| E | Mag | O (JD) | O (dat) | C (JD) | C (Dat) | O-C | Source |
| -78 | 2412040 | 1891-11-03 | 2412020 | 1891-10-14 | 20 | SVO | |
| -71 | 2414887 | 1899-08-20 | 2414898 | 1899-08-31 | -11 | AnHar, 1909, vol 55, p 95 | |
| -70 | 8.6 | 2415293 | 1900-09-30 | 2415309 | 1900-10-16 | -16 | SVO |
| -69 | 2415700 | 1901-11-11 | 2415720 | 1901-12-01 | -20 | SVO | |
| -68 | 2416120 | 1903-01-05 | 2416131 | 1903-01-16 | -11 | AnHar, 1909, vol 55, p 95 | |
| -67 | 2416529 | 1904-02-18 | 2416542 | 1904-03-02 | -13 | AnHar, 1909, vol 55, p 95 | |
| -66 | 8.8 | 2416946 | 1905-04-10 | 2416953 | 1905-04-17 | -7 | AAVSO |
| -65 | 2417354 | 1906-05-23 | 2417364 | 1906-06-02 | -10 | AAVSO | |
| -64 | 2417769 | 1907-07-12 | 2417775 | 1907-07-18 | -6 | AAVSO | |
| -63 | 2418180 | 1908-08-26 | 2418186 | 1908-09-01 | -6 | SVO | |
| -62 | 2418580 | 1909-09-30 | 2418597 | 1909-10-17 | -17 | SVO | |
| -61 | 2418985 | 1910-11-09 | 2419008 | 1910-12-02 | -23 | SVO | |
| -60 | 9.5 | 2419406 | 1912-01-04 | 2419419 | 1912-01-17 | -13 | SVO |
| -59 | 8.1 | 2419812 | 1913-02-13 | 2419830 | 1913-03-03 | -18 | AAVSO |
| -57 | 2420663 | 1915-06-14 | 2420652 | 1915-06-03 | 11 | AAVSO | |
| -56 | 10.0 | 2421064 | 1916-07-19 | 2421063 | 1916-07-18 | 1 | SVO |
| -55 | 8.8 | 2421469 | 1917-08-28 | 2421474 | 1917-09-02 | -5 | AAVSO |
| -54 | 8.6 | 2421886 | 1918-10-19 | 2421885 | 1918-10-18 | 1 | SVO |
| -53 | 8.3 | 2422295 | 1919-12-02 | 2422296 | 1919-12-03 | -1 | SVO |
| -52 | 9.2 | 2422719 | 1921-01-29 | 2422707 | 1921-01-17 | 12 | SVO |
| -51 | 9.5 | 2423139 | 1922-03-25 | 2423118 | 1922-03-04 | 21 | SVO |
| -50 | 9.0 | 2423550 | 1923-05-10 | 2423529 | 1923-04-19 | 21 | SVO |
| -49 | 8.8 | 2423963 | 1924-06-26 | 2423940 | 1924-06-03 | 23 | SVO |
| -48 | 9.2 | 2424372 | 1925-08-09 | 2424351 | 1925-07-19 | 21 | SVO |
| -47 | 9.1 | 2424772 | 1926-09-13 | 2424762 | 1926-09-03 | 10 | SVO |
| -46 | 8.5 | 2425195 | 1927-11-10 | 2425173 | 1927-10-19 | 22 | SVO |
| -45 | 9.2 | 2425602 | 1928-12-21 | 2425584 | 1928-12-03 | 18 | SVO |
| -44 | 9.1 | 2426011 | 1930-02-03 | 2425995 | 1930-01-18 | 16 | SVO |
| -43 | 9.4 | 2426420 | 1931-03-19 | 2426406 | 1931-03-05 | 14 | SVO |
| -42 | 9.4 | 2426829 | 1932-05-01 | 2426817 | 1932-04-19 | 12 | SVO |
| -41 | 8.3 | 2427229 | 1933-06-05 | 2427228 | 1933-06-04 | 1 | SVO |
| -40 | 9.8 | 2427638 | 1934-07-19 | 2427639 | 1934-07-20 | -1 | SVO |
| -39 | 9.6 | 2428050 | 1935-09-04 | 2428050 | 1935-09-04 | 0 | SVO |
| -38 | 9.4 | 2428455 | 1936-10-13 | 2428461 | 1936-10-19 | -6 | SVO |
| -37 | 8.9 | 2428869 | 1937-12-01 | 2428872 | 1937-12-04 | -3 | SVO |
| -36 | 8.7 | 2429276 | 1939-01-12 | 2429283 | 1939-01-19 | -7 | SVO |
