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2025-03-22T01:54:29Z

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{{short description|Astronomical event}}
{{Infobox lunar eclipse
| type = partial
| image = Lunar eclipse chart close-2026Aug28.png
| caption = The Moon's hourly motion shown right to left
| date = August 28, 2026
| gamma = −0.4694
| magnitude = 0.9319
| saros_ser = 138
| saros_no = 30 of 83
| totality =
| partiality = 198 minutes, 7 seconds
| penumbral = 337 minutes, 46 seconds
| p1 = 1:23:55
| u1 = 2:33:48
| u2 =
| greatest = 4:12:49
| u3 =
| u4 = 5:51:55
| p4 = 7:01:41
| previous = March 2026
| next = February 2027
}}
A partial [[lunar eclipse]] will occur at the Moon’s [[Lunar node|ascending node]] of orbit on Friday, August 28, 2026,<ref>{{cite web|title=August 27–28, 2026 Partial Lunar Eclipse|url=https://www.timeanddate.com/eclipse/lunar/2026-august-28|publisher=timeanddate|access-date=19 November 2024}}</ref> with an umbral [[Magnitude of eclipse|magnitude]] of 0.9319. A lunar eclipse occurs when the [[Moon]] moves into the [[Earth's shadow]], causing the Moon to be darkened. A partial lunar eclipse occurs when one part of the Moon is in the Earth's umbra, while the other part is in 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 6 days after [[Apsis|perigee]] (on August 22, 2026, at 4:20 UTC), the Moon's apparent diameter will be larger.<ref>{{cite web|title=Moon Distances for London, United Kingdom, England|url=https://www.timeanddate.com/astronomy/moon/distance.html?year=2026&n=136|publisher=timeanddate|access-date=19 November 2024}}</ref>

This lunar eclipse will be the last of an [[Tetrad (astronomy)|almost tetrad]], with the others being on [[March 2025 lunar eclipse|March 14, 2025]] (total); [[September 2025 lunar eclipse|September 8, 2025]] (total); and [[March 2026 lunar eclipse|March 3, 2026]] (total).

== Visibility ==
The eclipse will be completely visible over [[North America|North]] and [[South America]], seen rising over the central [[Pacific Ocean]] and setting over [[Africa]], [[Europe]], and the [[Middle East]].<ref>{{cite web|title=Partial Lunar Eclipse of 2026 Aug 28|url=https://eclipse.gsfc.nasa.gov/LEplot/LEplot2001/LE2026Aug28P.pdf|publisher=NASA|access-date=19 November 2024}}</ref>

{| class=wikitable
|[[File:Lunar eclipse from moon-2026Aug28.png|300px]] [[File:Lunar eclipse chart close-2026Aug28.png|300px]]
|}

== Eclipse details ==
Shown below is a table displaying details about this particular eclipse. It describes various parameters pertaining to this eclipse.<ref>{{cite web|title=Partial Lunar Eclipse of 2026 Aug 28|url=https://eclipsewise.com/lunar/LEprime/2001-2100/LE2026Aug28Pprime.html|publisher=EclipseWise.com|access-date=19 November 2024}}</ref>

{|class="wikitable" align="{{{align|left}}}" style="margin:{{#ifeq:{{{align}}}|right|0 0 0.5em 1em|0 1em 0.5em 0}}"
|+August 28, 2026 Lunar Eclipse Parameters
! Parameter
! Value
|-
| Penumbral Magnitude
| 1.96645
|-
| Umbral Magnitude
| 0.93187
|-
| Gamma
| 0.49644
|-
| Sun Right Ascension
| 10h26m57.9s
|-
| Sun Declination
| +09°42'52.7"
|-
| Sun Semi-Diameter
| 15'50.0"
|-
| Sun Equatorial Horizontal Parallax
| 08.7"
|-
| Moon Right Ascension
| 22h26m06.3s
|-
| Moon Declination
| -09°18'03.6"
|-
| Moon Semi-Diameter
| 15'18.2"
|-
| Moon Equatorial Horizontal Parallax
| 0°56'09.9"
|-
| ΔT
| 72.3 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 August 2026
! [[Solar eclipse of August 12, 2026|August 12]] Descending node (new moon) !! [[August 2026 lunar eclipse|August 28]] Ascending node (full moon) 
|-
| [[File:SE2026Aug12T.png|200px]] || [[File:Lunar eclipse chart close-2026Aug28.png|200px]]
|- align=center
| [[Total eclipse#Types|Total solar eclipse]] Solar Saros 126 || [[Lunar eclipse#Types of lunar eclipse|Partial lunar eclipse]] Lunar Saros 138
|}

