| E | Mag | O (JD) | O (dat) | C (JD) | C (Dat) | O-C | Source |
| -65 | 2412929 | 1894-04-10 | 2412951 | 1894-05-02 | -22 | AnHar, 1937, vol 105, p 459 | |
| -63 | 2413855 | 1896-10-22 | 2413861 | 1896-10-28 | -6 | GuL, 1920, 1.2 | |
| -56 | 9.5 | 2417007 | 1905-06-10 | 2417046 | 1905-07-19 | -39 | AAVSO |
| -55 | 9.6 | 2417457 | 1906-09-03 | 2417501 | 1906-10-17 | -44 | AAVSO |
| -54 | 9.6 | 2417916 | 1907-12-06 | 2417956 | 1908-01-15 | -40 | AAVSO |
| -53 | 10.0 | 2418354 | 1909-02-16 | 2418411 | 1909-04-14 | -57 | AAVSO |
| -52 | 9.5 | 2418836 | 1910-06-13 | 2418866 | 1910-07-13 | -30 | AAVSO |
| -51 | 10.2 | 2419281 | 1911-09-01 | 2419321 | 1911-10-11 | -40 | AAVSO |
| -50 | 9.9 | 2419733 | 1912-11-26 | 2419776 | 1913-01-08 | -43 | AAVSO |
| -49 | 9.0 | 2420153 | 1914-01-20 | 2420231 | 1914-04-08 | -78 | AAVSO |
| -48 | 2420611 | 1915-04-23 | 2420687 | 1915-07-08 | -76 | AAVSO | |
| -47 | 9.8 | 2421095 | 1916-08-19 | 2421142 | 1916-10-05 | -47 | SVO |
| -46 | 9.0 | 2421554 | 1917-11-21 | 2421597 | 1918-01-03 | -43 | AAVSO |
| -45 | 9.8 | 2422017 | 1919-02-27 | 2422052 | 1919-04-03 | -35 | AAVSO |
| -44 | 10.0 | 2422498 | 1920-06-22 | 2422507 | 1920-07-01 | -9 | AAVSO |
| -43 | 9.7 | 2422934 | 1921-09-01 | 2422962 | 1921-09-29 | -28 | SVO |
| -42 | 9.0 | 2423400 | 1922-12-11 | 2423417 | 1922-12-28 | -17 | AAVSO |
| -41 | 9.1 | 2423878 | 1924-04-02 | 2423872 | 1924-03-27 | 6 | SVO |
| -40 | 8.8 | 2424334 | 1925-07-02 | 2424327 | 1925-06-25 | 7 | AAVSO |
| -39 | 8.9 | 2424794 | 1926-10-05 | 2424782 | 1926-09-23 | 12 | AAVSO |
| -38 | 8.3 | 2425242 | 1927-12-27 | 2425237 | 1927-12-22 | 5 | AAVSO |
| -37 | 9.6 | 2425709 | 1929-04-07 | 2425692 | 1929-03-21 | 17 | AAVSO |
| -36 | 9.7 | 2426184 | 1930-07-26 | 2426147 | 1930-06-19 | 37 | SVO |
| -35 | 9.1 | 2426622 | 1931-10-07 | 2426602 | 1931-09-17 | 20 | SVO |
| -34 | 9.5 | 2427072 | 1932-12-30 | 2427057 | 1932-12-15 | 15 | SVO |
| -33 | 10.4 | 2427528 | 1934-03-31 | 2427512 | 1934-03-15 | 16 | SVO |
| -32 | 10.6 | 2427988 | 1935-07-04 | 2427967 | 1935-06-13 | 21 | SVO |
| -31 | 11.3 | 2428454 | 1936-10-12 | 2428422 | 1936-09-10 | 32 | SVO |
| -30 | 10.8 | 2428930 | 1938-01-31 | 2428877 | 1937-12-09 | 53 | SVO |
| -29 | 10.2 | 2429386 | 1939-05-02 | 2429332 | 1939-03-09 | 54 | SVO |
| -28 | 9.8 | 2429827 | 1940-07-16 | 2429787 | 1940-06-06 | 40 | SVO |
| -27 | 10.1 | 2430269 | 1941-10-01 | 2430242 | 1941-09-04 | 27 | SVO |
| -26 | 2430714 | 1942-12-20 | 2430697 | 1942-12-03 | 17 | AAVSO | |
