| E | Mag | O (JD) | O (dat) | C (JD) | C (Dat) | O-C | Source |
| -56 | 2414610 | 1898-11-16 | 2414594 | 1898-10-31 | 16 | AnHar, 1937, vol 105, p 459 | |
| -55 | 9.6 | 2415128 | 1900-04-18 | 2415091 | 1900-03-12 | 37 | SVO |
| -54 | 2415615 | 1901-08-18 | 2415588 | 1901-07-22 | 27 | GuL, 1920, 1.2 | |
| -53 | 2416125 | 1903-01-10 | 2416085 | 1902-12-01 | 40 | GuL, 1920, 1.2 | |
| -52 | 2416582 | 1904-04-11 | 2416582 | 1904-04-11 | 0 | GuL, 1920, 1.2 | |
| -51 | 9.5 | 2417130 | 1905-10-11 | 2417078 | 1905-08-20 | 52 | SVO |
| -50 | 8.6 | 2417644 | 1907-03-09 | 2417575 | 1906-12-30 | 69 | AAVSO |
| -49 | 2418121 | 1908-06-28 | 2418072 | 1908-05-10 | 49 | AAVSO | |
| -48 | 9.3 | 2418600 | 1909-10-20 | 2418569 | 1909-09-19 | 31 | AAVSO |
| -47 | 10.0 | 2419100 | 1911-03-04 | 2419066 | 1911-01-29 | 34 | AAVSO |
| -46 | 10.0 | 2419593 | 1912-07-09 | 2419562 | 1912-06-08 | 31 | SVO |
| -45 | 9.8 | 2420097 | 1913-11-25 | 2420059 | 1913-10-18 | 38 | SVO |
| -43 | 9.6 | 2421050 | 1916-07-05 | 2421053 | 1916-07-08 | -3 | AAVSO |
| -42 | 9.4 | 2421552 | 1917-11-19 | 2421550 | 1917-11-17 | 2 | AAVSO |
| -41 | 9.5 | 2422028 | 1919-03-10 | 2422047 | 1919-03-29 | -19 | AAVSO |
| -40 | 9.5 | 2422512 | 1920-07-06 | 2422543 | 1920-08-06 | -31 | AAVSO |
| -39 | 10.4 | 2423029 | 1921-12-05 | 2423040 | 1921-12-16 | -11 | SVO |
| -38 | 9.8 | 2423518 | 1923-04-08 | 2423537 | 1923-04-27 | -19 | SVO |
| -37 | 9.7 | 2423998 | 1924-07-31 | 2424034 | 1924-09-05 | -36 | SVO |
| -36 | 10.5 | 2424497 | 1925-12-12 | 2424531 | 1926-01-15 | -34 | SVO |
| -35 | 2424975 | 1927-04-04 | 2425027 | 1927-05-26 | -52 | AAVSO | |
| -34 | 9.8 | 2425491 | 1928-09-01 | 2425524 | 1928-10-04 | -33 | AAVSO |
| -33 | 10.2 | 2425971 | 1929-12-25 | 2426021 | 1930-02-13 | -50 | SVO |
| -32 | 10.6 | 2426480 | 1931-05-18 | 2426518 | 1931-06-25 | -38 | SVO |
| -31 | 9.8 | 2426972 | 1932-09-21 | 2427015 | 1932-11-03 | -43 | SVO |
| -30 | 10.5 | 2427467 | 1934-01-29 | 2427512 | 1934-03-15 | -45 | SVO |
| -29 | 9.9 | 2427968 | 1935-06-14 | 2428008 | 1935-07-24 | -40 | AAVSO |
| -28 | 10.4 | 2428469 | 1936-10-27 | 2428505 | 1936-12-02 | -36 | SVO |
| -27 | 9.9 | 2428969 | 1938-03-11 | 2429002 | 1938-04-13 | -33 | SVO |
