| E | Mag | O (JD) | O (dat) | C (JD) | C (Dat) | O-C | Source |
| -57 | 2413960 | 1897-02-04 | 2414005 | 1897-03-21 | -45 | AnHar, 1909, vol 55, p 95 | |
| -55 | 2415020 | 1899-12-31 | 2415028 | 1900-01-08 | -8 | SVO | |
| -54 | 2415530 | 1901-05-25 | 2415539 | 1901-06-03 | -9 | SVO | |
| -53 | 2416040 | 1902-10-17 | 2416050 | 1902-10-27 | -10 | SVO | |
| -52 | 2416561 | 1904-03-21 | 2416561 | 1904-03-21 | 0 | SVO | |
| -50 | 2417585 | 1907-01-09 | 2417583 | 1907-01-07 | 2 | SVO | |
| -48 | 2418620 | 1909-11-09 | 2418605 | 1909-10-25 | 15 | SVO | |
| -45 | 2420160 | 1914-01-27 | 2420138 | 1914-01-05 | 22 | SVO | |
| -44 | 2420681 | 1915-07-02 | 2420650 | 1915-06-01 | 31 | SVO | |
| -43 | 2421202 | 1916-12-04 | 2421161 | 1916-10-24 | 41 | SVO | |
| -42 | 7.5 | 2421697 | 1918-04-13 | 2421672 | 1918-03-19 | 25 | SVO |
| -40 | 7.5 | 2422736 | 1921-02-15 | 2422694 | 1921-01-04 | 42 | AAVSO |
| -39 | 2423251 | 1922-07-15 | 2423205 | 1922-05-30 | 46 | AAVSO | |
| -38 | 2423750 | 1923-11-26 | 2423716 | 1923-10-23 | 34 | SVO | |
| -37 | 2424265 | 1925-04-24 | 2424227 | 1925-03-17 | 38 | AAVSO | |
| -36 | 2424791 | 1926-10-02 | 2424738 | 1926-08-10 | 53 | AAVSO | |
| -35 | 7.8 | 2425275 | 1928-01-29 | 2425249 | 1928-01-03 | 26 | SVO |
| -34 | 9.1 | 2425788 | 1929-06-25 | 2425761 | 1929-05-29 | 27 | SVO |
| -33 | 8.3 | 2426301 | 1930-11-20 | 2426272 | 1930-10-22 | 29 | AAVSO |
| -32 | 7.2 | 2426812 | 1932-04-14 | 2426783 | 1932-03-16 | 29 | AAVSO |
| -31 | 2427311 | 1933-08-26 | 2427294 | 1933-08-09 | 17 | AAVSO | |
| -30 | 8.6 | 2427817 | 1935-01-14 | 2427805 | 1935-01-02 | 12 | SVO |
| -29 | 8.1 | 2428318 | 1936-05-29 | 2428316 | 1936-05-27 | 2 | SVO |
| -28 | 8.7 | 2428839 | 1937-11-01 | 2428827 | 1937-10-20 | 12 | SVO |
| -27 | 8.4 | 2429358 | 1939-04-04 | 2429338 | 1939-03-15 | 20 | SVO |
| -26 | 2429870 | 1940-08-28 | 2429849 | 1940-08-07 | 21 | SVO | |
| -25 | 8.0 | 2430377 | 1942-01-17 | 2430360 | 1941-12-31 | 17 | SVO |
| -24 | 2430887 | 1943-06-11 | 2430872 | 1943-05-27 | 15 | AAVSO | |
| -23 | 9.2 | 2431388 | 1944-10-24 | 2431383 | 1944-10-19 | 5 | AAVSO |
| -22 | 8.4 | 2431892 | 1946-03-12 | 2431894 | 1946-03-14 | -2 | SVO |
| -21 | 8.1 | 2432398 | 1947-07-31 | 2432405 | 1947-08-07 | -7 | SVO |
| -20 | 8.4 | 2432911 | 1948-12-25 | 2432916 | 1948-12-30 | -5 | SVO |
| -19 | 8.9 | 2433423 | 1950-05-21 | 2433427 | 1950-05-25 | -4 | SVO |
| -18 | 7.8 | 2433928 | 1951-10-08 | 2433938 | 1951-10-18 | -10 | SVO |
| -17 | 8.7 | 2434432 | 1953-02-23 | 2434449 | 1953-03-12 | -17 | SVO |
| -16 | 7.7 | 2434934 | 1954-07-10 | 2434960 | 1954-08-05 | -26 | SVO |
| -15 | 9.2 | 2435438 | 1955-11-26 | 2435471 | 1955-12-29 | -33 | SVO |
| -14 | 8.7 | 2435950 | 1957-04-21 | 2435982 | 1957-05-23 | -32 | SVO |
| -13 | 8.6 | 2436452 | 1958-09-05 | 2436494 | 1958-10-17 | -42 | SVO |
| -12 | 8.3 | 2436966 | 1960-02-01 | 2437005 | 1960-03-11 | -39 | SVO |
| -11 | 8.2 | 2437480 | 1961-06-29 | 2437516 | 1961-08-04 | -36 | SVO |
| -10 | 8.6 | 2437998 | 1962-11-29 | 2438027 | 1962-12-28 | -29 | SVO |