| -25 | 10.0 | 2431235 | 1944-05-24 | 2431152 | 1944-03-02 | 83 | SVO |
| -24 | 9.4 | 2431652 | 1945-07-15 | 2431607 | 1945-05-31 | 45 | SVO |
| -23 | 9.3 | 2432085 | 1946-09-21 | 2432062 | 1946-08-29 | 23 | SVO |
| -22 | 9.3 | 2432544 | 1947-12-24 | 2432517 | 1947-11-27 | 27 | SVO |
| -21 | 9.4 | 2433014 | 1949-04-07 | 2432972 | 1949-02-24 | 42 | SVO |
| -20 | 9.8 | 2433479 | 1950-07-16 | 2433427 | 1950-05-25 | 52 | SVO |
| -19 | 9.9 | 2433932 | 1951-10-12 | 2433882 | 1951-08-23 | 50 | SVO |
| -18 | 9.6 | 2434351 | 1952-12-04 | 2434337 | 1952-11-20 | 14 | SVO |
| -17 | 10.2 | 2434828 | 1954-03-26 | 2434792 | 1954-02-18 | 36 | AAVSO |
| -16 | 9.8 | 2435292 | 1955-07-03 | 2435247 | 1955-05-19 | 45 | SVO |
| -15 | 9.6 | 2435722 | 1956-09-05 | 2435702 | 1956-08-16 | 20 | SVO |
| -14 | 9.4 | 2436146 | 1957-11-03 | 2436157 | 1957-11-14 | -11 | SVO |
| -13 | 9.6 | 2436628 | 1959-02-28 | 2436612 | 1959-02-12 | 16 | AAVSO |
| -12 | 9.5 | 2437099 | 1960-06-13 | 2437067 | 1960-05-12 | 32 | SVO |
| -11 | 9.4 | 2437505 | 1961-07-24 | 2437522 | 1961-08-10 | -17 | SVO |
| -10 | 9.4 | 2437955 | 1962-10-17 | 2437977 | 1962-11-08 | -22 | SVO |
| -9 | 9.5 | 2438417 | 1964-01-22 | 2438432 | 1964-02-06 | -15 | SVO |
| -8 | 9.9 | 2438891 | 1965-05-10 | 2438887 | 1965-05-06 | 4 | SVO |
| -7 | 9.5 | 2439333 | 1966-07-26 | 2439342 | 1966-08-04 | -9 | SVO |
| -6 | 9.8 | 2439792 | 1967-10-28 | 2439797 | 1967-11-02 | -5 | SVO |
| -5 | 9.4 | 2440234 | 1969-01-12 | 2440252 | 1969-01-30 | -18 | SVO |
| -4 | 9.5 | 2440703 | 1970-04-26 | 2440707 | 1970-04-30 | -4 | SVO |
| -3 | 9.4 | 2441152 | 1971-07-19 | 2441162 | 1971-07-29 | -10 | SVO |
| -2 | 9.5 | 2441607 | 1972-10-16 | 2441617 | 1972-10-26 | -10 | SVO |
| -1 | 9.3 | 2442064 | 1974-01-16 | 2442072 | 1974-01-24 | -8 | AAVSO |
| 0 | 9.6 | 2442518 | 1975-04-15 | 2442527 | 1975-04-24 | -9 | SVO |
| 1 | 9.8 | 2442990 | 1976-07-30 | 2442982 | 1976-07-22 | 8 | SVO |
| 2 | 9.5 | 2443424 | 1977-10-07 | 2443437 | 1977-10-20 | -13 | SVO |
| 3 | 9.8 | 2443881 | 1979-01-07 | 2443892 | 1979-01-18 | -11 | SVO |
| 4 | 9.8 | 2444375 | 1980-05-15 | 2444347 | 1980-04-17 | 28 | SVO |
| 5 | 9.2 | 2444824 | 1981-08-07 | 2444802 | 1981-07-16 | 22 | SVO |
| 6 | 9.6 | 2445267 | 1982-10-24 | 2445257 | 1982-10-14 | 10 | SVO |
| 7 | 10.4 | 2445753 | 1984-02-22 | 2445713 | 1984-01-13 | 40 | SVO |
| 8 | 10.2 | 2446217 | 1985-05-31 | 2446168 | 1985-04-12 | 49 | SVO |
| 9 | 10.7 | 2446664 | 1986-08-21 | 2446623 | 1986-07-11 | 41 | SVO |
