| E | Mag | O (JD) | O (dat) | C (JD) | C (Dat) | O-C | Source |
| -73 | 2411298 | 1889-10-22 | 2411298 | 1889-10-22 | 0 | GuL, 1920, 1.2, AnHar, 1909, vol 55, p 95 | |
| -67 | 2413728 | 1896-06-17 | 2413707 | 1896-05-27 | 21 | AnHar, 1952, vol 115 | |
| -66 | 2414140 | 1897-08-03 | 2414108 | 1897-07-02 | 32 | AnHar, 1952, vol 115 | |
| -65 | 2414530 | 1898-08-28 | 2414510 | 1898-08-08 | 20 | GuL, 1920, 1.2, AnHar, 1952, vol 115 | |
| -64 | 7.3 | 2414934 | 1899-10-06 | 2414911 | 1899-09-13 | 23 | SVO |
| -63 | 6.9 | 2415325 | 1900-11-01 | 2415313 | 1900-10-20 | 12 | SVO |
| -62 | 7.3 | 2415730 | 1901-12-11 | 2415714 | 1901-11-25 | 16 | SVO |
| -61 | 2416128 | 1903-01-13 | 2416116 | 1903-01-01 | 12 | SVO | |
| -58 | 2417315 | 1906-04-14 | 2417320 | 1906-04-19 | -5 | SVO | |
| -57 | 2417715 | 1907-05-19 | 2417722 | 1907-05-26 | -7 | AnHar, 1952, vol 115 | |
| -56 | 2418100 | 1908-06-07 | 2418123 | 1908-06-30 | -23 | AnHar, 1952, vol 115 | |
| -55 | 2418515 | 1909-07-27 | 2418525 | 1909-08-06 | -10 | AnHar, 1952, vol 115 | |
| -54 | 6.6 | 2418911 | 1910-08-27 | 2418926 | 1910-09-11 | -15 | SVO |
| -53 | 6.3 | 2419319 | 1911-10-09 | 2419328 | 1911-10-18 | -9 | SVO |
| -49 | 6.3 | 2420940 | 1916-03-17 | 2420934 | 1916-03-11 | 6 | SVO |
| -47 | 7.3 | 2421755 | 1918-06-10 | 2421737 | 1918-05-23 | 18 | SVO |
| -46 | 7.3 | 2422157 | 1919-07-17 | 2422139 | 1919-06-29 | 18 | SVO |
| -45 | 2422556 | 1920-08-19 | 2422540 | 1920-08-03 | 16 | SVO | |
| -44 | 7.4 | 2422969 | 1921-10-06 | 2422942 | 1921-09-09 | 27 | AAVSO |
| -43 | 7.6 | 2423358 | 1922-10-30 | 2423343 | 1922-10-15 | 15 | SVO |
| -42 | 6.8 | 2423749 | 1923-11-25 | 2423745 | 1923-11-21 | 4 | SVO |
| -41 | 8.0 | 2424154 | 1925-01-03 | 2424146 | 1924-12-26 | 8 | AAVSO |
| -40 | 7.8 | 2424567 | 1926-02-20 | 2424548 | 1926-02-01 | 19 | AAVSO |
| -39 | 7.4 | 2424963 | 1927-03-23 | 2424949 | 1927-03-09 | 14 | SVO |
| -38 | 7.7 | 2425347 | 1928-04-10 | 2425351 | 1928-04-14 | -4 | SVO |
| -37 | 7.3 | 2425741 | 1929-05-09 | 2425752 | 1929-05-20 | -11 | SVO |
| -36 | 8.1 | 2426162 | 1930-07-04 | 2426154 | 1930-06-26 | 8 | SVO |
| -35 | 8.0 | 2426556 | 1931-08-02 | 2426555 | 1931-08-01 | 1 | AAVSO |
| -34 | 6.3 | 2426944 | 1932-08-24 | 2426957 | 1932-09-06 | -13 | SVO |
| -33 | 9.6 | 2427357 | 1933-10-11 | 2427358 | 1933-10-12 | -1 | SVO |
| -32 | 8.2 | 2427761 | 1934-11-19 | 2427760 | 1934-11-18 | 1 | SVO |
