameters
! Parameter
! Value
|-
| Penumbral Magnitude
| 0.98956
|-
| Umbral Magnitude
| −0.03421
|-
| Gamma
| −1.02548
|-
| Sun Right Ascension
| 21h39m19.2s
|-
| Sun Declination
| -14°01'07.8"
|-
| Sun Semi-Diameter
| 16'12.3"
|-
| Sun Equatorial Horizontal Parallax
| 08.9"
|-
| Moon Right Ascension
| 09h38m22.6s
|-
| Moon Declination
| +13°03'10.2"
|-
| Moon Semi-Diameter
| 15'49.8"
|-
| Moon Equatorial Horizontal Parallax
| 0°58'05.6"
|-
| ΔT
| 68.3 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]].

{| class="wikitable"
|+ Eclipse season of February 2017
! February 11 Ascending node (full moon) !! [[Solar eclipse of February 26, 2017|February 26]] Descending node (new moon) 
|-
| [[File:Lunar eclipse chart close-2017Feb11.png|200px]] || [[File:SE2017Feb26A.png|200px]]
|- align=center
| [[Lunar eclipse#Types of lunar eclipse|Penumbral lunar eclipse]] Lunar Saros 114 || [[Total eclipse#Types|Annular solar eclipse]] Solar Saros 140
|}

== Related eclipses ==
=== Eclipses in 2017 ===
* '''A penumbral lunar eclipse on February 11.'''
* [[Solar eclipse of February 26, 2017|An annular solar eclipse on February 26]].
* [[August 2017 lunar eclipse|A partial lunar eclipse on August 7]].
* [[Solar eclipse of August 21, 2017|A total solar eclipse on August 21]].

=== Metonic ===
* Preceded by: [[April 2013 lunar eclipse|Lunar eclipse of April 25, 2013]]
* Followed by: [[November 2020 lunar eclipse|Lunar eclipse of November 30, 2020]]

=== Tzolkinex ===
* Preceded by: [[December 2009 lunar eclipse|Lunar eclipse of December 31, 2009]]
* Followed by: [[March 2024 lunar eclipse|Lunar eclipse of March 25, 2024]]

=== Half-Saros ===
* Preceded by: [[Solar eclipse of February 7, 2008]]
* Followed by: [[Solar eclipse of February 17, 2026]]

=== Tritos ===
* Preceded by: [[March 2006 lunar eclipse|Lunar eclipse of March 14, 2006]]
* Followed by: [[January 2028 lunar eclipse|Lunar eclipse of January 12, 2028]]

=== Lunar Saros 114 ===
* Preceded by: [[January 1999 lunar eclipse|Lunar eclipse of January 31, 1999]]
* Followed by: [[February 2035 lunar eclipse|Lunar eclipse of February 22, 2035]]

=== Inex ===
* Preceded by: [[March 1988 lunar eclipse|Lunar eclipse of March 3, 1988]]
* Followed by: [[January 2046 lunar eclipse|Lunar eclipse of January 22, 2046]]

=== Triad ===
* Preceded by: [[April 1930 lunar eclipse|Lunar eclipse of April 13, 1930]]
* Followed by: [[December 2103 lunar eclipse|Lunar eclipse of December 13, 2103]]

=== Lunar eclipses of 2016–2020 ===
{{Lunar eclipse set 2016-2020}}

=== Saros 114 ===
{{Lunar Saros series 114}}

=== Tritos series ===
{{Lunar Tritos series March 2006}}

=== Inex series ===
{{Lunar Inex series February 2017}}

=== Half-Saros cycle ===
A lunar eclipse will be preceded and followed by solar eclipses by 9 years and 5.5 days (a [[Saros (astronomy)#Relationship between lunar and solar saros .28sar.29|half saros]]).<ref>Mathematical Astronomy Morsels, Jean Meeus, p.110, Chapter 18, ''The half-saros''</ref> This lunar eclipse is related to two annular solar eclipses of [[Solar Saros 121]].
{| class=wikitable
![[Solar eclipse of February 7, 2008|February 7, 2008]]
![[Solar eclipse of February 17, 2026|February 17, 2026]]
|-
|[[File:SE2008Feb07A.png|240px]]
|[[File:SE2026Feb17A.png|240px]]
|}

== See also ==
* [[List of lunar eclipses]] and [[List of 21st-century lunar eclipses]]

==References==
{{reflist}}

== External links==
{{Commons category|Lunar eclipse of 2017 February 11}}
* {{LEplot2001 link|2017|Feb|11|N}}
* [http://www.hermit.org/Eclipse/when_lunars.html 11 Feb 2017 - Penumbral Lunar Eclipse - Penumbral Lunar Eclipse]
* [https://www.samaa.tv/pakistan/2017/02/pakistan-to-witness-lunar-eclipse-on-february-11/ Pakistan to witness lunar eclipse on February 11]
{{Lunar eclipses}}

{{DEFAULTSORT:Lunar eclipse 2017-02}}
[[Category:21st-century lunar eclipses|2017-02]]
[[Category:2017 in science]]
[[Category:February 2017]]

February 2017 lunar eclipse - Revision history

imported>BunnysBot: Fix CW Errors with GenFixes (T1), removed stub tag