| 10 | 10.1 | 2447122 | 1987-11-22 | 2447078 | 1987-10-09 | 44 | SVO |
| 11 | 10.6 | 2447569 | 1989-02-11 | 2447533 | 1989-01-06 | 36 | SVO |
| 12 | 10.2 | 2448060 | 1990-06-17 | 2447988 | 1990-04-06 | 72 | SVO |
| 13 | 9.1 | 2448460 | 1991-07-22 | 2448443 | 1991-07-05 | 17 | SVO |
| 14 | 10.4 | 2448918 | 1992-10-22 | 2448898 | 1992-10-02 | 20 | SVO |
| 15 | 10.9 | 2449375 | 1994-01-22 | 2449353 | 1993-12-31 | 22 | SVO |
| 16 | 10.7 | 2449838 | 1995-04-30 | 2449808 | 1995-03-31 | 30 | SVO |
| 17 | 10.2 | 2450288 | 1996-07-23 | 2450263 | 1996-06-28 | 25 | SVO |
| 18 | 9.7 | 2450719 | 1997-09-27 | 2450718 | 1997-09-26 | 1 | SVO |
| 19 | 9.9 | 2451176 | 1998-12-28 | 2451173 | 1998-12-25 | 3 | SVO |
| 20 | 9.8 | 2451626 | 2000-03-22 | 2451628 | 2000-03-24 | -2 | SVO |
| 21 | 10.1 | 2452069 | 2001-06-08 | 2452083 | 2001-06-22 | -14 | SVO |
| 22 | 10.0 | 2452531 | 2002-09-13 | 2452538 | 2002-09-20 | -7 | SVO |
| 23 | 9.9 | 2452948 | 2003-11-04 | 2452993 | 2003-12-19 | -45 | SVO |
| 24 | 10.1 | 2453425 | 2005-02-23 | 2453448 | 2005-03-18 | -23 | SVO |
| 25 | 9.8 | 2453906 | 2006-06-19 | 2453903 | 2006-06-16 | 3 | SVO |
| 26 | 10.5 | 2454354 | 2007-09-10 | 2454358 | 2007-09-14 | -4 | SVO |
| 27 | 10.1 | 2454830 | 2008-12-29 | 2454813 | 2008-12-12 | 17 | SVO |
| 28 | 9.2 | 2455238 | 2010-02-10 | 2455268 | 2010-03-12 | -30 | SVO |
| 29 | 10.1 | 2455704 | 2011-05-22 | 2455723 | 2011-06-10 | -19 | SVO |
| 30 | 9.8 | 2456165 | 2012-08-25 | 2456178 | 2012-09-07 | -13 | SVO |
| 31 | 9.3 | 2456598 | 2013-11-01 | 2456633 | 2013-12-06 | -35 | SVO |
| 32 | 9.8 | 2457045 | 2015-01-22 | 2457088 | 2015-03-06 | -43 | AAVSO |
| 33 | 9.4 | 2457497 | 2016-04-18 | 2457543 | 2016-06-03 | -46 | SVO |
| 34 | 9.8 | 2457958 | 2017-07-23 | 2457998 | 2017-09-01 | -40 | SVO |
| 35 | 9.2 | 2458413 | 2018-10-21 | 2458453 | 2018-11-30 | -40 | SVO |
| 36 | 9.6 | 2458852 | 2020-01-03 | 2458908 | 2020-02-28 | -56 | SVO |
| 37 | 10.0 | 2459342 | 2021-05-07 | 2459363 | 2021-05-28 | -21 | SVO |
| 38 | 9.4 | 2459777 | 2022-07-16 | 2459818 | 2022-08-26 | -41 | SVO |
| 39 | 9.1 | 2460209 | 2023-09-21 | 2460273 | 2023-11-24 | -64 | SVO |
| E | Cycle number from the GCVS4 epoch. |
| Mag | Magnitude at maximum. |
| O (JD) | Julian date at observed time for maximum. |
| O (Dat) | Same as above, expressed as date. |
| C (JD) | Julian date at calculated time for maximum with elements from GCVS4. |
| C (Dat) | Same as above, expressed as date. |
| O-C | O (JD) minus C (JD). |
| Sorce | Datasource for the maxima. |