A total lunar eclipse will occur at the Moon’s descending node of orbit on Sunday, October 30, 2050,[1] with an umbral magnitude of 1.0549. 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 1.9 days after perigee (on October 28, 2050, at 5:10 UTC), the Moon's apparent diameter will be larger.[2]

This lunar eclipse is the second of a tetrad, with four total lunar eclipses in series, the others being on May 6, 2050; April 26, 2051; and October 19, 2051.

Visibility

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

Eclipse details

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

October 30, 2050 Lunar Eclipse Parameters
Parameter Value
Penumbral Magnitude 2.03564
Umbral Magnitude 1.05490
Gamma 0.44351
Sun Right Ascension 14h18m15.4s
Sun Declination -13°48'46.9"
Sun Semi-Diameter 16'06.2"
Sun Equatorial Horizontal Parallax 08.9"
Moon Right Ascension 02h17m49.7s
Moon Declination +14°14'46.2"
Moon Semi-Diameter 16'25.2"
Moon Equatorial Horizontal Parallax 1°00'15.6"
ΔT 85.6 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 October–November 2050
October 30
Descending node (full moon)
 November 14
Ascending node (new moon)
Total lunar eclipse
Lunar Saros 127		 Partial solar eclipse
Solar Saros 153

Eclipses in 2050

Metonic

Tzolkinex

Half-Saros

Tritos

Lunar Saros 127

Inex

Triad

Lunar eclipses of 2049–2052

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 15, 2049 occurs in the previous lunar year eclipse set.

Lunar eclipse series sets from 2049 to 2052
Ascending node   Descending node
Saros Date
Viewing 		Type
Chart 		Gamma Saros Date
Viewing 		Type
Chart 		Gamma
112 2049 May 17
 Penumbral
 −1.1337 117 2049 Nov 09
 Penumbral
 1.1964
122 2050 May 06
 Total
 −0.4181 127 2050 Oct 30
 Total
 0.4435
132 2051 Apr 26
 Total
 0.3371 137 2051 Oct 19
 Total
 −0.2542
142 2052 Apr 14
 Penumbral
 1.0628 147 2052 Oct 08
 Partial
 −0.9726

Saros 127

This eclipse is a part of Saros series 127, repeating every 18 years, 11 days, and containing 72 events. The series started with a penumbral lunar eclipse on July 9, 1275. It contains partial eclipses from November 4, 1473 through May 18, 1780; total eclipses from May 29, 1798 through November 9, 2068; and a second set of partial eclipses from November 20, 2086 through June 17, 2429. The series ends at member 72 as a penumbral eclipse on September 2, 2555.

The longest duration of totality was produced by member 35 at 101 minutes, 46 seconds on July 23, 1888. All eclipses in this series occur at the Moon’s descending node of orbit.[6]

Greatest First
The greatest eclipse of the series occurred on 1888 Jul 23, lasting 101 minutes, 46 seconds.[7] Penumbral Partial Total Central
1275 Jul 09
 1473 Nov 04
 1798 May 29
 1834 Jun 21
Last
Central Total Partial Penumbral
1960 Sep 05
 2068 Nov 09
 2429 Jun 17
 2555 Sep 02

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 1801 and 2200
1810 Sep 13
(Saros 105) 		1821 Aug 13
(Saros 106) 		1832 Jul 12
(Saros 107) 		1843 Jun 12
(Saros 108) 		1854 May 12
(Saros 109)
1865 Apr 11
(Saros 110) 		1876 Mar 10
(Saros 111) 		1887 Feb 08
(Saros 112) 		1898 Jan 08
(Saros 113) 		1908 Dec 07
(Saros 114)
1919 Nov 07
(Saros 115) 		1930 Oct 07
(Saros 116) 		1941 Sep 05
(Saros 117) 		1952 Aug 05
(Saros 118) 		1963 Jul 06
(Saros 119)
1974 Jun 04
(Saros 120) 		1985 May 04
(Saros 121) 		1996 Apr 04
(Saros 122) 		2007 Mar 03
(Saros 123) 		2018 Jan 31
(Saros 124)
2028 Dec 31
(Saros 125) 		2039 Nov 30
(Saros 126) 		2050 Oct 30
(Saros 127) 		2061 Sep 29
(Saros 128) 		2072 Aug 28
(Saros 129)
2083 Jul 29
(Saros 130) 		2094 Jun 28
(Saros 131) 		2105 May 28
(Saros 132) 		2116 Apr 27
(Saros 133) 		2127 Mar 28
(Saros 134)
2138 Feb 24
(Saros 135) 		2149 Jan 23
(Saros 136) 		2159 Dec 24
(Saros 137) 		2170 Nov 23
(Saros 138) 		2181 Oct 22
(Saros 139)
2192 Sep 21
(Saros 140)

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 annular solar eclipses of Solar Saros 134.

October 25, 2041 November 5, 2059

See also

Notes

  1. ^ "October 29–30, 2050 Total Lunar Eclipse (Blood Moon)". timeanddate. Retrieved 12 December 2024.
  2. ^ "Moon Distances for London, United Kingdom, England". timeanddate. Retrieved 12 December 2024.
  3. ^ "Total Lunar Eclipse of 2050 Oct 30" (PDF). NASA. Retrieved 12 December 2024.
  4. ^ "Total Lunar Eclipse of 2050 Oct 30". EclipseWise.com. Retrieved 12 December 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 127". eclipse.gsfc.nasa.gov.
  7. ^ Listing of Eclipses of series 127
  8. ^ Mathematical Astronomy Morsels, Jean Meeus, p.110, Chapter 18, The half-saros
Allikas: https://en.wikipedia.org/wiki/October_2050_lunar_eclipse
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