| -35 | 9.7 | 2429689 | 1940-02-29 | 2429694 | 1940-03-05 | -5 | AAVSO |
| -34 | 9.9 | 2430110 | 1941-04-25 | 2430105 | 1941-04-20 | 5 | AAVSO |
| -33 | 9.5 | 2430509 | 1942-05-29 | 2430516 | 1942-06-05 | -7 | AAVSO |
| -32 | 8.4 | 2430927 | 1943-07-21 | 2430927 | 1943-07-21 | 0 | SVO |
| -31 | 8.9 | 2431339 | 1944-09-05 | 2431338 | 1944-09-04 | 1 | SVO |
| -30 | 9.3 | 2431756 | 1945-10-27 | 2431749 | 1945-10-20 | 7 | SVO |
| -29 | 9.3 | 2432161 | 1946-12-06 | 2432160 | 1946-12-05 | 1 | SVO |
| -28 | 8.7 | 2432586 | 1948-02-04 | 2432571 | 1948-01-20 | 15 | SVO |
| -27 | 9.2 | 2432993 | 1949-03-17 | 2432982 | 1949-03-06 | 11 | AAVSO |
| -26 | 9.4 | 2433400 | 1950-04-28 | 2433393 | 1950-04-21 | 7 | AAVSO |
| -25 | 8.8 | 2433828 | 1951-06-30 | 2433805 | 1951-06-07 | 23 | SVO |
| -24 | 9.7 | 2434242 | 1952-08-17 | 2434216 | 1952-07-22 | 26 | SVO |
| -23 | 9.0 | 2434653 | 1953-10-02 | 2434627 | 1953-09-06 | 26 | SVO |
| -22 | 9.2 | 2435055 | 1954-11-08 | 2435038 | 1954-10-22 | 17 | SVO |
| -21 | 9.5 | 2435478 | 1956-01-05 | 2435449 | 1955-12-07 | 29 | SVO |
| -20 | 8.6 | 2435863 | 1957-01-24 | 2435860 | 1957-01-21 | 3 | SVO |
| -19 | 9.6 | 2436269 | 1958-03-06 | 2436271 | 1958-03-08 | -2 | AAVSO |
| -18 | 8.6 | 2436683 | 1959-04-24 | 2436682 | 1959-04-23 | 1 | AAVSO |
| -17 | 8.8 | 2437098 | 1960-06-12 | 2437093 | 1960-06-07 | 5 | SVO |
| -16 | 9.6 | 2437497 | 1961-07-16 | 2437504 | 1961-07-23 | -7 | SVO |
| -15 | 8.7 | 2437906 | 1962-08-29 | 2437915 | 1962-09-07 | -9 | SVO |
| -14 | 9.2 | 2438312 | 1963-10-09 | 2438326 | 1963-10-23 | -14 | SVO |
| -13 | 9.2 | 2438728 | 1964-11-28 | 2438737 | 1964-12-07 | -9 | SVO |
| -12 | 9.1 | 2439136 | 1966-01-10 | 2439148 | 1966-01-22 | -12 | SVO |
| -11 | 8.7 | 2439540 | 1967-02-18 | 2439559 | 1967-03-09 | -19 | SVO |
| -10 | 9.3 | 2439957 | 1968-04-10 | 2439970 | 1968-04-23 | -13 | SVO |
| -9 | 9.1 | 2440374 | 1969-06-01 | 2440381 | 1969-06-08 | -7 | SVO |
| -8 | 9.1 | 2440790 | 1970-07-22 | 2440792 | 1970-07-24 | -2 | SVO |
| -7 | 8.5 | 2441208 | 1971-09-13 | 2441203 | 1971-09-08 | 5 | SVO |
| -6 | 10.4 | 2441616 | 1972-10-25 | 2441614 | 1972-10-23 | 2 | SVO |
| -5 | 9.1 | 2442034 | 1973-12-17 | 2442025 | 1973-12-08 | 9 | SVO |
| -4 | 9.7 | 2442449 | 1975-02-05 | 2442436 | 1975-01-23 | 13 | SVO |
| -3 | 9.4 | 2442865 | 1976-03-27 | 2442847 | 1976-03-09 | 18 | SVO |
| -2 | 9.2 | 2443277 | 1977-05-13 | 2443258 | 1977-04-24 | 19 | SVO |
| -1 | 8.6 | 2443675 | 1978-06-15 | 2443669 | 1978-06-09 | 6 | SVO |
| 0 | 9.4 | 2444090 | 1979-08-04 | 2444080 | 1979-07-25 | 10 | SVO |
| 1 | 8.5 | 2444494 | 1980-09-11 | 2444491 | 1980-09-08 | 3 | SVO |
