| E | Mag | O (JD) | O (dat) | C (JD) | C (Dat) | O-C | Source |
| -61 | 2414815 | 1899-06-09 | 2414688 | 1899-02-02 | 127 | TvOC, 1910, vol 5, p 40, AnHar, 1909, vol 55, p 95 | |
| -60 | 2415245 | 1900-08-13 | 2415139 | 1900-04-29 | 106 | AnHar, 1909, vol 55, p 95 | |
| -52 | 2418761 | 1910-03-30 | 2418751 | 1910-03-20 | 10 | TvOC, 1910, vol 5, p 40 | |
| -45 | 11.6 | 2421890 | 1918-10-23 | 2421911 | 1918-11-13 | -21 | SVO |
| -43 | 10.1 | 2422778 | 1921-03-29 | 2422814 | 1921-05-04 | -36 | AAVSO |
| -42 | 9.6 | 2423223 | 1922-06-17 | 2423265 | 1922-07-29 | -42 | SVO |
| -41 | 9.3 | 2423669 | 1923-09-06 | 2423717 | 1923-10-24 | -48 | SVO |
| -40 | 10.2 | 2424132 | 1924-12-12 | 2424168 | 1925-01-17 | -36 | SVO |
| -39 | 10.7 | 2424586 | 1926-03-11 | 2424620 | 1926-04-14 | -34 | SVO |
| -38 | 10.0 | 2425036 | 1927-06-04 | 2425071 | 1927-07-09 | -35 | SVO |
| -37 | 10.9 | 2425481 | 1928-08-22 | 2425522 | 1928-10-02 | -41 | SVO |
| -36 | 10.3 | 2425932 | 1929-11-16 | 2425974 | 1929-12-28 | -42 | SVO |
| -35 | 10.4 | 2426376 | 1931-02-03 | 2426425 | 1931-03-24 | -49 | SVO |
| -34 | 11.8 | 2426836 | 1932-05-08 | 2426877 | 1932-06-18 | -41 | AAVSO |
| -33 | 12.0 | 2427291 | 1933-08-06 | 2427328 | 1933-09-12 | -37 | SVO |
| -32 | 12.2 | 2427739 | 1934-10-28 | 2427780 | 1934-12-08 | -41 | AAVSO |
| -31 | 11.3 | 2428216 | 1936-02-17 | 2428231 | 1936-03-03 | -15 | SVO |
| -30 | 11.0 | 2428648 | 1937-04-24 | 2428683 | 1937-05-29 | -35 | AAVSO |
| -29 | 11.4 | 2429110 | 1938-07-30 | 2429134 | 1938-08-23 | -24 | SVO |
| -28 | 10.5 | 2429556 | 1939-10-19 | 2429585 | 1939-11-17 | -29 | SVO |
| -27 | 11.1 | 2430024 | 1941-01-29 | 2430037 | 1941-02-11 | -13 | AAVSO |
| -26 | 11.7 | 2430458 | 1942-04-08 | 2430488 | 1942-05-08 | -30 | AAVSO |
| -25 | 10.6 | 2430955 | 1943-08-18 | 2430940 | 1943-08-03 | 15 | SVO |
| -24 | 10.7 | 2431392 | 1944-10-28 | 2431391 | 1944-10-27 | 1 | SVO |
| -23 | 10.6 | 2431833 | 1946-01-12 | 2431843 | 1946-01-22 | -10 | SVO |
| -22 | 10.5 | 2432277 | 1947-04-01 | 2432294 | 1947-04-18 | -17 | SVO |
| -21 | 11.4 | 2432740 | 1948-07-07 | 2432746 | 1948-07-13 | -6 | SVO |
| -20 | 11.1 | 2433193 | 1949-10-03 | 2433197 | 1949-10-07 | -4 | SVO |
| -19 | 10.2 | 2433640 | 1950-12-24 | 2433648 | 1951-01-01 | -8 | SVO |
| -18 | 9.8 | 2434071 | 1952-02-28 | 2434100 | 1952-03-28 | -29 | SVO |
| -17 | 10.6 | 2434549 | 1953-06-20 | 2434551 | 1953-06-22 | -2 | SVO |
| -16 | 10.1 | 2434998 | 1954-09-12 | 2435003 | 1954-09-17 | -5 | SVO |
| -15 | 11.3 | 2435451 | 1955-12-09 | 2435454 | 1955-12-12 | -3 | SVO |
| -14 | 11.9 | 2435968 | 1957-05-09 | 2435906 | 1957-03-08 | 62 | SVO |
| -13 | 11.7 | 2436398 | 1958-07-13 | 2436357 | 1958-06-02 | 41 | SVO |
| -12 | 11.5 | 2436834 | 1959-09-22 | 2436809 | 1959-08-28 | 25 | SVO |
| -11 | 11.3 | 2437290 | 1960-12-21 | 2437260 | 1960-11-21 | 30 | SVO |
| -10 | 10.9 | 2437747 | 1962-03-23 | 2437711 | 1962-02-15 | 36 | SVO |
| -9 | 11.2 | 2438204 | 1963-06-23 | 2438163 | 1963-05-13 | 41 | SVO |
| -8 | 9.4 | 2438656 | 1964-09-17 | 2438614 | 1964-08-06 | 42 | SVO |
| -7 | 9.9 | 2439123 | 1965-12-28 | 2439066 | 1965-11-01 | 57 | SVO |
| -6 | 9.7 | 2439579 | 1967-03-29 | 2439517 | 1967-01-26 | 62 | SVO |
