| E | Mag | O (JD) | O (dat) | C (JD) | C (Dat) | O-C | Source |
| -72 | 2417155 | 1905-11-05 | 2417172 | 1905-11-22 | -17 | GuL, 1918, 1.1 | |
| -71 | 2417471 | 1906-09-17 | 2417506 | 1906-10-22 | -35 | GuL, 1918, 1.1 | |
| -69 | 2418122 | 1908-06-29 | 2418176 | 1908-08-22 | -54 | AAVSO | |
| -68 | 2418470 | 1909-06-12 | 2418510 | 1909-07-22 | -40 | AAVSO | |
| -67 | 2418828 | 1910-06-05 | 2418845 | 1910-06-22 | -17 | AAVSO | |
| -66 | 9.1 | 2419148 | 1911-04-21 | 2419180 | 1911-05-23 | -32 | AAVSO |
| -65 | 2419526 | 1912-05-03 | 2419514 | 1912-04-21 | 12 | AAVSO | |
| -64 | 2419865 | 1913-04-07 | 2419849 | 1913-03-22 | 16 | AAVSO | |
| -63 | 9.2 | 2420183 | 1914-02-19 | 2420184 | 1914-02-20 | -1 | SVO |
| -62 | 9.6 | 2420508 | 1915-01-10 | 2420518 | 1915-01-20 | -10 | SVO |
| -61 | 8.9 | 2420842 | 1915-12-10 | 2420853 | 1915-12-21 | -11 | SVO |
| -60 | 10.1 | 2421181 | 1916-11-13 | 2421188 | 1916-11-20 | -7 | SVO |
| -59 | 9.4 | 2421533 | 1917-10-31 | 2421522 | 1917-10-20 | 11 | SVO |
| -58 | 2421874 | 1918-10-07 | 2421857 | 1918-09-20 | 17 | AAVSO | |
| -57 | 9.2 | 2422214 | 1919-09-12 | 2422192 | 1919-08-21 | 22 | AAVSO |
| -56 | 2422540 | 1920-08-03 | 2422526 | 1920-07-20 | 14 | AAVSO | |
| -55 | 2422878 | 1921-07-07 | 2422861 | 1921-06-20 | 17 | AAVSO | |
| -54 | 2423210 | 1922-06-04 | 2423195 | 1922-05-20 | 15 | AAVSO | |
| -53 | 2423561 | 1923-05-21 | 2423530 | 1923-04-20 | 31 | AAVSO | |
| -52 | 9.3 | 2423881 | 1924-04-05 | 2423865 | 1924-03-20 | 16 | AAVSO |
| -51 | 10.3 | 2424210 | 1925-02-28 | 2424199 | 1925-02-17 | 11 | AAVSO |
| -50 | 10.1 | 2424554 | 1926-02-07 | 2424534 | 1926-01-18 | 20 | SVO |
| -49 | 9.0 | 2424871 | 1926-12-21 | 2424869 | 1926-12-19 | 2 | SVO |
| -48 | 10.2 | 2425216 | 1927-12-01 | 2425203 | 1927-11-18 | 13 | SVO |
| -47 | 10.2 | 2425554 | 1928-11-03 | 2425538 | 1928-10-18 | 16 | SVO |
| -46 | 9.7 | 2425883 | 1929-09-28 | 2425873 | 1929-09-18 | 10 | SVO |
| -45 | 9.7 | 2426218 | 1930-08-29 | 2426207 | 1930-08-18 | 11 | SVO |
| -44 | 9.9 | 2426548 | 1931-07-25 | 2426542 | 1931-07-19 | 6 | AAVSO |
| -43 | 9.4 | 2426877 | 1932-06-18 | 2426877 | 1932-06-18 | 0 | SVO |
| -42 | 9.4 | 2427205 | 1933-05-12 | 2427211 | 1933-05-18 | -6 | SVO |
| -41 | 10.0 | 2427520 | 1934-03-23 | 2427546 | 1934-04-18 | -26 | SVO |
