| E | Mag | O (JD) | O (dat) | C (JD) | C (Dat) | O-C | Source |
| -81 | 2411540 | 1890-06-21 | 2411467 | 1890-04-09 | 73 | SVO | |
| -80 | 2411870 | 1891-05-17 | 2411800 | 1891-03-08 | 70 | SVO | |
| -74 | 2413885 | 1896-11-21 | 2413796 | 1896-08-24 | 89 | SVO | |
| -73 | 2414200 | 1897-10-02 | 2414128 | 1897-07-22 | 72 | SVO | |
| -71 | 2414859 | 1899-07-23 | 2414794 | 1899-05-19 | 65 | SVO | |
| -70 | 2415201 | 1900-06-30 | 2415126 | 1900-04-16 | 75 | AnHar, 1909, vol 55, p 95 | |
| -69 | 2415526 | 1901-05-21 | 2415459 | 1901-03-15 | 67 | SVO | |
| -68 | 2415865 | 1902-04-25 | 2415792 | 1902-02-11 | 73 | SVO | |
| -67 | 2416200 | 1903-03-26 | 2416124 | 1903-01-09 | 76 | SVO | |
| -66 | 2416530 | 1904-02-19 | 2416457 | 1903-12-08 | 73 | SVO | |
| -65 | 2416847 | 1905-01-01 | 2416790 | 1904-11-05 | 57 | AAVSO | |
| -62 | 2417873 | 1907-10-24 | 2417788 | 1907-07-31 | 85 | AAVSO | |
| -61 | 2418212 | 1908-09-27 | 2418121 | 1908-06-28 | 91 | AAVSO | |
| -60 | 9.6 | 2418542 | 1909-08-23 | 2418453 | 1909-05-26 | 89 | AAVSO |
| -59 | 2418865 | 1910-07-12 | 2418786 | 1910-04-24 | 79 | AAVSO | |
| -58 | 2419191 | 1911-06-03 | 2419119 | 1911-03-23 | 72 | AAVSO | |
| -57 | 2419539 | 1912-05-16 | 2419451 | 1912-02-18 | 88 | AAVSO | |
| -56 | 2419877 | 1913-04-19 | 2419784 | 1913-01-16 | 93 | AAVSO | |
| -55 | 2420211 | 1914-03-19 | 2420117 | 1913-12-15 | 94 | AAVSO | |
| -53 | 2420869 | 1916-01-06 | 2420782 | 1915-10-11 | 87 | AAVSO | |
| -52 | 2421189 | 1916-11-21 | 2421115 | 1916-09-08 | 74 | AAVSO | |
| -51 | 2421523 | 1917-10-21 | 2421447 | 1917-08-06 | 76 | AAVSO | |
| -50 | 2421858 | 1918-09-21 | 2421780 | 1918-07-05 | 78 | AAVSO | |
| -49 | 2422151 | 1919-07-11 | 2422113 | 1919-06-03 | 38 | AAVSO | |
| -48 | 9.2 | 2422487 | 1920-06-11 | 2422445 | 1920-04-30 | 42 | AAVSO |
| -47 | 9.9 | 2422808 | 1921-04-28 | 2422778 | 1921-03-29 | 30 | SVO |
| -46 | 9.8 | 2423139 | 1922-03-25 | 2423111 | 1922-02-25 | 28 | SVO |
| -45 | 10.2 | 2423465 | 1923-02-14 | 2423443 | 1923-01-23 | 22 | AAVSO |
| -44 | 10.0 | 2423788 | 1924-01-03 | 2423776 | 1923-12-22 | 12 | AAVSO |
| -43 | 2424121 | 1924-12-01 | 2424109 | 1924-11-19 | 12 | AAVSO | |
| -42 | 10.3 | 2424444 | 1925-10-20 | 2424441 | 1925-10-17 | 3 | AAVSO |
| -41 | 10.0 | 2424773 | 1926-09-14 | 2424774 | 1926-09-15 | -1 | SVO |
| -40 | 10.0 | 2425111 | 1927-08-18 | 2425107 | 1927-08-14 | 4 | SVO |
| -39 | 10.0 | 2425446 | 1928-07-18 | 2425439 | 1928-07-11 | 7 | SVO |
