Solar eclipse of July 22, 1990

Last updated
Solar eclipse of July 22, 1990
1990.04 Pimennys (28866343838) (cropped).jpg
Partial from Finland
SE1990Jul22T.png
Map
Type of eclipse
NatureTotal
Gamma 0.7597
Magnitude 1.0391
Maximum eclipse
Duration153 s (2 min 33 s)
Coordinates 65°12′N168°54′E / 65.2°N 168.9°E / 65.2; 168.9
Max. width of band201 km (125 mi)
Times (UTC)
Greatest eclipse3:03:07
References
Saros 126 (46 of 72)
Catalog # (SE5000) 9487

A total solar eclipse occurred on Sunday, July 22, 1990. 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 total solar eclipse occurs when the Moon's apparent diameter is larger than the Sun's, blocking all direct sunlight, turning day into darkness. Totality occurs in a narrow path across Earth's surface, with the partial solar eclipse visible over a surrounding region thousands of kilometres wide. Totality was visible in southern Finland, the Soviet Union (including today's northern Estonia and northern Russia), and eastern Andreanof Islands and Amukta of Alaska.

Contents

In Finland, the solar eclipse occurred during sunrise and enabled observation and photography without protective glasses, which was however hampered by strong clouds. [1] The Sun was totally eclipsed in Helsinki began at 06:03:07 local time.

Eclipses of 1990

Solar eclipses 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. [2] This semester series contains only 7 eclipses.

Solar eclipse series sets from 1990 to 1992
Ascending node Descending node
SarosMapGammaSarosMapGamma
1111989 February 6−1.565501161989 August 11.58396
121 1990 January 26
SE1990Jan26A.png
Annular
−0.94571126 1990 July 22
SE1990Jul22T.png
Total
0.75972
131 1991 January 15
SE1991Jan15A.png
Annular
−0.27275136
Eclipse CR 1991 a zoom.jpg
From Playas del Coco
1991 July 11
SE1991Jul11T.png
Total
−0.00412
141 1992 January 4
SE1992Jan04A.png
Annular
0.40908146 1992 June 30
SE1992Jun30T.png
Total
−0.75120
151 1992 December 24
SE1992Dec24P.png
Partial
1.071061561993 June 20−1.56439

Saros 126

It is a part of Saros cycle 126, repeating every 18 years, 11 days, containing 72 events. The series started with partial solar eclipse on March 10, 1179. It contains annular eclipses from June 4, 1323 through April 4, 1810, hybrid eclipses from April 14, 1828 through May 6, 1864 and total eclipses from May 17, 1882 through August 23, 2044. The series ends at member 72 as a partial eclipse on May 3, 2459. The longest duration of central eclipse (annular or total) was 6 minutes, 30 seconds of annularity on June 26, 1359. The longest duration of totality was 2 minutes, 36 seconds on July 10, 1972. All eclipses in this series occurs at the Moon’s descending node.

Series members 42–52 occur between 1901 and 2100
424344
SE1918Jun08T.png
June 8, 1918
SE1936Jun19T.png
June 19, 1936
SE1954Jun30T.png
June 30, 1954
454647
SE1972Jul10T.png
July 10, 1972
SE1990Jul22T.png
July 22, 1990
SE2008Aug01T.png
August 1, 2008
484950
SE2026Aug12T.png
August 12, 2026
SE2044Aug23T.png
August 23, 2044
SE2062Sep03P.png
September 3, 2062
5152
SE2080Sep13P.png
September 13, 2080
SE2098Sep25P.png
September 25, 2098

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.

In the 19th century:

In the 22nd century:

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.

Metonic cycle

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 descending node.

21 events between July 22, 1971 and July 22, 2047
July 21–22May 9–11February 26–27December 14–15October 2–3
116118120122124
SE1971Jul22P.png
July 22, 1971
SE1975May11P.png
May 11, 1975
SE1979Feb26T.png
February 26, 1979
SE1982Dec15P.png
December 15, 1982
SE1986Oct03H.png
October 3, 1986
126128130132134
SE1990Jul22T.png
July 22, 1990
SE1994May10A.png
May 10, 1994
SE1998Feb26T.png
February 26, 1998
SE2001Dec14A.png
December 14, 2001
SE2005Oct03A.png
October 3, 2005
136138140142144
SE2009Jul22T.png
July 22, 2009
SE2013May10A.png
May 10, 2013
SE2017Feb26A.png
February 26, 2017
SE2020Dec14T.png
December 14, 2020
SE2024Oct02A.png
October 2, 2024
146148150152154
SE2028Jul22T.png
July 22, 2028
SE2032May09A.png
May 9, 2032
SE2036Feb27P.png
February 27, 2036
SE2039Dec15T.png
December 15, 2039
SE2043Oct03A.png
October 3, 2043
156
SE2047Jul22P.png
July 22, 2047

Notes

  1. "Sonnenfinsternis in Finnland". www.bujack.de. Retrieved 2023-12-21.
  2. 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.

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References

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