October 2051 lunar eclipse

October 2051 lunar eclipse
Total eclipse
The Moon's hourly motion shown right to left
DateOctober 19, 2051
Gamma−0.2542
Magnitude1.4130
Saros cycle137 (28 of 78)
Totality83 minutes, 34 seconds
Partiality204 minutes, 17 seconds
Penumbral314 minutes, 11 seconds
Contacts (UTC)
P116:33:07
U117:28:05
U218:28:26
Greatest19:10:13
U319:52:00
U420:52:21
P421:47:18

A total lunar eclipse will occur at the Moon’s descending node of orbit on Thursday, October 19, 2051,[1] with an umbral magnitude of 1.4130. It will be a central lunar eclipse, in which part of the Moon will pass through the center of the Earth's shadow. 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 30 minutes after perigee (on October 19, 2051, at 18:40 UTC), the Moon's apparent diameter will be larger.[2]

This lunar eclipse is the last of a tetrad, with four total lunar eclipses in series, the others being on May 6, 2050; October 30, 2050; and April 26, 2051.

This will be the first central eclipse of Saros series 137. Less than a day from perigee, the Moon's apparent diameter will be larger, and be considered a supermoon.

Visibility

The eclipse will be completely visible over east Africa and much of Europe and Asia, seen rising over eastern South America and west Africa and setting over Australia and the western Pacific Ocean.[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 19, 2051 Lunar Eclipse Parameters
Parameter Value
Penumbral Magnitude 2.37193
Umbral Magnitude 1.41297
Gamma −0.25423
Sun Right Ascension 13h37m47.1s
Sun Declination -10°10'03.3"
Sun Semi-Diameter 16'03.4"
Sun Equatorial Horizontal Parallax 08.8"
Moon Right Ascension 01h38m04.1s
Moon Declination +09°55'00.4"
Moon Semi-Diameter 16'44.6"
Moon Equatorial Horizontal Parallax 1°01'27.1"
ΔT 86.3 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 2051
October 4
Ascending node (new moon)
 October 19
Descending node (full moon)
Partial solar eclipse
Solar Saros 125		 Total lunar eclipse
Lunar Saros 137

Eclipses in 2051

Metonic

Tzolkinex

Half-Saros

Tritos

Lunar Saros 137

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 137

It is part of Saros series 137.

Half-Saros cycle

A lunar eclipse will be preceded and followed by solar eclipses by 9 years and 5.5 days (a half saros).[6] This lunar eclipse is related to two total solar eclipses of Solar Saros 144.

October 14, 2042 October 24, 2060

See also

Notes

  1. ^ "October 19–20, 2051 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 2051 Oct 19" (PDF). NASA. Retrieved 12 December 2024.
  4. ^ "Total Lunar Eclipse of 2051 Oct 19". 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. ^ Mathematical Astronomy Morsels, Jean Meeus, p.110, Chapter 18, The half-saros