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November 2002 lunar eclipse

November 2002 lunar eclipse
Penumbral eclipse
Hourly motion shown right to left
DateNovember 20, 2002
Gamma−1.1126
Magnitude−0.2246
Saros cycle116 (57 of 73)
Penumbral264 minutes, 18 seconds
Contacts (UTC)
P123:34:28
Greatest1:46:36
P43:58:46

A penumbral lunar eclipse occurred at the Moon’s ascending node of orbit on Wednesday, November 20, 2002,[1] with an umbral magnitude of −0.2246. A lunar eclipse occurs when the Moon moves into the Earth's shadow, causing the Moon to be darkened. A penumbral lunar eclipse occurs when part or all of the Moon's near side passes into 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 3.8 days after apogee (on November 16, 2002, at 6:30 UTC), the Moon's apparent diameter was smaller.[2]

Visibility

The eclipse was completely visible much of North and South America, Africa, and Europe, seen rising over western North America and the eastern Pacific Ocean and setting over east Africa and west, central, and south Asia.[3]


The moon's hourly motion across the Earth's shadow in the constellation of Taurus.

Eclipse details

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

November 20, 2002 Lunar Eclipse Parameters
Parameter Value
Penumbral Magnitude 0.86176
Umbral Magnitude −0.22459
Gamma −1.11266
Sun Right Ascension 15h41m07.8s
Sun Declination -19°36'53.3"
Sun Semi-Diameter 16'11.2"
Sun Equatorial Horizontal Parallax 08.9"
Moon Right Ascension 03h42m30.3s
Moon Declination +18°39'15.4"
Moon Semi-Diameter 14'54.0"
Moon Equatorial Horizontal Parallax 0°54'40.9"
ΔT 64.4 s

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.

Eclipse season of November–December 2002
November 20
Ascending node (full moon)
 December 4
Descending node (new moon)
Penumbral lunar eclipse
Lunar Saros 116		 Total solar eclipse
Solar Saros 142

Eclipses in 2002

Metonic

Tzolkinex

Half-Saros

Tritos

Lunar Saros 116

Inex

Triad

Lunar eclipses of 2002–2005

This eclipse is a member of a semester series. An eclipse in a semester series of lunar eclipses repeats approximately every 177 days and 4 hours (a semester) at alternating nodes of the Moon's orbit.[5]

The penumbral lunar eclipse on June 24, 2002 occurs in the previous lunar year eclipse set.

Lunar eclipse series sets from 2002 to 2005
Descending node   Ascending node
Saros Date
Viewing 		Type
Chart 		Gamma Saros Date
Viewing 		Type
Chart 		Gamma
111 2002 May 26
 Penumbral
 1.1759 116 2002 Nov 20
 Penumbral
 −1.1127
121
 2003 May 16
 Total
 0.4123 126
 2003 Nov 09
 Total
 −0.4319
131
 2004 May 04
 Total
 −0.3132 136
 2004 Oct 28
 Total
 0.2846
141 2005 Apr 24
 Penumbral
 −1.0885 146
 2005 Oct 17
 Partial
 0.9796

Metonic series

Saros 116

This eclipse is a part of Saros series 116, repeating every 18 years, 11 days, and containing 73 events. The series started with a penumbral lunar eclipse on March 11, 993 AD. It contains partial eclipses from June 16, 1155 through September 11, 1299; total eclipses from September 21, 1317 through July 11, 1786; and a second set of partial eclipses from July 22, 1804 through October 7, 1930. The series ends at member 73 as a penumbral eclipse on May 14, 2291.

The longest duration of totality was produced by member 40 at 102 minutes, 40 seconds on May 16, 1696. All eclipses in this series occur at the Moon’s ascending node of orbit.[6]

Greatest First
The greatest eclipse of the series occurred on 1696 May 16, lasting 102 minutes, 40 seconds.[7] Penumbral Partial Total Central
993 Mar 11
 1155 Jun 16
 1317 Sep 21
 1588 Mar 13
Last
Central Total Partial Penumbral
1750 Jun 19
 1786 Jul 11
 1930 Oct 07
 2291 May 14

Eclipses are tabulated in three columns; every third eclipse in the same column is one exeligmos apart, so they all cast shadows over approximately the same parts of the Earth.

Tritos series

This eclipse is a part of a tritos cycle, repeating at alternating nodes every 135 synodic months (≈ 3986.63 days, or 11 years minus 1 month). Their appearance and longitude are irregular due to a lack of synchronization with the anomalistic month (period of perigee), but groupings of 3 tritos cycles (≈ 33 years minus 3 months) come close (≈ 434.044 anomalistic months), so eclipses are similar in these groupings.

Series members between 1817 and 2200
1817 May 01
(Saros 99) 		1828 Mar 31
(Saros 100) 		1839 Feb 28
(Saros 101) 		1850 Jan 28
(Saros 102) 		1860 Dec 28
(Saros 103)
1893 Sep 25
(Saros 106) 		1915 Jul 26
(Saros 108)
1926 Jun 25
(Saros 109) 		1937 May 25
(Saros 110) 		1948 Apr 23
(Saros 111) 		1959 Mar 24
(Saros 112) 		1970 Feb 21
(Saros 113)
1981 Jan 20
(Saros 114) 		1991 Dec 21
(Saros 115) 		2002 Nov 20
(Saros 116) 		2013 Oct 18
(Saros 117) 		2024 Sep 18
(Saros 118)
2035 Aug 19
(Saros 119) 		2046 Jul 18
(Saros 120) 		2057 Jun 17
(Saros 121) 		2068 May 17
(Saros 122) 		2079 Apr 16
(Saros 123)
2090 Mar 15
(Saros 124) 		2101 Feb 14
(Saros 125) 		2112 Jan 14
(Saros 126) 		2122 Dec 13
(Saros 127) 		2133 Nov 12
(Saros 128)
2144 Oct 11
(Saros 129) 		2155 Sep 11
(Saros 130) 		2166 Aug 11
(Saros 131) 		2177 Jul 11
(Saros 132) 		2188 Jun 09
(Saros 133)
2199 May 10
(Saros 134)

Half-Saros cycle

A lunar eclipse will be preceded and followed by solar eclipses by 9 years and 5.5 days (a half saros).[8] This lunar eclipse is related to two partial solar eclipses of Solar Saros 123.

November 13, 1993 November 25, 2011

See also

References

  1. ^ "November 19–20, 2002 Penumbral Lunar Eclipse". timeanddate. Retrieved 12 November 2024.
  2. ^ "Moon Distances for London, United Kingdom, England". timeanddate. Retrieved 12 November 2024.
  3. ^ "Penumbral Lunar Eclipse of 2002 Nov 20" (PDF). NASA. Retrieved 12 November 2024.
  4. ^ "Penumbral Lunar Eclipse of 2002 Nov 20". EclipseWise.com. Retrieved 12 November 2024.
  5. ^ van Gent, R.H. "Solar- and Lunar-Eclipse Predictions from Antiquity to the Present". A Catalogue of Eclipse Cycles. Utrecht University. Retrieved 6 October 2018.
  6. ^ "NASA - Catalog of Lunar Eclipses of Saros 116". eclipse.gsfc.nasa.gov.
  7. ^ Listing of Eclipses of series 116
  8. ^ Mathematical Astronomy Morsels, Jean Meeus, p.110, Chapter 18, The half-saros


Quelle: https://en.wikipedia.org/wiki/November_2002_lunar_eclipse