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Related eclipses

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{{Short description|Total lunar eclipse (October 28, 1985)}}
{{Infobox lunar eclipse
| type = total
| image = Lunar eclipse chart close-1985Oct28.png
| caption = The Moon's hourly motion shown right to left
| date = October 28, 1985
| gamma = −0.4022
| magnitude = 1.0736
| saros_ser = 126
| saros_no = 44 of 72
| totality = 43 minutes, 52 seconds
| partiality = 214 minutes, 57 seconds
| penumbral = 365 minutes, 3 seconds
| p1 = 14:39:51
| u1 = 15:54:53
| u2 = 17:20:26
| greatest = 17:42:22
| u3 = 18:04:18
| u4 = 19:29:50
| p4 = 20:44:54
| previous = May 1985
| next = April 1986
}}
A total [[lunar eclipse]] occurred at the Moon’s [[Lunar node|ascending node]] of orbit on Monday, October 28, 1985,<ref>{{cite web|title=October 28–29, 1985 Total Lunar Eclipse (Blood Moon)|url=https://www.timeanddate.com/eclipse/lunar/1985-october-28|publisher=timeanddate|access-date=6 January 2025}}</ref> with an umbral [[Magnitude of eclipse|magnitude]] of 1.0736. A lunar eclipse occurs when the [[Moon]] moves into the [[Earth's shadow]], causing the Moon to be darkened. A total lunar eclipse occurs when the Moon's near side entirely passes into the Earth's umbral shadow. 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. A total lunar eclipse can last up to nearly two hours, while a total solar eclipse lasts only a few minutes at any given place, because the Moon's [[Umbra, penumbra and antumbra|shadow]] is smaller. Occurring about 1.2 days before [[Apsis|apogee]] (on October 29, 1985, at 21:50 UTC), the Moon's apparent diameter was smaller.<ref>{{cite web|title=Moon Distances for London, United Kingdom, England|url=https://www.timeanddate.com/astronomy/moon/distance.html?year=1985&n=136|publisher=timeanddate|access-date=6 January 2025}}</ref>

This lunar eclipse was the second of a [[Tetrad (astronomy)|tetrad]], with four total lunar eclipses in series, the others being on [[May 1985 lunar eclipse|May 4, 1985]]; [[April 1986 lunar eclipse|April 24, 1986]]; and [[October 1986 lunar eclipse|October 17, 1986]].

== Visibility ==
The eclipse was completely visible over [[northern Europe]], [[Asia]], and western [[Australia]], seen rising over [[Africa]] and much of [[Europe]] and setting over eastern Australia, northwestern [[North America]], and the central [[Pacific Ocean]].<ref>{{cite web|title=Total Lunar Eclipse of 1985 Oct 28|url=https://eclipse.gsfc.nasa.gov/LEplot/LEplot1951/LE1985Oct28T.pdf|publisher=NASA|access-date=6 January 2025}}</ref>

{| class=wikitable
|[[File:Lunar eclipse from moon-1985Oct28.png|300px]] [[File:Lunar eclipse chart close-1985Oct28.png|300px]]
|}

== 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=Total Lunar Eclipse of 1985 Oct 28|url=https://eclipsewise.com/lunar/LEprime/1901-2000/LE1985Oct28Tprime.html|publisher=EclipseWise.com|access-date=6 January 2025}}</ref>

