Template:Solar Tritos series 1982 July 20
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 1801 and 1982 | ||||
|---|---|---|---|---|
 November 29, 1807 (Saros 139) |
 October 29, 1818 (Saros 140) |
 September 28, 1829 (Saros 141) |
 August 27, 1840 (Saros 142) |
 July 28, 1851 (Saros 143) |
 June 27, 1862 (Saros 144) |
 May 26, 1873 (Saros 145) |
 April 25, 1884 (Saros 146) |
 March 26, 1895 (Saros 147) |
 February 23, 1906 (Saros 148) |
 January 23, 1917 (Saros 149) |
 December 24, 1927 (Saros 150) |
 November 21, 1938 (Saros 151) |
 October 21, 1949 (Saros 152) |
 September 20, 1960 (Saros 153) |
 August 20, 1971 (Saros 154) |
 July 20, 1982 (Saros 155) | |||