Solar eclipse of May 19, 1985

Last updated
Solar eclipse of May 19, 1985
SE1985May19P.png
Map
Type of eclipse
NaturePartial
Gamma 1.072
Magnitude 0.8406
Maximum eclipse
Coordinates 63°12′N81°06′E / 63.2°N 81.1°E / 63.2; 81.1
Times (UTC)
Greatest eclipse21:29:38
References
Saros 147 (21 of 80)
Catalog # (SE5000) 9476

A partial solar eclipse occurred at the Moon's ascending node of orbit between Sunday, May 19 and Monday, May 20, 1985, [1] with a magnitude of 0.8406. 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 near sunrise on May 20 over Japan and northeast Russia and ended on May 19 over Alaska and near sunset over northern Canada and Greenland.

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]

May 19, 1985 Solar Eclipse Times
EventTime (UTC)
First Penumbral External Contact1985 May 19 at 19:15:42.2 UTC
Greatest Eclipse1985 May 19 at 21:29:37.8 UTC
Ecliptic Conjunction1985 May 19 at 21:42:01.7 UTC
Equatorial Conjunction1985 May 19 at 22:11:12.4 UTC
Last Penumbral External Contact1985 May 19 at 23:43:13.0 UTC
May 19, 1985 Solar Eclipse Parameters
ParameterValue
Eclipse Magnitude0.84064
Eclipse Obscuration0.77714
Gamma1.07197
Sun Right Ascension03h46m23.8s
Sun Declination+19°54'02.6"
Sun Semi-Diameter15'48.3"
Sun Equatorial Horizontal Parallax08.7"
Moon Right Ascension03h45m05.8s
Moon Declination+20°49'15.8"
Moon Semi-Diameter14'49.5"
Moon Equatorial Horizontal Parallax0°54'24.6"
ΔT54.5 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 May 1985
May 4
Descending node (full moon)
 May 19
Ascending node (new moon)
Lunar eclipse chart close-1985May04.png SE1985May19P.png
Total lunar eclipse
Lunar Saros 121		 Partial solar eclipse
Solar Saros 147

Eclipses in 1985

Metonic

Tzolkinex

Half-Saros

Tritos

Solar Saros 147

Inex

Triad

Solar eclipses of 1982–1985

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]

The partial solar eclipses on January 25, 1982 and July 20, 1982 occur in the previous lunar year eclipse set.

Solar eclipse series sets from 1982 to 1985
Ascending node Descending node
SarosMapGammaSarosMapGamma
117 June 21, 1982
SE1982Jun21P.png
Partial		−1.2102122 December 15, 1982
SE1982Dec15P.png
Partial		1.1293
127 June 11, 1983
SE1983Jun11T.png
Total		−0.4947132 December 4, 1983
SE1983Dec04A.png
Annular		0.4015
137 May 30, 1984
SE1984May30A.png
Annular		0.2755142
Solar eclipse of 22 November 1984.JPG
Partial in Gisborne,
New Zealand 		November 22, 1984
SE1984Nov22T.png
Total		−0.3132
147 May 19, 1985
SE1985May19P.png
Partial		1.072152 November 12, 1985
SE1985Nov12T.png
Total		−0.9795

Saros 147

This eclipse is a part of Saros series 147, repeating every 18 years, 11 days, and containing 80 events. The series started with a partial solar eclipse on October 12, 1624. It contains annular eclipses from May 31, 2003 through July 31, 2706. There are no hybrid or total eclipses in this set. The series ends at member 80 as a partial eclipse on February 24, 3049. 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 annularity will be produced by member 38 at 9 minutes, 41 seconds on November 21, 2291. All eclipses in this series occur at the Moon’s ascending node of orbit. [4]

Series members 11–32 occur between 1801 and 2200:
111213
SE1805Jan30P.gif
January 30, 1805		 SE1823Feb11P.gif
February 11, 1823		 SE1841Feb21P.gif
February 21, 1841
141516
SE1859Mar04P.gif
March 4, 1859		 SE1877Mar15P.gif
March 15, 1877		 SE1895Mar26P.gif
March 26, 1895
171819
SE1913Apr06P.png
April 6, 1913 		SE1931Apr18P.png
April 18, 1931 		SE1949Apr28P.png
April 28, 1949
202122
SE1967May09P.png
May 9, 1967 		SE1985May19P.png
May 19, 1985 		SE2003May31A.png
May 31, 2003
232425
SE2021Jun10A.png
June 10, 2021 		SE2039Jun21A.png
June 21, 2039 		SE2057Jul01A.png
July 1, 2057
262728
SE2075Jul13A.png
July 13, 2075 		SE2093Jul23A.png
July 23, 2093 		SE2111Aug04A.png
August 4, 2111
293031
SE2129Aug15A.png
August 15, 2129		 Saros147 30van80 SE2147Aug26A.jpg
August 26, 2147		 Saros147 31van80 SE2165Sep05A.jpg
September 5, 2165
32
Saros147 32van80 SE2183Sep16A.jpg
September 16, 2183

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.