== Related eclipses ==
=== Eclipses in 2026 ===
* [[Solar eclipse of February 17, 2026|An annular solar eclipse on February 17]].
* [[March 2026 lunar eclipse|A total lunar eclipse on March 3]].
* [[Solar eclipse of August 12, 2026|A total solar eclipse on August 12]].
* '''A partial lunar eclipse on August 28.'''

=== Metonic ===
* Preceded by: [[November 2022 lunar eclipse|Lunar eclipse of November 8, 2022]]
* Followed by: [[June 2030 lunar eclipse|Lunar eclipse of June 15, 2030]]

=== Tzolkinex ===
* Preceded by: [[July 2019 lunar eclipse|Lunar eclipse of July 16, 2019]]
* Followed by: [[October 2033 lunar eclipse|Lunar eclipse of October 8, 2033]]

=== Half-Saros ===
* Preceded by: [[Solar eclipse of August 21, 2017]]
* Followed by: [[Solar eclipse of September 2, 2035]]

=== Tritos ===
* Preceded by: [[September 2015 lunar eclipse|Lunar eclipse of September 28, 2015]]
* Followed by: [[July 2037 lunar eclipse|Lunar eclipse of July 27, 2037]]

=== Lunar Saros 138 ===
* Preceded by: [[August 2008 lunar eclipse|Lunar eclipse of August 16, 2008]]
* Followed by: [[September 2044 lunar eclipse|Lunar eclipse of September 7, 2044]]

=== Inex ===
* Preceded by: [[September 1997 lunar eclipse|Lunar eclipse of September 16, 1997]]
* Followed by: [[August 2055 lunar eclipse|Lunar eclipse of August 7, 2055]]

=== Triad ===
* Preceded by: [[October 1939 lunar eclipse|Lunar eclipse of October 28, 1939]]
* Followed by: [[June 2113 lunar eclipse|Lunar eclipse of June 29, 2113]]

=== Lunar eclipses of 2024–2027 ===
{{Lunar eclipse set 2024-2027}}

=== Metonic series ===
{{Metonic lunar eclipse 1988-2045}}

=== Saros 138 ===
{{Lunar Saros series 138}}

=== Tritos series ===
{{Lunar Tritos series October 2004}}

=== Inex series ===
{{Lunar Inex series August 2026}}

=== 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 total solar eclipses of [[Solar Saros 145]].

{| class=wikitable
![[Solar eclipse of August 21, 2017|August 21, 2017]]
![[Solar eclipse of September 2, 2035|September 2, 2035]]
|-
|[[File:SE2017Aug21T.png|240px]]
|[[File:SE2035Sep02T.png|240px]]
|}

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

==Notes==
{{Reflist}}

==External links==
*[http://www.hermit.org/eclipse/gen_stats.cgi?mode=query&page=full&qtype=type&body=L&saros=138 Saros cycle 138]
*{{LEplot2001 link|2026|Aug|28|P}}

{{Lunar eclipses}}

{{DEFAULTSORT:Lunar eclipse 2026-08}}
[[Category:21st-century lunar eclipses|2026-08]]
[[Category:Future lunar eclipses|2026-08]]
[[Category:2026 in science]]

August 2026 lunar eclipse - Revision history

imported>Bog dog log at 01:54, 22 March 2025