April 1986 lunar eclipse

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Template:Short description Template:Infobox lunar eclipse A total lunar eclipse occurred at the Moon’s descending node of orbit on Thursday, April 24, 1986,[1] with an umbral magnitude of 1.2022. 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 1.25 days before perigee (on April 25, 1986, at 18:40 UTC), the Moon's apparent diameter was larger.[2]

This lunar eclipse was the third of a tetrad, with four total lunar eclipses in series, the others being on May 4, 1985; October 28, 1985; and October 17, 1986.

Visibility

The eclipse was completely visible over Australia, east and northeast Asia, Antarctica, and the western and central Pacific Ocean, seen rising over much of Asia and setting over North America and western South America.[3]

File:Lunar eclipse from moon-1986Apr24.png File:Lunar eclipse chart close-1986Apr24.png

Eclipse details

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

April 24, 1986 Lunar Eclipse Parameters
Parameter Value
Penumbral Magnitude 2.16203
Umbral Magnitude 1.20217
Gamma −0.36826
Sun Right Ascension 02h07m09.8s
Sun Declination +12°52'05.8"
Sun Semi-Diameter 15'54.1"
Sun Equatorial Horizontal Parallax 08.7"
Moon Right Ascension 14h06m30.3s
Moon Declination -13°12'18.9"
Moon Semi-Diameter 16'34.0"
Moon Equatorial Horizontal Parallax 1°00'48.0"
ΔT 55.0 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.

Eclipse season of April 1986
April 9
Ascending node (new moon)
 April 24
Descending node (full moon)
File:SE1986Apr09P.png File:Lunar eclipse chart close-1986Apr24.png
Partial solar eclipse
Solar Saros 119		 Total lunar eclipse
Lunar Saros 131

Related eclipses

Eclipses in 1986

Metonic

Tzolkinex

Half-Saros

Tritos

Lunar Saros 131

Inex

Triad

Lunar eclipses of 1984–1987

Template:Lunar eclipse set 1984-1987

Metonic series

Template:Metonic lunar eclipse 1948-2005

Saros 131

Template:Lunar Saros series 131

Tritos series

Template:Lunar Tritos series February 2008

Inex series

Template:Lunar Inex series April 2015

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 annular solar eclipses of Solar Saros 138.

April 18, 1977 April 29, 1995
File:SE1977Apr18A.png File:SE1995Apr29A.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

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External links

Template:Lunar eclipses

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