| E | Mag | O (JD) | O (dat) | C (JD) | C (Dat) | O-C | Source |
| -51 | 2415665 | 1901-10-07 | 2415606 | 1901-08-09 | 59 | SVO | |
| -50 | 2416196 | 1903-03-22 | 2416171 | 1903-02-25 | 25 | AnHar, 1909, vol 55, p 95 | |
| -49 | 2416762 | 1904-10-08 | 2416736 | 1904-09-12 | 26 | AnHar, 1909, vol 55, p 95 | |
| -48 | 2417313 | 1906-04-12 | 2417301 | 1906-03-31 | 12 | GuL, 1920, 1.2 | |
| -47 | 2417860 | 1907-10-11 | 2417866 | 1907-10-17 | -6 | GuL, 1920, 1.2 | |
| -45 | 2418975 | 1910-10-30 | 2418996 | 1910-11-20 | -21 | SVO | |
| -44 | 2419545 | 1912-05-22 | 2419561 | 1912-06-07 | -16 | SVO | |
| -43 | 2420110 | 1913-12-08 | 2420126 | 1913-12-24 | -16 | SVO | |
| -42 | 2420660 | 1915-06-11 | 2420691 | 1915-07-12 | -31 | SVO | |
| -41 | 2421230 | 1917-01-01 | 2421256 | 1917-01-27 | -26 | SVO | |
| -38 | 2422910 | 1921-08-08 | 2422951 | 1921-09-18 | -41 | SVO | |
| -35 | 9.8 | 2424621 | 1926-04-15 | 2424646 | 1926-05-10 | -25 | AAVSO |
| -34 | 10.2 | 2425180 | 1927-10-26 | 2425211 | 1927-11-26 | -31 | AAVSO |
| -33 | 2425740 | 1929-05-08 | 2425776 | 1929-06-13 | -36 | AAVSO | |
| -32 | 9.8 | 2426271 | 1930-10-21 | 2426341 | 1930-12-30 | -70 | AAVSO |
| -31 | 9.9 | 2426829 | 1932-05-01 | 2426906 | 1932-07-17 | -77 | AAVSO |
| -30 | 10.0 | 2427407 | 1933-11-30 | 2427471 | 1934-02-02 | -64 | AAVSO |
| -29 | 9.7 | 2427967 | 1935-06-13 | 2428036 | 1935-08-21 | -69 | AAVSO |
| -28 | 2428528 | 1936-12-25 | 2428601 | 1937-03-08 | -73 | AAVSO | |
| -27 | 10.4 | 2429088 | 1938-07-08 | 2429166 | 1938-09-24 | -78 | AAVSO |
| -26 | 2429645 | 1940-01-16 | 2429731 | 1940-04-11 | -86 | AAVSO | |
| -25 | 9.9 | 2430196 | 1941-07-20 | 2430296 | 1941-10-28 | -100 | SVO |
| -24 | 2430769 | 1943-02-13 | 2430861 | 1943-05-16 | -92 | AAVSO | |
| -23 | 9.2 | 2431325 | 1944-08-22 | 2431426 | 1944-12-01 | -101 | SVO |
| -22 | 2431890 | 1946-03-10 | 2431991 | 1946-06-19 | -101 | AAVSO | |
| -21 | 9.9 | 2432438 | 1947-09-09 | 2432556 | 1948-01-05 | -118 | SVO |
| -20 | 8.2 | 2433011 | 1949-04-04 | 2433121 | 1949-07-23 | -110 | AAVSO |
| -19 | 9.1 | 2433578 | 1950-10-23 | 2433686 | 1951-02-08 | -108 | SVO |
| -18 | 10.9 | 2434147 | 1952-05-14 | 2434251 | 1952-08-26 | -104 | AAVSO |
| -17 | 8.9 | 2434740 | 1953-12-28 | 2434816 | 1954-03-14 | -76 | SVO |
| -16 | 9.7 | 2435308 | 1955-07-19 | 2435381 | 1955-09-30 | -73 | SVO |
| -15 | 9.4 | 2435905 | 1957-03-07 | 2435946 | 1957-04-17 | -41 | AAVSO |
| -14 | 10.3 | 2436489 | 1958-10-12 | 2436511 | 1958-11-03 | -22 | SVO |
| -13 | 10.2 | 2437057 | 1960-05-02 | 2437076 | 1960-05-21 | -19 | AAVSO |
| -12 | 9.6 | 2437637 | 1961-12-03 | 2437641 | 1961-12-07 | -4 | SVO |
| -11 | 10.1 | 2438208 | 1963-06-27 | 2438206 | 1963-06-25 | 2 | SVO |