{|class="wikitable" align="{{{align|left}}}" style="margin:{{#ifeq:{{{align}}}|right|0 0 0.5em 1em|0 1em 0.5em 0}}"
|+October 28, 1985 Lunar Eclipse Parameters
! Parameter
! Value
|-
| Penumbral Magnitude
| 2.16733
|-
| Umbral Magnitude
| 1.07357
|-
| Gamma
| −0.40218
|-
| Sun Right Ascension
| 14h11m49.8s
|-
| Sun Declination
| -13°16'24.9"
|-
| Sun Semi-Diameter
| 16'06.1"
|-
| Sun Equatorial Horizontal Parallax
| 08.9"
|-
| Moon Right Ascension
| 02h12m27.9s
|-
| Moon Declination
| +12°56'45.9"
|-
| Moon Semi-Diameter
| 14'43.3"
|-
| Moon Equatorial Horizontal Parallax
| 0°54'01.6"
|-
| ΔT
| 54.8 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 October–November 1985
! [[October 1985 lunar eclipse|October 28]] Ascending node (full moon) !! [[Solar eclipse of November 12, 1985|November 12]] Descending node (new moon) 
|-
| [[File:Lunar eclipse chart close-1985Oct28.png|200px]] || [[File:SE1985Nov12T.png|200px]]
|- align=center
| [[Lunar eclipse#Types of lunar eclipse|Total lunar eclipse]] Lunar Saros 126 || [[Total eclipse#Types|Total solar eclipse]] Solar Saros 152
|}

== Related eclipses ==
=== Eclipses in 1985 ===
* [[May 1985 lunar eclipse|A total lunar eclipse on May 4]].
* [[Solar eclipse of May 19, 1985|A partial solar eclipse on May 19]].
* '''A total lunar eclipse on October 28.'''
* [[Solar eclipse of November 12, 1985|A total solar eclipse on November 12]].

=== Metonic ===
* Preceded by: [[January 1982 lunar eclipse|Lunar eclipse of January 9, 1982]]
* Followed by: [[August 1989 lunar eclipse|Lunar eclipse of August 17, 1989]]

=== Tzolkinex ===
* Preceded by: [[September 1978 lunar eclipse|Lunar eclipse of September 16, 1978]]
* Followed by: [[December 1992 lunar eclipse|Lunar eclipse of December 9, 1992]]

=== Half-Saros ===
* Preceded by: [[Solar eclipse of October 23, 1976]]
* Followed by: [[Solar eclipse of November 3, 1994]]

=== Tritos ===
* Preceded by: [[November 1974 lunar eclipse|Lunar eclipse of November 29, 1974]]
* Followed by: [[September 1996 lunar eclipse|Lunar eclipse of September 27, 1996]]

=== Lunar Saros 126 ===
* Preceded by: [[October 1967 lunar eclipse|Lunar eclipse of October 18, 1967]]
* Followed by: [[November 2003 lunar eclipse|Lunar eclipse of November 9, 2003]]

=== Inex ===
* Preceded by: [[November 1956 lunar eclipse|Lunar eclipse of November 18, 1956]]
* Followed by: [[October 2014 lunar eclipse|Lunar eclipse of October 8, 2014]]

=== Triad ===
* Preceded by: [[December 1898 lunar eclipse|Lunar eclipse of December 27, 1898]]
* Followed by: [[August 2072 lunar eclipse|Lunar eclipse of August 28, 2072]]

=== Lunar eclipses of 1984–1987 ===
{{Lunar eclipse set 1984-1987}}

=== Metonic series ===
{{Metonic lunar eclipse 1966-2023}}

=== Saros 126 ===
{{Lunar Saros series 126}}

=== Tritos series ===
{{Lunar Tritos series August 2007}}

=== Inex series ===
{{Lunar Inex series October 2014}}

=== 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 133]].
{| class=wikitable
![[Solar eclipse of October 23, 1976|October 23, 1976]]
![[Solar eclipse of November 3, 1994|November 3, 1994]]
|-
|[[File:SE1976Oct23T.png|240px]]
|[[File:SE1994Nov03T.png|240px]]
|}

== See also ==
*[[List of lunar eclipses]]
*[[List of 20th-century lunar eclipses]]

== Notes ==
{{reflist}}

==External links ==
* {{LEplot1951 link|1985|Oct|28|T}}

{{Lunar eclipses}}

{{DEFAULTSORT:Lunar eclipse 1985-10}}
[[Category:20th-century lunar eclipses|1985-10]]
[[Category:1985 in science]]
[[Category:October 1985]]

October 1985 lunar eclipse - Revision history

imported>Weatherman4064: /* Related eclipses */