| -9 | 8.1 | 2438512 | 1964-04-26 | 2438538 | 1964-05-22 | -26 | SVO |
| -8 | 8.3 | 2439024 | 1965-09-20 | 2439049 | 1965-10-15 | -25 | SVO |
| -7 | 8.6 | 2439539 | 1967-02-17 | 2439560 | 1967-03-10 | -21 | SVO |
| -6 | 9.3 | 2440036 | 1968-06-28 | 2440071 | 1968-08-02 | -35 | SVO |
| -5 | 9.2 | 2440555 | 1969-11-29 | 2440582 | 1969-12-26 | -27 | SVO |
| -4 | 9.1 | 2441074 | 1971-05-02 | 2441093 | 1971-05-21 | -19 | SVO |
| -3 | 2441580 | 1972-09-19 | 2441605 | 1972-10-14 | -25 | AAVSO | |
| -2 | 9.5 | 2442095 | 1974-02-16 | 2442116 | 1974-03-09 | -21 | SVO |
| -1 | 9.3 | 2442595 | 1975-07-01 | 2442627 | 1975-08-02 | -32 | AAVSO |
| 0 | 9.4 | 2443103 | 1976-11-20 | 2443138 | 1976-12-25 | -35 | SVO |
| 1 | 9.0 | 2443611 | 1978-04-12 | 2443649 | 1978-05-20 | -38 | SVO |
| 2 | 9.4 | 2444126 | 1979-09-09 | 2444160 | 1979-10-13 | -34 | AAVSO |
| 3 | 9.3 | 2444630 | 1981-01-25 | 2444671 | 1981-03-07 | -41 | SVO |
| 4 | 9.2 | 2445144 | 1982-06-23 | 2445182 | 1982-07-31 | -38 | SVO |
| 5 | 9.1 | 2445648 | 1983-11-09 | 2445693 | 1983-12-24 | -45 | SVO |
| 6 | 9.3 | 2446159 | 1985-04-03 | 2446204 | 1985-05-18 | -45 | SVO |
| 7 | 9.2 | 2446668 | 1986-08-25 | 2446716 | 1986-10-12 | -48 | AAVSO |
| 8 | 9.0 | 2447185 | 1988-01-24 | 2447227 | 1988-03-06 | -42 | SVO |
| 9 | 8.6 | 2447696 | 1989-06-18 | 2447738 | 1989-07-30 | -42 | SVO |
| 10 | 9.4 | 2448215 | 1990-11-19 | 2448249 | 1990-12-23 | -34 | SVO |
| 11 | 8.7 | 2448733 | 1992-04-20 | 2448760 | 1992-05-17 | -27 | SVO |
| 12 | 2449241 | 1993-09-10 | 2449271 | 1993-10-10 | -30 | AAVSO | |
| 13 | 8.8 | 2449763 | 1995-02-14 | 2449782 | 1995-03-05 | -19 | SVO |
| 14 | 8.5 | 2450285 | 1996-07-20 | 2450293 | 1996-07-28 | -8 | SVO |
| 15 | 8.3 | 2450785 | 1997-12-02 | 2450804 | 1997-12-21 | -19 | SVO |
| 16 | 8.6 | 2451300 | 1999-05-01 | 2451315 | 1999-05-16 | -15 | SVO |
| 17 | 2451809 | 2000-09-21 | 2451826 | 2000-10-08 | -17 | AAVSO | |
| 18 | 8.2 | 2452325 | 2002-02-19 | 2452338 | 2002-03-04 | -13 | SVO |
| 19 | 8.4 | 2452857 | 2003-08-05 | 2452849 | 2003-07-28 | 8 | SVO |
| 20 | 7.9 | 2453373 | 2005-01-02 | 2453360 | 2004-12-20 | 13 | SVO |
| 21 | 8.1 | 2453879 | 2006-05-23 | 2453871 | 2006-05-15 | 8 | SVO |
| 22 | 8.0 | 2454400 | 2007-10-26 | 2454382 | 2007-10-08 | 18 | SVO |
| 23 | 7.4 | 2454913 | 2009-03-22 | 2454893 | 2009-03-02 | 20 | SVO |
| 24 | 8.7 | 2455444 | 2010-09-04 | 2455404 | 2010-07-26 | 40 | SVO |
| 25 | 8.9 | 2455968 | 2012-02-10 | 2455915 | 2011-12-19 | 53 | SVO |
| 26 | 7.9 | 2456491 | 2013-07-17 | 2456426 | 2013-05-13 | 65 | SVO |
| 27 | 8.2 | 2456983 | 2014-11-21 | 2456937 | 2014-10-06 | 46 | SVO |
| 28 | 8.1 | 2457511 | 2016-05-02 | 2457449 | 2016-03-01 | 62 | SVO |
| 29 | 8.2 | 2458023 | 2017-09-26 | 2457960 | 2017-07-25 | 63 | SVO |
| 30 | 7.8 | 2458524 | 2019-02-09 | 2458471 | 2018-12-18 | 53 | SVO |
| 31 | 8.7 | 2459060 | 2020-07-29 | 2458982 | 2020-05-12 | 78 | SVO |
| 32 | 8.4 | 2459559 | 2021-12-10 | 2459493 | 2021-10-05 | 66 | 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. |