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January 2001 lunar eclipse

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January 2001 lunar eclipse
Total eclipse
Totality as viewed from Oria, Italy.
DateJanuary 9, 2001
Gamma0.3720
Magnitude1.1902
Saros cycle134 (26 of 73)
Totality61 minutes, 2 seconds
Partiality196 minutes, 19 seconds
Penumbral311 minutes, 2 seconds
Contacts (UTC)
P117:45:04
U118:42:27
U219:50:05
Greatest20:20:35
U320:51:07
U421:58:45
P422:56:06

A total lunar eclipse occurred at the Moon’s ascending node of orbit on Tuesday, January 9, 2001,[1] with an umbral magnitude of 1.1902. 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 only about 8 hours before perigee (on January 10, 2001, at 4:00 UTC), the Moon's apparent diameter was larger.[2]

Visibility

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The eclipse was completely visible over Africa, Europe, and Asia, seen rising over eastern and northern North America and eastern South America and setting over Australia and the western Pacific Ocean.[3]


Hourly motion shown right to left

The Moon passed straight through the center of the Earth's shadow at the descending node in Gemini.

Eclipse details

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

January 9, 2001 Lunar Eclipse Parameters
Parameter Value
Penumbral Magnitude 2.16314
Umbral Magnitude 1.19022
Gamma 0.37198
Sun Right Ascension 19h25m03.5s
Sun Declination -21°59'58.3"
Sun Semi-Diameter 16'15.9"
Sun Equatorial Horizontal Parallax 08.9"
Moon Right Ascension 07h25m08.0s
Moon Declination +22°22'46.0"
Moon Semi-Diameter 16'43.0"
Moon Equatorial Horizontal Parallax 1°01'21.1"
ΔT 64.1 s

Eclipse season

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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 December 2000–January 2001
December 25
Descending node (new moon)
January 9
Ascending node (full moon)
Partial solar eclipse
Solar Saros 122
Total lunar eclipse
Lunar Saros 134
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Eclipses in 2001

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Metonic

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Tzolkinex

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Half-Saros

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Tritos

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Lunar Saros 134

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Inex

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Triad

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Lunar eclipses of 1998–2002

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Lunar eclipse series sets from 1998–2002
Descending node   Ascending node
Saros Date
Viewing
Type
Chart
Gamma Saros Date
Viewing
Type
Chart
Gamma
109 1998 Aug 08
penumbral
1.4876 114 1999 Jan 31
penumbral
−1.0190
119 1999 Jul 28
partial
0.7863 124
2000 Jan 21
total
−0.2957
129 2000 Jul 16
total
0.0302 134
2001 Jan 09
total
0.3720
139 2001 Jul 05
partial
−0.7287 144 2001 Dec 30
penumbral
1.0732
149 2002 Jun 24
penumbral
−1.4440
Last set 1998 Sep 06 Last set 1998 Mar 13
Next set 2002 May 26 Next set 2002 Nov 20

Half-Saros cycle

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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 annular solar eclipses of Solar Saros 141.

January 4, 1992 January 15, 2010

See also

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References

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  1. ^ "January 9–10, 2001 Total Lunar Eclipse (Blood Moon)". timeanddate. Retrieved 12 November 2024.
  2. ^ "Moon Distances for London, United Kingdom, England". timeanddate. Retrieved 12 November 2024.
  3. ^ "Total Lunar Eclipse of 2001 Jan 09" (PDF). NASA. Retrieved 12 November 2024.
  4. ^ "Total Lunar Eclipse of 2001 Jan 09". EclipseWise.com. Retrieved 12 November 2024.
  5. ^ Mathematical Astronomy Morsels, Jean Meeus, p.110, Chapter 18, The half-saros
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