May 1984 lunar eclipse

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Template:Short description Template:Infobox lunar eclipse A penumbral lunar eclipse occurred at the Moon’s descending node of orbit on Tuesday, May 15, 1984,[1] with an umbral magnitude of −0.1759. 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 days after perigee (on May 12, 1984, at 4:05 UTC), the Moon's apparent diameter was larger.[2]

Visibility

The eclipse was completely visible over much of North America, South America, and Antarctica, seen rising over northwestern North America and the central Pacific Ocean and setting over Africa and much of Europe.[3]

File:Lunar eclipse from moon-1984May15.png File:Lunar eclipse chart close-1984May15.png

Eclipse details

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

May 15, 1984 Lunar Eclipse Parameters
Parameter Value
Penumbral Magnitude 0.80710
Umbral Magnitude −0.17593
Gamma 1.11308
Sun Right Ascension 03h28m40.8s
Sun Declination +18°54'19.8"
Sun Semi-Diameter 15'49.2"
Sun Equatorial Horizontal Parallax 08.7"
Moon Right Ascension 15h30m13.7s
Moon Declination -17°52'23.9"
Moon Semi-Diameter 16'05.6"
Moon Equatorial Horizontal Parallax 0°59'03.7"
ΔT 54.0 s

Eclipse season

Script error: No such module "Labelled list hatnote". 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 1984
May 15
Descending node (full moon)
 May 30
Ascending node (new moon)
 June 13
Descending node (full moon)
File:Lunar eclipse chart close-1984May15.png File:SE1984May30A.png File:Lunar eclipse chart close-1984Jun13.png
Penumbral lunar eclipse
Lunar Saros 111		 Annular solar eclipse
Solar Saros 137		 Penumbral lunar eclipse
Lunar Saros 149

Related eclipses

Eclipses in 1984

Metonic

Tzolkinex

Half-Saros

Tritos

Lunar Saros 111

Inex

Triad

Lunar eclipses of 1984–1987

Template:Lunar eclipse set 1984-1987

Metonic series

The Metonic cycle repeats nearly exactly every 19 years and represents a Saros cycle plus one lunar year. Because it occurs on the same calendar date, the Earth's shadow will be in nearly the same location relative to the background stars.

  1. 1984 May 15.19 - penumbral (111)
  2. 2003 May 16.15 - total (121)
  3. 2022 May 16.17 - total (131)
  4. 2041 May 16.03 - penumbral (141)
  1. 1984 Nov 08.75 - penumbral (116)
  2. 2003 Nov 09.05 - total (126)
  3. 2022 Nov 08.46 - total (136)
  4. 2041 Nov 08.19 - partial (146)
  5. 2060 Nov 08.17 - penumbral (156)
File:Metonic lunar eclipses 1984-2041D.png File:Metonic lunar eclipses 1984-2041.png

Saros 111

Template:Lunar Saros series 111

Tritos series

Template:Lunar Tritos series March 2006

Inex series

Template:Lunar Inex series April 2013

Half-Saros cycle

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 partial solar eclipses of Solar Saros 118.

May 11, 1975 May 21, 1993
File:SE1975May11P.png File:SE1993May21P.png

See also

Notes

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  1. ↑ Script error: No such module "citation/CS1".
  2. ↑ Script error: No such module "citation/CS1".
  3. ↑ Script error: No such module "citation/CS1".
  4. ↑ Script error: No such module "citation/CS1".
  5. ↑ Mathematical Astronomy Morsels, Jean Meeus, p.110, Chapter 18, The half-saros

Script error: No such module "Check for unknown parameters".

External links

Template:Lunar eclipses

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