| E | Mag | O (JD) | O (dat) | C (JD) | C (Dat) | O-C | Source |
| -71 | 2415845 | 1902-04-05 | 2415848 | 1902-04-08 | -3 | AnHar, 1909, vol 55, p 95 | |
| -70 | 2416279 | 1903-06-13 | 2416262 | 1903-05-27 | 17 | AnHar, 1909, vol 55, p 95 | |
| -69 | 2416712 | 1904-08-19 | 2416675 | 1904-07-13 | 37 | AnHar, 1909, vol 55, p 95 | |
| -68 | 9.0 | 2417150 | 1905-10-31 | 2417089 | 1905-08-31 | 61 | AAVSO |
| -67 | 9.0 | 2417575 | 1906-12-30 | 2417502 | 1906-10-18 | 73 | AAVSO |
| -66 | 9.0 | 2418001 | 1908-02-29 | 2417916 | 1907-12-06 | 85 | AAVSO |
| -65 | 2418438 | 1909-05-11 | 2418329 | 1909-01-22 | 109 | AAVSO | |
| -64 | 2418833 | 1910-06-10 | 2418743 | 1910-03-12 | 90 | AAVSO | |
| -63 | 2419257 | 1911-08-08 | 2419156 | 1911-04-29 | 101 | AAVSO | |
| -61 | 9.3 | 2420036 | 1913-09-25 | 2419984 | 1913-08-04 | 52 | SVO |
| -60 | 8.9 | 2420441 | 1914-11-04 | 2420397 | 1914-09-21 | 44 | SVO |
| -59 | 8.9 | 2420852 | 1915-12-20 | 2420811 | 1915-11-09 | 41 | AAVSO |
| -58 | 2421275 | 1917-02-15 | 2421224 | 1916-12-26 | 51 | AAVSO | |
| -57 | 2421692 | 1918-04-08 | 2421638 | 1918-02-13 | 54 | AAVSO | |
| -56 | 2422080 | 1919-05-01 | 2422051 | 1919-04-02 | 29 | AAVSO | |
| -55 | 2422469 | 1920-05-24 | 2422465 | 1920-05-20 | 4 | AAVSO | |
| -54 | 9.3 | 2422883 | 1921-07-12 | 2422878 | 1921-07-07 | 5 | AAVSO |
| -53 | 9.8 | 2423285 | 1922-08-18 | 2423292 | 1922-08-25 | -7 | SVO |
| -52 | 9.7 | 2423692 | 1923-09-29 | 2423705 | 1923-10-12 | -13 | SVO |
| -51 | 9.0 | 2424093 | 1924-11-03 | 2424119 | 1924-11-29 | -26 | SVO |
| -50 | 9.1 | 2424510 | 1925-12-25 | 2424532 | 1926-01-16 | -22 | AAVSO |
| -49 | 9.7 | 2424922 | 1927-02-10 | 2424946 | 1927-03-06 | -24 | SVO |
| -48 | 9.4 | 2425331 | 1928-03-25 | 2425360 | 1928-04-23 | -29 | SVO |
| -47 | 9.3 | 2425752 | 1929-05-20 | 2425773 | 1929-06-10 | -21 | SVO |
| -46 | 9.7 | 2426168 | 1930-07-10 | 2426187 | 1930-07-29 | -19 | SVO |
| -45 | 9.4 | 2426585 | 1931-08-31 | 2426600 | 1931-09-15 | -15 | SVO |
| -44 | 9.8 | 2427002 | 1932-10-21 | 2427014 | 1932-11-02 | -12 | SVO |
| -43 | 10.2 | 2427420 | 1933-12-13 | 2427427 | 1933-12-20 | -7 | SVO |
| -42 | 2427829 | 1935-01-26 | 2427841 | 1935-02-07 | -12 | AAVSO | |
| -41 | 10.4 | 2428237 | 1936-03-09 | 2428254 | 1936-03-26 | -17 | AAVSO |
| -40 | 9.2 | 2428644 | 1937-04-20 | 2428668 | 1937-05-14 | -24 | AAVSO |
| -39 | 9.6 | 2429060 | 1938-06-10 | 2429081 | 1938-07-01 | -21 | SVO |
| -38 | 9.8 | 2429479 | 1939-08-03 | 2429495 | 1939-08-19 | -16 | SVO |
| -37 | 8.9 | 2429884 | 1940-09-11 | 2429908 | 1940-10-05 | -24 | SVO |
