| E | Mag | O (JD) | O (dat) | C (JD) | C (Dat) | O-C | Source |
| -68 | 2409970 | 1886-03-04 | 2411734 | 1891-01-01 | -1764 | SVO | |
| -64 | 2412080 | 1891-12-13 | 2413599 | 1896-02-09 | -1519 | SVO | |
| -58 | 2415105 | 1900-03-26 | 2416396 | 1903-10-08 | -1291 | AnHar, 1909, vol 55, p 95 | |
| -56 | 2416130 | 1903-01-15 | 2417329 | 1906-04-28 | -1199 | AnHar, 1909, vol 55, p 95 | |
| -55 | 2416633 | 1904-06-01 | 2417795 | 1907-08-07 | -1162 | GuL, 1918, 1.1 | |
| -54 | 2417113 | 1905-09-24 | 2418261 | 1908-11-15 | -1148 | AAVSO | |
| -53 | 2417614 | 1907-02-07 | 2418727 | 1910-02-24 | -1113 | AAVSO | |
| -51 | 9.2 | 2418620 | 1909-11-09 | 2419660 | 1912-09-14 | -1040 | AAVSO |
| -49 | 2419604 | 1912-07-20 | 2420592 | 1915-04-04 | -988 | AAVSO | |
| -47 | 2420604 | 1915-04-16 | 2421525 | 1917-10-23 | -921 | AAVSO | |
| -46 | 2421112 | 1916-09-05 | 2421991 | 1919-02-01 | -879 | AAVSO | |
| -45 | 2421620 | 1918-01-26 | 2422457 | 1920-05-12 | -837 | AAVSO | |
| -44 | 2422105 | 1919-05-26 | 2422923 | 1921-08-21 | -818 | AAVSO | |
| -43 | 9.5 | 2422606 | 1920-10-08 | 2423389 | 1922-11-30 | -783 | AAVSO |
| -42 | 10.9 | 2423116 | 1922-03-02 | 2423856 | 1924-03-11 | -740 | AAVSO |
| -41 | 2423614 | 1923-07-13 | 2424322 | 1925-06-20 | -708 | AAVSO | |
| -40 | 11.1 | 2424118 | 1924-11-28 | 2424788 | 1926-09-29 | -670 | SVO |
| -39 | 10.1 | 2424616 | 1926-04-10 | 2425254 | 1928-01-08 | -638 | AAVSO |
| -38 | 2425113 | 1927-08-20 | 2425720 | 1929-04-18 | -607 | AAVSO | |
| -37 | 10.0 | 2425637 | 1929-01-25 | 2426187 | 1930-07-29 | -550 | SVO |
| -36 | 2426132 | 1930-06-04 | 2426653 | 1931-11-07 | -521 | AAVSO | |
| -35 | 10.7 | 2426611 | 1931-09-26 | 2427119 | 1933-02-15 | -508 | AAVSO |
| -34 | 10.3 | 2427100 | 1933-01-27 | 2427585 | 1934-05-27 | -485 | SVO |
| -33 | 10.1 | 2427583 | 1934-05-25 | 2428051 | 1935-09-05 | -468 | SVO |
| -32 | 10.3 | 2428066 | 1935-09-20 | 2428518 | 1936-12-15 | -452 | AAVSO |
| -31 | 10.7 | 2428566 | 1937-02-01 | 2428984 | 1938-03-26 | -418 | SVO |
| -30 | 10.4 | 2429052 | 1938-06-02 | 2429450 | 1939-07-05 | -398 | SVO |
| -29 | 10.7 | 2429533 | 1939-09-26 | 2429916 | 1940-10-13 | -383 | AAVSO |
| -28 | 10.6 | 2430022 | 1941-01-27 | 2430382 | 1942-01-22 | -360 | SVO |
| -27 | 10.3 | 2430488 | 1942-05-08 | 2430849 | 1943-05-04 | -361 | SVO |
