Solar eclipse of March 28, 1968

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 1968–1971
Ascending node			Descending node
Saros	Map		Saros	Map
119	1968 March 28 Partial		124	1968 September 22 Total
129	1969 March 18 Annular		134	1969 September 11 Annular
139	1970 March 7 Total		144	1970 August 31 Annular
149	1971 February 25 Partial		154	1971 August 20 Partial
A partial solar eclipse of July 22, 1971 occurs in the next lunar year set.

It is a part of Saros cycle 119, repeating every 18 years, 11 days, containing 71 events. The series started with partial solar eclipse on May 15, 850 AD. It contains total eclipses on August 9, 994 AD and August 20, 1012 with a hybrid eclipse on August 31, 1030. It has annular eclipses from September 10, 1048 through March 18, 1950. The series ends at member 71 as a partial eclipse on June 24, 2112. The longest duration of totality was only 32 seconds on August 20, 1012. The longest duration of annularity was 7 minutes, 37 seconds on September 1, 1625. The longest duration of hybridity was only 18 seconds on August 31, 1030.

Series members 54–70 occur between 1801 and 2100:
54	55	56
December 21, 1805	January 1, 1824	January 11, 1842
57	58	59
January 23, 1860	February 2, 1878	February 13, 1896
60	61	62
February 25, 1914	March 7, 1932	March 18, 1950
63	64	65
March 28, 1968	April 9, 1986	April 19, 2004
66	67	68
April 30, 2022	May 11, 2040	May 22, 2058
69	70
June 1, 2076	June 13, 2094

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, progressing from south to north between June 10, 1964, and August 21, 2036
June 10–11	March 27–29	January 15–16	November 3	August 21–22
117	119	121	123	125
June 10, 1964	March 28, 1968	January 16, 1972	November 3, 1975	August 22, 1979
127	129	131	133	135
June 11, 1983	March 29, 1987	January 15, 1991	November 3, 1994	August 22, 1998
137	139	141	143	145
June 10, 2002	March 29, 2006	January 15, 2010	November 3, 2013	August 21, 2017
147	149	151	153	155
June 10, 2021	March 29, 2025	January 14, 2029	November 3, 2032	August 21, 2036