| E | Mag | O (JD) | O (dat) | C (JD) | C (Dat) | O-C | Source |
| -78 | 2411225 | 1889-08-10 | 2411319 | 1889-11-12 | -94 | AnHar, 1909, vol 55, p 95 | |
| -72 | 2413506 | 1895-11-08 | 2413519 | 1895-11-21 | -13 | AnHar, 1909, vol 55, p 95 | |
| -71 | 2413872 | 1896-11-08 | 2413885 | 1896-11-21 | -13 | AnHar, 1909, vol 55, p 95 | |
| -69 | 7.5 | 2414641 | 1898-12-17 | 2414619 | 1898-11-25 | 22 | SVO |
| -68 | 7.6 | 2415001 | 1899-12-12 | 2414985 | 1899-11-26 | 16 | SVO |
| -67 | 2415372 | 1900-12-18 | 2415352 | 1900-11-28 | 20 | AnHar, 1952, vol 115 | |
| -66 | 8.3 | 2415758 | 1902-01-08 | 2415718 | 1901-11-29 | 40 | SVO |
| -60 | 8.0 | 2417967 | 1908-01-26 | 2417918 | 1907-12-08 | 49 | SVO |
| -55 | 8.2 | 2419783 | 1913-01-15 | 2419751 | 1912-12-14 | 32 | SVO |
| -52 | 8.1 | 2420855 | 1915-12-23 | 2420850 | 1915-12-18 | 5 | SVO |
| -48 | 8.6 | 2422299 | 1919-12-06 | 2422317 | 1919-12-24 | -18 | SVO |
| -47 | 8.4 | 2422647 | 1920-11-18 | 2422683 | 1920-12-24 | -36 | SVO |
| -46 | 7.8 | 2422991 | 1921-10-28 | 2423050 | 1921-12-26 | -59 | AAVSO |
| -45 | 8.8 | 2423361 | 1922-11-02 | 2423416 | 1922-12-27 | -55 | SVO |
| -44 | 8.9 | 2423715 | 1923-10-22 | 2423783 | 1923-12-29 | -68 | SVO |
| -43 | 8.6 | 2424078 | 1924-10-19 | 2424149 | 1924-12-29 | -71 | SVO |
| -42 | 8.6 | 2424445 | 1925-10-21 | 2424516 | 1925-12-31 | -71 | AAVSO |
| -41 | 8.8 | 2424796 | 1926-10-07 | 2424883 | 1927-01-02 | -87 | SVO |
| -40 | 8.3 | 2425161 | 1927-10-07 | 2425249 | 1928-01-03 | -88 | SVO |
| -39 | 8.8 | 2425527 | 1928-10-07 | 2425616 | 1929-01-04 | -89 | SVO |
| -38 | 8.6 | 2425889 | 1929-10-04 | 2425982 | 1930-01-05 | -93 | AAVSO |
| -37 | 8.6 | 2426260 | 1930-10-10 | 2426349 | 1931-01-07 | -89 | SVO |
| -36 | 8.7 | 2426655 | 1931-11-09 | 2426715 | 1932-01-08 | -60 | AAVSO |
| -35 | 8.5 | 2427017 | 1932-11-05 | 2427082 | 1933-01-09 | -65 | AAVSO |
| -34 | 8.8 | 2427389 | 1933-11-12 | 2427449 | 1934-01-11 | -60 | AAVSO |
| -33 | 8.3 | 2427757 | 1934-11-15 | 2427815 | 1935-01-12 | -58 | AAVSO |
| -32 | 8.9 | 2428141 | 1935-12-04 | 2428182 | 1936-01-14 | -41 | AAVSO |
| -31 | 8.8 | 2428519 | 1936-12-16 | 2428548 | 1937-01-14 | -29 | SVO |
| -30 | 8.5 | 2428866 | 1937-11-28 | 2428915 | 1938-01-16 | -49 | SVO |
| -29 | 8.8 | 2429225 | 1938-11-22 | 2429281 | 1939-01-17 | -56 | SVO |
| -28 | 8.6 | 2429599 | 1939-12-01 | 2429648 | 1940-01-19 | -49 | SVO |
| -27 | 8.7 | 2429970 | 1940-12-06 | 2430015 | 1941-01-20 | -45 | SVO |
| -26 | 8.9 | 2430345 | 1941-12-16 | 2430381 | 1942-01-21 | -36 | SVO |
| -25 | 8.9 | 2430721 | 1942-12-27 | 2430748 | 1943-01-23 | -27 | SVO |
| -24 | 8.8 | 2431089 | 1943-12-30 | 2431114 | 1944-01-24 | -25 | SVO |
| -23 | 9.0 | 2431460 | 1945-01-04 | 2431481 | 1945-01-25 | -21 | SVO |
