Template:Solar Tritos series 2001 June 21
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 2200 | ||||
|---|---|---|---|---|
 January 1, 1805 (Saros 109) |
 October 31, 1826 (Saros 111) |
 August 28, 1848 (Saros 113) | ||
 July 29, 1859 (Saros 114) |
 June 28, 1870 (Saros 115) |
 May 27, 1881 (Saros 116) |
 April 26, 1892 (Saros 117) |
 March 29, 1903 (Saros 118) |
 February 25, 1914 (Saros 119) |
 January 24, 1925 (Saros 120) |
 December 25, 1935 (Saros 121) |
 November 23, 1946 (Saros 122) |
 October 23, 1957 (Saros 123) |
 September 22, 1968 (Saros 124) |
 August 22, 1979 (Saros 125) |
 July 22, 1990 (Saros 126) |
 June 21, 2001 (Saros 127) |
 May 20, 2012 (Saros 128) |
 April 20, 2023 (Saros 129) |
 March 20, 2034 (Saros 130) |
 February 16, 2045 (Saros 131) |
 January 16, 2056 (Saros 132) |
 December 17, 2066 (Saros 133) |
 November 15, 2077 (Saros 134) |
 October 14, 2088 (Saros 135) |
 September 14, 2099 (Saros 136) |
 August 15, 2110 (Saros 137) |
 July 14, 2121 (Saros 138) |
 June 13, 2132 (Saros 139) |
 May 14, 2143 (Saros 140) |
 April 12, 2154 (Saros 141) |
 March 12, 2165 (Saros 142) |
 February 10, 2176 (Saros 143) |
 January 9, 2187 (Saros 144) |
 December 9, 2197 (Saros 145) | |||