| -40 | 9.7 | 2427855 | 1935-02-21 | 2427880 | 1935-03-18 | -25 | SVO |
| -39 | 9.7 | 2428191 | 1936-01-23 | 2428215 | 1936-02-16 | -24 | SVO |
| -38 | 10.2 | 2428530 | 1936-12-27 | 2428550 | 1937-01-16 | -20 | SVO |
| -37 | 9.8 | 2428864 | 1937-11-26 | 2428884 | 1937-12-16 | -20 | SVO |
| -36 | 10.1 | 2429199 | 1938-10-27 | 2429219 | 1938-11-16 | -20 | SVO |
| -35 | 9.7 | 2429525 | 1939-09-18 | 2429554 | 1939-10-17 | -29 | SVO |
| -34 | 9.6 | 2429853 | 1940-08-11 | 2429888 | 1940-09-15 | -35 | AAVSO |
| -33 | 2430170 | 1941-06-24 | 2430223 | 1941-08-16 | -53 | AAVSO | |
| -32 | 2430500 | 1942-05-20 | 2430558 | 1942-07-17 | -58 | AAVSO | |
| -31 | 2430840 | 1943-04-25 | 2430892 | 1943-06-16 | -52 | AAVSO | |
| -30 | 10.0 | 2431191 | 1944-04-10 | 2431227 | 1944-05-16 | -36 | AAVSO |
| -29 | 9.9 | 2431511 | 1945-02-24 | 2431562 | 1945-04-16 | -51 | SVO |
| -28 | 9.9 | 2431852 | 1946-01-31 | 2431896 | 1946-03-16 | -44 | SVO |
| -27 | 10.3 | 2432196 | 1947-01-10 | 2432231 | 1947-02-14 | -35 | SVO |
| -26 | 9.8 | 2432529 | 1947-12-09 | 2432566 | 1948-01-15 | -37 | SVO |
| -25 | 9.2 | 2432874 | 1948-11-18 | 2432900 | 1948-12-14 | -26 | SVO |
| -24 | 10.3 | 2433207 | 1949-10-17 | 2433235 | 1949-11-14 | -28 | SVO |
| -23 | 10.7 | 2433564 | 1950-10-09 | 2433569 | 1950-10-14 | -5 | SVO |
| -22 | 10.4 | 2433900 | 1951-09-10 | 2433904 | 1951-09-14 | -4 | AAVSO |
| -21 | 10.1 | 2434235 | 1952-08-10 | 2434239 | 1952-08-14 | -4 | AAVSO |
| -20 | 2434572 | 1953-07-13 | 2434573 | 1953-07-14 | -1 | AAVSO | |
| -19 | 2434900 | 1954-06-06 | 2434908 | 1954-06-14 | -8 | AAVSO | |
| -18 | 2435244 | 1955-05-16 | 2435243 | 1955-05-15 | 1 | AAVSO | |
| -17 | 10.5 | 2435590 | 1956-04-26 | 2435577 | 1956-04-13 | 13 | AAVSO |
| -16 | 10.3 | 2435930 | 1957-04-01 | 2435912 | 1957-03-14 | 18 | AAVSO |
| -15 | 9.4 | 2436265 | 1958-03-02 | 2436247 | 1958-02-12 | 18 | AAVSO |
| -14 | 10.3 | 2436612 | 1959-02-12 | 2436581 | 1959-01-12 | 31 | SVO |
| -13 | 9.8 | 2436952 | 1960-01-18 | 2436916 | 1959-12-13 | 36 | SVO |
| -12 | 10.3 | 2437291 | 1960-12-22 | 2437251 | 1960-11-12 | 40 | SVO |
| -11 | 10.1 | 2437624 | 1961-11-20 | 2437585 | 1961-10-12 | 39 | SVO |
| -10 | 9.7 | 2437960 | 1962-10-22 | 2437920 | 1962-09-12 | 40 | SVO |
| -9 | 10.3 | 2438304 | 1963-10-01 | 2438254 | 1963-08-12 | 50 | SVO |