| -22 | 8.9 | 2431836 | 1946-01-15 | 2431847 | 1946-01-26 | -11 | SVO |
| -21 | 8.7 | 2432198 | 1947-01-12 | 2432214 | 1947-01-28 | -16 | SVO |
| -20 | 9.0 | 2432562 | 1948-01-11 | 2432581 | 1948-01-30 | -19 | SVO |
| -19 | 8.9 | 2432946 | 1949-01-29 | 2432947 | 1949-01-30 | -1 | SVO |
| -18 | 8.8 | 2433314 | 1950-02-01 | 2433314 | 1950-02-01 | 0 | SVO |
| -17 | 8.5 | 2433672 | 1951-01-25 | 2433680 | 1951-02-02 | -8 | SVO |
| -16 | 9.1 | 2434047 | 1952-02-04 | 2434047 | 1952-02-04 | 0 | SVO |
| -15 | 8.8 | 2434418 | 1953-02-09 | 2434413 | 1953-02-04 | 5 | SVO |
| -14 | 8.8 | 2434794 | 1954-02-20 | 2434780 | 1954-02-06 | 14 | SVO |
| -13 | 9.0 | 2435172 | 1955-03-05 | 2435147 | 1955-02-08 | 25 | SVO |
| -12 | 9.3 | 2435547 | 1956-03-14 | 2435513 | 1956-02-09 | 34 | SVO |
| -11 | 8.9 | 2435917 | 1957-03-19 | 2435880 | 1957-02-10 | 37 | SVO |
| -10 | 8.8 | 2436282 | 1958-03-19 | 2436246 | 1958-02-11 | 36 | SVO |
| -9 | 9.4 | 2436662 | 1959-04-03 | 2436613 | 1959-02-13 | 49 | SVO |
| -8 | 8.9 | 2437030 | 1960-04-05 | 2436979 | 1960-02-14 | 51 | SVO |
| -7 | 9.0 | 2437389 | 1961-03-30 | 2437346 | 1961-02-15 | 43 | SVO |
| -6 | 8.8 | 2437763 | 1962-04-08 | 2437713 | 1962-02-17 | 50 | SVO |
| -5 | 8.9 | 2438135 | 1963-04-15 | 2438079 | 1963-02-18 | 56 | SVO |
| -4 | 9.0 | 2438502 | 1964-04-16 | 2438446 | 1964-02-20 | 56 | SVO |
| -3 | 8.9 | 2438873 | 1965-04-22 | 2438812 | 1965-02-20 | 61 | SVO |
| -2 | 8.4 | 2439241 | 1966-04-25 | 2439179 | 1966-02-22 | 62 | SVO |
| -1 | 8.9 | 2439614 | 1967-05-03 | 2439545 | 1967-02-23 | 69 | SVO |
| 0 | 8.8 | 2439990 | 1968-05-13 | 2439912 | 1968-02-25 | 78 | SVO |
| 1 | 8.9 | 2440368 | 1969-05-26 | 2440279 | 1969-02-26 | 89 | SVO |
| 2 | 8.5 | 2440739 | 1970-06-01 | 2440645 | 1970-02-27 | 94 | SVO |
| 3 | 8.8 | 2441121 | 1971-06-18 | 2441012 | 1971-03-01 | 109 | SVO |
| 4 | 9.3 | 2441500 | 1972-07-01 | 2441378 | 1972-03-01 | 122 | SVO |
| 5 | 9.0 | 2441872 | 1973-07-08 | 2441745 | 1973-03-03 | 127 | SVO |
| 6 | 8.4 | 2442236 | 1974-07-07 | 2442111 | 1974-03-04 | 125 | SVO |
| 7 | 8.9 | 2442607 | 1975-07-13 | 2442478 | 1975-03-06 | 129 | SVO |
| 8 | 8.8 | 2442981 | 1976-07-21 | 2442844 | 1976-03-06 | 137 | SVO |
| 9 | 8.6 | 2443346 | 1977-07-21 | 2443211 | 1977-03-08 | 135 | SVO |
| 10 | 9.0 | 2443715 | 1978-07-25 | 2443578 | 1978-03-10 | 137 | SVO |
| 11 | 8.8 | 2444081 | 1979-07-26 | 2443944 | 1979-03-11 | 137 | SVO |
| 12 | 8.3 | 2444438 | 1980-07-17 | 2444311 | 1980-03-12 | 127 | SVO |
| 13 | 8.9 | 2444806 | 1981-07-20 | 2444677 | 1981-03-13 | 129 | SVO |
| 14 | 8.6 | 2445172 | 1982-07-21 | 2445044 | 1982-03-15 | 128 | SVO |
| 15 | 8.9 | 2445544 | 1983-07-28 | 2445410 | 1983-03-16 | 134 | SVO |
| 16 | 8.5 | 2445900 | 1984-07-18 | 2445777 | 1984-03-17 | 123 | SVO |
