| E | Mag | O (JD) | O (dat) | C (JD) | C (Dat) | O-C | Source |
| -90 | 2409970 | 1886-03-04 | 2412918 | 1894-03-30 | -2948 | SVO | |
| -86 | 2412080 | 1891-12-13 | 2414702 | 1899-02-16 | -2622 | SVO | |
| -80 | 2415105 | 1900-03-26 | 2417378 | 1906-06-16 | -2273 | AnHar, 1909, vol 55, p 95 | |
| -78 | 2416130 | 1903-01-15 | 2418270 | 1908-11-24 | -2140 | AnHar, 1909, vol 55, p 95 | |
| -77 | 2416633 | 1904-06-01 | 2418716 | 1910-02-13 | -2083 | GuL, 1918, 1.1 | |
| -76 | 2417113 | 1905-09-24 | 2419162 | 1911-05-05 | -2049 | AAVSO | |
| -75 | 2417614 | 1907-02-07 | 2419608 | 1912-07-24 | -1994 | AAVSO | |
| -73 | 9.2 | 2418620 | 1909-11-09 | 2420500 | 1915-01-02 | -1880 | AAVSO |
| -71 | 2419604 | 1912-07-20 | 2421392 | 1917-06-12 | -1788 | AAVSO | |
| -69 | 2420604 | 1915-04-16 | 2422284 | 1919-11-21 | -1680 | AAVSO | |
| -68 | 2421112 | 1916-09-05 | 2422730 | 1921-02-09 | -1618 | AAVSO | |
| -67 | 2421620 | 1918-01-26 | 2423176 | 1922-05-01 | -1556 | AAVSO | |
| -66 | 2422105 | 1919-05-26 | 2423622 | 1923-07-21 | -1517 | AAVSO | |
| -65 | 9.5 | 2422606 | 1920-10-08 | 2424068 | 1924-10-09 | -1462 | AAVSO |
| -64 | 10.9 | 2423116 | 1922-03-02 | 2424514 | 1925-12-29 | -1398 | AAVSO |
| -63 | 2423614 | 1923-07-13 | 2424960 | 1927-03-20 | -1346 | AAVSO | |
| -62 | 11.1 | 2424118 | 1924-11-28 | 2425406 | 1928-06-08 | -1288 | SVO |
| -61 | 10.1 | 2424616 | 1926-04-10 | 2425852 | 1929-08-28 | -1236 | AAVSO |
| -60 | 2425113 | 1927-08-20 | 2426298 | 1930-11-17 | -1185 | AAVSO | |
| -59 | 10.0 | 2425637 | 1929-01-25 | 2426744 | 1932-02-06 | -1107 | SVO |
| -58 | 2426132 | 1930-06-04 | 2427190 | 1933-04-27 | -1058 | AAVSO | |
| -57 | 10.7 | 2426611 | 1931-09-26 | 2427636 | 1934-07-17 | -1025 | AAVSO |
| -56 | 10.3 | 2427100 | 1933-01-27 | 2428082 | 1935-10-06 | -982 | SVO |
| -55 | 10.1 | 2427583 | 1934-05-25 | 2428528 | 1936-12-25 | -945 | SVO |
| -54 | 10.3 | 2428066 | 1935-09-20 | 2428974 | 1938-03-16 | -908 | AAVSO |
| -53 | 10.7 | 2428566 | 1937-02-01 | 2429420 | 1939-06-05 | -854 | SVO |
| -52 | 10.4 | 2429052 | 1938-06-02 | 2429866 | 1940-08-24 | -814 | SVO |
| -51 | 10.7 | 2429533 | 1939-09-26 | 2430312 | 1941-11-13 | -779 | AAVSO |
| -50 | 10.6 | 2430022 | 1941-01-27 | 2430758 | 1943-02-02 | -736 | SVO |
| -49 | 10.3 | 2430488 | 1942-05-08 | 2431204 | 1944-04-23 | -716 | SVO |
