| E | Mag | O (JD) | O (dat) | C (JD) | C (Dat) | O-C | Source |
| -71 | 2412920 | 1894-04-01 | 2412895 | 1894-03-07 | 25 | SVO | |
| -70 | 2413290 | 1895-04-06 | 2413263 | 1895-03-10 | 27 | SVO | |
| -69 | 2413660 | 1896-04-10 | 2413630 | 1896-03-11 | 30 | SVO | |
| -68 | 2414020 | 1897-04-05 | 2413998 | 1897-03-14 | 22 | SVO | |
| -66 | 2414780 | 1899-05-05 | 2414733 | 1899-03-19 | 47 | AnHar, 1909, vol 55, p 95 | |
| -65 | 2415140 | 1900-04-30 | 2415100 | 1900-03-21 | 40 | AnHar, 1909, vol 55, p 95 | |
| -64 | 2415520 | 1901-05-15 | 2415467 | 1901-03-23 | 53 | AnHar, 1909, vol 55, p 95 | |
| -63 | 2415885 | 1902-05-15 | 2415835 | 1902-03-26 | 50 | SVO | |
| -62 | 2416250 | 1903-05-15 | 2416202 | 1903-03-28 | 48 | SVO | |
| -61 | 2416625 | 1904-05-24 | 2416570 | 1904-03-30 | 55 | SVO | |
| -60 | 2416980 | 1905-05-14 | 2416937 | 1905-04-01 | 43 | SVO | |
| -57 | 2418080 | 1908-05-18 | 2418040 | 1908-04-08 | 40 | SVO | |
| -53 | 11.7 | 2419538 | 1912-05-15 | 2419509 | 1912-04-16 | 29 | SVO |
| -51 | 2420260 | 1914-05-07 | 2420244 | 1914-04-21 | 16 | SVO | |
| -49 | 2421010 | 1916-05-26 | 2420979 | 1916-04-25 | 31 | SVO | |
| -47 | 2421720 | 1918-05-06 | 2421714 | 1918-04-30 | 6 | SVO | |
| -46 | 11.4 | 2422080 | 1919-05-01 | 2422082 | 1919-05-03 | -2 | SVO |
| -45 | 2422430 | 1920-04-15 | 2422449 | 1920-05-04 | -19 | SVO | |
| -44 | 11.2 | 2422798 | 1921-04-18 | 2422817 | 1921-05-07 | -19 | AAVSO |
| -43 | 2423157 | 1922-04-12 | 2423184 | 1922-05-09 | -27 | AAVSO | |
| -42 | 11.4 | 2423521 | 1923-04-11 | 2423551 | 1923-05-11 | -30 | SVO |
| -41 | 10.2 | 2423887 | 1924-04-11 | 2423919 | 1924-05-13 | -32 | AAVSO |
| -40 | 11.1 | 2424246 | 1925-04-05 | 2424286 | 1925-05-15 | -40 | SVO |
| -39 | 10.8 | 2424613 | 1926-04-07 | 2424654 | 1926-05-18 | -41 | AAVSO |
| -38 | 11.2 | 2424983 | 1927-04-12 | 2425021 | 1927-05-20 | -38 | AAVSO |
| -37 | 10.9 | 2425351 | 1928-04-14 | 2425389 | 1928-05-22 | -38 | SVO |
| -36 | 11.4 | 2425710 | 1929-04-08 | 2425756 | 1929-05-24 | -46 | SVO |
| -35 | 11.3 | 2426080 | 1930-04-13 | 2426124 | 1930-05-27 | -44 | SVO |
| -34 | 11.4 | 2426459 | 1931-04-27 | 2426491 | 1931-05-29 | -32 | SVO |
| -33 | 10.6 | 2426813 | 1932-04-15 | 2426859 | 1932-05-31 | -46 | SVO |
| -32 | 11.8 | 2427200 | 1933-05-07 | 2427226 | 1933-06-02 | -26 | AAVSO |
| -31 | 11.9 | 2427573 | 1934-05-15 | 2427593 | 1934-06-04 | -20 | SVO |
| -30 | 10.9 | 2427941 | 1935-05-18 | 2427961 | 1935-06-07 | -20 | SVO |
| -29 | 13.0 | 2428323 | 1936-06-03 | 2428328 | 1936-06-08 | -5 | AAVSO |
| -28 | 11.8 | 2428675 | 1937-05-21 | 2428696 | 1937-06-11 | -21 | AAVSO |
| -27 | 10.8 | 2429050 | 1938-05-31 | 2429063 | 1938-06-13 | -13 | SVO |
| -26 | 11.8 | 2429422 | 1939-06-07 | 2429431 | 1939-06-16 | -9 | AAVSO |
| -25 | 11.8 | 2429795 | 1940-06-14 | 2429798 | 1940-06-17 | -3 | AAVSO |
| -24 | 10.3 | 2430161 | 1941-06-15 | 2430166 | 1941-06-20 | -5 | SVO |