22 eclipse events between December 24, 1916 and July 31, 2000
December 24–25October 12July 31–August 1May 19–20March 7
111113115117119
SE1916Dec24P.png
December 24, 1916 		SE1924Jul31P.png
July 31, 1924 		SE1928May19T.png
May 19, 1928 		SE1932Mar07A.png
March 7, 1932
121123125127129
SE1935Dec25A.png
December 25, 1935 		SE1939Oct12T.png
October 12, 1939 		SE1943Aug01A.png
August 1, 1943 		SE1947May20T.png
May 20, 1947 		SE1951Mar07A.png
March 7, 1951
131133135137139
SE1954Dec25A.png
December 25, 1954 		SE1958Oct12T.png
October 12, 1958 		SE1962Jul31A.png
July 31, 1962 		SE1966May20A.png
May 20, 1966 		SE1970Mar07T.png
March 7, 1970
141143145147149
SE1973Dec24A.png
December 24, 1973 		SE1977Oct12T.png
October 12, 1977 		SE1981Jul31T.png
July 31, 1981 		SE1985May19P.png
May 19, 1985 		SE1989Mar07P.png
March 7, 1989
151153155
SE1992Dec24P.png
December 24, 1992 		SE1996Oct12P.png
October 12, 1996 		SE2000Jul31P.png
July 31, 2000

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.

The partial solar eclipses on December 7, 2170 (part of Saros 164) and November 7, 2181 (part of Saros 165) are also a part of this series but are not included in the table below.

Series members between 1801 and 2105
SE1810Sep28A.gif
September 28, 1810
(Saros 131)		 SE1821Aug27A.gif
August 27, 1821
(Saros 132)		 SE1832Jul27T.gif
July 27, 1832
(Saros 133)		 SE1843Jun27H.gif
June 27, 1843
(Saros 134)		 SE1854May26A.png
May 26, 1854
(Saros 135)
SE1865Apr25T.png
April 25, 1865
(Saros 136)		 SE1876Mar25A.gif
March 25, 1876
(Saros 137)		 SE1887Feb22A.png
February 22, 1887
(Saros 138)		 SE1898Jan22T.png
January 22, 1898
(Saros 139)		 SE1908Dec23H.png
December 23, 1908
(Saros 140)
SE1919Nov22A.png
November 22, 1919
(Saros 141)		 SE1930Oct21T.png
October 21, 1930
(Saros 142)		 SE1941Sep21T.png
September 21, 1941
(Saros 143)		 SE1952Aug20A.png
August 20, 1952
(Saros 144)		 SE1963Jul20T.png
July 20, 1963
(Saros 145)
SE1974Jun20T.png
June 20, 1974
(Saros 146)		 SE1985May19P.png
May 19, 1985
(Saros 147)		 SE1996Apr17P.png
April 17, 1996
(Saros 148)		 SE2007Mar19P.png
March 19, 2007
(Saros 149)		 SE2018Feb15P.png
February 15, 2018
(Saros 150)
SE2029Jan14P.png
January 14, 2029
(Saros 151)		 SE2039Dec15T.png
December 15, 2039
(Saros 152)		 SE2050Nov14P.png
November 14, 2050
(Saros 153)		 SE2061Oct13A.png
October 13, 2061
(Saros 154)		 SE2072Sep12T.png
September 12, 2072
(Saros 155)
SE2083Aug13P.png
August 13, 2083
(Saros 156)		 SE2094Jul12P.png
July 12, 2094
(Saros 157)		 Saros158 03van70 SE2105Jun12P.jpg
June 12, 2105
(Saros 158)

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
SE1811Sep17A.gif
September 17, 1811
(Saros 141)		 SE1840Aug27T.gif
August 27, 1840
(Saros 142)		 SE1869Aug07T.png
August 7, 1869
(Saros 143)
SE1898Jul18A.png
July 18, 1898
(Saros 144)		 SE1927Jun29T.png
June 29, 1927
(Saros 145)		 SE1956Jun08T.png
June 8, 1956
(Saros 146)
SE1985May19P.png
May 19, 1985
(Saros 147)		 SE2014Apr29A.png
April 29, 2014
(Saros 148)		 SE2043Apr09T.png
April 9, 2043
(Saros 149)
SE2072Mar19P.png
March 19, 2072
(Saros 150)		 SE2101Feb28A.png
February 28, 2101
(Saros 151)		 Saros152 19van70 SE2130Feb08T.jpg
February 8, 2130
(Saros 152)
Saros153 17van70 SE2159Jan19A.jpg
January 19, 2159
(Saros 153)		 Saros154 16van71 SE2187Dec29A.jpg
December 29, 2187
(Saros 154)

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References

  1. ↑ "May 19, 1985 Partial Solar Eclipse". timeanddate. Retrieved 9 August 2024.
  2. ↑ "Partial Solar Eclipse of 1985 May 19". 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 147". eclipse.gsfc.nasa.gov.
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