| -36 | 9.4 | 2430302 | 1941-11-03 | 2430322 | 1941-11-23 | -20 | SVO |
| -35 | 9.0 | 2430712 | 1942-12-18 | 2430736 | 1943-01-11 | -24 | AAVSO |
| -34 | 10.2 | 2431125 | 1944-02-04 | 2431149 | 1944-02-28 | -24 | SVO |
| -32 | 9.8 | 2431974 | 1946-06-02 | 2431976 | 1946-06-04 | -2 | AAVSO |
| -31 | 9.9 | 2432382 | 1947-07-15 | 2432390 | 1947-07-23 | -8 | AAVSO |
| -30 | 9.5 | 2432794 | 1948-08-30 | 2432803 | 1948-09-08 | -9 | SVO |
| -29 | 9.1 | 2433209 | 1949-10-19 | 2433217 | 1949-10-27 | -8 | SVO |
| -28 | 9.6 | 2433608 | 1950-11-22 | 2433630 | 1950-12-14 | -22 | SVO |
| -27 | 10.4 | 2434027 | 1952-01-15 | 2434044 | 1952-02-01 | -17 | AAVSO |
| -26 | 9.4 | 2434437 | 1953-02-28 | 2434457 | 1953-03-20 | -20 | SVO |
| -25 | 10.4 | 2434857 | 1954-04-24 | 2434871 | 1954-05-08 | -14 | AAVSO |
| -24 | 9.4 | 2435269 | 1955-06-10 | 2435284 | 1955-06-25 | -15 | AAVSO |
| -23 | 10.8 | 2435691 | 1956-08-05 | 2435698 | 1956-08-12 | -7 | SVO |
| -22 | 9.6 | 2436090 | 1957-09-08 | 2436112 | 1957-09-30 | -22 | SVO |
| -21 | 9.5 | 2436499 | 1958-10-22 | 2436525 | 1958-11-17 | -26 | SVO |
| -20 | 9.2 | 2436909 | 1959-12-06 | 2436939 | 1960-01-05 | -30 | AAVSO |
| -19 | 8.8 | 2437312 | 1961-01-12 | 2437352 | 1961-02-21 | -40 | AAVSO |
| -18 | 2437724 | 1962-02-28 | 2437766 | 1962-04-11 | -42 | AAVSO | |
| -17 | 2438127 | 1963-04-07 | 2438179 | 1963-05-29 | -52 | AAVSO | |
| -16 | 9.9 | 2438532 | 1964-05-16 | 2438593 | 1964-07-16 | -61 | AAVSO |
| -15 | 9.7 | 2438952 | 1965-07-10 | 2439006 | 1965-09-02 | -54 | SVO |
| -14 | 9.6 | 2439358 | 1966-08-20 | 2439420 | 1966-10-21 | -62 | SVO |
| -13 | 9.2 | 2439770 | 1967-10-06 | 2439833 | 1967-12-08 | -63 | SVO |
| -12 | 9.8 | 2440176 | 1968-11-15 | 2440247 | 1969-01-25 | -71 | SVO |
| -11 | 9.8 | 2440591 | 1970-01-04 | 2440660 | 1970-03-14 | -69 | AAVSO |
| -10 | 10.5 | 2441004 | 1971-02-21 | 2441074 | 1971-05-02 | -70 | AAVSO |
| -9 | 10.5 | 2441421 | 1972-04-13 | 2441488 | 1972-06-19 | -67 | AAVSO |
| -8 | 2441834 | 1973-05-31 | 2441901 | 1973-08-06 | -67 | AAVSO | |
| -7 | 8.8 | 2442260 | 1974-07-31 | 2442315 | 1974-09-24 | -55 | AAVSO |
| -6 | 10.1 | 2442669 | 1975-09-13 | 2442728 | 1975-11-11 | -59 | SVO |
| -5 | 9.2 | 2443094 | 1976-11-11 | 2443142 | 1976-12-29 | -48 | SVO |
| -4 | 10.2 | 2443508 | 1977-12-30 | 2443555 | 1978-02-15 | -47 | SVO |
| -3 | 9.7 | 2443916 | 1979-02-11 | 2443969 | 1979-04-05 | -53 | SVO |
| -2 | 2444329 | 1980-03-30 | 2444382 | 1980-05-22 | -53 | AAVSO | |
| -1 | 9.3 | 2444760 | 1981-06-04 | 2444796 | 1981-07-10 | -36 | AAVSO |