| -23 | 2430533 | 1942-06-22 | 2430533 | 1942-06-22 | 0 | AAVSO | |
| -22 | 11.5 | 2430901 | 1943-06-25 | 2430901 | 1943-06-25 | 0 | AAVSO |
| -21 | 11.3 | 2431270 | 1944-06-28 | 2431268 | 1944-06-26 | 2 | SVO |
| -20 | 12.6 | 2431655 | 1945-07-18 | 2431635 | 1945-06-28 | 20 | AAVSO |
| -19 | 11.5 | 2432011 | 1946-07-09 | 2432003 | 1946-07-01 | 8 | SVO |
| -18 | 11.0 | 2432377 | 1947-07-10 | 2432370 | 1947-07-03 | 7 | SVO |
| -17 | 11.6 | 2432764 | 1948-07-31 | 2432738 | 1948-07-05 | 26 | SVO |
| -16 | 11.5 | 2433128 | 1949-07-30 | 2433105 | 1949-07-07 | 23 | SVO |
| -15 | 11.5 | 2433495 | 1950-08-01 | 2433473 | 1950-07-10 | 22 | SVO |
| -14 | 11.1 | 2433869 | 1951-08-10 | 2433840 | 1951-07-12 | 29 | SVO |
| -13 | 11.5 | 2434235 | 1952-08-10 | 2434208 | 1952-07-14 | 27 | SVO |
| -12 | 11.5 | 2434603 | 1953-08-13 | 2434575 | 1953-07-16 | 28 | SVO |
| -11 | 11.5 | 2434962 | 1954-08-07 | 2434943 | 1954-07-19 | 19 | SVO |
| -10 | 11.4 | 2435338 | 1955-08-18 | 2435310 | 1955-07-21 | 28 | SVO |
| -9 | 11.4 | 2435691 | 1956-08-05 | 2435677 | 1956-07-22 | 14 | SVO |
| -8 | 11.2 | 2436053 | 1957-08-02 | 2436045 | 1957-07-25 | 8 | SVO |
| -7 | 11.3 | 2436421 | 1958-08-05 | 2436412 | 1958-07-27 | 9 | SVO |
| -6 | 11.0 | 2436776 | 1959-07-26 | 2436780 | 1959-07-30 | -4 | SVO |
| -5 | 12.2 | 2437139 | 1960-07-23 | 2437147 | 1960-07-31 | -8 | SVO |
| -4 | 12.0 | 2437503 | 1961-07-22 | 2437515 | 1961-08-03 | -12 | SVO |
| -3 | 11.1 | 2437853 | 1962-07-07 | 2437882 | 1962-08-05 | -29 | SVO |
| -2 | 12.1 | 2438212 | 1963-07-01 | 2438250 | 1963-08-08 | -38 | AAVSO |
| -1 | 11.3 | 2438577 | 1964-06-30 | 2438617 | 1964-08-09 | -40 | SVO |
| 0 | 11.6 | 2438930 | 1965-06-18 | 2438984 | 1965-08-11 | -54 | SVO |
| 1 | 11.7 | 2439300 | 1966-06-23 | 2439352 | 1966-08-14 | -52 | SVO |
| 2 | 10.7 | 2439660 | 1967-06-18 | 2439719 | 1967-08-16 | -59 | SVO |
| 3 | 11.8 | 2440035 | 1968-06-27 | 2440087 | 1968-08-18 | -52 | SVO |
| 4 | 12.3 | 2440416 | 1969-07-13 | 2440454 | 1969-08-20 | -38 | AAVSO |
| 5 | 11.0 | 2440778 | 1970-07-10 | 2440822 | 1970-08-23 | -44 | SVO |
| 6 | 2441145 | 1971-07-12 | 2441189 | 1971-08-25 | -44 | AAVSO | |
| 7 | 2441513 | 1972-07-14 | 2441557 | 1972-08-27 | -44 | AAVSO | |
| 8 | 11.6 | 2441902 | 1973-08-07 | 2441924 | 1973-08-29 | -22 | SVO |
| 9 | 12.0 | 2442264 | 1974-08-04 | 2442292 | 1974-09-01 | -28 | AAVSO |
| 10 | 11.6 | 2442636 | 1975-08-11 | 2442659 | 1975-09-03 | -23 | AAVSO |
| 11 | 12.5 | 2443003 | 1976-08-12 | 2443026 | 1976-09-04 | -23 | AAVSO |
| 12 | 11.9 | 2443369 | 1977-08-13 | 2443394 | 1977-09-07 | -25 | AAVSO |
| 13 | 12.1 | 2443736 | 1978-08-15 | 2443761 | 1978-09-09 | -25 | AAVSO |
| 14 | 2444102 | 1979-08-16 | 2444129 | 1979-09-12 | -27 | AAVSO | |
| 15 | 12.6 | 2444497 | 1980-09-14 | 2444496 | 1980-09-13 | 1 | AAVSO |
| 16 | 12.1 | 2444853 | 1981-09-05 | 2444864 | 1981-09-16 | -11 | AAVSO |