| -26 | 10.8 | 2429477 | 1939-08-01 | 2429499 | 1939-08-23 | -22 | AAVSO |
| -25 | 10.7 | 2429975 | 1940-12-11 | 2429996 | 1941-01-01 | -21 | SVO |
| -24 | 10.3 | 2430494 | 1942-05-14 | 2430492 | 1942-05-12 | 2 | SVO |
| -23 | 10.1 | 2430982 | 1943-09-14 | 2430989 | 1943-09-21 | -7 | SVO |
| -22 | 10.9 | 2431494 | 1945-02-07 | 2431486 | 1945-01-30 | 8 | AAVSO |
| -21 | 9.6 | 2431996 | 1946-06-24 | 2431983 | 1946-06-11 | 13 | AAVSO |
| -20 | 10.5 | 2432482 | 1947-10-23 | 2432480 | 1947-10-21 | 2 | SVO |
| -19 | 9.5 | 2432983 | 1949-03-07 | 2432977 | 1949-03-01 | 6 | AAVSO |
| -18 | 10.0 | 2433482 | 1950-07-19 | 2433473 | 1950-07-10 | 9 | AAVSO |
| -17 | 10.3 | 2433978 | 1951-11-27 | 2433970 | 1951-11-19 | 8 | SVO |
| -16 | 10.4 | 2434474 | 1953-04-06 | 2434467 | 1953-03-30 | 7 | SVO |
| -15 | 10.1 | 2434983 | 1954-08-28 | 2434964 | 1954-08-09 | 19 | SVO |
| -14 | 10.6 | 2435475 | 1956-01-02 | 2435461 | 1955-12-19 | 14 | SVO |
| -13 | 9.6 | 2435973 | 1957-05-14 | 2435957 | 1957-04-28 | 16 | AAVSO |
| -12 | 9.8 | 2436466 | 1958-09-19 | 2436454 | 1958-09-07 | 12 | SVO |
| -11 | 10.3 | 2436969 | 1960-02-04 | 2436951 | 1960-01-17 | 18 | SVO |
| -10 | 9.6 | 2437452 | 1961-06-01 | 2437448 | 1961-05-28 | 4 | SVO |
| -9 | 10.9 | 2437955 | 1962-10-17 | 2437945 | 1962-10-07 | 10 | SVO |
| -8 | 10.5 | 2438465 | 1964-03-10 | 2438442 | 1964-02-16 | 23 | SVO |
| -7 | 10.3 | 2438921 | 1965-06-09 | 2438938 | 1965-06-26 | -17 | SVO |
| -6 | 10.6 | 2439438 | 1966-11-08 | 2439435 | 1966-11-05 | 3 | SVO |
| -5 | 10.7 | 2439938 | 1968-03-22 | 2439932 | 1968-03-16 | 6 | SVO |
| -4 | 11.1 | 2440433 | 1969-07-30 | 2440429 | 1969-07-26 | 4 | AAVSO |
| -3 | 11.1 | 2440914 | 1970-11-23 | 2440926 | 1970-12-05 | -12 | SVO |
| -2 | 10.6 | 2441422 | 1972-04-14 | 2441423 | 1972-04-15 | -1 | SVO |
| -1 | 11.0 | 2441907 | 1973-08-12 | 2441919 | 1973-08-24 | -12 | AAVSO |
| 0 | 11.2 | 2442382 | 1974-11-30 | 2442416 | 1975-01-03 | -34 | SVO |
| 1 | 10.7 | 2442885 | 1976-04-16 | 2442913 | 1976-05-14 | -28 | SVO |
| 2 | 10.1 | 2443367 | 1977-08-11 | 2443410 | 1977-09-23 | -43 | SVO |
| 3 | 10.7 | 2443855 | 1978-12-12 | 2443907 | 1979-02-02 | -52 | SVO |
| 4 | 10.2 | 2444343 | 1980-04-13 | 2444403 | 1980-06-12 | -60 | SVO |