| -8 | 10.6 | 2438631 | 1964-08-23 | 2438589 | 1964-07-12 | 42 | AAVSO |
| -7 | 9.9 | 2438968 | 1965-07-26 | 2438924 | 1965-06-12 | 44 | AAVSO |
| -6 | 2439309 | 1966-07-02 | 2439258 | 1966-05-12 | 51 | AAVSO | |
| -5 | 2439638 | 1967-05-27 | 2439593 | 1967-04-12 | 45 | AAVSO | |
| -4 | 2439974 | 1968-04-27 | 2439928 | 1968-03-12 | 46 | AAVSO | |
| -3 | 9.5 | 2440306 | 1969-03-25 | 2440262 | 1969-02-09 | 44 | AAVSO |
| -2 | 9.6 | 2440642 | 1970-02-24 | 2440597 | 1970-01-10 | 45 | SVO |
| -1 | 10.2 | 2440976 | 1971-01-24 | 2440932 | 1970-12-11 | 44 | SVO |
| 0 | 9.2 | 2441317 | 1971-12-31 | 2441266 | 1971-11-10 | 51 | SVO |
| 1 | 10.7 | 2441657 | 1972-12-05 | 2441601 | 1972-10-10 | 56 | SVO |
| 2 | 10.0 | 2441987 | 1973-10-31 | 2441936 | 1973-09-10 | 51 | SVO |
| 3 | 9.4 | 2442318 | 1974-09-27 | 2442270 | 1974-08-10 | 48 | AAVSO |
| 4 | 9.9 | 2442653 | 1975-08-28 | 2442605 | 1975-07-11 | 48 | AAVSO |
| 5 | 10.0 | 2442989 | 1976-07-29 | 2442940 | 1976-06-10 | 49 | AAVSO |
| 6 | 10.9 | 2443321 | 1977-06-26 | 2443274 | 1977-05-10 | 47 | AAVSO |
| 7 | 11.4 | 2443655 | 1978-05-26 | 2443609 | 1978-04-10 | 46 | AAVSO |
| 8 | 9.8 | 2443988 | 1979-04-24 | 2443943 | 1979-03-10 | 45 | AAVSO |
| 9 | 9.5 | 2444323 | 1980-03-24 | 2444278 | 1980-02-08 | 45 | AAVSO |
| 10 | 10.3 | 2444652 | 1981-02-16 | 2444613 | 1981-01-08 | 39 | SVO |
| 11 | 9.6 | 2444990 | 1982-01-20 | 2444947 | 1981-12-08 | 43 | SVO |
| 12 | 10.1 | 2445316 | 1982-12-12 | 2445282 | 1982-11-08 | 34 | SVO |
| 13 | 9.5 | 2445640 | 1983-11-01 | 2445617 | 1983-10-09 | 23 | SVO |
| 14 | 10.7 | 2445978 | 1984-10-04 | 2445951 | 1984-09-07 | 27 | SVO |
| 15 | 10.3 | 2446311 | 1985-09-02 | 2446286 | 1985-08-08 | 25 | AAVSO |
| 16 | 10.0 | 2446631 | 1986-07-19 | 2446621 | 1986-07-09 | 10 | AAVSO |
| 17 | 10.6 | 2446960 | 1987-06-13 | 2446955 | 1987-06-08 | 5 | AAVSO |
| 18 | 9.7 | 2447285 | 1988-05-03 | 2447290 | 1988-05-08 | -5 | SVO |
| 19 | 2447625 | 1989-04-08 | 2447625 | 1989-04-08 | 0 | AAVSO | |
| 20 | 9.9 | 2447952 | 1990-03-01 | 2447959 | 1990-03-08 | -7 | SVO |
| 21 | 9.8 | 2448276 | 1991-01-19 | 2448294 | 1991-02-06 | -18 | SVO |
| 22 | 9.8 | 2448606 | 1991-12-15 | 2448629 | 1992-01-07 | -23 | SVO |
| 23 | 9.9 | 2448941 | 1992-11-14 | 2448963 | 1992-12-06 | -22 | SVO |
