Solar eclipse of January 26, 1990

Last updated
Solar eclipse of January 26, 1990
SE1990Jan26A.png
Map
Type of eclipse
NatureAnnular
Gamma −0.9457
Magnitude 0.967
Maximum eclipse
Duration123 s (2 min 3 s)
Coordinates 71°00′S22°12′W / 71°S 22.2°W / -71; -22.2
Max. width of band373 km (232 mi)
Times (UTC)
Greatest eclipse19:31:24
References
Saros 121 (59 of 71)
Catalog # (SE5000) 9486

An annular solar eclipse occurred at the Moon's ascending node of orbit on Friday, January 26, 1990, with a magnitude of 0.967. 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. An annular solar eclipse occurs when the Moon's apparent diameter is smaller than the Sun's, blocking most of the Sun's light and causing the Sun to look like an annulus (ring). An annular eclipse appears as a partial eclipse over a region of the Earth thousands of kilometres wide.

Contents

Eclipses in 1990

Metonic

Tzolkinex

Half-Saros

Tritos

Solar Saros 121

Inex

Triad

Solar eclipses of 1990–1992

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. [1]

Solar eclipse series sets from 1990 to 1992
Ascending node Descending node
SarosMapGammaSarosMapGamma
121 January 26, 1990
SE1990Jan26A.png
Annular
−0.9457126
1990.04 Pimennys (28866343838) (cropped).jpg
Partial in Finland
July 22, 1990
SE1990Jul22T.png
Total
0.7597
131 January 15, 1991
SE1991Jan15A.png
Annular
−0.2727136
Eclipse CR 1991 a zoom.jpg
Totality in Playas del Coco,
Costa Rica
July 11, 1991
SE1991Jul11T.png
Total
−0.0041
141 January 4, 1992
SE1992Jan04A.png
Annular
0.4091146 June 30, 1992
SE1992Jun30T.png
Total
−0.7512
151 December 24, 1992
SE1992Dec24P.png
Partial
1.0711

Saros 121

This eclipse is a part of Saros series 121, repeating every 18 years, 11 days, and containing 71 events. The series started with a partial solar eclipse on April 25, 944 AD. It contains total eclipses from July 10, 1070 through October 9, 1809; hybrid eclipses on October 20, 1827 and October 30, 1845; and annular eclipses from November 11, 1863 through February 28, 2044. The series ends at member 71 as a partial eclipse on June 7, 2206. 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 39 at 6 minutes, 20 seconds on June 21, 1629, and the longest duration of annularity will be produced by member 62 at 2 minutes, 27 seconds on February 28, 2044. All eclipses in this series occur at the Moon’s ascending node of orbit. [2]

Series members 49–70 occur between 1801 and 2200:
495051
SE1809Oct09T.gif
October 9, 1809
SE1827Oct20H.gif
October 20, 1827
SE1845Oct30H.gif
October 30, 1845
525354
SE1863Nov11A.gif
November 11, 1863
SE1881Nov21A.png
November 21, 1881
SE1899Dec03A.png
December 3, 1899
555657
SE1917Dec14A.png
December 14, 1917
SE1935Dec25A.png
December 25, 1935
SE1954Jan05A.png
January 5, 1954
585960
SE1972Jan16A.png
January 16, 1972
SE1990Jan26A.png
January 26, 1990
SE2008Feb07A.png
February 7, 2008
616263
SE2026Feb17A.png
February 17, 2026
SE2044Feb28A.png
February 28, 2044
SE2062Mar11P.png
March 11, 2062
646566
SE2080Mar21P.png
March 21, 2080
SE2098Apr01P.png
April 1, 2098
Saros121 66van71 SE2116Apr13P.jpg
April 13, 2116
676869
Saros121 67van71 SE2134Apr24P.jpg
April 24, 2134
Saros121 68van71 SE2152May04P.jpg
May 4, 2152
Saros121 69van71 SE2170May16P.jpg
May 16, 2170
70
Saros121 70van71 SE2188May26P.jpg
May 26, 2188

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 1837 and 2200
SE1837Apr05P.png
April 5, 1837
(Saros 107)
SE1848Mar05P.gif
March 5, 1848
(Saros 108)
SE1859Feb03P.png
February 3, 1859
(Saros 109)
SE1880Dec02P.gif
December 2, 1880
(Saros 111)
SE1913Aug31P.png
August 31, 1913
(Saros 114)
SE1924Jul31P.png
July 31, 1924
(Saros 115)
SE1935Jun30P.png
June 30, 1935
(Saros 116)
SE1946May30P.png
May 30, 1946
(Saros 117)
SE1957Apr30A.png
April 30, 1957
(Saros 118)
SE1968Mar28P.png
March 28, 1968
(Saros 119)
SE1979Feb26T.png
February 26, 1979
(Saros 120)
SE1990Jan26A.png
January 26, 1990
(Saros 121)
SE2000Dec25P.png
December 25, 2000
(Saros 122)
SE2011Nov25P.png
November 25, 2011
(Saros 123)
SE2022Oct25P.png
October 25, 2022
(Saros 124)
SE2033Sep23P.png
September 23, 2033
(Saros 125)
SE2044Aug23T.png
August 23, 2044
(Saros 126)
SE2055Jul24T.png
July 24, 2055
(Saros 127)
SE2066Jun22A.png
June 22, 2066
(Saros 128)
SE2077May22T.png
May 22, 2077
(Saros 129)
SE2088Apr21T.png
April 21, 2088
(Saros 130)
SE2099Mar21A.png
March 21, 2099
(Saros 131)
SE2110Feb18A.png
February 18, 2110
(Saros 132)
SE2121Jan19T.png
January 19, 2121
(Saros 133)
SE2131Dec19A.png
December 19, 2131
(Saros 134)
SE2142Nov17A.png
November 17, 2142
(Saros 135)
SE2153Oct17T.png
October 17, 2153
(Saros 136)
SE2164Sep16A.png
September 16, 2164
(Saros 137)
SE2175Aug16A.png
August 16, 2175
(Saros 138)
SE2186Jul16T.png
July 16, 2186
(Saros 139)
SE2197Jun15A.png
June 15, 2197
(Saros 140)

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

Notes

  1. 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.
  2. "NASA - Catalog of Solar Eclipses of Saros 121". eclipse.gsfc.nasa.gov.

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References