| -38 | 10.5 | 2425783 | 1929-06-20 | 2425772 | 1929-06-09 | 11 | SVO |
| -37 | 10.0 | 2426119 | 1930-05-22 | 2426105 | 1930-05-08 | 14 | SVO |
| -36 | 9.8 | 2426441 | 1931-04-09 | 2426438 | 1931-04-06 | 3 | AAVSO |
| -35 | 9.6 | 2426771 | 1932-03-04 | 2426770 | 1932-03-03 | 1 | AAVSO |
| -34 | 9.8 | 2427110 | 1933-02-06 | 2427103 | 1933-01-30 | 7 | AAVSO |
| -33 | 2427443 | 1934-01-05 | 2427436 | 1933-12-29 | 7 | AAVSO | |
| -32 | 2427770 | 1934-11-28 | 2427768 | 1934-11-26 | 2 | AAVSO | |
| -30 | 10.3 | 2428442 | 1936-09-30 | 2428434 | 1936-09-22 | 8 | AAVSO |
| -29 | 9.6 | 2428757 | 1937-08-11 | 2428766 | 1937-08-20 | -9 | SVO |
| -28 | 10.6 | 2429090 | 1938-07-10 | 2429099 | 1938-07-19 | -9 | SVO |
| -27 | 10.1 | 2429425 | 1939-06-10 | 2429432 | 1939-06-17 | -7 | SVO |
| -26 | 10.0 | 2429751 | 1940-05-01 | 2429764 | 1940-05-14 | -13 | AAVSO |
| -25 | 10.0 | 2430107 | 1941-04-22 | 2430097 | 1941-04-12 | 10 | AAVSO |
| -24 | 10.4 | 2430423 | 1942-03-04 | 2430430 | 1942-03-11 | -7 | AAVSO |
| -23 | 10.0 | 2430739 | 1943-01-14 | 2430762 | 1943-02-06 | -23 | AAVSO |
| -22 | 2431075 | 1943-12-16 | 2431095 | 1944-01-05 | -20 | AAVSO | |
| -21 | 2431407 | 1944-11-12 | 2431428 | 1944-12-03 | -21 | AAVSO | |
| -20 | 9.9 | 2431739 | 1945-10-10 | 2431760 | 1945-10-31 | -21 | AAVSO |
| -19 | 9.5 | 2432077 | 1946-09-13 | 2432093 | 1946-09-29 | -16 | AAVSO |
| -18 | 10.1 | 2432403 | 1947-08-05 | 2432426 | 1947-08-28 | -23 | SVO |
| -17 | 9.6 | 2432736 | 1948-07-03 | 2432758 | 1948-07-25 | -22 | SVO |
| -16 | 10.1 | 2433073 | 1949-06-05 | 2433091 | 1949-06-23 | -18 | SVO |
| -15 | 10.1 | 2433404 | 1950-05-02 | 2433424 | 1950-05-22 | -20 | AAVSO |
| -14 | 9.5 | 2433750 | 1951-04-13 | 2433756 | 1951-04-19 | -6 | AAVSO |
| -13 | 11.2 | 2434086 | 1952-03-14 | 2434089 | 1952-03-17 | -3 | AAVSO |
| -12 | 10.8 | 2434428 | 1953-02-19 | 2434422 | 1953-02-13 | 6 | AAVSO |
| -11 | 11.0 | 2434743 | 1953-12-31 | 2434755 | 1954-01-12 | -12 | AAVSO |
| -10 | 2435084 | 1954-12-07 | 2435087 | 1954-12-10 | -3 | AAVSO | |
| -9 | 10.0 | 2435404 | 1955-10-23 | 2435420 | 1955-11-08 | -16 | AAVSO |
| -8 | 9.6 | 2435742 | 1956-09-25 | 2435753 | 1956-10-06 | -11 | AAVSO |
| -7 | 9.6 | 2436076 | 1957-08-25 | 2436085 | 1957-09-03 | -9 | AAVSO |
| -6 | 10.0 | 2436410 | 1958-07-25 | 2436418 | 1958-08-02 | -8 | SVO |
| -5 | 9.9 | 2436751 | 1959-07-01 | 2436751 | 1959-07-01 | 0 | AAVSO |
| -4 | 10.4 | 2437079 | 1960-05-24 | 2437083 | 1960-05-28 | -4 | AAVSO |
| -3 | 10.7 | 2437416 | 1961-04-26 | 2437416 | 1961-04-26 | 0 | AAVSO |
