| E | Mag | O (JD) | O (dat) | C (JD) | C (Dat) | O-C | Source |
| -81 | 2415530 | 1901-05-25 | 2415535 | 1901-05-30 | -5 | SVO | |
| -80 | 2415987 | 1902-08-25 | 2416004 | 1902-09-11 | -17 | GuL, 1920, 1.2 | |
| -79 | 2416480 | 1903-12-31 | 2416473 | 1903-12-24 | 7 | AnHar, 1909, vol 55, p 95 | |
| -77 | 2417434 | 1906-08-11 | 2417412 | 1906-07-20 | 22 | AAVSO | |
| -76 | 9.0 | 2417904 | 1907-11-24 | 2417881 | 1907-11-01 | 23 | AAVSO |
| -75 | 2418348 | 1909-02-10 | 2418350 | 1909-02-12 | -2 | AAVSO | |
| -73 | 2419310 | 1911-09-30 | 2419288 | 1911-09-08 | 22 | SVO | |
| -70 | 10.4 | 2420738 | 1915-08-28 | 2420696 | 1915-07-17 | 42 | AAVSO |
| -69 | 9.7 | 2421204 | 1916-12-06 | 2421165 | 1916-10-28 | 39 | AAVSO |
| -68 | 2421696 | 1918-04-12 | 2421634 | 1918-02-09 | 62 | AAVSO | |
| -67 | 2422132 | 1919-06-22 | 2422104 | 1919-05-25 | 28 | AAVSO | |
| -66 | 9.7 | 2422583 | 1920-09-15 | 2422573 | 1920-09-05 | 10 | SVO |
| -65 | 8.8 | 2423058 | 1922-01-03 | 2423042 | 1921-12-18 | 16 | AAVSO |
| -64 | 10.9 | 2423526 | 1923-04-16 | 2423511 | 1923-04-01 | 15 | AAVSO |
| -63 | 10.6 | 2423999 | 1924-08-01 | 2423980 | 1924-07-13 | 19 | AAVSO |
| -62 | 8.8 | 2424435 | 1925-10-11 | 2424450 | 1925-10-26 | -15 | AAVSO |
| -61 | 2424890 | 1927-01-09 | 2424919 | 1927-02-07 | -29 | AAVSO | |
| -60 | 2425347 | 1928-04-10 | 2425388 | 1928-05-21 | -41 | AAVSO | |
| -59 | 9.9 | 2425806 | 1929-07-13 | 2425857 | 1929-09-02 | -51 | SVO |
| -58 | 9.9 | 2426264 | 1930-10-14 | 2426326 | 1930-12-15 | -62 | SVO |
| -57 | 9.5 | 2426761 | 1932-02-23 | 2426796 | 1932-03-29 | -35 | SVO |
| -56 | 9.9 | 2427203 | 1933-05-10 | 2427265 | 1933-07-11 | -62 | SVO |
| -55 | 9.7 | 2427687 | 1934-09-06 | 2427734 | 1934-10-23 | -47 | AAVSO |
| -54 | 9.9 | 2428165 | 1935-12-28 | 2428203 | 1936-02-04 | -38 | AAVSO |
| -53 | 2428627 | 1937-04-03 | 2428672 | 1937-05-18 | -45 | AAVSO | |
| -52 | 10.4 | 2429116 | 1938-08-05 | 2429142 | 1938-08-31 | -26 | SVO |
| -51 | 2429582 | 1939-11-14 | 2429611 | 1939-12-13 | -29 | AAVSO | |
| -50 | 2430075 | 1941-03-21 | 2430080 | 1941-03-26 | -5 | AAVSO | |
| -49 | 9.8 | 2430561 | 1942-07-20 | 2430549 | 1942-07-08 | 12 | AAVSO |
| -48 | 10.0 | 2431040 | 1943-11-11 | 2431018 | 1943-10-20 | 22 | AAVSO |
| -46 | 10.0 | 2431966 | 1946-05-25 | 2431957 | 1946-05-16 | 9 | AAVSO |
| -45 | 11.4 | 2432466 | 1947-10-07 | 2432426 | 1947-08-28 | 40 | AAVSO |
| -44 | 2432936 | 1949-01-19 | 2432895 | 1948-12-09 | 41 | AAVSO | |
| -43 | 2433364 | 1950-03-23 | 2433364 | 1950-03-23 | 0 | AAVSO | |
| -42 | 11.2 | 2433854 | 1951-07-26 | 2433834 | 1951-07-06 | 20 | AAVSO |
| -41 | 10.2 | 2434328 | 1952-11-11 | 2434303 | 1952-10-17 | 25 | SVO |
| -40 | 2434786 | 1954-02-12 | 2434772 | 1954-01-29 | 14 | AAVSO | |
| -39 | 2435226 | 1955-04-28 | 2435241 | 1955-05-13 | -15 | AAVSO | |
| -38 | 11.2 | 2435693 | 1956-08-07 | 2435710 | 1956-08-24 | -17 | SVO |
| -37 | 11.7 | 2436155 | 1957-11-12 | 2436180 | 1957-12-07 | -25 | AAVSO |
| -36 | 2436616 | 1959-02-16 | 2436649 | 1959-03-21 | -33 | AAVSO | |
| -35 | 11.5 | 2437083 | 1960-05-28 | 2437118 | 1960-07-02 | -35 | AAVSO |
| -34 | 11.9 | 2437540 | 1961-08-28 | 2437587 | 1961-10-14 | -47 | SVO |
| -33 | 10.9 | 2438027 | 1962-12-28 | 2438056 | 1963-01-26 | -29 | SVO |
| -32 | 12.3 | 2438473 | 1964-03-18 | 2438526 | 1964-05-10 | -53 | AAVSO |
