An annular solar eclipse occurred on March 18, 1969. 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. Annularity was visible from part of Indonesia, and two atolls (Faraulep and Gaferut) in the Trust Territory of the Pacific Islands which belongs to the Federated States of Micronesia now.
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]
It is a part of Saros cycle 129, repeating every 18 years, 11 days, containing 80 events. The series started with partial solar eclipse on October 3, 1103. It contains annular eclipses on May 6, 1464 through March 18, 1969, hybrid eclipses from March 29, 1987 through April 20, 2023 and total eclipses from April 30, 2041 through July 26, 2185. The series ends at member 80 as a partial eclipse on February 21, 2528. The longest duration of totality was 3 minutes, 43 seconds on June 25, 2131 . All eclipses in this series occurs at the Moon’s ascending node.[2]
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 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 January 5, 1935 and August 11, 2018
^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.
^Espenak, F. "NASA Catalog of Solar Eclipses of Saros 129". eclipse.gsfc.nasa.gov.
Referencesedit
Earth visibility chart and eclipse statistics Eclipse Predictions by Fred Espenak, NASA/GSFC
Google interactive map
Besselian elements
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An annular solar eclipse occurred on March 18 1969 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 Annularity was visible from part of Indonesia and two atolls Faraulep and Gaferut in the Trust Territory of the Pacific Islands which belongs to the Federated States of Micronesia now Solar eclipse of March 18 1969MapType of eclipseNatureAnnularGamma 0 2704Magnitude0 9954Maximum eclipseDuration26 sec 0 m 26 s Coordinates14 48 S 116 18 E 14 8 S 116 3 E 14 8 116 3Max width of band16 km 9 9 mi Times UTC Greatest eclipse4 54 57ReferencesSaros129 49 of 80 Catalog SE5000 9440 Contents 1 Related eclipses 1 1 Solar eclipses of 1968 1971 1 2 Saros 129 1 3 Tritos series 1 4 Metonic series 2 Notes 3 ReferencesRelated eclipses editSolar eclipses of 1968 1971 edit 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 1968 1971Ascending node Descending nodeSaros Map Gamma Saros Map Gamma119 nbsp 1968 March 28Partial 1 03704 124 nbsp 1968 September 22Total 0 94507129 nbsp 1969 March 18Annular 0 27037 134 nbsp 1969 September 11Annular 0 22014139 nbsp 1970 March 7Total 0 44728 144 nbsp 1970 August 31Annular 0 53640149 nbsp 1971 February 25Partial 1 11876 154 nbsp 1971 August 20Partial 1 26591A partial solar eclipse of July 22 1971 occurs in the next lunar year set Saros 129 edit It is a part of Saros cycle 129 repeating every 18 years 11 days containing 80 events The series started with partial solar eclipse on October 3 1103 It contains annular eclipses on May 6 1464 through March 18 1969 hybrid eclipses from March 29 1987 through April 20 2023 and total eclipses from April 30 2041 through July 26 2185 The series ends at member 80 as a partial eclipse on February 21 2528 The longest duration of totality was 3 minutes 43 seconds on June 25 2131 All eclipses in this series occurs at the Moon s ascending node 2 Series members 46 56 occur between 1901 and 2100 46 47 48 nbsp February 14 1915 nbsp February 24 1933 nbsp March 7 195149 50 51 nbsp March 18 1969 nbsp March 29 1987 nbsp April 8 200552 53 54 nbsp April 20 2023 nbsp April 30 2041 nbsp May 11 205955 56 nbsp May 22 2077 nbsp June 2 2095Tritos series edit 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 1901 and 2100 nbsp September 21 1903 Saros 123 nbsp August 21 1914 Saros 124 nbsp July 20 1925 Saros 125 nbsp June 19 1936 Saros 126 nbsp May 20 1947 Saros 127 nbsp April 19 1958 Saros 128 nbsp March 18 1969 Saros 129 nbsp February 16 1980 Saros 130 nbsp January 15 1991 Saros 131 nbsp December 14 2001 Saros 132 nbsp November 13 2012 Saros 133 nbsp October 14 2023 Saros 134 nbsp September 12 2034 Saros 135 nbsp August 12 2045 Saros 136 nbsp July 12 2056 Saros 137 nbsp June 11 2067 Saros 138 nbsp May 11 2078 Saros 139 nbsp April 10 2089 Saros 140 nbsp March 10 2100 Saros 141 Metonic series edit 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 January 5 1935 and August 11 2018January 4 5 October 23 24 August 10 12 May 30 31 March 18 19111 113 115 117 119 nbsp January 5 1935 nbsp August 12 1942 nbsp May 30 1946 nbsp March 18 1950121 123 125 127 129 nbsp January 5 1954 nbsp October 23 1957 nbsp August 11 1961 nbsp May 30 1965 nbsp March 18 1969131 133 135 137 139 nbsp January 4 1973 nbsp October 23 1976 nbsp August 10 1980 nbsp May 30 1984 nbsp March 18 1988141 143 145 147 149 nbsp January 4 1992 nbsp October 24 1995 nbsp August 11 1999 nbsp May 31 2003 nbsp March 19 2007151 153 155 nbsp January 4 2011 nbsp October 23 2014 nbsp August 11 2018Notes edit 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 Espenak F NASA Catalog of Solar Eclipses of Saros 129 eclipse gsfc nasa gov References editEarth visibility chart and eclipse statistics Eclipse Predictions by Fred Espenak NASA GSFC Google interactive map Besselian elements nbsp Wikimedia Commons has media related to Solar eclipse of 1969 March 18 nbsp This solar eclipse related article is a stub You can help Wikipedia by expanding it vte Retrieved from https en wikipedia org w index php title Solar eclipse of March 18 1969 amp oldid 1047606201, wikipedia, wiki, book, books, library,
