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{{Short description|Penumbral lunar eclipse 16 September 2016}}
{{Infobox lunar eclipse
| type = penumbral
| image = Penumbral eclipse on Sep.16, 2016 (29735793325).jpg
| caption = Penumbral eclipse as viewed from [[Oria, Italy]], 18:54 UTC
| date = September 16, 2016
| gamma = 1.0548
| magnitude = −0.0624
| saros_ser = 147
| saros_no = 9 of 71
| penumbral = 239 minutes, 17 seconds
| p1 = 16:54:40
| greatest = 18:54:17
| p4 = 20:53:57
| previous = August 2016
| next = February 2017
}}
A penumbral [[lunar eclipse]] occurred at the Moon’s [[Lunar node|descending node]] of orbit on Friday, September 16, 2016,<ref>{{cite web|title=September 16–17, 2016 Penumbral Lunar Eclipse|url=https://www.timeanddate.com/eclipse/lunar/2016-september-16|publisher=timeanddate|access-date=16 November 2024}}</ref> with an umbral [[Magnitude of eclipse|magnitude]] of −0.0624. 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 1.8 days before [[Apsis|perigee]] (on September 18, 2016, at 13:00 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=2016&n=136|publisher=timeanddate|access-date=16 November 2024}}</ref>

== Visibility ==
The eclipse was completely visible over [[east Africa]], [[eastern Europe]], [[Asia]], and western [[Australia]], seen rising over [[west Africa]] and [[western Europe]] and setting over eastern Australia and the western [[Pacific Ocean]].<ref>{{cite web|title=Penumbral Lunar Eclipse of 2016 Sep 16|url=https://eclipse.gsfc.nasa.gov/LEplot/LEplot2001/LE2016Sep16N.pdf|publisher=NASA|access-date=16 November 2024}}</ref>

{| class=wikitable width=480
|[[File:Lunar eclipse from moon-2016Sep16.png|315px]]
|[[File:Lunar eclipse chart close-2016Sep16.png|315px]] Hourly motion shown right to left
|- align=center
|colspan=2| [[File:Visibility Lunar Eclipse 2016-09-16.png|640px]] Visibility map
|}

== Gallery ==
[[File:Do you see a lunar eclipse? - видите ли вы лунное затмение? (29656317021).jpg|640px]] Progression as seen from [[Primorsko]], Bulgaria

<Gallery>
Penumbral Lunar Eclipse of Sep 16, 2016.jpg|[[Hefei, China]], 18:03 UTC
2016.09.16 Penumbral Lunar Eclipse (29613161962).jpg|[[Huittinen]], Finland, 18:51 UTC
Lunar Eclipse (29104134764).png|[[Hong Kong]], 19:00 UTC
Partial lunar eclipse 2016.09.16.jpg|[[Rabka-Zdrój]], Poland, 19:09 UTC
2016-09-16 20-30-00 eclipse-lunaire-ann1.gif|[[Belfort]], France, combined images
2016-09-16 20-30-00 eclipse-lunaire-ann2.gif|Progression from Belfort, France
Harvest Moon (29100727543).jpg|[[Helmshore]], England, 20:04 UTC
</Gallery>

== Eclipse details ==
Shown below is a table displaying details about this particular lunar eclipse. It describes various parameters pertaining to this eclipse.<ref>{{cite web|title=Penumbral Lunar Eclipse of 2016 Sep 16|url=https://eclipsewise.com/lunar/LEprime/2001-2100/LE2016Sep16Nprime.html|publisher=EclipseWise.com|access-date=16 November 2024}}</ref>

{|class="wikitable" align="{{{align|left}}}" style="margin:{{#ifeq:{{{align}}}|right|0 0 0.5em 1em|0 1em 0.5em 0}}"
|+September 16, 2016 Lunar Eclipse Parameters
! Parameter
! Value
|-
| Penumbral Magnitude
| 0.90912
|-
| Umbral Magnitude
| −0.06240
|-
| Gamma
| −1.05491
|-
| Sun Right Ascension
| 11h39m09.7s
|-
| Sun Declination
| +02°15'14.2"
|-
| Sun Semi-Diameter
| 15'54.8"
|-
| Sun Equatorial Horizontal Parallax
| 08.7"
|-
| Moon Right Ascension
| 23h40m27.3s
|-
| Moon Declination
| -03°15'36.5"
|-
| Moon Semi-Diameter
| 16'22.8"
|-
| Moon Equatorial Horizontal Parallax
| 1°00'06.8"
|-
| ΔT
| 68.2 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]]. The first and last eclipse in this sequence is separated by one [[month#Synodic month|synodic month]].