| -31 | 10.7 | 2438969 | 1965-07-27 | 2438995 | 1965-08-22 | -26 | SVO |
| -30 | 2439410 | 1966-10-11 | 2439464 | 1966-12-04 | -54 | AAVSO | |
| -29 | 2439870 | 1968-01-14 | 2439933 | 1968-03-17 | -63 | AAVSO | |
| -28 | 11.4 | 2440373 | 1969-05-31 | 2440402 | 1969-06-29 | -29 | AAVSO |
| -27 | 11.3 | 2440825 | 1970-08-26 | 2440872 | 1970-10-12 | -47 | SVO |
| -26 | 2441294 | 1971-12-08 | 2441341 | 1972-01-24 | -47 | AAVSO | |
| -25 | 2441756 | 1973-03-14 | 2441810 | 1973-05-07 | -54 | AAVSO | |
| -24 | 12.4 | 2442253 | 1974-07-24 | 2442279 | 1974-08-19 | -26 | AAVSO |
| -23 | 10.7 | 2442723 | 1975-11-06 | 2442748 | 1975-12-01 | -25 | SVO |
| -22 | 9.7 | 2443164 | 1977-01-20 | 2443218 | 1977-03-15 | -54 | SVO |
| -21 | 10.2 | 2443673 | 1978-06-13 | 2443687 | 1978-06-27 | -14 | AAVSO |
| -20 | 10.4 | 2444137 | 1979-09-20 | 2444156 | 1979-10-09 | -19 | SVO |
| -19 | 10.5 | 2444608 | 1981-01-03 | 2444625 | 1981-01-20 | -17 | AAVSO |
| -18 | 10.7 | 2445084 | 1982-04-24 | 2445094 | 1982-05-04 | -10 | AAVSO |
| -17 | 11.3 | 2445552 | 1983-08-05 | 2445564 | 1983-08-17 | -12 | AAVSO |
| -16 | 10.8 | 2446021 | 1984-11-16 | 2446033 | 1984-11-28 | -12 | AAVSO |
| -15 | 12.2 | 2446487 | 1986-02-25 | 2446502 | 1986-03-12 | -15 | AAVSO |
| -14 | 9.9 | 2446958 | 1987-06-11 | 2446971 | 1987-06-24 | -13 | SVO |
| -13 | 10.9 | 2447436 | 1988-10-01 | 2447440 | 1988-10-05 | -4 | SVO |
| -12 | 10.3 | 2447898 | 1990-01-06 | 2447910 | 1990-01-18 | -12 | SVO |
| -11 | 9.8 | 2448367 | 1991-04-20 | 2448379 | 1991-05-02 | -12 | SVO |
| -10 | 9.8 | 2448819 | 1992-07-15 | 2448848 | 1992-08-13 | -29 | SVO |
| -9 | 9.8 | 2449300 | 1993-11-08 | 2449317 | 1993-11-25 | -17 | SVO |
| -8 | 10.6 | 2449793 | 1995-03-16 | 2449786 | 1995-03-09 | 7 | SVO |
| -7 | 10.1 | 2450246 | 1996-06-11 | 2450256 | 1996-06-21 | -10 | SVO |
| -6 | 9.8 | 2450720 | 1997-09-28 | 2450725 | 1997-10-03 | -5 | SVO |
| -5 | 9.7 | 2451186 | 1999-01-07 | 2451194 | 1999-01-15 | -8 | SVO |
| -4 | 2451658 | 2000-04-23 | 2451663 | 2000-04-28 | -5 | AAVSO | |
| -3 | 9.8 | 2452144 | 2001-08-22 | 2452132 | 2001-08-10 | 12 | SVO |
| -2 | 9.7 | 2452609 | 2002-11-30 | 2452602 | 2002-11-23 | 7 | SVO |
| -1 | 2453079 | 2004-03-14 | 2453071 | 2004-03-06 | 8 | AAVSO | |
| 0 | 9.4 | 2453540 | 2005-06-18 | 2453540 | 2005-06-18 | 0 | SVO |
| 1 | 10.6 | 2454016 | 2006-10-07 | 2454009 | 2006-09-30 | 7 | SVO |
| 2 | 9.5 | 2454483 | 2008-01-17 | 2454478 | 2008-01-12 | 5 | SVO |
| 3 | 10.7 | 2454951 | 2009-04-29 | 2454948 | 2009-04-26 | 3 | SVO |
| 4 | 9.8 | 2455421 | 2010-08-12 | 2455417 | 2010-08-08 | 4 | SVO |
| 5 | 11.7 | 2455896 | 2011-11-30 | 2455886 | 2011-11-20 | 10 | AAVSO |
| 6 | 9.6 | 2456374 | 2013-03-22 | 2456355 | 2013-03-03 | 19 | AAVSO |
| 7 | 11.7 | 2456841 | 2014-07-02 | 2456824 | 2014-06-15 | 17 | AAVSO |
| 8 | 9.7 | 2457297 | 2015-10-01 | 2457294 | 2015-09-28 | 3 | SVO |
| 9 | 10.6 | 2457775 | 2017-01-21 | 2457763 | 2017-01-09 | 12 | SVO |
| 10 | 10.7 | 2458258 | 2018-05-19 | 2458232 | 2018-04-23 | 26 | SVO |
| 11 | 9.4 | 2458716 | 2019-08-20 | 2458701 | 2019-08-05 | 15 | SVO |
| 12 | 11.8 | 2459181 | 2020-11-27 | 2459170 | 2020-11-16 | 11 | SVO |
| 13 | 10.6 | 2459659 | 2022-03-20 | 2459640 | 2022-03-01 | 19 | 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. |