| 17 | 11.0 | 2445222 | 1982-09-09 | 2445231 | 1982-09-18 | -9 | AAVSO |
| 18 | 2445594 | 1983-09-16 | 2445599 | 1983-09-21 | -5 | AAVSO | |
| 19 | 12.2 | 2445961 | 1984-09-17 | 2445966 | 1984-09-22 | -5 | AAVSO |
| 20 | 11.1 | 2446343 | 1985-10-04 | 2446334 | 1985-09-25 | 9 | SVO |
| 21 | 12.6 | 2446702 | 1986-09-28 | 2446701 | 1986-09-27 | 1 | AAVSO |
| 22 | 2447065 | 1987-09-26 | 2447068 | 1987-09-29 | -3 | AAVSO | |
| 23 | 2447430 | 1988-09-25 | 2447436 | 1988-10-01 | -6 | AAVSO | |
| 24 | 2447805 | 1989-10-05 | 2447803 | 1989-10-03 | 2 | AAVSO | |
| 25 | 2448171 | 1990-10-06 | 2448171 | 1990-10-06 | 0 | AAVSO | |
| 26 | 2448544 | 1991-10-14 | 2448538 | 1991-10-08 | 6 | AAVSO | |
| 27 | 2448911 | 1992-10-15 | 2448906 | 1992-10-10 | 5 | AAVSO | |
| 28 | 2449275 | 1993-10-14 | 2449273 | 1993-10-12 | 2 | AAVSO | |
| 29 | 2449642 | 1994-10-16 | 2449641 | 1994-10-15 | 1 | AAVSO | |
| 30 | 2450012 | 1995-10-21 | 2450008 | 1995-10-17 | 4 | AAVSO | |
| 31 | 2450381 | 1996-10-24 | 2450376 | 1996-10-19 | 5 | AAVSO | |
| 32 | 2450747 | 1997-10-25 | 2450743 | 1997-10-21 | 4 | AAVSO | |
| 33 | 2451114 | 1998-10-27 | 2451110 | 1998-10-23 | 4 | AAVSO | |
| 34 | 2451481 | 1999-10-29 | 2451478 | 1999-10-26 | 3 | AAVSO | |
| 35 | 11.5 | 2451858 | 2000-11-09 | 2451845 | 2000-10-27 | 13 | SVO |
| 36 | 11.0 | 2452226 | 2001-11-12 | 2452213 | 2001-10-30 | 13 | SVO |
| 37 | 2452588 | 2002-11-09 | 2452580 | 2002-11-01 | 8 | AAVSO | |
| 38 | 11.0 | 2452964 | 2003-11-20 | 2452948 | 2003-11-04 | 16 | SVO |
| 39 | 11.6 | 2453353 | 2004-12-13 | 2453315 | 2004-11-05 | 38 | SVO |
| 40 | 10.8 | 2453710 | 2005-12-05 | 2453683 | 2005-11-08 | 27 | SVO |
| 41 | 2454061 | 2006-11-21 | 2454050 | 2006-11-10 | 11 | AAVSO | |
| 42 | 11.0 | 2454439 | 2007-12-04 | 2454418 | 2007-11-13 | 21 | SVO |
| 43 | 11.1 | 2454806 | 2008-12-05 | 2454785 | 2008-11-14 | 21 | SVO |
| 44 | 11.3 | 2455177 | 2009-12-11 | 2455152 | 2009-11-16 | 25 | SVO |
| 45 | 11.3 | 2455541 | 2010-12-10 | 2455520 | 2010-11-19 | 21 | AAVSO |
| 46 | 11.1 | 2455901 | 2011-12-05 | 2455887 | 2011-11-21 | 14 | AAVSO |
| 47 | 11.2 | 2456268 | 2012-12-06 | 2456255 | 2012-11-23 | 13 | AAVSO |
| 48 | 10.9 | 2456634 | 2013-12-07 | 2456622 | 2013-11-25 | 12 | AAVSO |
| 49 | 11.4 | 2456999 | 2014-12-07 | 2456990 | 2014-11-28 | 9 | AAVSO |
| 50 | 10.7 | 2457379 | 2015-12-22 | 2457357 | 2015-11-30 | 22 | AAVSO |
| 51 | 11.2 | 2457739 | 2016-12-16 | 2457725 | 2016-12-02 | 14 | SVO |
| 52 | 11.3 | 2458118 | 2017-12-30 | 2458092 | 2017-12-04 | 26 | SVO |
| 53 | 10.2 | 2458480 | 2018-12-27 | 2458460 | 2018-12-07 | 20 | SVO |
| 54 | 10.5 | 2458850 | 2020-01-01 | 2458827 | 2019-12-09 | 23 | SVO |
| 55 | 11.5 | 2459228 | 2021-01-13 | 2459194 | 2020-12-10 | 34 | SVO |
| 56 | 10.5 | 2459589 | 2022-01-09 | 2459562 | 2021-12-13 | 27 | 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. |