| E | Mag | O (JD) | O (dat) | C (JD) | C (Dat) | O-C | Source |
| -71 | 2412920 | 1894-04-01 | 2412974 | 1894-05-25 | -54 | SVO | |
| -70 | 2413290 | 1895-04-06 | 2413339 | 1895-05-25 | -49 | SVO | |
| -69 | 2413660 | 1896-04-10 | 2413705 | 1896-05-25 | -45 | SVO | |
| -68 | 2414020 | 1897-04-05 | 2414071 | 1897-05-26 | -51 | SVO | |
| -66 | 2414780 | 1899-05-05 | 2414802 | 1899-05-27 | -22 | AnHar, 1909, vol 55, p 95 | |
| -65 | 2415140 | 1900-04-30 | 2415168 | 1900-05-28 | -28 | AnHar, 1909, vol 55, p 95 | |
| -64 | 2415520 | 1901-05-15 | 2415533 | 1901-05-28 | -13 | AnHar, 1909, vol 55, p 95 | |
| -63 | 2415885 | 1902-05-15 | 2415899 | 1902-05-29 | -14 | SVO | |
| -62 | 2416250 | 1903-05-15 | 2416265 | 1903-05-30 | -15 | SVO | |
| -61 | 2416625 | 1904-05-24 | 2416631 | 1904-05-30 | -6 | SVO | |
| -60 | 2416980 | 1905-05-14 | 2416996 | 1905-05-30 | -16 | SVO | |
| -57 | 2418080 | 1908-05-18 | 2418093 | 1908-05-31 | -13 | SVO | |
| -53 | 11.7 | 2419538 | 1912-05-15 | 2419556 | 1912-06-02 | -18 | SVO |
| -51 | 2420260 | 1914-05-07 | 2420287 | 1914-06-03 | -27 | SVO | |
| -49 | 2421010 | 1916-05-26 | 2421019 | 1916-06-04 | -9 | SVO | |
| -47 | 2421720 | 1918-05-06 | 2421750 | 1918-06-05 | -30 | SVO | |
| -46 | 11.4 | 2422080 | 1919-05-01 | 2422116 | 1919-06-06 | -36 | SVO |
| -45 | 2422430 | 1920-04-15 | 2422481 | 1920-06-05 | -51 | SVO | |
| -44 | 11.2 | 2422798 | 1921-04-18 | 2422847 | 1921-06-06 | -49 | AAVSO |
| -43 | 2423157 | 1922-04-12 | 2423213 | 1922-06-07 | -56 | AAVSO | |
| -42 | 11.4 | 2423521 | 1923-04-11 | 2423578 | 1923-06-07 | -57 | SVO |
| -41 | 10.2 | 2423887 | 1924-04-11 | 2423944 | 1924-06-07 | -57 | AAVSO |
| -40 | 11.1 | 2424246 | 1925-04-05 | 2424310 | 1925-06-08 | -64 | SVO |
| -39 | 10.8 | 2424613 | 1926-04-07 | 2424675 | 1926-06-08 | -62 | AAVSO |
| -38 | 11.2 | 2424983 | 1927-04-12 | 2425041 | 1927-06-09 | -58 | AAVSO |
| -37 | 10.9 | 2425351 | 1928-04-14 | 2425407 | 1928-06-09 | -56 | SVO |
| -36 | 11.4 | 2425710 | 1929-04-08 | 2425773 | 1929-06-10 | -63 | SVO |
| -35 | 11.3 | 2426080 | 1930-04-13 | 2426138 | 1930-06-10 | -58 | SVO |
| -34 | 11.4 | 2426459 | 1931-04-27 | 2426504 | 1931-06-11 | -45 | SVO |
| -33 | 10.6 | 2426813 | 1932-04-15 | 2426870 | 1932-06-11 | -57 | SVO |
| -32 | 11.8 | 2427200 | 1933-05-07 | 2427235 | 1933-06-11 | -35 | AAVSO |
| -31 | 11.9 | 2427573 | 1934-05-15 | 2427601 | 1934-06-12 | -28 | SVO |
| -30 | 10.9 | 2427941 | 1935-05-18 | 2427967 | 1935-06-13 | -26 | SVO |
| -29 | 13.0 | 2428323 | 1936-06-03 | 2428332 | 1936-06-12 | -9 | AAVSO |
| -28 | 11.8 | 2428675 | 1937-05-21 | 2428698 | 1937-06-13 | -23 | AAVSO |
| -27 | 10.8 | 2429050 | 1938-05-31 | 2429064 | 1938-06-14 | -14 | SVO |
| -26 | 11.8 | 2429422 | 1939-06-07 | 2429429 | 1939-06-14 | -7 | AAVSO |
| -25 | 11.8 | 2429795 | 1940-06-14 | 2429795 | 1940-06-14 | 0 | AAVSO |
| -24 | 10.3 | 2430161 | 1941-06-15 | 2430161 | 1941-06-15 | 0 | SVO |
