October 2004 lunar eclipse

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Template:Short description Template:Infobox lunar eclipse A total lunar eclipse occurred at the Moon’s ascending node of orbit on Thursday, October 28, 2004,[1] with an umbral 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 shadow is smaller. Occurring about 5.4 days before apogee (on November 2, 2004, at 13:10 UTC), the Moon's apparent diameter was smaller.[2]

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

Visibility

The eclipse was completely visible over much of 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.[3]

File:Lunar eclipse from moon-2004Oct28.png File:Lunar eclipse chart close-04oct28.png
Hourly motion shown right to left
File:Lunar eclipse chart-04oct28.png
The Moon's hourly motion across the Earth's shadow in the constellation of Aries.

Gallery

Eclipse details

Shown below is a table displaying details about this particular solar eclipse. It describes various parameters pertaining to this eclipse.[4]

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

Eclipse season

Script error: No such module "Labelled list hatnote". 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.

Eclipse season of October 2004
October 14
Descending node (new moon)
 October 28
Ascending node (full moon)
File:SE2004Oct14P.png File:Lunar eclipse chart close-04oct28.png
Partial solar eclipse
Solar Saros 124		 Total lunar eclipse
Lunar Saros 136

Related eclipses

Eclipses in 2004

Metonic

Tzolkinex

Half-Saros

Tritos

Lunar Saros 136

Inex

Triad

Lunar eclipses of 2002–2005

Template:Lunar eclipse set 2002-2005

Metonic series

Template:Metonic lunar eclipse 1966-2023

Saros 136

Template:Lunar Saros series 136

Tritos series

Template:Lunar Tritos series October 2004

Inex series

Template: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 half saros).[5] This lunar eclipse is related to two solar eclipses of Solar Saros 143.

October 24, 1995 November 3, 2013
File:SE1995Oct24T.png File:SE2013Nov03H.png

See also

Notes

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  1. ↑ Script error: No such module "citation/CS1".
  2. ↑ Script error: No such module "citation/CS1".
  3. ↑ Script error: No such module "citation/CS1".
  4. ↑ Script error: No such module "citation/CS1".
  5. ↑ Mathematical Astronomy Morsels, Jean Meeus, p.110, Chapter 18, The half-saros

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External links

Template:Lunar eclipses

Template:Sister project

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