| -31 | 7.8 | 2428168 | 1935-12-31 | 2428161 | 1935-12-24 | 7 | SVO |
| -30 | 7.4 | 2428563 | 1937-01-29 | 2428563 | 1937-01-29 | 0 | SVO |
| -29 | 8.1 | 2428972 | 1938-03-14 | 2428964 | 1938-03-06 | 8 | SVO |
| -28 | 7.5 | 2429377 | 1939-04-23 | 2429366 | 1939-04-12 | 11 | SVO |
| -27 | 8.2 | 2429778 | 1940-05-28 | 2429767 | 1940-05-17 | 11 | SVO |
| -26 | 7.6 | 2430167 | 1941-06-21 | 2430169 | 1941-06-23 | -2 | SVO |
| -25 | 7.5 | 2430568 | 1942-07-27 | 2430570 | 1942-07-29 | -2 | SVO |
| -24 | 7.9 | 2430977 | 1943-09-09 | 2430972 | 1943-09-04 | 5 | SVO |
| -23 | 7.1 | 2431369 | 1944-10-05 | 2431373 | 1944-10-09 | -4 | SVO |
| -22 | 8.0 | 2431772 | 1945-11-12 | 2431775 | 1945-11-15 | -3 | SVO |
| -21 | 8.0 | 2432174 | 1946-12-19 | 2432176 | 1946-12-21 | -2 | SVO |
| -20 | 8.7 | 2432574 | 1948-01-23 | 2432578 | 1948-01-27 | -4 | SVO |
| -19 | 7.6 | 2432974 | 1949-02-26 | 2432979 | 1949-03-03 | -5 | SVO |
| -18 | 8.0 | 2433377 | 1950-04-05 | 2433381 | 1950-04-09 | -4 | SVO |
| -17 | 7.5 | 2433769 | 1951-05-02 | 2433782 | 1951-05-15 | -13 | SVO |
| -16 | 7.3 | 2434164 | 1952-05-31 | 2434184 | 1952-06-20 | -20 | SVO |
| -15 | 7.3 | 2434558 | 1953-06-29 | 2434585 | 1953-07-26 | -27 | SVO |
| -14 | 7.6 | 2434952 | 1954-07-28 | 2434987 | 1954-09-01 | -35 | SVO |
| -13 | 7.0 | 2435352 | 1955-09-01 | 2435388 | 1955-10-07 | -36 | SVO |
| -12 | 7.8 | 2435761 | 1956-10-14 | 2435790 | 1956-11-12 | -29 | SVO |
| -11 | 8.0 | 2436166 | 1957-11-23 | 2436191 | 1957-12-18 | -25 | SVO |
| -10 | 6.5 | 2436568 | 1958-12-30 | 2436593 | 1959-01-24 | -25 | SVO |
| -9 | 8.0 | 2436973 | 1960-02-08 | 2436994 | 1960-02-29 | -21 | SVO |
| -8 | 7.8 | 2437390 | 1961-03-31 | 2437396 | 1961-04-06 | -6 | SVO |
| -7 | 8.7 | 2437796 | 1962-05-11 | 2437797 | 1962-05-12 | -1 | SVO |
| -6 | 7.4 | 2438201 | 1963-06-20 | 2438199 | 1963-06-18 | 2 | SVO |
| -5 | 7.3 | 2438606 | 1964-07-29 | 2438600 | 1964-07-23 | 6 | SVO |
| -4 | 6.7 | 2439009 | 1965-09-05 | 2439002 | 1965-08-29 | 7 | SVO |
| -3 | 8.4 | 2439410 | 1966-10-11 | 2439403 | 1966-10-04 | 7 | SVO |
| -2 | 7.0 | 2439804 | 1967-11-09 | 2439805 | 1967-11-10 | -1 | SVO |
| -1 | 7.7 | 2440215 | 1968-12-24 | 2440206 | 1968-12-15 | 9 | SVO |
| 0 | 7.4 | 2440618 | 1970-01-31 | 2440608 | 1970-01-21 | 10 | SVO |
| 1 | 7.0 | 2440997 | 1971-02-14 | 2441010 | 1971-02-27 | -13 | SVO |
| 2 | 7.8 | 2441415 | 1972-04-07 | 2441411 | 1972-04-03 | 4 | SVO |
