| E | Mag | O (JD) | O (dat) | C (JD) | C (Dat) | O-C | Source |
| -54 | 2414932 | 1899-10-04 | 2414905 | 1899-09-07 | 27 | AnHar, 1909, vol 55, p 95 | |
| -53 | 2415500 | 1901-04-25 | 2415441 | 1901-02-25 | 59 | AnHar, 1909, vol 55, p 95 | |
| -51 | 2416570 | 1904-03-30 | 2416514 | 1904-02-03 | 56 | SVO | |
| -50 | 9.7 | 2417085 | 1905-08-27 | 2417050 | 1905-07-23 | 35 | AAVSO |
| -49 | 9.2 | 2417612 | 1907-02-05 | 2417587 | 1907-01-11 | 25 | AAVSO |
| -48 | 2418190 | 1908-09-05 | 2418123 | 1908-06-30 | 67 | SVO | |
| -47 | 9.7 | 2418686 | 1910-01-14 | 2418659 | 1909-12-18 | 27 | AAVSO |
| -46 | 2419210 | 1911-06-22 | 2419196 | 1911-06-08 | 14 | SVO | |
| -45 | 9.7 | 2419752 | 1912-12-15 | 2419732 | 1912-11-25 | 20 | SVO |
| -44 | 2420280 | 1914-05-27 | 2420269 | 1914-05-16 | 11 | SVO | |
| -43 | 9.7 | 2420824 | 1915-11-22 | 2420805 | 1915-11-03 | 19 | AAVSO |
| -42 | 9.4 | 2421372 | 1917-05-23 | 2421342 | 1917-04-23 | 30 | AAVSO |
| -41 | 10.5 | 2421908 | 1918-11-10 | 2421878 | 1918-10-11 | 30 | AAVSO |
| -40 | 9.0 | 2422422 | 1920-04-07 | 2422414 | 1920-03-30 | 8 | AAVSO |
| -39 | 2422974 | 1921-10-11 | 2422951 | 1921-09-18 | 23 | AAVSO | |
| -38 | 9.4 | 2423509 | 1923-03-30 | 2423487 | 1923-03-08 | 22 | SVO |
| -37 | 9.8 | 2424037 | 1924-09-08 | 2424024 | 1924-08-26 | 13 | SVO |
| -36 | 8.7 | 2424569 | 1926-02-22 | 2424560 | 1926-02-13 | 9 | SVO |
| -35 | 9.1 | 2425103 | 1927-08-10 | 2425097 | 1927-08-04 | 6 | SVO |
| -34 | 9.4 | 2425625 | 1929-01-13 | 2425633 | 1929-01-21 | -8 | SVO |
| -33 | 9.6 | 2426160 | 1930-07-02 | 2426169 | 1930-07-11 | -9 | SVO |
| -32 | 9.9 | 2426666 | 1931-11-20 | 2426706 | 1931-12-30 | -40 | SVO |
| -31 | 8.6 | 2427207 | 1933-05-14 | 2427242 | 1933-06-18 | -35 | SVO |
| -30 | 10.1 | 2427747 | 1934-11-05 | 2427779 | 1934-12-07 | -32 | SVO |
| -29 | 8.7 | 2428275 | 1936-04-16 | 2428315 | 1936-05-26 | -40 | SVO |
| -28 | 9.5 | 2428826 | 1937-10-19 | 2428851 | 1937-11-13 | -25 | SVO |
| -27 | 9.3 | 2429360 | 1939-04-06 | 2429388 | 1939-05-04 | -28 | SVO |
| -26 | 10.0 | 2429876 | 1940-09-03 | 2429924 | 1940-10-21 | -48 | SVO |
| -25 | 9.0 | 2430416 | 1942-02-25 | 2430461 | 1942-04-11 | -45 | SVO |
| -24 | 9.0 | 2430954 | 1943-08-17 | 2430997 | 1943-09-29 | -43 | AAVSO |
| -23 | 8.1 | 2431494 | 1945-02-07 | 2431534 | 1945-03-19 | -40 | AAVSO |
| -22 | 9.1 | 2432019 | 1946-07-17 | 2432070 | 1946-09-06 | -51 | AAVSO |
| -21 | 9.5 | 2432567 | 1948-01-16 | 2432606 | 1948-02-24 | -39 | SVO |
| -20 | 10.8 | 2433111 | 1949-07-13 | 2433143 | 1949-08-14 | -32 | SVO |
| -19 | 9.5 | 2433644 | 1950-12-28 | 2433679 | 1951-02-01 | -35 | AAVSO |
| -18 | 9.3 | 2434178 | 1952-06-14 | 2434216 | 1952-07-22 | -38 | AAVSO |
| -17 | 9.7 | 2434713 | 1953-12-01 | 2434752 | 1954-01-09 | -39 | AAVSO |
| -16 | 10.0 | 2435253 | 1955-05-25 | 2435288 | 1955-06-29 | -35 | AAVSO |
| -15 | 8.9 | 2435805 | 1956-11-27 | 2435825 | 1956-12-17 | -20 | SVO |
| -14 | 10.3 | 2436341 | 1958-05-17 | 2436361 | 1958-06-06 | -20 | SVO |
| -13 | 9.6 | 2436886 | 1959-11-13 | 2436898 | 1959-11-25 | -12 | SVO |
