View source for October 2004 lunar eclipse

{{Short description|Total lunar eclipse 28 October 2004}}
{{Infobox lunar eclipse
| type       = total
| image      = Oct 28 2004 total lunar eclipse-espenak.png
| caption    = Totality as viewed from [[Dunkirk, Maryland]] at 3:03 UTC, taken by [[Fred Espenak]]
| date       = October 28, 2004
| gamma      = 0.2846
| magnitude  = 1.3100
| saros_ser  = 136
| saros_no   = 19 of 72
| totality   = 85 minutes, 29 seconds
| partiality = 218 minutes, 41 seconds
| penumbral  = 353 minutes, 46 seconds
| p1         = 0:07:17
| u1         = 1:14:45
| u2         = 2:23:51
| greatest   = 3:04:07
| u3         = 3:44:20
| u4         = 4:53:26
| p4         = 6:01:03
| previous   = May 2004
| next       = April 2005
}}
A total [[lunar eclipse]] occurred at the Moon’s [[Lunar node|ascending node]] of orbit on Thursday, October 28, 2004,<ref>{{cite web|title=October 27–28, 2004 Total Lunar Eclipse (Blood Moon)|url=https://www.timeanddate.com/eclipse/lunar/2004-october-28|publisher=timeanddate|access-date=13 November 2024}}</ref> with an umbral [[Magnitude of eclipse|magnitude]] of 1.3100. 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 5.4 days before [[Apsis|apogee]] (on November 2, 2004, at 13:10 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=2004&n=136|publisher=timeanddate|access-date=13 November 2024}}</ref>

This lunar eclipse is the last of a [[Tetrad (astronomy)|tetrad]], with four total lunar eclipses in series, the others being on [[May 2003 lunar eclipse|May 16, 2003]]; [[November 2003 lunar eclipse|November 9, 2004]]; and [[May 2004 lunar eclipse|May 4, 2004]].

== Visibility ==
The eclipse was completely visible over much of [[North America|North]] and [[South America]], [[west Africa]], and [[western Europe]], seen rising over western North America and the [[Pacific Ocean]] and setting over [[Africa]], [[eastern Europe]], and [[west Asia]].<ref>{{cite web|title=Total Lunar Eclipse of 2004 Oct 28|url=https://eclipse.gsfc.nasa.gov/LEplot/LEplot2001/LE2004Oct28T.pdf|publisher=NASA|access-date=13 November 2024}}</ref>

{| class=wikitable width=480
|[[File:Lunar eclipse from moon-2004Oct28.png|240px]]
|[[File:Lunar eclipse chart close-04oct28.png|240px]]<BR>Hourly motion shown right to left
|- align=center
|colspan=2| [[File:Lunar eclipse chart-04oct28.png|250px]]<BR>The Moon's hourly motion across the Earth's shadow in the constellation of [[Aries (constellation)|Aries]].
|}

== Gallery ==
<gallery widths="140px" heights="100px" style="margin:2px auto;" perrow="4">
Image:Lunar-eclipse-2004.jpg|Timelapse photo from [[Hayward, California]]
Image:US Navy 041027-N-9500T-001 The moon turns red and orange during a total lunar eclipse.jpg|[[Ault Field, Washington]], 2:29 UT
Image:FrauBucher - redmoonTrio espenak full (by).jpg|[[Dunkirk, Maryland]], 3:03 UT
Image:Lunar_eclipse_28102004.jpg|From [[Kiuruvesi]], Finland, 3:21 UT
Image:Marshmallow - DSC 0176 (by).jpg|[[Seattle, Washington]]<BR>End of totality, 3:43 UT
Image:Ckindel - Lunar Eclipse Oct 27, 2004 (by-sa).jpg|[[Bellevue, Washington]], 3:51 UT
Image:J.C. Rojas - Lunar Eclipse (by-sa).jpg|Timelapse photo from [[A Coruña, Spain]]
</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=Total Lunar Eclipse of 2004 Oct 28|url=https://eclipsewise.com/lunar/LEprime/2001-2100/LE2004Oct28Tprime.html|publisher=EclipseWise.com|access-date=13 November 2024}}</ref>

{|class="wikitable" align="{{{align|left}}}" style="margin:{{#ifeq:{{{align}}}|right|0 0 0.5em 1em|0 1em 0.5em 0}}"
|+October 28, 2004 Lunar Eclipse Parameters
! Parameter
! Value
|-
| Penumbral Magnitude
| 2.36560
|-
| Umbral Magnitude
| 1.31001
|-
| Gamma
| 0.28465
|-
| Sun Right Ascension
| 14h11m00.6s
|-
| Sun Declination
| -13°12'05.3"
|-
| Sun Semi-Diameter
| 16'06.0"
|-
| Sun Equatorial Horizontal Parallax
| 08.9"
|-
| Moon Right Ascension
| 02h10m32.6s
|-
| Moon Declination
| +13°26'29.6"
|-
| Moon Semi-Diameter
| 15'15.1"
|-
| Moon Equatorial Horizontal Parallax
| 0°55'58.4"
|-
| ΔT
| 64.6 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 2004
! [[Solar eclipse of October 14, 2004|October 14]]<br/>Descending node (new moon)<br/> !! October 28<br/>Ascending node (full moon)<br/>
|-
| [[File:SE2004Oct14P.png|200px]] || [[File:Lunar eclipse chart close-04oct28.png|200px]]
|- align=center
| [[Total eclipse#Types|Partial solar eclipse]]<br />Solar Saros 124 || [[Lunar eclipse#Types of lunar eclipse|Total lunar eclipse]]<br />Lunar Saros 136
|}