| -5 | 10.0 | 2439992 | 1968-05-15 | 2439969 | 1968-04-22 | 23 | SVO |
| -4 | 10.8 | 2440459 | 1969-08-25 | 2440420 | 1969-07-17 | 39 | SVO |
| -3 | 12.1 | 2440913 | 1970-11-22 | 2440872 | 1970-10-12 | 41 | SVO |
| -2 | 11.2 | 2441381 | 1972-03-04 | 2441323 | 1972-01-06 | 58 | SVO |
| -1 | 11.4 | 2441827 | 1973-05-24 | 2441774 | 1973-04-01 | 53 | SVO |
| 0 | 9.9 | 2442250 | 1974-07-21 | 2442226 | 1974-06-27 | 24 | SVO |
| 1 | 10.6 | 2442708 | 1975-10-22 | 2442677 | 1975-09-21 | 31 | SVO |
| 2 | 10.4 | 2443168 | 1977-01-24 | 2443129 | 1976-12-16 | 39 | SVO |
| 3 | 9.6 | 2443592 | 1978-03-24 | 2443580 | 1978-03-12 | 12 | SVO |
| 4 | 10.3 | 2444035 | 1979-06-10 | 2444032 | 1979-06-07 | 3 | SVO |
| 5 | 11.5 | 2444508 | 1980-09-25 | 2444483 | 1980-08-31 | 25 | AAVSO |
| 6 | 10.7 | 2444941 | 1981-12-02 | 2444935 | 1981-11-26 | 6 | SVO |
| 7 | 10.8 | 2445400 | 1983-03-06 | 2445386 | 1983-02-20 | 14 | SVO |
| 8 | 11.2 | 2445836 | 1984-05-15 | 2445837 | 1984-05-16 | -1 | SVO |
| 9 | 10.6 | 2446287 | 1985-08-09 | 2446289 | 1985-08-11 | -2 | SVO |
| 10 | 11.1 | 2446727 | 1986-10-23 | 2446740 | 1986-11-05 | -13 | SVO |
| 11 | 11.1 | 2447170 | 1988-01-09 | 2447192 | 1988-01-31 | -22 | SVO |
| 12 | 11.7 | 2447612 | 1989-03-26 | 2447643 | 1989-04-26 | -31 | SVO |
| 13 | 2448096 | 1990-07-23 | 2448095 | 1990-07-22 | 1 | AAVSO | |
| 14 | 11.6 | 2448529 | 1991-09-29 | 2448546 | 1991-10-16 | -17 | SVO |
| 15 | 11.4 | 2448987 | 1992-12-30 | 2448998 | 1993-01-10 | -11 | SVO |
| 16 | 11.8 | 2449434 | 1994-03-22 | 2449449 | 1994-04-06 | -15 | SVO |
| 17 | 11.5 | 2449868 | 1995-05-30 | 2449900 | 1995-07-01 | -32 | SVO |
| 18 | 11.7 | 2450335 | 1996-09-08 | 2450352 | 1996-09-25 | -17 | SVO |
| 19 | 11.6 | 2450764 | 1997-11-11 | 2450803 | 1997-12-20 | -39 | SVO |
| 20 | 12.1 | 2451267 | 1999-03-29 | 2451255 | 1999-03-17 | 12 | SVO |
| 21 | 2451695 | 2000-05-30 | 2451706 | 2000-06-10 | -11 | AAVSO | |
| 22 | 9.6 | 2452159 | 2001-09-06 | 2452158 | 2001-09-05 | 1 | SVO |
| 23 | 9.2 | 2452612 | 2002-12-03 | 2452609 | 2002-11-30 | 3 | SVO |
| 24 | 8.5 | 2453036 | 2004-01-31 | 2453061 | 2004-02-25 | -25 | SVO |
| 25 | 8.2 | 2453496 | 2005-05-05 | 2453512 | 2005-05-21 | -16 | SVO |
| 26 | 9.2 | 2453936 | 2006-07-19 | 2453963 | 2006-08-15 | -27 | SVO |
| 27 | 8.3 | 2454403 | 2007-10-29 | 2454415 | 2007-11-10 | -12 | SVO |
| 28 | 9.0 | 2454857 | 2009-01-25 | 2454866 | 2009-02-03 | -9 | SVO |
| 29 | 9.8 | 2455334 | 2010-05-17 | 2455318 | 2010-05-01 | 16 | SVO |
| 30 | 9.8 | 2455795 | 2011-08-21 | 2455769 | 2011-07-26 | 26 | AAVSO |
| 31 | 11.4 | 2456231 | 2012-10-30 | 2456221 | 2012-10-20 | 10 | AAVSO |
| 32 | 11.4 | 2456685 | 2014-01-27 | 2456672 | 2014-01-14 | 13 | AAVSO |
| 33 | 10.2 | 2457105 | 2015-03-23 | 2457124 | 2015-04-11 | -19 | SVO |
| 34 | 2457555 | 2016-06-15 | 2457575 | 2016-07-05 | -20 | AAVSO | |
| 35 | 10.3 | 2458015 | 2017-09-18 | 2458026 | 2017-09-29 | -11 | SVO |
| 36 | 10.2 | 2458480 | 2018-12-27 | 2458478 | 2018-12-25 | 2 | SVO |
| 37 | 9.6 | 2458919 | 2020-03-10 | 2458929 | 2020-03-20 | -10 | SVO |
| 38 | 10.0 | 2459363 | 2021-05-28 | 2459381 | 2021-06-15 | -18 | SVO |
| 39 | 10.0 | 2459837 | 2022-09-14 | 2459832 | 2022-09-09 | 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. |