| -2 | 10.2 | 2437746 | 1962-03-22 | 2437749 | 1962-03-25 | -3 | AAVSO |
| -1 | 2438079 | 1963-02-18 | 2438081 | 1963-02-20 | -2 | AAVSO | |
| 0 | 11.1 | 2438408 | 1964-01-13 | 2438414 | 1964-01-19 | -6 | AAVSO |
| 1 | 2438739 | 1964-12-09 | 2438747 | 1964-12-17 | -8 | AAVSO | |
| 2 | 2439049 | 1965-10-15 | 2439079 | 1965-11-14 | -30 | AAVSO | |
| 3 | 10.2 | 2439377 | 1966-09-08 | 2439412 | 1966-10-13 | -35 | SVO |
| 4 | 9.6 | 2439703 | 1967-07-31 | 2439745 | 1967-09-11 | -42 | SVO |
| 5 | 10.4 | 2440034 | 1968-06-26 | 2440077 | 1968-08-08 | -43 | SVO |
| 6 | 9.7 | 2440352 | 1969-05-10 | 2440410 | 1969-07-07 | -58 | SVO |
| 7 | 9.9 | 2440691 | 1970-04-14 | 2440743 | 1970-06-05 | -52 | AAVSO |
| 8 | 10.3 | 2440999 | 1971-02-16 | 2441075 | 1971-05-03 | -76 | AAVSO |
| 9 | 2441332 | 1972-01-15 | 2441408 | 1972-03-31 | -76 | AAVSO | |
| 10 | 2441654 | 1972-12-02 | 2441741 | 1973-02-27 | -87 | AAVSO | |
| 11 | 2441982 | 1973-10-26 | 2442073 | 1974-01-25 | -91 | AAVSO | |
| 12 | 10.2 | 2442304 | 1974-09-13 | 2442406 | 1974-12-24 | -102 | AAVSO |
| 13 | 10.1 | 2442626 | 1975-08-01 | 2442739 | 1975-11-22 | -113 | SVO |
| 14 | 9.7 | 2442954 | 1976-06-24 | 2443072 | 1976-10-20 | -118 | SVO |
| 15 | 10.1 | 2443285 | 1977-05-21 | 2443404 | 1977-09-17 | -119 | SVO |
| 16 | 10.4 | 2443619 | 1978-04-20 | 2443737 | 1978-08-16 | -118 | SVO |
| 17 | 11.3 | 2443951 | 1979-03-18 | 2444070 | 1979-07-15 | -119 | AAVSO |
| 18 | 10.0 | 2444283 | 1980-02-13 | 2444402 | 1980-06-11 | -119 | AAVSO |
| 19 | 10.0 | 2444602 | 1980-12-28 | 2444735 | 1981-05-10 | -133 | AAVSO |
| 20 | 11.1 | 2444936 | 1981-11-27 | 2445068 | 1982-04-08 | -132 | AAVSO |
| 21 | 10.2 | 2445274 | 1982-10-31 | 2445400 | 1983-03-06 | -126 | SVO |
| 22 | 9.7 | 2445603 | 1983-09-25 | 2445733 | 1984-02-02 | -130 | SVO |
| 23 | 10.6 | 2445950 | 1984-09-06 | 2446066 | 1984-12-31 | -116 | SVO |
| 24 | 10.1 | 2446285 | 1985-08-07 | 2446398 | 1985-11-28 | -113 | SVO |
| 25 | 10.4 | 2446617 | 1986-07-05 | 2446731 | 1986-10-27 | -114 | SVO |
| 26 | 9.9 | 2446951 | 1987-06-04 | 2447064 | 1987-09-25 | -113 | SVO |
| 27 | 10.0 | 2447276 | 1988-04-24 | 2447396 | 1988-08-22 | -120 | SVO |
| 28 | 10.0 | 2447621 | 1989-04-04 | 2447729 | 1989-07-21 | -108 | SVO |
| 29 | 9.9 | 2447961 | 1990-03-10 | 2448062 | 1990-06-19 | -101 | SVO |
| 30 | 9.8 | 2448293 | 1991-02-05 | 2448394 | 1991-05-17 | -101 | SVO |
| 31 | 2448634 | 1992-01-12 | 2448727 | 1992-04-14 | -93 | AAVSO | |
