Solar eclipse of April 9, 1986

Last updated
Solar eclipse of April 9, 1986
SE1986Apr09P.png
Map
Type of eclipse
NaturePartial
Gamma −1.0822
Magnitude 0.8236
Maximum eclipse
Coordinates 61°12′S161°24′E / 61.2°S 161.4°E / -61.2; 161.4
Times (UTC)
Greatest eclipse6:21:22
References
Saros 119 (64 of 71)
Catalog # (SE5000) 9478

A partial solar eclipse occurred at the Moon's ascending node of orbit on Wednesday, April 9, 1986, [1] with a magnitude of 0.8236. A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally or partly obscuring the image of the Sun for a viewer on Earth. A partial solar eclipse occurs in the polar regions of the Earth when the center of the Moon's shadow misses the Earth.

Contents

A partial eclipse was visible for parts of Antarctica, Australia, Indonesia, and New Zealand.

Eclipse details

Shown below are two tables displaying details about this particular solar eclipse. The first table outlines times at which the moon's penumbra or umbra attains the specific parameter, and the second table describes various other parameters pertaining to this eclipse. [2]

April 9, 1986 Solar Eclipse Times
EventTime (UTC)
First Penumbral External Contact1986 April 09 at 04:10:36.4 UTC
Equatorial Conjunction1986 April 09 at 05:14:50.1 UTC
Ecliptic Conjunction1986 April 09 at 06:09:02.6 UTC
Greatest Eclipse1986 April 09 at 06:21:22.4 UTC
Last Penumbral External Contact1986 April 09 at 08:32:39.0 UTC
April 9, 1986 Solar Eclipse Parameters
ParameterValue
Eclipse Magnitude0.82362
Eclipse Obscuration0.75723
Gamma−1.08215
Sun Right Ascension01h10m32.0s
Sun Declination+07°29'00.7"
Sun Semi-Diameter15'58.1"
Sun Equatorial Horizontal Parallax08.8"
Moon Right Ascension01h12m23.9s
Moon Declination+06°36'30.3"
Moon Semi-Diameter14'59.5"
Moon Equatorial Horizontal Parallax0°55'01.4"
ΔT55.0 s

Eclipse season

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)
SE1986Apr09P.png Lunar eclipse chart close-1986Apr24.png
Partial solar eclipse
Solar Saros 119		 Total lunar eclipse
Lunar Saros 131

Eclipses in 1986

Metonic

Tzolkinex

Half-Saros

Tritos

Solar Saros 119

Inex

Triad

Solar eclipses of 1986–1989

This eclipse is a member of a semester series. An eclipse in a semester series of solar eclipses repeats approximately every 177 days and 4 hours (a semester) at alternating nodes of the Moon's orbit. [3]

Solar eclipse series sets from 1986 to 1989
Ascending node Descending node
SarosMapGammaSarosMapGamma
119 April 9, 1986
SE1986Apr09P.png
Partial		−1.0822124 October 3, 1986
SE1986Oct03H.png
Hybrid		0.9931
129 March 29, 1987
SE1987Mar29H.png
Hybrid		−0.3053134 September 23, 1987
SE1987Sep23A.png
Annular		0.2787
139 March 18, 1988
SE1988Mar18T.png
Total		0.4188144 September 11, 1988
SE1988Sep11A.png
Annular		−0.4681
149 March 7, 1989
SE1989Mar07P.png
Partial		1.0981154 August 31, 1989
SE1989Aug31P.png
Partial		−1.1928

Saros 119

This eclipse is a part of Saros series 119, repeating every 18 years, 11 days, and containing 71 events. The series started with a partial solar eclipse on May 15, 850 AD. It contains total eclipses on August 9, 994 AD and August 20, 1012; a hybrid eclipse on August 31, 1030; and annular eclipses from September 10, 1048 through March 18, 1950. The series ends at member 71 as a partial eclipse on June 24, 2112. Its 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.

The longest duration of totality was produced by member 10 at 32 seconds on August 20, 1012, and the longest duration of annularity was produced by member 44 at 7 minutes, 37 seconds on September 1, 1625. All eclipses in this series occur at the Moon’s ascending node of orbit. [4]

Metonic series

The metonic series repeats eclipses every 19 years (6939.69 days), lasting about 5 cycles. Eclipses occur in nearly the same calendar date. In addition, the octon subseries repeats 1/5 of that or every 3.8 years (1387.94 days). All eclipses in this table occur at the Moon's ascending node.

