Solar eclipse of August 2, 2046

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 2044–2047
Ascending node			Descending node
121	February 28, 2044 Annular		126	August 23, 2044 Total
131	February 16, 2045 Annular		136	August 12, 2045 Total
141	February 5, 2046 Annular		146	August 2, 2046 Total
151	January 26, 2047 Partial		156	July 22, 2047 Partial
Partial solar eclipses on June 23, 2047 and December 16, 2047 occur on the next lunar year eclipse set.

It is a part of Saros cycle 146, repeating every 18 years, 11 days, containing 76 events. The series started with partial solar eclipse on September 19, 1541. It contains total eclipses from May 29, 1938, through October 7, 2154, hybrid eclipses from October 17, 2172, through November 20, 2226, and annular eclipses from December 1, 2244, through August 10, 2659. The series ends at member 76 as a partial eclipse on December 29, 2893. The longest duration of totality was 5 minutes, 21 seconds on June 30, 1992.

Series members 21-37 occur between 1901 and 2200:
21	22	23
May 7, 1902	May 18, 1920	May 29, 1938
24	25	26
June 8, 1956	June 20, 1974	June 30, 1992
27	28	29
July 11, 2010	July 22, 2028	August 2, 2046
30	31	32
August 12, 2064	August 24, 2082	September 4, 2100
33	34	35
September 15, 2118	September 26, 2136	October 7, 2154
36	37
October 17, 2172	October 29, 2190

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.

Inex series members between 1901 and 2100:
November 11, 1901 (Saros 141)	October 21, 1930 (Saros 142)	October 2, 1959 (Saros 143)
September 11, 1988 (Saros 144)	August 21, 2017 (Saros 145)	August 2, 2046 (Saros 146)
July 13, 2075 (Saros 147)

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
September 9, 1904 (Saros 133)	August 10, 1915 (Saros 134)	July 9, 1926 (Saros 135)
June 8, 1937 (Saros 136)	May 9, 1948 (Saros 137)	April 8, 1959 (Saros 138)
March 7, 1970 (Saros 139)	February 4, 1981 (Saros 140)	January 4, 1992 (Saros 141)
December 4, 2002 (Saros 142)	November 3, 2013 (Saros 143)	October 2, 2024 (Saros 144)
September 2, 2035 (Saros 145)	August 2, 2046 (Saros 146)	July 1, 2057 (Saros 147)
May 31, 2068 (Saros 148)	May 1, 2079 (Saros 149)	March 31, 2090 (Saros 150)

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.[2]

Octon series with 21 events between May 21, 1993 and August 2, 2065
May 20–21	March 8–9	December 25–26	October 13–14	August 1–2
98	100	102	104	106
May 21, 1955	March 9, 1959	December 26, 1962	October 14, 1966	August 2, 1970
108	110	112	114	116
May 21, 1974	March 9, 1978	December 26, 1981	October 14, 1985	August 1, 1989
118	120	122	124	126
May 21, 1993	March 9, 1997	December 25, 2000	October 14, 2004	August 1, 2008
128	130	132	134	136
May 20, 2012	March 9, 2016	December 26, 2019	October 14, 2023	August 2, 2027
138	140	142	144	146
May 21, 2031	March 9, 2035	December 26, 2038	October 14, 2042	August 2, 2046
148	150	152	154	156
May 20, 2050	March 9, 2054	December 26, 2057	October 13, 2061	August 2, 2065
158	160	162	164	166
May 20, 2069	March 8, 2073	December 26, 2076	October 13, 2080	August 1, 2084