| 32 | 2448969 | 1992-12-12 | 2449060 | 1993-03-13 | -91 | AAVSO | |
| 33 | 10.3 | 2449298 | 1993-11-06 | 2449392 | 1994-02-08 | -94 | SVO |
| 34 | 10.0 | 2449632 | 1994-10-06 | 2449725 | 1995-01-07 | -93 | SVO |
| 35 | 10.8 | 2449964 | 1995-09-03 | 2450058 | 1995-12-06 | -94 | SVO |
| 36 | 9.9 | 2450296 | 1996-07-31 | 2450390 | 1996-11-02 | -94 | SVO |
| 37 | 10.4 | 2450624 | 1997-06-24 | 2450723 | 1997-10-01 | -99 | SVO |
| 38 | 10.4 | 2450958 | 1998-05-24 | 2451056 | 1998-08-30 | -98 | SVO |
| 39 | 10.1 | 2451290 | 1999-04-21 | 2451389 | 1999-07-29 | -99 | SVO |
| 40 | 10.3 | 2451617 | 2000-03-13 | 2451721 | 2000-06-25 | -104 | SVO |
| 41 | 2451959 | 2001-02-18 | 2452054 | 2001-05-24 | -95 | AAVSO | |
| 42 | 2452279 | 2002-01-04 | 2452387 | 2002-04-22 | -108 | AAVSO | |
| 43 | 2452617 | 2002-12-08 | 2452719 | 2003-03-20 | -102 | AAVSO | |
| 44 | 10.2 | 2452941 | 2003-10-28 | 2453052 | 2004-02-16 | -111 | SVO |
| 45 | 10.1 | 2453271 | 2004-09-22 | 2453385 | 2005-01-14 | -114 | SVO |
| 46 | 9.9 | 2453606 | 2005-08-23 | 2453717 | 2005-12-12 | -111 | SVO |
| 47 | 10.2 | 2453939 | 2006-07-22 | 2454050 | 2006-11-10 | -111 | SVO |
| 48 | 10.8 | 2454277 | 2007-06-25 | 2454383 | 2007-10-09 | -106 | SVO |
| 49 | 9.6 | 2454602 | 2008-05-15 | 2454715 | 2008-09-05 | -113 | SVO |
| 50 | 10.4 | 2454943 | 2009-04-21 | 2455048 | 2009-08-04 | -105 | SVO |
| 51 | 10.1 | 2455284 | 2010-03-28 | 2455381 | 2010-07-03 | -97 | SVO |
| 52 | 10.1 | 2455617 | 2011-02-24 | 2455713 | 2011-05-31 | -96 | SVO |
| 53 | 9.9 | 2455951 | 2012-01-24 | 2456046 | 2012-04-28 | -95 | SVO |
| 54 | 10.8 | 2456284 | 2012-12-22 | 2456379 | 2013-03-27 | -95 | AAVSO |
| 55 | 10.0 | 2456615 | 2013-11-18 | 2456711 | 2014-02-22 | -96 | SVO |
| 56 | 9.8 | 2456938 | 2014-10-07 | 2457044 | 2015-01-21 | -106 | SVO |
| 57 | 10.0 | 2457278 | 2015-09-12 | 2457377 | 2015-12-20 | -99 | SVO |
| 58 | 9.9 | 2457606 | 2016-08-05 | 2457709 | 2016-11-16 | -103 | SVO |
| 59 | 9.9 | 2457941 | 2017-07-06 | 2458042 | 2017-10-15 | -101 | SVO |
| 60 | 9.9 | 2458272 | 2018-06-02 | 2458375 | 2018-09-13 | -103 | SVO |
| 61 | 10.1 | 2458608 | 2019-05-04 | 2458707 | 2019-08-11 | -99 | SVO |
| 62 | 10.1 | 2458930 | 2020-03-21 | 2459040 | 2020-07-09 | -110 | SVO |
| 63 | 9.5 | 2459270 | 2021-02-24 | 2459373 | 2021-06-07 | -103 | SVO |
| 64 | 10.5 | 2459600 | 2022-01-20 | 2459706 | 2022-05-06 | -106 | SVO |
| 65 | 2459930 | 2022-12-16 | 2460038 | 2023-04-03 | -108 | 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. |