21 eclipse events between June 21, 1982 and June 21, 2058
June 21April 8–9January 26November 13–14September 1–2
117119121123125
SE1982Jun21P.png
June 21, 1982 		SE1986Apr09P.png
April 9, 1986 		SE1990Jan26A.png
January 26, 1990 		SE1993Nov13P.png
November 13, 1993 		SE1997Sep02P.png
September 2, 1997
127129131133135
SE2001Jun21T.png
June 21, 2001 		SE2005Apr08H.png
April 8, 2005 		SE2009Jan26A.png
January 26, 2009 		SE2012Nov13T.png
November 13, 2012 		SE2016Sep01A.png
September 1, 2016
137139141143145
SE2020Jun21A.png
June 21, 2020 		SE2024Apr08T.png
April 8, 2024 		SE2028Jan26A.png
January 26, 2028 		SE2031Nov14H.png
November 14, 2031 		SE2035Sep02T.png
September 2, 2035
147149151153155
SE2039Jun21A.png
June 21, 2039 		SE2043Apr09T.png
April 9, 2043 		SE2047Jan26P.png
January 26, 2047 		SE2050Nov14P.png
November 14, 2050 		SE2054Sep02P.png
September 2, 2054
157
SE2058Jun21P.png
June 21, 2058

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 1866 and 2200
SE1866Mar16P.gif
March 16, 1866
(Saros 108)		 SE1898Dec13P.gif
December 13, 1898
(Saros 111)
SE1931Sep12P.png
September 12, 1931
(Saros 114)		 SE1942Aug12P.png
August 12, 1942
(Saros 115)		 SE1953Jul11P.png
July 11, 1953
(Saros 116)		 SE1964Jun10P.png
June 10, 1964
(Saros 117)
SE1975May11P.png
May 11, 1975
(Saros 118)		 SE1986Apr09P.png
April 9, 1986
(Saros 119)		 SE1997Mar09T.png
March 9, 1997
(Saros 120)		 SE2008Feb07A.png
February 7, 2008
(Saros 121)		 SE2019Jan06P.png
January 6, 2019
(Saros 122)
SE2029Dec05P.png
December 5, 2029
(Saros 123)		 SE2040Nov04P.png
November 4, 2040
(Saros 124)		 SE2051Oct04P.png
October 4, 2051
(Saros 125)		 SE2062Sep03P.png
September 3, 2062
(Saros 126)		 SE2073Aug03T.png
August 3, 2073
(Saros 127)
SE2084Jul03A.png
July 3, 2084
(Saros 128)		 SE2095Jun02T.png
June 2, 2095
(Saros 129)		 SE2106May03T.png
May 3, 2106
(Saros 130)		 SE2117Apr02A.png
April 2, 2117
(Saros 131)		 SE2128Mar01A.png
March 1, 2128
(Saros 132)
SE2139Jan30T.png
January 30, 2139
(Saros 133)		 SE2149Dec30A.png
December 30, 2149
(Saros 134)		 SE2160Nov27A.png
November 27, 2160
(Saros 135)		 SE2171Oct29T.png
October 29, 2171
(Saros 136)		 SE2182Sep27A.png
September 27, 2182
(Saros 137)
SE2193Aug26A.png
August 26, 2193
(Saros 138)

Inex series

This eclipse is a part of the long period inex cycle, repeating at alternating nodes, every 358 synodic months (≈ 10,571.95 days, or 29 years minus 20 days). Their appearance and longitude are irregular due to a lack of synchronization with the anomalistic month (period of perigee). However, groupings of 3 inex cycles (≈ 87 years minus 2 months) comes close (≈ 1,151.02 anomalistic months), so eclipses are similar in these groupings.

Series members between 1801 and 2200
SE1812Aug07P.gif
August 7, 1812
(Saros 113)		 SE1841Jul18P.gif
July 18, 1841
(Saros 114)		 SE1870Jun28P.gif
June 28, 1870
(Saros 115)
SE1899Jun08P.gif
June 8, 1899
(Saros 116)		 SE1928May19T.png
May 19, 1928
(Saros 117)		 SE1957Apr30A.png
April 30, 1957
(Saros 118)
SE1986Apr09P.png
April 9, 1986
(Saros 119)		 SE2015Mar20T.png
March 20, 2015
(Saros 120)		 SE2044Feb28A.png
February 28, 2044
(Saros 121)
SE2073Feb07P.png
February 7, 2073
(Saros 122)		 Saros123 58van70 SE2102Jan19P.jpg
January 19, 2102
(Saros 123)		 Saros124 61van73 SE2130Dec30P.jpg
December 30, 2130
(Saros 124)
Saros125 62van73 SE2159Dec09P.jpg
December 9, 2159
(Saros 125)		 Saros126 57van72 SE2188Nov18P.jpg
November 18, 2188
(Saros 126)

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References

  1. ↑ "April 9, 1986 Partial Solar Eclipse". timeanddate. Retrieved 9 August 2024.
  2. ↑ "Partial Solar Eclipse of 1986 Apr 09". EclipseWise.com. Retrieved 9 August 2024.
  3. ↑ 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.
  4. ↑ "NASA - Catalog of Solar Eclipses of Saros 119". eclipse.gsfc.nasa.gov.
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