| 2 | 10.0 | 2444907 | 1981-10-29 | 2444902 | 1981-10-24 | 5 | SVO |
| 3 | 9.0 | 2445316 | 1982-12-12 | 2445313 | 1982-12-09 | 3 | SVO |
| 4 | 9.6 | 2445727 | 1984-01-27 | 2445724 | 1984-01-24 | 3 | SVO |
| 5 | 9.1 | 2446166 | 1985-04-10 | 2446135 | 1985-03-10 | 31 | SVO |
| 6 | 9.6 | 2446560 | 1986-05-09 | 2446546 | 1986-04-25 | 14 | SVO |
| 7 | 9.0 | 2446965 | 1987-06-18 | 2446957 | 1987-06-10 | 8 | SVO |
| 8 | 10.1 | 2447381 | 1988-08-07 | 2447368 | 1988-07-25 | 13 | SVO |
| 9 | 8.7 | 2447778 | 1989-09-08 | 2447779 | 1989-09-09 | -1 | SVO |
| 10 | 9.2 | 2448193 | 1990-10-28 | 2448190 | 1990-10-25 | 3 | SVO |
| 11 | 8.4 | 2448604 | 1991-12-13 | 2448601 | 1991-12-10 | 3 | SVO |
| 12 | 9.3 | 2449022 | 1993-02-03 | 2449012 | 1993-01-24 | 10 | SVO |
| 13 | 9.6 | 2449448 | 1994-04-05 | 2449423 | 1994-03-11 | 25 | SVO |
| 14 | 9.0 | 2449856 | 1995-05-18 | 2449834 | 1995-04-26 | 22 | SVO |
| 15 | 8.7 | 2450267 | 1996-07-02 | 2450245 | 1996-06-10 | 22 | SVO |
| 16 | 9.5 | 2450690 | 1997-08-29 | 2450656 | 1997-07-26 | 34 | SVO |
| 17 | 8.6 | 2451098 | 1998-10-11 | 2451067 | 1998-09-10 | 31 | SVO |
| 18 | 10.0 | 2451501 | 1999-11-18 | 2451478 | 1999-10-26 | 23 | SVO |
| 19 | 9.1 | 2451921 | 2001-01-11 | 2451889 | 2000-12-10 | 32 | SVO |
| 20 | 9.2 | 2452322 | 2002-02-16 | 2452300 | 2002-01-25 | 22 | SVO |
| 21 | 8.9 | 2452730 | 2003-03-31 | 2452711 | 2003-03-12 | 19 | SVO |
| 22 | 10.0 | 2453148 | 2004-05-22 | 2453122 | 2004-04-26 | 26 | SVO |
| 23 | 9.2 | 2453559 | 2005-07-07 | 2453533 | 2005-06-11 | 26 | SVO |
| 24 | 9.5 | 2453969 | 2006-08-21 | 2453944 | 2006-07-27 | 25 | SVO |
| 25 | 9.2 | 2454382 | 2007-10-08 | 2454356 | 2007-09-12 | 26 | SVO |
| 26 | 9.3 | 2454790 | 2008-11-19 | 2454767 | 2008-10-27 | 23 | SVO |
| 27 | 8.8 | 2455198 | 2010-01-01 | 2455178 | 2009-12-12 | 20 | SVO |
| 28 | 9.0 | 2455605 | 2011-02-12 | 2455589 | 2011-01-27 | 16 | SVO |
| 29 | 9.2 | 2456023 | 2012-04-05 | 2456000 | 2012-03-13 | 23 | SVO |
| 30 | 9.4 | 2456434 | 2013-05-21 | 2456411 | 2013-04-28 | 23 | SVO |
| 31 | 8.8 | 2456835 | 2014-06-26 | 2456822 | 2014-06-13 | 13 | SVO |
| 32 | 9.6 | 2457248 | 2015-08-13 | 2457233 | 2015-07-29 | 15 | SVO |
| 33 | 8.9 | 2457656 | 2016-09-24 | 2457644 | 2016-09-12 | 12 | SVO |
| 34 | 9.1 | 2458065 | 2017-11-07 | 2458055 | 2017-10-28 | 10 | SVO |
| 35 | 9.6 | 2458485 | 2019-01-01 | 2458466 | 2018-12-13 | 19 | SVO |
| 36 | 8.6 | 2458878 | 2020-01-29 | 2458877 | 2020-01-28 | 1 | SVO |
| 37 | 10.2 | 2459293 | 2021-03-19 | 2459288 | 2021-03-14 | 5 | SVO |
| 38 | 9.7 | 2459706 | 2022-05-06 | 2459699 | 2022-04-29 | 7 | 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. |