| -26 | 10.6 | 2430977 | 1943-09-09 | 2431315 | 1944-08-12 | -338 | AAVSO |
| -25 | 10.5 | 2431474 | 1945-01-18 | 2431781 | 1945-11-21 | -307 | AAVSO |
| -24 | 10.0 | 2431952 | 1946-05-11 | 2432247 | 1947-03-02 | -295 | AAVSO |
| -23 | 2432430 | 1947-09-01 | 2432713 | 1948-06-10 | -283 | SVO | |
| -22 | 11.3 | 2432939 | 1949-01-22 | 2433180 | 1949-09-20 | -241 | SVO |
| -21 | 10.0 | 2433415 | 1950-05-13 | 2433646 | 1950-12-30 | -231 | AAVSO |
| -20 | 12.1 | 2433918 | 1951-09-28 | 2434112 | 1952-04-09 | -194 | AAVSO |
| -19 | 10.4 | 2434398 | 1953-01-20 | 2434578 | 1953-07-19 | -180 | SVO |
| -18 | 2434881 | 1954-05-18 | 2435044 | 1954-10-28 | -163 | AAVSO | |
| -17 | 12.2 | 2435380 | 1955-09-29 | 2435511 | 1956-02-07 | -131 | AAVSO |
| -16 | 11.0 | 2435870 | 1957-01-31 | 2435977 | 1957-05-18 | -107 | SVO |
| -15 | 2436339 | 1958-05-15 | 2436443 | 1958-08-27 | -104 | AAVSO | |
| -14 | 10.7 | 2436836 | 1959-09-24 | 2436909 | 1959-12-06 | -73 | AAVSO |
| -13 | 9.9 | 2437308 | 1961-01-08 | 2437375 | 1961-03-16 | -67 | SVO |
| -12 | 10.3 | 2437791 | 1962-05-06 | 2437842 | 1962-06-26 | -51 | AAVSO |
| -11 | 11.3 | 2438276 | 1963-09-03 | 2438308 | 1963-10-05 | -32 | AAVSO |
| -10 | 10.2 | 2438762 | 1965-01-01 | 2438774 | 1965-01-13 | -12 | SVO |
| -9 | 9.7 | 2439221 | 1966-04-05 | 2439240 | 1966-04-24 | -19 | SVO |
| -8 | 2439693 | 1967-07-21 | 2439706 | 1967-08-03 | -13 | AAVSO | |
| -7 | 9.8 | 2440167 | 1968-11-06 | 2440173 | 1968-11-12 | -6 | SVO |
| -6 | 11.2 | 2440631 | 1970-02-13 | 2440639 | 1970-02-21 | -8 | AAVSO |
| -5 | 2441104 | 1971-06-01 | 2441105 | 1971-06-02 | -1 | AAVSO | |
| -4 | 2441542 | 1972-08-12 | 2441571 | 1972-09-10 | -29 | AAVSO | |
| -3 | 10.3 | 2442036 | 1973-12-19 | 2442037 | 1973-12-20 | -1 | SVO |
| -2 | 10.8 | 2442501 | 1975-03-29 | 2442504 | 1975-04-01 | -3 | SVO |
| -1 | 10.6 | 2442973 | 1976-07-13 | 2442970 | 1976-07-10 | 3 | AAVSO |
| 0 | 11.6 | 2443432 | 1977-10-15 | 2443436 | 1977-10-19 | -4 | SVO |
| 1 | 10.8 | 2443872 | 1978-12-29 | 2443902 | 1979-01-28 | -30 | SVO |
| 2 | 10.3 | 2444341 | 1980-04-11 | 2444368 | 1980-05-08 | -27 | AAVSO |
| 3 | 10.9 | 2444822 | 1981-08-05 | 2444835 | 1981-08-18 | -13 | AAVSO |
| 4 | 10.3 | 2445265 | 1982-10-22 | 2445301 | 1982-11-27 | -36 | AAVSO |
| 5 | 10.4 | 2445722 | 1984-01-22 | 2445767 | 1984-03-07 | -45 | SVO |