| -10 | 9.4 | 2438779 | 1965-01-18 | 2438771 | 1965-01-10 | 8 | SVO |
| -9 | 9.8 | 2439352 | 1966-08-14 | 2439336 | 1966-07-29 | 16 | SVO |
| -8 | 2439880 | 1968-01-24 | 2439901 | 1968-02-14 | -21 | AAVSO | |
| -7 | 10.8 | 2440484 | 1969-09-19 | 2440466 | 1969-09-01 | 18 | SVO |
| -6 | 2441018 | 1971-03-07 | 2441031 | 1971-03-20 | -13 | AAVSO | |
| -5 | 10.1 | 2441603 | 1972-10-12 | 2441596 | 1972-10-05 | 7 | SVO |
| -4 | 10.2 | 2442156 | 1974-04-18 | 2442161 | 1974-04-23 | -5 | AAVSO |
| -3 | 10.8 | 2442723 | 1975-11-06 | 2442726 | 1975-11-09 | -3 | SVO |
| -2 | 10.7 | 2443290 | 1977-05-26 | 2443291 | 1977-05-27 | -1 | SVO |
| -1 | 11.1 | 2443862 | 1978-12-19 | 2443856 | 1978-12-13 | 6 | SVO |
| 0 | 10.0 | 2444429 | 1980-07-08 | 2444421 | 1980-06-30 | 8 | SVO |
| 1 | 10.9 | 2444991 | 1982-01-21 | 2444986 | 1982-01-16 | 5 | SVO |
| 2 | 10.9 | 2445572 | 1983-08-25 | 2445551 | 1983-08-04 | 21 | SVO |
| 3 | 10.5 | 2446141 | 1985-03-16 | 2446116 | 1985-02-19 | 25 | SVO |
| 4 | 10.0 | 2446705 | 1986-10-01 | 2446681 | 1986-09-07 | 24 | SVO |
| 5 | 2447256 | 1988-04-04 | 2447246 | 1988-03-25 | 10 | AAVSO | |
| 6 | 11.3 | 2447817 | 1989-10-17 | 2447811 | 1989-10-11 | 6 | SVO |
| 7 | 9.4 | 2448387 | 1991-05-10 | 2448376 | 1991-04-29 | 11 | SVO |
| 8 | 11.3 | 2448959 | 1992-12-02 | 2448941 | 1992-11-14 | 18 | SVO |
| 9 | 10.4 | 2449541 | 1994-07-07 | 2449506 | 1994-06-02 | 35 | SVO |
| 10 | 10.7 | 2450099 | 1996-01-16 | 2450071 | 1995-12-19 | 28 | SVO |
| 11 | 10.0 | 2450660 | 1997-07-30 | 2450636 | 1997-07-06 | 24 | SVO |
| 12 | 9.8 | 2451227 | 1999-02-17 | 2451201 | 1999-01-22 | 26 | SVO |
| 13 | 10.5 | 2451795 | 2000-09-07 | 2451766 | 2000-08-09 | 29 | SVO |
| 14 | 2452367 | 2002-04-02 | 2452331 | 2002-02-25 | 36 | AAVSO | |
| 15 | 9.8 | 2452945 | 2003-11-01 | 2452896 | 2003-09-13 | 49 | SVO |
| 16 | 2453511 | 2005-05-20 | 2453461 | 2005-03-31 | 50 | AAVSO | |
| 17 | 10.2 | 2454080 | 2006-12-10 | 2454026 | 2006-10-17 | 54 | SVO |
| 18 | 10.7 | 2454664 | 2008-07-16 | 2454591 | 2008-05-04 | 73 | SVO |
| 19 | 10.4 | 2455248 | 2010-02-20 | 2455156 | 2009-11-20 | 92 | SVO |
| 20 | 10.8 | 2455820 | 2011-09-15 | 2455721 | 2011-06-08 | 99 | SVO |
| 21 | 11.7 | 2456390 | 2013-04-07 | 2456286 | 2012-12-24 | 104 | SVO |
| 22 | 10.7 | 2456976 | 2014-11-14 | 2456851 | 2014-07-12 | 125 | SVO |
| 23 | 11.2 | 2457548 | 2016-06-08 | 2457416 | 2016-01-28 | 132 | SVO |
| 24 | 10.4 | 2458140 | 2018-01-21 | 2457981 | 2017-08-15 | 159 | SVO |
| 25 | 11.7 | 2458714 | 2019-08-18 | 2458546 | 2019-03-03 | 168 | SVO |
| 26 | 11.2 | 2459291 | 2021-03-17 | 2459111 | 2020-09-18 | 180 | SVO |
| 27 | 11.7 | 2459867 | 2022-10-14 | 2459676 | 2022-04-06 | 191 | 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. |