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May 2170 lunar eclipse

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May 2170 lunar eclipse
Total eclipse
DateMay 30, 2170
Gamma0.0174
Magnitude1.8330
Saros cycle133 (35 of 71)
Totality101 minutes, 41 seconds
Partiality219 minutes, 22 seconds
Penumbral335 minutes, 22 seconds
Contacts (UTC)
P122:04:00
U123:01:56
U20:00:47
Greatest0:51:38
U31:42:28
U42:41:18
P43:39:22
← December 2169
November 2170 →

A total lunar eclipse will occur at the Moon’s descending node of orbit on Wednesday, May 30, 2170,[1] with an umbral magnitude of 1.7488. 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 3.6 days after perigee (on May 26, 2170, at 10:15 UTC), the Moon's apparent diameter will be larger.[2]

This will be the greatest lunar eclipse of Lunar Saros 133 as well as the largest and darkest lunar eclipse of the 22nd century.[3]

Visibility

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The eclipse will be completely visible over central and eastern South America, western Europe, and much of Africa, seen rising over western South America and much of North America and setting over eastern Europe, the western half of Asia, and western Australia.

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]

May 30, 2170 Lunar Eclipse Parameters
Parameter Value
Penumbral Magnitude 2.81880
Umbral Magnitude 1.83301
Gamma 0.01743
Sun Right Ascension 04h28m29.8s
Sun Declination +21°45'15.5"
Sun Semi-Diameter 15'47.2"
Sun Equatorial Horizontal Parallax 08.7"
Moon Right Ascension 16h28m30.9s
Moon Declination -21°44'16.0"
Moon Semi-Diameter 16'00.8"
Moon Equatorial Horizontal Parallax 0°58'46.3"
ΔT 219.6 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. The first and last eclipse in this sequence is separated by one synodic month.

Eclipse season of May–June 2170
May 16
Ascending node (new moon)
May 30
Descending node (full moon)
June 14
Ascending node (new moon)
Partial solar eclipse
Solar Saros 121
Total lunar eclipse
Lunar Saros 133
Partial solar eclipse
Solar Saros 159
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Eclipses in 2170

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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 133

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Inex

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Triad

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Lunar eclipses of 2168–2172

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Saros 133

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Lunar saros series 133, repeating every 18 years and 11 days, has a total of 71 lunar eclipse events including 54 umbral lunar eclipses (33 partial lunar eclipses and 21 total lunar eclipses).

Greatest First

The greatest eclipse of the series will occur on 2170 May 30, lasting 102 minutes.

[3]

Penumbral Partial Total Central
1557 May 13
1683 Aug 07
1917 Dec 28
2098 Apr 15
Last
Central Total Partial Penumbral
2224 Jul 01
2278 Aug 03
2429 Dec 11
2754 Jun 26

There are 10 series events between 1901 and 2100, grouped into threes (called an exeligmos), each column with approximately the same viewing longitude on Earth.

1901–2100
1917 Dec 28 1936 Jan 08 1954 Jan 19
1972 Jan 30 1990 Feb 09 2008 Feb 21
2026 Mar 03 2044 Mar 13 2062 Mar 25
2080 Apr 04 2098 Apr 15

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 140.

May 25, 2161 June 5, 2179

References

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  1. ^ "May 29–30, 2170 Total Lunar Eclipse (Blood Moon)". timeanddate. Retrieved 15 December 2024.
  2. ^ "Moon Distances for London, United Kingdom, England". timeanddate. Retrieved 15 December 2024.
  3. ^ a b "NASA - Catalog of Lunar Eclipses in Saros 133". eclipse.gsfc.nasa.gov. Retrieved 2021-01-24.
  4. ^ "Total Lunar Eclipse of 2170 May 30". EclipseWise.com. Retrieved 15 December 2024.
  5. ^ Mathematical Astronomy Morsels, Jean Meeus, p.110, Chapter 18, The half-saros