| 5 | 10.9 | 2444847 | 1981-08-30 | 2444900 | 1981-10-22 | -53 | SVO |
| 6 | 10.5 | 2445361 | 1983-01-26 | 2445397 | 1983-03-03 | -36 | SVO |
| 7 | 9.7 | 2445842 | 1984-05-21 | 2445894 | 1984-07-12 | -52 | SVO |
| 8 | 10.6 | 2446351 | 1985-10-12 | 2446391 | 1985-11-21 | -40 | SVO |
| 9 | 10.0 | 2446874 | 1987-03-19 | 2446888 | 1987-04-02 | -14 | SVO |
| 10 | 10.2 | 2447368 | 1988-07-25 | 2447384 | 1988-08-10 | -16 | SVO |
| 11 | 10.6 | 2447890 | 1989-12-29 | 2447881 | 1989-12-20 | 9 | SVO |
| 12 | 10.1 | 2448389 | 1991-05-12 | 2448378 | 1991-05-01 | 11 | SVO |
| 13 | 10.3 | 2448895 | 1992-09-29 | 2448875 | 1992-09-09 | 20 | SVO |
| 14 | 9.5 | 2449399 | 1994-02-15 | 2449372 | 1994-01-19 | 27 | SVO |
| 15 | 10.3 | 2449901 | 1995-07-02 | 2449868 | 1995-05-30 | 33 | SVO |
| 16 | 10.2 | 2450413 | 1996-11-25 | 2450365 | 1996-10-08 | 48 | SVO |
| 17 | 10.0 | 2450915 | 1998-04-11 | 2450862 | 1998-02-17 | 53 | SVO |
| 18 | 9.8 | 2451412 | 1999-08-21 | 2451359 | 1999-06-29 | 53 | SVO |
| 19 | 9.6 | 2451904 | 2000-12-25 | 2451856 | 2000-11-07 | 48 | SVO |
| 20 | 10.3 | 2452399 | 2002-05-04 | 2452353 | 2002-03-19 | 46 | SVO |
| 21 | 9.8 | 2452891 | 2003-09-08 | 2452849 | 2003-07-28 | 42 | SVO |
| 22 | 10.6 | 2453386 | 2005-01-15 | 2453346 | 2004-12-06 | 40 | SVO |
| 23 | 9.5 | 2453874 | 2006-05-18 | 2453843 | 2006-04-17 | 31 | SVO |
| 24 | 11.2 | 2454362 | 2007-09-18 | 2454340 | 2007-08-27 | 22 | SVO |
| 25 | 10.4 | 2454848 | 2009-01-16 | 2454837 | 2009-01-05 | 11 | SVO |
| 26 | 10.1 | 2455339 | 2010-05-22 | 2455333 | 2010-05-16 | 6 | SVO |
| 27 | 10.2 | 2455841 | 2011-10-06 | 2455830 | 2011-09-25 | 11 | SVO |
| 28 | 10.5 | 2456332 | 2013-02-08 | 2456327 | 2013-02-03 | 5 | SVO |
| 29 | 10.1 | 2456820 | 2014-06-11 | 2456824 | 2014-06-15 | -4 | SVO |
| 30 | 10.1 | 2457317 | 2015-10-21 | 2457321 | 2015-10-25 | -4 | SVO |
| 31 | 10.1 | 2457811 | 2017-02-26 | 2457818 | 2017-03-05 | -7 | SVO |
| 32 | 9.8 | 2458301 | 2018-07-01 | 2458314 | 2018-07-14 | -13 | SVO |
| 33 | 9.3 | 2458797 | 2019-11-09 | 2458811 | 2019-11-23 | -14 | SVO |
| 34 | 10.7 | 2459285 | 2021-03-11 | 2459308 | 2021-04-03 | -23 | SVO |
| 35 | 10.1 | 2459786 | 2022-07-25 | 2459805 | 2022-08-13 | -19 | 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. |