== Related eclipses ==
=== Eclipses in 2004 ===
* [[Solar eclipse of April 19, 2004|A partial solar eclipse on April 19]].
* [[May 2004 lunar eclipse|A total lunar eclipse on May 4]].
* [[Solar eclipse of October 14, 2004|A partial solar eclipse on October 14]].
* '''A total lunar eclipse on October 28.'''

=== Metonic ===
* Preceded by: [[January 2001 lunar eclipse|Lunar eclipse of January 9, 2001]]
* Followed by: [[August 2008 lunar eclipse|Lunar eclipse of August 16, 2008]]

=== Tzolkinex ===
* Preceded by: [[September 1997 lunar eclipse|Lunar eclipse of September 16, 1997]]
* Followed by: [[December 2011 lunar eclipse|Lunar eclipse of December 10, 2011]]

=== Half-Saros ===
* Preceded by: [[Solar eclipse of October 24, 1995]]
* Followed by: [[Solar eclipse of November 3, 2013]]

=== Tritos ===
* Preceded by: [[November 1993 lunar eclipse|Lunar eclipse of November 29, 1993]]
* Followed by: [[September 2015 lunar eclipse|Lunar eclipse of September 28, 2015]]

=== Lunar Saros 136 ===
* Preceded by: [[October 1986 lunar eclipse|Lunar eclipse of October 17, 1986]]
* Followed by: [[November 2022 lunar eclipse|Lunar eclipse of November 8, 2022]]

=== Inex ===
* Preceded by: [[November 1975 lunar eclipse|Lunar eclipse of November 18, 1975]]
* Followed by: [[October 2033 lunar eclipse|Lunar eclipse of October 8, 2033]]

=== Triad ===
* Preceded by: [[December 1917 lunar eclipse|Lunar eclipse of December 28, 1917]]
* Followed by: [[August 2091 lunar eclipse|Lunar eclipse of August 29, 2091]]

=== Lunar eclipses of 2002–2005 ===
{{Lunar eclipse set 2002-2005}}

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

=== Saros 136 ===
{{Lunar Saros series 136}}

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

=== Inex series ===
{{Lunar Inex series October 2004}}

=== 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 solar eclipses of [[Solar Saros 143]].
{| class=wikitable
![[Solar eclipse of October 24, 1995|October 24, 1995]]
![[Solar eclipse of November 3, 2013|November 3, 2013]]
|-
|[[File:SE1995Oct24T.png|240px]]
|[[File:SE2013Nov03H.png|240px]]
|}

== See also ==
*[[List of lunar eclipses]] and [[List of 21st-century lunar eclipses]]
*[[May 2003 lunar eclipse]]
*[[November 2003 lunar eclipse]]
*[[May 2004 lunar eclipse]]

== Notes ==
{{reflist}}

== External links==
* NASA
**[http://eclipse.gsfc.nasa.gov/LEmono/TLE2004Oct28/TLE2004Oct28.html Total Lunar Eclipse of Oct. 27, 2004]
** {{LEplot2001 link|2004|Oct|28|T}}
**[http://eclipse.gsfc.nasa.gov/LEsaros/LEsaros136.html Saros series 136]
* {{APOD |date=29 October 2004 |title=Red Moon Triple}}
* {{APOD |date=30 October 2004 |title=Pumpkin Moon}}
* [https://web.archive.org/web/20090814112336/http://science.nasa.gov/spaceweather/eclipses/gallery_27oct04.html Lunar Eclipse gallery]
* [http://www.skychasers.net/ Photo by Wade B Clark Jr. near Lyman, Washington, USA] 
* [http://www.skychasers.net/Lunar_Eclipse_October_27_2004_17_Low_Res.jpg]
* [https://web.archive.org/web/20090814112336/http://science.nasa.gov/spaceweather/eclipses/gallery_27oct04.html Spaceweather.com: Lunar eclipse gallery]

{{Lunar eclipses}}

{{Commons category|Lunar eclipse of 2004 October 28}}

{{DEFAULTSORT:Lunar eclipse 2004-10}}
[[Category:21st-century lunar eclipses|2004-10]]
[[Category:2004 in science]]
[[Category:October 2004]]