| -23 | 2430533 | 1942-06-22 | 2430526 | 1942-06-15 | 7 | AAVSO | |
| -22 | 11.5 | 2430901 | 1943-06-25 | 2430892 | 1943-06-16 | 9 | AAVSO |
| -21 | 11.3 | 2431270 | 1944-06-28 | 2431258 | 1944-06-16 | 12 | SVO |
| -20 | 12.6 | 2431655 | 1945-07-18 | 2431623 | 1945-06-16 | 32 | AAVSO |
| -19 | 11.5 | 2432011 | 1946-07-09 | 2431989 | 1946-06-17 | 22 | SVO |
| -18 | 11.0 | 2432377 | 1947-07-10 | 2432355 | 1947-06-18 | 22 | SVO |
| -17 | 11.6 | 2432764 | 1948-07-31 | 2432720 | 1948-06-17 | 44 | SVO |
| -16 | 11.5 | 2433128 | 1949-07-30 | 2433086 | 1949-06-18 | 42 | SVO |
| -15 | 11.5 | 2433495 | 1950-08-01 | 2433452 | 1950-06-19 | 43 | SVO |
| -14 | 11.1 | 2433869 | 1951-08-10 | 2433817 | 1951-06-19 | 52 | SVO |
| -13 | 11.5 | 2434235 | 1952-08-10 | 2434183 | 1952-06-19 | 52 | SVO |
| -12 | 11.5 | 2434603 | 1953-08-13 | 2434549 | 1953-06-20 | 54 | SVO |
| -11 | 11.5 | 2434962 | 1954-08-07 | 2434915 | 1954-06-21 | 47 | SVO |
| -10 | 11.4 | 2435338 | 1955-08-18 | 2435280 | 1955-06-21 | 58 | SVO |
| -9 | 11.4 | 2435691 | 1956-08-05 | 2435646 | 1956-06-21 | 45 | SVO |
| -8 | 11.2 | 2436053 | 1957-08-02 | 2436012 | 1957-06-22 | 41 | SVO |
| -7 | 11.3 | 2436421 | 1958-08-05 | 2436377 | 1958-06-22 | 44 | SVO |
| -6 | 11.0 | 2436776 | 1959-07-26 | 2436743 | 1959-06-23 | 33 | SVO |
| -5 | 12.2 | 2437139 | 1960-07-23 | 2437109 | 1960-06-23 | 30 | SVO |
| -4 | 12.0 | 2437503 | 1961-07-22 | 2437474 | 1961-06-23 | 29 | SVO |
| -3 | 11.1 | 2437853 | 1962-07-07 | 2437840 | 1962-06-24 | 13 | SVO |
| -2 | 12.1 | 2438212 | 1963-07-01 | 2438206 | 1963-06-25 | 6 | AAVSO |
| -1 | 11.3 | 2438577 | 1964-06-30 | 2438571 | 1964-06-24 | 6 | SVO |
| 0 | 11.6 | 2438930 | 1965-06-18 | 2438937 | 1965-06-25 | -7 | SVO |
| 1 | 11.7 | 2439300 | 1966-06-23 | 2439303 | 1966-06-26 | -3 | SVO |
| 2 | 10.7 | 2439660 | 1967-06-18 | 2439668 | 1967-06-26 | -8 | SVO |
| 3 | 11.8 | 2440035 | 1968-06-27 | 2440034 | 1968-06-26 | 1 | SVO |
| 4 | 12.3 | 2440416 | 1969-07-13 | 2440400 | 1969-06-27 | 16 | AAVSO |
| 5 | 11.0 | 2440778 | 1970-07-10 | 2440765 | 1970-06-27 | 13 | SVO |
| 6 | 2441145 | 1971-07-12 | 2441131 | 1971-06-28 | 14 | AAVSO | |
| 7 | 2441513 | 1972-07-14 | 2441497 | 1972-06-28 | 16 | AAVSO | |
| 8 | 11.6 | 2441902 | 1973-08-07 | 2441862 | 1973-06-28 | 40 | SVO |
| 9 | 12.0 | 2442264 | 1974-08-04 | 2442228 | 1974-06-29 | 36 | AAVSO |
| 10 | 11.6 | 2442636 | 1975-08-11 | 2442594 | 1975-06-30 | 42 | AAVSO |
| 11 | 12.5 | 2443003 | 1976-08-12 | 2442959 | 1976-06-29 | 44 | AAVSO |
| 12 | 11.9 | 2443369 | 1977-08-13 | 2443325 | 1977-06-30 | 44 | AAVSO |
| 13 | 12.1 | 2443736 | 1978-08-15 | 2443691 | 1978-07-01 | 45 | AAVSO |
| 14 | 2444102 | 1979-08-16 | 2444057 | 1979-07-02 | 45 | AAVSO | |
| 15 | 12.6 | 2444497 | 1980-09-14 | 2444422 | 1980-07-01 | 75 | AAVSO |
| 16 | 12.1 | 2444853 | 1981-09-05 | 2444788 | 1981-07-02 | 65 | AAVSO |