| 0 | 10.2 | 2445173 | 1982-07-22 | 2445209 | 1982-08-27 | -36 | SVO |
| 1 | 9.5 | 2445591 | 1983-09-13 | 2445623 | 1983-10-15 | -32 | SVO |
| 2 | 10.0 | 2446003 | 1984-10-29 | 2446036 | 1984-12-01 | -33 | SVO |
| 3 | 9.8 | 2446427 | 1985-12-27 | 2446450 | 1986-01-19 | -23 | SVO |
| 4 | 9.8 | 2446844 | 1987-02-17 | 2446864 | 1987-03-09 | -20 | SVO |
| 5 | 9.5 | 2447261 | 1988-04-09 | 2447277 | 1988-04-25 | -16 | SVO |
| 6 | 2447678 | 1989-05-31 | 2447691 | 1989-06-13 | -13 | AAVSO | |
| 7 | 9.7 | 2448095 | 1990-07-22 | 2448104 | 1990-07-31 | -9 | SVO |
| 8 | 9.8 | 2448521 | 1991-09-21 | 2448518 | 1991-09-18 | 3 | SVO |
| 9 | 9.6 | 2448936 | 1992-11-09 | 2448931 | 1992-11-04 | 5 | SVO |
| 10 | 9.5 | 2449355 | 1994-01-02 | 2449345 | 1993-12-23 | 10 | SVO |
| 11 | 9.8 | 2449783 | 1995-03-06 | 2449758 | 1995-02-09 | 25 | SVO |
| 12 | 9.5 | 2450198 | 1996-04-24 | 2450172 | 1996-03-29 | 26 | SVO |
| 13 | 2450607 | 1997-06-07 | 2450585 | 1997-05-16 | 22 | AAVSO | |
| 14 | 9.3 | 2451033 | 1998-08-07 | 2450999 | 1998-07-04 | 34 | SVO |
| 15 | 10.1 | 2451452 | 1999-09-30 | 2451412 | 1999-08-21 | 40 | SVO |
| 16 | 9.7 | 2451870 | 2000-11-21 | 2451826 | 2000-10-08 | 44 | SVO |
| 17 | 9.6 | 2452286 | 2002-01-11 | 2452240 | 2001-11-26 | 46 | SVO |
| 18 | 9.5 | 2452716 | 2003-03-17 | 2452653 | 2003-01-13 | 63 | SVO |
| 19 | 9.3 | 2453126 | 2004-04-30 | 2453067 | 2004-03-02 | 59 | SVO |
| 20 | 2453529 | 2005-06-07 | 2453480 | 2005-04-19 | 49 | AAVSO | |
| 21 | 9.5 | 2453942 | 2006-07-25 | 2453894 | 2006-06-07 | 48 | SVO |
| 22 | 10.1 | 2454351 | 2007-09-07 | 2454307 | 2007-07-25 | 44 | SVO |
| 23 | 9.2 | 2454761 | 2008-10-21 | 2454721 | 2008-09-11 | 40 | SVO |
| 24 | 10.1 | 2455167 | 2009-12-01 | 2455134 | 2009-10-29 | 33 | SVO |
| 25 | 9.8 | 2455579 | 2011-01-17 | 2455548 | 2010-12-17 | 31 | AAVSO |
| 26 | 2455992 | 2012-03-05 | 2455961 | 2012-02-03 | 31 | AAVSO | |
| 27 | 2456409 | 2013-04-26 | 2456375 | 2013-03-23 | 34 | AAVSO | |
| 28 | 9.1 | 2456819 | 2014-06-10 | 2456788 | 2014-05-10 | 31 | AAVSO |
| 29 | 9.6 | 2457225 | 2015-07-21 | 2457202 | 2015-06-28 | 23 | SVO |
| 30 | 9.7 | 2457645 | 2016-09-13 | 2457616 | 2016-08-15 | 29 | SVO |
| 31 | 9.5 | 2458066 | 2017-11-08 | 2458029 | 2017-10-02 | 37 | SVO |
| 32 | 9.7 | 2458480 | 2018-12-27 | 2458443 | 2018-11-20 | 37 | SVO |
| 33 | 8.9 | 2458901 | 2020-02-21 | 2458856 | 2020-01-07 | 45 | SVO |
| 34 | 9.5 | 2459312 | 2021-04-07 | 2459270 | 2021-02-24 | 42 | SVO |
| 35 | 2459730 | 2022-05-30 | 2459683 | 2022-04-13 | 47 | 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. |