{| class="wikitable"
|+ Eclipse season of August–September 2016
! [[August 2016 lunar eclipse|August 18]] Descending node (full moon) !! [[Solar eclipse of September 1, 2016|September 1]] Ascending node (new moon) !! September 16 Descending node (full moon) 
|-
| [[File:Lunar eclipse chart close-2016Aug18.png|200px]] || [[File:SE2016Sep01A.png|200px]] || [[File:Lunar eclipse chart close-2016Sep16.png|200px]]
|- align=center
| [[Lunar eclipse#Types of lunar eclipse|Penumbral lunar eclipse]] Lunar Saros 109 || [[Total eclipse#Types|Annular solar eclipse]] Solar Saros 135 || [[Lunar eclipse#Types of lunar eclipse|Penumbral lunar eclipse]] Lunar Saros 147
|}

== Related eclipses ==
=== Eclipses in 2016 ===
* [[Solar eclipse of March 9, 2016|A total solar eclipse on March 9]].
* [[March 2016 lunar eclipse|A penumbral lunar eclipse on March 23]].
* [[August 2016 lunar eclipse|A penumbral lunar eclipse on August 18]].
* [[Solar eclipse of September 1, 2016|An annular solar eclipse on September 1]].
* '''A penumbral lunar eclipse on September 16.'''

=== Metonic ===
* Preceded by: [[November 2012 lunar eclipse|Lunar eclipse of November 28, 2012]]
* Followed by: [[July 2020 lunar eclipse|Lunar eclipse of July 5, 2020]]

=== Tzolkinex ===
* Preceded by: [[August 2009 lunar eclipse|Lunar eclipse of August 6, 2009]]
* Followed by: [[October 2023 lunar eclipse|Lunar eclipse of October 28, 2023]]

=== Half-Saros ===
* Preceded by: [[Solar eclipse of September 11, 2007]]
* Followed by: [[Solar eclipse of September 21, 2025]]

=== Tritos ===
* Preceded by: [[October 2005 lunar eclipse|Lunar eclipse of October 17, 2005]]
* Followed by: [[August 2027 lunar eclipse|Lunar eclipse of August 17, 2027]]

=== Lunar Saros 147 ===
* Preceded by: [[September 1998 lunar eclipse|Lunar eclipse of September 6, 1998]]
* Followed by: [[September 2034 lunar eclipse|Lunar eclipse of September 28, 2034]]

=== Inex ===
* Preceded by: [[October 1987 lunar eclipse|Lunar eclipse of October 7, 1987]]
* Followed by: [[August 2045 lunar eclipse|Lunar eclipse of August 27, 2045]]

=== Triad ===
* Preceded by: [[November 1929 lunar eclipse|Lunar eclipse of November 17, 1929]]
* Followed by: [[July 2103 lunar eclipse|Lunar eclipse of July 19, 2103]]

=== Lunar eclipses of 2013–2016 ===
{{Lunar eclipse set 2013-2016}}

=== Saros 147 ===
{{Lunar Saros series 147}}

=== Tritos series ===
{{Lunar Tritos series October 2005}}

=== Inex series ===
{{Lunar Inex series September 2016}}

=== 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 partial solar eclipses of [[Solar Saros 154]].
{| class=wikitable
![[Solar eclipse of September 11, 2007|September 11, 2007]]
![[Solar eclipse of September 21, 2025|September 21, 2025]]
|-
|[[File:SE2007Sep11P.png|240px]]
|[[File:SE2025Sep21P.png|240px]]
|}

== See also ==
* [[March 2016 lunar eclipse]], the first 2016 lunar eclipse (penumbral)
* [[August 2016 lunar eclipse]], the second 2016 lunar eclipse (penumbral)
* [[List of lunar eclipses]] and [[List of 21st-century lunar eclipses]]

== References ==
<references />

== External links==
{{Commons category|Lunar eclipse of 2016 September 16}}
* {{LEplot2001 link|2016|Sep|16|N}}
* [http://www.hermit.org/Eclipse/when_lunars.html Hermit eclipse: 23 Mar 2016 - Penumbral Lunar Eclipse]
* [http://spaceweathergallery.com/indiv_upload.php?upload_id=129388&PHPSESSID=u7de2fpr4m5ed23cubpondnh05 Penumbral Lunar Eclipse On Sep. 16, 2016] by Giuseppe Donatiello, [[Oria, Italy]]
* [http://spaceweathergallery.com/indiv_upload.php?upload_id=129377&PHPSESSID=u7de2fpr4m5ed23cubpondnh05 Penumbral Lunar Eclipse on September 16, 2016 ] by Mulham Hindi, [[Makkah, Saudi Arabia]]
{{Lunar eclipses}}

{{DEFAULTSORT:Lunar eclipse 2016-09}}
[[Category:21st-century lunar eclipses|2016-09]]
[[Category:2016 in science]]
[[Category:September 2016]]

September 2016 lunar eclipse - Revision history

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