| 17 | 11.0 | 2445222 | 1982-09-09 | 2445154 | 1982-07-03 | 68 | AAVSO |
| 18 | 2445594 | 1983-09-16 | 2445519 | 1983-07-03 | 75 | AAVSO | |
| 19 | 12.2 | 2445961 | 1984-09-17 | 2445885 | 1984-07-03 | 76 | AAVSO |
| 20 | 11.1 | 2446343 | 1985-10-04 | 2446251 | 1985-07-04 | 92 | SVO |
| 21 | 12.6 | 2446702 | 1986-09-28 | 2446616 | 1986-07-04 | 86 | AAVSO |
| 22 | 2447065 | 1987-09-26 | 2446982 | 1987-07-05 | 83 | AAVSO | |
| 23 | 2447430 | 1988-09-25 | 2447348 | 1988-07-05 | 82 | AAVSO | |
| 24 | 2447805 | 1989-10-05 | 2447713 | 1989-07-05 | 92 | AAVSO | |
| 25 | 2448171 | 1990-10-06 | 2448079 | 1990-07-06 | 92 | AAVSO | |
| 26 | 2448544 | 1991-10-14 | 2448445 | 1991-07-07 | 99 | AAVSO | |
| 27 | 2448911 | 1992-10-15 | 2448810 | 1992-07-06 | 101 | AAVSO | |
| 28 | 2449275 | 1993-10-14 | 2449176 | 1993-07-07 | 99 | AAVSO | |
| 29 | 2449642 | 1994-10-16 | 2449542 | 1994-07-08 | 100 | AAVSO | |
| 30 | 2450012 | 1995-10-21 | 2449907 | 1995-07-08 | 105 | AAVSO | |
| 31 | 2450381 | 1996-10-24 | 2450273 | 1996-07-08 | 108 | AAVSO | |
| 32 | 2450747 | 1997-10-25 | 2450639 | 1997-07-09 | 108 | AAVSO | |
| 33 | 2451114 | 1998-10-27 | 2451004 | 1998-07-09 | 110 | AAVSO | |
| 34 | 2451481 | 1999-10-29 | 2451370 | 1999-07-10 | 111 | AAVSO | |
| 35 | 11.5 | 2451858 | 2000-11-09 | 2451736 | 2000-07-10 | 122 | SVO |
| 36 | 11.0 | 2452226 | 2001-11-12 | 2452101 | 2001-07-10 | 125 | SVO |
| 37 | 2452588 | 2002-11-09 | 2452467 | 2002-07-11 | 121 | AAVSO | |
| 38 | 11.0 | 2452964 | 2003-11-20 | 2452833 | 2003-07-12 | 131 | SVO |
| 39 | 11.6 | 2453353 | 2004-12-13 | 2453199 | 2004-07-12 | 154 | SVO |
| 40 | 10.8 | 2453710 | 2005-12-05 | 2453564 | 2005-07-12 | 146 | SVO |
| 41 | 2454061 | 2006-11-21 | 2453930 | 2006-07-13 | 131 | AAVSO | |
| 42 | 11.0 | 2454439 | 2007-12-04 | 2454296 | 2007-07-14 | 143 | SVO |
| 43 | 11.1 | 2454806 | 2008-12-05 | 2454661 | 2008-07-13 | 145 | SVO |
| 44 | 11.3 | 2455177 | 2009-12-11 | 2455027 | 2009-07-14 | 150 | SVO |
| 45 | 11.3 | 2455541 | 2010-12-10 | 2455393 | 2010-07-15 | 148 | AAVSO |
| 46 | 11.1 | 2455901 | 2011-12-05 | 2455758 | 2011-07-15 | 143 | AAVSO |
| 47 | 11.2 | 2456268 | 2012-12-06 | 2456124 | 2012-07-15 | 144 | AAVSO |
| 48 | 10.9 | 2456634 | 2013-12-07 | 2456490 | 2013-07-16 | 144 | AAVSO |
| 49 | 11.4 | 2456999 | 2014-12-07 | 2456855 | 2014-07-16 | 144 | AAVSO |
| 50 | 10.7 | 2457379 | 2015-12-22 | 2457221 | 2015-07-17 | 158 | AAVSO |
| 51 | 11.2 | 2457739 | 2016-12-16 | 2457587 | 2016-07-17 | 152 | SVO |
| 52 | 11.3 | 2458118 | 2017-12-30 | 2457952 | 2017-07-17 | 166 | SVO |
| 53 | 10.2 | 2458480 | 2018-12-27 | 2458318 | 2018-07-18 | 162 | SVO |
| 54 | 10.5 | 2458850 | 2020-01-01 | 2458684 | 2019-07-19 | 166 | SVO |
| 55 | 11.5 | 2459228 | 2021-01-13 | 2459049 | 2020-07-18 | 179 | SVO |
| 56 | 10.5 | 2459589 | 2022-01-09 | 2459415 | 2021-07-19 | 174 | 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. |