| 6 | 10.1 | 2446188 | 1985-05-02 | 2446233 | 1985-06-16 | -45 | SVO |
| 7 | 10.6 | 2446664 | 1986-08-21 | 2446699 | 1986-09-25 | -35 | SVO |
| 8 | 9.9 | 2447126 | 1987-11-26 | 2447166 | 1988-01-05 | -40 | SVO |
| 9 | 11.2 | 2447576 | 1989-02-18 | 2447632 | 1989-04-15 | -56 | SVO |
| 10 | 10.3 | 2448047 | 1990-06-04 | 2448098 | 1990-07-25 | -51 | SVO |
| 11 | 2448529 | 1991-09-29 | 2448564 | 1991-11-03 | -35 | AAVSO | |
| 12 | 10.3 | 2448969 | 1992-12-12 | 2449030 | 1993-02-11 | -61 | SVO |
| 13 | 10.5 | 2449437 | 1994-03-25 | 2449497 | 1994-05-24 | -60 | SVO |
| 14 | 10.6 | 2449913 | 1995-07-14 | 2449963 | 1995-09-02 | -50 | SVO |
| 15 | 10.3 | 2450352 | 1996-09-25 | 2450429 | 1996-12-11 | -77 | SVO |
| 16 | 11.1 | 2450811 | 1997-12-28 | 2450895 | 1998-03-22 | -84 | SVO |
| 17 | 11.0 | 2451280 | 1999-04-11 | 2451361 | 1999-07-01 | -81 | SVO |
| 18 | 10.1 | 2451685 | 2000-05-20 | 2451828 | 2000-10-10 | -143 | SVO |
| 19 | 11.2 | 2452176 | 2001-09-23 | 2452294 | 2002-01-19 | -118 | SVO |
| 20 | 10.9 | 2452618 | 2002-12-09 | 2452760 | 2003-04-30 | -142 | SVO |
| 21 | 10.3 | 2453060 | 2004-02-24 | 2453226 | 2004-08-08 | -166 | SVO |
| 22 | 10.7 | 2453503 | 2005-05-12 | 2453692 | 2005-11-17 | -189 | SVO |
| 23 | 2453942 | 2006-07-25 | 2454159 | 2007-02-27 | -217 | AAVSO | |
| 24 | 10.5 | 2454399 | 2007-10-25 | 2454625 | 2008-06-07 | -226 | SVO |
| 25 | 10.4 | 2454835 | 2009-01-03 | 2455091 | 2009-09-16 | -256 | SVO |
| 26 | 10.5 | 2455276 | 2010-03-20 | 2455557 | 2010-12-26 | -281 | SVO |
| 27 | 10.6 | 2455740 | 2011-06-27 | 2456023 | 2012-04-05 | -283 | SVO |
| 28 | 10.8 | 2456174 | 2012-09-03 | 2456490 | 2013-07-16 | -316 | SVO |
| 29 | 10.3 | 2456633 | 2013-12-06 | 2456956 | 2014-10-25 | -323 | SVO |
| 30 | 10.4 | 2457080 | 2015-02-26 | 2457422 | 2016-02-03 | -342 | SVO |
| 31 | 10.4 | 2457522 | 2016-05-13 | 2457888 | 2017-05-14 | -366 | SVO |
| 32 | 10.2 | 2457972 | 2017-08-06 | 2458354 | 2018-08-23 | -382 | SVO |
| 33 | 10.8 | 2458439 | 2018-11-16 | 2458821 | 2019-12-03 | -382 | SVO |
| 34 | 10.1 | 2458880 | 2020-01-31 | 2459287 | 2021-03-13 | -407 | SVO |
| 35 | 10.2 | 2459336 | 2021-05-01 | 2459753 | 2022-06-22 | -417 | SVO |
| 36 | 10.1 | 2459765 | 2022-07-04 | 2460219 | 2023-10-01 | -454 | 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. |