Solar eclipse of May 11, 1975

20th-century partial solar eclipse
69°42′N 80°12′W / 69.7°N 80.2°W / 69.7; -80.2Times (UTC)Greatest eclipse7:17:33ReferencesSaros118 (66 of 72)Catalog # (SE5000)9454

A partial solar eclipse occurred at the Moon's descending node of the orbit on Sunday, May 11, 1975. 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.

Related eclipses

Eclipses in 1975

Solar eclipses of 1975–1978

There were 8 solar eclipses (at 6 month intervals) between May 11, 1975 and October 2, 1978.

Solar eclipse series sets from 1975 to 1978
Descending node   Ascending node
Saros Map Gamma Saros Map Gamma
118
1975 May 11
Partial		 1.06472 123
1975 November 3
Partial		 −1.02475
128
1976 April 29
Annular		 0.33783 133
1976 October 23
Total		 −0.32699
138
1977 April 18
Annular		 −0.39903 143
1977 October 12
Total		 0.38363
148
1978 April 7
Partial		 −1.10812 153
1978 October 2
Partial		 1.16164

Saros 118

It is a part of Saros cycle 118, repeating every 18 years, 11 days, containing 72 events. The series started with partial solar eclipse on May 24, 803 AD. It contains total eclipses from August 19, 947 AD through October 25, 1650, hybrid eclipses on November 4, 1668 and November 15, 1686, and annular eclipses from November 27, 1704 through April 30, 1957. The series ends at member 72 as a partial eclipse on July 15, 2083. The longest duration of total was 6 minutes, 59 seconds on May 16, 1398.

Series members 62–72 occur between 1901 and 2083:
62 63 64

Mar 29, 1903
Apr 8, 1921
Apr 19, 1939
65 66 67

Apr 30, 1957
May 11, 1975
May 21, 1993
68 69 70

Jun 1, 2011
Jun 12, 2029
Jun 23, 2047
71 72

Jul 3, 2065
Jul 15, 2083

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 21–22 May 9–11 February 26–27 December 14–15 October 2–3
116 118 120 122 124

July 22, 1971
May 11, 1975
February 26, 1979
December 15, 1982
October 3, 1986
126 128 130 132 134

July 22, 1990
May 10, 1994
February 26, 1998
December 14, 2001
October 3, 2005
136 138 140 142 144

July 22, 2009
May 10, 2013
February 26, 2017
December 14, 2020
October 2, 2024
146 148 150 152 154

July 22, 2028
May 9, 2032
February 27, 2036
December 15, 2039
October 3, 2043
156

July 22, 2047

References

External links

  • Earth visibility chart and eclipse statistics Eclipse Predictions by Fred Espenak, NASA/GSFC
    • Google interactive map
    • Besselian elements
  • TimeAndDate.com: May 11, 1975 Partial Solar Eclipse appearance
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  • Preliminary results of observations of the solar eclipse of May 11, 1975 (Russian report)
  • Partial Eclipse of the Sun: 1975 May 11 Archived 2012-12-24 at archive.today HM Nautical Almanac Office
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