| -12 | 10.2 | 2437416 | 1961-04-26 | 2437434 | 1961-05-14 | -18 | AAVSO |
| -11 | 9.6 | 2437966 | 1962-10-28 | 2437971 | 1962-11-02 | -5 | SVO |
| -10 | 9.5 | 2438509 | 1964-04-23 | 2438507 | 1964-04-21 | 2 | SVO |
| -9 | 9.1 | 2439053 | 1965-10-19 | 2439043 | 1965-10-09 | 10 | SVO |
| -8 | 10.2 | 2439583 | 1967-04-02 | 2439580 | 1967-03-30 | 3 | SVO |
| -7 | 9.7 | 2440113 | 1968-09-13 | 2440116 | 1968-09-16 | -3 | SVO |
| -6 | 10.0 | 2440650 | 1970-03-04 | 2440653 | 1970-03-07 | -3 | SVO |
| -5 | 9.1 | 2441177 | 1971-08-13 | 2441189 | 1971-08-25 | -12 | SVO |
| -4 | 10.2 | 2441729 | 1973-02-15 | 2441726 | 1973-02-12 | 3 | SVO |
| -3 | 9.1 | 2442246 | 1974-07-17 | 2442262 | 1974-08-02 | -16 | SVO |
| -2 | 10.0 | 2442793 | 1976-01-15 | 2442798 | 1976-01-20 | -5 | SVO |
| -1 | 9.2 | 2443313 | 1977-06-18 | 2443335 | 1977-07-10 | -22 | SVO |
| 0 | 10.2 | 2443845 | 1978-12-02 | 2443871 | 1978-12-28 | -26 | SVO |
| 1 | 10.1 | 2444394 | 1980-06-03 | 2444408 | 1980-06-17 | -14 | SVO |
| 2 | 9.0 | 2444914 | 1981-11-05 | 2444944 | 1981-12-05 | -30 | SVO |
| 3 | 9.0 | 2445456 | 1983-05-01 | 2445480 | 1983-05-25 | -24 | SVO |
| 4 | 10.7 | 2445991 | 1984-10-17 | 2446017 | 1984-11-12 | -26 | SVO |
| 5 | 9.9 | 2446551 | 1986-04-30 | 2446553 | 1986-05-02 | -2 | SVO |
| 6 | 9.6 | 2447081 | 1987-10-12 | 2447090 | 1987-10-21 | -9 | SVO |
| 7 | 8.8 | 2447621 | 1989-04-04 | 2447626 | 1989-04-09 | -5 | SVO |
| 8 | 9.8 | 2448163 | 1990-09-28 | 2448163 | 1990-09-28 | 0 | SVO |
| 9 | 9.5 | 2448713 | 1992-03-31 | 2448699 | 1992-03-17 | 14 | SVO |
| 10 | 9.4 | 2449246 | 1993-09-15 | 2449235 | 1993-09-04 | 11 | SVO |
| 11 | 9.1 | 2449787 | 1995-03-10 | 2449772 | 1995-02-23 | 15 | SVO |
| 12 | 9.5 | 2450333 | 1996-09-06 | 2450308 | 1996-08-12 | 25 | SVO |
| 13 | 9.4 | 2450870 | 1998-02-25 | 2450845 | 1998-01-31 | 25 | SVO |
| 14 | 9.3 | 2451407 | 1999-08-16 | 2451381 | 1999-07-21 | 26 | SVO |
| 15 | 9.4 | 2451954 | 2001-02-13 | 2451917 | 2001-01-07 | 37 | SVO |
| 16 | 8.9 | 2452486 | 2002-07-30 | 2452454 | 2002-06-28 | 32 | SVO |
| 17 | 9.8 | 2453023 | 2004-01-18 | 2452990 | 2003-12-16 | 33 | SVO |
| 18 | 8.4 | 2453555 | 2005-07-03 | 2453527 | 2005-06-05 | 28 | SVO |
| 19 | 10.3 | 2454106 | 2007-01-05 | 2454063 | 2006-11-23 | 43 | SVO |
| 20 | 10.1 | 2454644 | 2008-06-26 | 2454600 | 2008-05-13 | 44 | SVO |
| 21 | 9.4 | 2455176 | 2009-12-10 | 2455136 | 2009-10-31 | 40 | SVO |
| 22 | 10.7 | 2455710 | 2011-05-28 | 2455672 | 2011-04-20 | 38 | SVO |
| 23 | 9.2 | 2456231 | 2012-10-30 | 2456209 | 2012-10-08 | 22 | SVO |
| 24 | 10.1 | 2456772 | 2014-04-24 | 2456745 | 2014-03-28 | 27 | SVO |
| 25 | 8.6 | 2457289 | 2015-09-23 | 2457282 | 2015-09-16 | 7 | SVO |
| 26 | 11.2 | 2457825 | 2017-03-12 | 2457818 | 2017-03-05 | 7 | SVO |
| 27 | 9.5 | 2458347 | 2018-08-16 | 2458355 | 2018-08-24 | -8 | SVO |
| 28 | 10.1 | 2458886 | 2020-02-06 | 2458891 | 2020-02-11 | -5 | SVO |
| 29 | 9.1 | 2459409 | 2021-07-13 | 2459427 | 2021-07-31 | -18 | SVO |
| 30 | 9.5 | 2459935 | 2022-12-21 | 2459964 | 2023-01-19 | -29 | 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. |