| -48 | 10.6 | 2430977 | 1943-09-09 | 2431650 | 1945-07-13 | -673 | AAVSO |
| -47 | 10.5 | 2431474 | 1945-01-18 | 2432096 | 1946-10-02 | -622 | AAVSO |
| -46 | 10.0 | 2431952 | 1946-05-11 | 2432542 | 1947-12-22 | -590 | AAVSO |
| -45 | 2432430 | 1947-09-01 | 2432988 | 1949-03-12 | -558 | SVO | |
| -44 | 11.3 | 2432939 | 1949-01-22 | 2433434 | 1950-06-01 | -495 | SVO |
| -43 | 10.0 | 2433415 | 1950-05-13 | 2433880 | 1951-08-21 | -465 | AAVSO |
| -42 | 12.1 | 2433918 | 1951-09-28 | 2434326 | 1952-11-09 | -408 | AAVSO |
| -41 | 10.4 | 2434398 | 1953-01-20 | 2434772 | 1954-01-29 | -374 | SVO |
| -40 | 2434881 | 1954-05-18 | 2435218 | 1955-04-20 | -337 | AAVSO | |
| -39 | 12.2 | 2435380 | 1955-09-29 | 2435664 | 1956-07-09 | -284 | AAVSO |
| -38 | 11.0 | 2435870 | 1957-01-31 | 2436110 | 1957-09-28 | -240 | SVO |
| -37 | 2436339 | 1958-05-15 | 2436556 | 1958-12-18 | -217 | AAVSO | |
| -36 | 10.7 | 2436836 | 1959-09-24 | 2437002 | 1960-03-08 | -166 | AAVSO |
| -35 | 9.9 | 2437308 | 1961-01-08 | 2437448 | 1961-05-28 | -140 | SVO |
| -34 | 10.3 | 2437791 | 1962-05-06 | 2437894 | 1962-08-17 | -103 | AAVSO |
| -33 | 11.3 | 2438276 | 1963-09-03 | 2438340 | 1963-11-06 | -64 | AAVSO |
| -32 | 10.2 | 2438762 | 1965-01-01 | 2438786 | 1965-01-25 | -24 | SVO |
| -31 | 9.7 | 2439221 | 1966-04-05 | 2439232 | 1966-04-16 | -11 | SVO |
| -30 | 2439693 | 1967-07-21 | 2439678 | 1967-07-06 | 15 | AAVSO | |
| -29 | 9.8 | 2440167 | 1968-11-06 | 2440124 | 1968-09-24 | 43 | SVO |
| -28 | 11.2 | 2440631 | 1970-02-13 | 2440570 | 1969-12-14 | 61 | AAVSO |
| -27 | 2441104 | 1971-06-01 | 2441016 | 1971-03-05 | 88 | AAVSO | |
| -26 | 2441542 | 1972-08-12 | 2441462 | 1972-05-24 | 80 | AAVSO | |
| -25 | 10.3 | 2442036 | 1973-12-19 | 2441908 | 1973-08-13 | 128 | SVO |
| -24 | 10.8 | 2442501 | 1975-03-29 | 2442354 | 1974-11-02 | 147 | SVO |
| -23 | 10.6 | 2442973 | 1976-07-13 | 2442800 | 1976-01-22 | 173 | AAVSO |
| -22 | 11.6 | 2443432 | 1977-10-15 | 2443246 | 1977-04-12 | 186 | SVO |
| -21 | 10.8 | 2443872 | 1978-12-29 | 2443692 | 1978-07-02 | 180 | SVO |
| -20 | 10.3 | 2444341 | 1980-04-11 | 2444138 | 1979-09-21 | 203 | AAVSO |
| -19 | 10.9 | 2444822 | 1981-08-05 | 2444584 | 1980-12-10 | 238 | AAVSO |
| -18 | 10.3 | 2445265 | 1982-10-22 | 2445030 | 1982-03-01 | 235 | AAVSO |