| 24 | 10.0 | 2449273 | 1993-10-12 | 2449298 | 1993-11-06 | -25 | SVO |
| 25 | 2449598 | 1994-09-02 | 2449632 | 1994-10-06 | -34 | AAVSO | |
| 26 | 2449923 | 1995-07-24 | 2449967 | 1995-09-06 | -44 | AAVSO | |
| 27 | 2450249 | 1996-06-14 | 2450302 | 1996-08-06 | -53 | AAVSO | |
| 28 | 10.0 | 2450583 | 1997-05-14 | 2450636 | 1997-07-06 | -53 | SVO |
| 29 | 10.2 | 2450925 | 1998-04-21 | 2450971 | 1998-06-06 | -46 | SVO |
| 30 | 9.9 | 2451263 | 1999-03-25 | 2451306 | 1999-05-07 | -43 | SVO |
| 31 | 10.4 | 2451594 | 2000-02-19 | 2451640 | 2000-04-05 | -46 | SVO |
| 32 | 9.6 | 2451933 | 2001-01-23 | 2451975 | 2001-03-06 | -42 | SVO |
| 33 | 10.2 | 2452265 | 2001-12-21 | 2452310 | 2002-02-04 | -45 | SVO |
| 34 | 9.7 | 2452604 | 2002-11-25 | 2452644 | 2003-01-04 | -40 | SVO |
| 35 | 9.7 | 2452941 | 2003-10-28 | 2452979 | 2003-12-05 | -38 | SVO |
| 36 | 9.6 | 2453274 | 2004-09-25 | 2453314 | 2004-11-04 | -40 | SVO |
| 37 | 2453608 | 2005-08-25 | 2453648 | 2005-10-04 | -40 | AAVSO | |
| 38 | 2453947 | 2006-07-30 | 2453983 | 2006-09-04 | -36 | AAVSO | |
| 39 | 2454288 | 2007-07-06 | 2454317 | 2007-08-04 | -29 | AAVSO | |
| 40 | 2454618 | 2008-05-31 | 2454652 | 2008-07-04 | -34 | AAVSO | |
| 41 | 2454968 | 2009-05-16 | 2454987 | 2009-06-04 | -19 | AAVSO | |
| 42 | 10.0 | 2455313 | 2010-04-26 | 2455321 | 2010-05-04 | -8 | SVO |
| 43 | 9.5 | 2455638 | 2011-03-17 | 2455656 | 2011-04-04 | -18 | SVO |
| 44 | 9.9 | 2455983 | 2012-02-25 | 2455991 | 2012-03-04 | -8 | SVO |
| 45 | 10.7 | 2456325 | 2013-02-01 | 2456325 | 2013-02-01 | 0 | SVO |
| 46 | 10.2 | 2456663 | 2014-01-05 | 2456660 | 2014-01-02 | 3 | SVO |
| 47 | 10.0 | 2457000 | 2014-12-08 | 2456995 | 2014-12-03 | 5 | SVO |
| 48 | 9.4 | 2457334 | 2015-11-07 | 2457329 | 2015-11-02 | 5 | SVO |
| 49 | 9.4 | 2457664 | 2016-10-02 | 2457664 | 2016-10-02 | 0 | SVO |
| 50 | 9.7 | 2458003 | 2017-09-06 | 2457999 | 2017-09-02 | 4 | SVO |
| 51 | 2458350 | 2018-08-19 | 2458333 | 2018-08-02 | 17 | SVO | |
| 52 | 10.0 | 2458687 | 2019-07-22 | 2458668 | 2019-07-03 | 19 | SVO |
| 53 | 9.9 | 2459023 | 2020-06-22 | 2459003 | 2020-06-02 | 20 | SVO |
| 54 | 9.5 | 2459346 | 2021-05-11 | 2459337 | 2021-05-02 | 9 | SVO |
| 55 | 9.4 | 2459677 | 2022-04-07 | 2459672 | 2022-04-02 | 5 | 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. |