| 17 | 9.2 | 2446263 | 1985-07-16 | 2446144 | 1985-03-19 | 119 | SVO |
| 18 | 8.6 | 2446618 | 1986-07-06 | 2446510 | 1986-03-20 | 108 | SVO |
| 19 | 9.4 | 2446985 | 1987-07-08 | 2446877 | 1987-03-22 | 108 | SVO |
| 20 | 8.9 | 2447335 | 1988-06-22 | 2447243 | 1988-03-22 | 92 | SVO |
| 21 | 8.6 | 2447676 | 1989-05-29 | 2447610 | 1989-03-24 | 66 | SVO |
| 22 | 8.7 | 2448042 | 1990-05-30 | 2447976 | 1990-03-25 | 66 | SVO |
| 23 | 9.2 | 2448403 | 1991-05-26 | 2448343 | 1991-03-27 | 60 | SVO |
| 24 | 8.7 | 2448747 | 1992-05-04 | 2448710 | 1992-03-28 | 37 | SVO |
| 25 | 2449108 | 1993-04-30 | 2449076 | 1993-03-29 | 32 | AAVSO | |
| 26 | 8.9 | 2449469 | 1994-04-26 | 2449443 | 1994-03-31 | 26 | SVO |
| 27 | 2449812 | 1995-04-04 | 2449809 | 1995-04-01 | 3 | AAVSO | |
| 28 | 2450176 | 1996-04-02 | 2450176 | 1996-04-02 | 0 | AAVSO | |
| 29 | 8.9 | 2450517 | 1997-03-09 | 2450542 | 1997-04-03 | -25 | SVO |
| 30 | 8.7 | 2450862 | 1998-02-17 | 2450909 | 1998-04-05 | -47 | SVO |
| 31 | 8.7 | 2451209 | 1999-01-30 | 2451276 | 1999-04-07 | -67 | SVO |
| 32 | 2451562 | 2000-01-18 | 2451642 | 2000-04-07 | -80 | AAVSO | |
| 33 | 8.7 | 2451922 | 2001-01-12 | 2452009 | 2001-04-09 | -87 | SVO |
| 34 | 2452297 | 2002-01-22 | 2452375 | 2002-04-10 | -78 | AAVSO | |
| 35 | 8.8 | 2452636 | 2002-12-27 | 2452742 | 2003-04-12 | -106 | SVO |
| 36 | 8.7 | 2452999 | 2003-12-25 | 2453108 | 2004-04-12 | -109 | SVO |
| 37 | 8.4 | 2453349 | 2004-12-09 | 2453475 | 2005-04-14 | -126 | SVO |
| 38 | 2453733 | 2005-12-28 | 2453842 | 2006-04-16 | -109 | AAVSO | |
| 39 | 8.6 | 2454083 | 2006-12-13 | 2454208 | 2007-04-17 | -125 | SVO |
| 40 | 8.8 | 2454457 | 2007-12-22 | 2454575 | 2008-04-18 | -118 | SVO |
| 41 | 2454826 | 2008-12-25 | 2454941 | 2009-04-19 | -115 | AAVSO | |
| 42 | 2455200 | 2010-01-03 | 2455308 | 2010-04-21 | -108 | AAVSO | |
| 43 | 2455561 | 2010-12-30 | 2455674 | 2011-04-22 | -113 | AAVSO | |
| 44 | 2455943 | 2012-01-16 | 2456041 | 2012-04-23 | -98 | AAVSO | |
| 45 | 9.6 | 2456318 | 2013-01-25 | 2456408 | 2013-04-25 | -90 | AAVSO |
| 46 | 8.8 | 2456688 | 2014-01-30 | 2456774 | 2014-04-26 | -86 | SVO |
| 47 | 9.2 | 2457078 | 2015-02-24 | 2457141 | 2015-04-28 | -63 | SVO |
| 48 | 9.6 | 2457459 | 2016-03-11 | 2457507 | 2016-04-28 | -48 | AAVSO |
| 49 | 8.6 | 2457827 | 2017-03-14 | 2457874 | 2017-04-30 | -47 | SVO |
| 50 | 8.6 | 2458215 | 2018-04-06 | 2458240 | 2018-05-01 | -25 | SVO |
| 51 | 8.1 | 2458572 | 2019-03-29 | 2458607 | 2019-05-03 | -35 | SVO |
| 52 | 8.2 | 2458934 | 2020-03-25 | 2458974 | 2020-05-04 | -40 | SVO |
| 53 | 8.0 | 2459310 | 2021-04-05 | 2459340 | 2021-05-05 | -30 | SVO |
| 54 | 8.8 | 2459693 | 2022-04-23 | 2459707 | 2022-05-07 | -14 | 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. |