| -17 | 10.4 | 2445722 | 1984-01-22 | 2445476 | 1983-05-21 | 246 | SVO |
| -16 | 10.1 | 2446188 | 1985-05-02 | 2445922 | 1984-08-09 | 266 | SVO |
| -15 | 10.6 | 2446664 | 1986-08-21 | 2446368 | 1985-10-29 | 296 | SVO |
| -14 | 9.9 | 2447126 | 1987-11-26 | 2446814 | 1987-01-18 | 312 | SVO |
| -13 | 11.2 | 2447576 | 1989-02-18 | 2447260 | 1988-04-08 | 316 | SVO |
| -12 | 10.3 | 2448047 | 1990-06-04 | 2447706 | 1989-06-28 | 341 | SVO |
| -11 | 2448529 | 1991-09-29 | 2448152 | 1990-09-17 | 377 | AAVSO | |
| -10 | 10.3 | 2448969 | 1992-12-12 | 2448598 | 1991-12-07 | 371 | SVO |
| -9 | 10.5 | 2449437 | 1994-03-25 | 2449044 | 1993-02-25 | 393 | SVO |
| -8 | 10.6 | 2449913 | 1995-07-14 | 2449490 | 1994-05-17 | 423 | SVO |
| -7 | 10.3 | 2450352 | 1996-09-25 | 2449936 | 1995-08-06 | 416 | SVO |
| -6 | 11.1 | 2450811 | 1997-12-28 | 2450382 | 1996-10-25 | 429 | SVO |
| -5 | 11.0 | 2451280 | 1999-04-11 | 2450828 | 1998-01-14 | 452 | SVO |
| -4 | 10.1 | 2451685 | 2000-05-20 | 2451274 | 1999-04-05 | 411 | SVO |
| -3 | 11.2 | 2452176 | 2001-09-23 | 2451720 | 2000-06-24 | 456 | SVO |
| -2 | 10.9 | 2452618 | 2002-12-09 | 2452166 | 2001-09-13 | 452 | SVO |
| -1 | 10.3 | 2453060 | 2004-02-24 | 2452612 | 2002-12-03 | 448 | SVO |
| 0 | 10.7 | 2453503 | 2005-05-12 | 2453058 | 2004-02-22 | 445 | SVO |
| 1 | 2453942 | 2006-07-25 | 2453504 | 2005-05-13 | 438 | AAVSO | |
| 2 | 10.5 | 2454399 | 2007-10-25 | 2453950 | 2006-08-02 | 449 | SVO |
| 3 | 10.4 | 2454835 | 2009-01-03 | 2454396 | 2007-10-22 | 439 | SVO |
| 4 | 10.5 | 2455276 | 2010-03-20 | 2454842 | 2009-01-10 | 434 | SVO |
| 5 | 10.6 | 2455740 | 2011-06-27 | 2455288 | 2010-04-01 | 452 | SVO |
| 6 | 10.8 | 2456174 | 2012-09-03 | 2455734 | 2011-06-21 | 440 | SVO |
| 7 | 10.3 | 2456633 | 2013-12-06 | 2456180 | 2012-09-09 | 453 | SVO |
| 8 | 10.4 | 2457080 | 2015-02-26 | 2456626 | 2013-11-29 | 454 | SVO |
| 9 | 10.4 | 2457522 | 2016-05-13 | 2457072 | 2015-02-18 | 450 | SVO |
| 10 | 10.2 | 2457972 | 2017-08-06 | 2457518 | 2016-05-09 | 454 | SVO |
| 11 | 10.8 | 2458439 | 2018-11-16 | 2457964 | 2017-07-29 | 475 | SVO |
| 12 | 10.1 | 2458880 | 2020-01-31 | 2458410 | 2018-10-18 | 470 | SVO |
| 13 | 10.2 | 2459336 | 2021-05-01 | 2458856 | 2020-01-07 | 480 | SVO |
| 14 | 10.1 | 2459765 | 2022-07-04 | 2459302 | 2021-03-28 | 463 | 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. |