Solar eclipse of July 13, 2018

• A total lunar eclipse on January 31.
• A partial solar eclipse on February 15.
• A partial solar eclipse on July 13.
• A total lunar eclipse on July 27.
• A partial solar eclipse on August 11.

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.[4]

Note: Partial solar eclipses on February 15, 2018, and August 11, 2018, occurred during the previous semester series.

Solar eclipse series sets from 2018–2021

Ascending node				Descending node
Saros	Map	Gamma		Saros	Map	Gamma
117 Partial from Melbourne, Australia	2018 July 13 Partial	−1.35423		122 Partial from Nakhodka, Russia	2019 January 6 Partial	1.14174
127 La Serena, Chile	2019 July 2 Total	−0.64656		132 Jaffna, Sri Lanka	2019 December 26 Annular	0.41351
137 Beigang, Yunlin, Taiwan	2020 June 21 Annular	0.12090		142 Gorbea, Chile	2020 December 14 Total	−0.29394
147 Partial from Halifax, Canada	2021 June 10 Annular	0.91516		152 From HMS Protector off South Georgia	2021 December 4 Total	−0.95261

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 July 13, 2018 and July 12, 2094
July 12–13	April 30-May 1	February 16–17	December 5–6	September 22–23
117	119	121	123	125
July 13, 2018	April 30, 2022	February 17, 2026	December 5, 2029	September 23, 2033
127	129	131	133	135
July 13, 2037	April 30, 2041	February 16, 2045	December 5, 2048	September 22, 2052
137	139	141	143	145
July 12, 2056	April 30, 2060	February 17, 2064	December 6, 2067	September 23, 2071
147	149	151	153	155
July 13, 2075	May 1, 2079	February 16, 2083	December 6, 2086	September 23, 2090
157
July 12, 2094