| 3 | 7.2 | 2441801 | 1973-04-28 | 2441813 | 1973-05-10 | -12 | SVO |
| 4 | 7.4 | 2442210 | 1974-06-11 | 2442214 | 1974-06-15 | -4 | AAVSO |
| 5 | 7.4 | 2442616 | 1975-07-22 | 2442616 | 1975-07-22 | 0 | SVO |
| 6 | 7.9 | 2443019 | 1976-08-28 | 2443017 | 1976-08-26 | 2 | SVO |
| 7 | 7.8 | 2443420 | 1977-10-03 | 2443419 | 1977-10-02 | 1 | SVO |
| 8 | 7.2 | 2443823 | 1978-11-10 | 2443820 | 1978-11-07 | 3 | SVO |
| 9 | 9.5 | 2444233 | 1979-12-25 | 2444222 | 1979-12-14 | 11 | AAVSO |
| 10 | 8.4 | 2444638 | 1981-02-02 | 2444623 | 1981-01-18 | 15 | SVO |
| 11 | 7.9 | 2445026 | 1982-02-25 | 2445025 | 1982-02-24 | 1 | SVO |
| 12 | 7.6 | 2445417 | 1983-03-23 | 2445426 | 1983-04-01 | -9 | SVO |
| 13 | 7.4 | 2445817 | 1984-04-26 | 2445828 | 1984-05-07 | -11 | SVO |
| 14 | 7.6 | 2446230 | 1985-06-13 | 2446229 | 1985-06-12 | 1 | AAVSO |
| 15 | 8.2 | 2446619 | 1986-07-07 | 2446631 | 1986-07-19 | -12 | SVO |
| 16 | 7.5 | 2447027 | 1987-08-19 | 2447032 | 1987-08-24 | -5 | SVO |
| 17 | 8.0 | 2447429 | 1988-09-24 | 2447434 | 1988-09-29 | -5 | SVO |
| 18 | 7.2 | 2447818 | 1989-10-18 | 2447835 | 1989-11-04 | -17 | SVO |
| 19 | 7.8 | 2448207 | 1990-11-11 | 2448237 | 1990-12-11 | -30 | SVO |
| 20 | 7.6 | 2448600 | 1991-12-09 | 2448638 | 1992-01-16 | -38 | SVO |
| 21 | 8.1 | 2448998 | 1993-01-10 | 2449040 | 1993-02-21 | -42 | SVO |
| 22 | 7.6 | 2449390 | 1994-02-06 | 2449441 | 1994-03-29 | -51 | SVO |
| 23 | 7.9 | 2449793 | 1995-03-16 | 2449843 | 1995-05-05 | -50 | SVO |
| 24 | 7.3 | 2450180 | 1996-04-06 | 2450244 | 1996-06-09 | -64 | SVO |
| 25 | 2450588 | 1997-05-19 | 2450646 | 1997-07-16 | -58 | AAVSO | |
| 26 | 2450986 | 1998-06-21 | 2451047 | 1998-08-21 | -61 | AAVSO | |
| 27 | 7.7 | 2451373 | 1999-07-13 | 2451449 | 1999-09-27 | -76 | SVO |
| 28 | 7.3 | 2451782 | 2000-08-25 | 2451850 | 2000-11-01 | -68 | SVO |
| 29 | 7.4 | 2452169 | 2001-09-16 | 2452252 | 2001-12-08 | -83 | SVO |
| 30 | 7.4 | 2452581 | 2002-11-02 | 2452653 | 2003-01-13 | -72 | SVO |
| 31 | 7.2 | 2452976 | 2003-12-02 | 2453055 | 2004-02-19 | -79 | SVO |
| 32 | 6.6 | 2453375 | 2005-01-04 | 2453456 | 2005-03-26 | -81 | SVO |
| 33 | 7.2 | 2453776 | 2006-02-09 | 2453858 | 2006-05-02 | -82 | SVO |
| 34 | 7.5 | 2454193 | 2007-04-02 | 2454259 | 2007-06-07 | -66 | SVO |
| 35 | 6.7 | 2454594 | 2008-05-07 | 2454661 | 2008-07-13 | -67 | SVO |
| 36 | 9.2 | 2455001 | 2009-06-18 | 2455062 | 2009-08-18 | -61 | SVO |
| 37 | 8.0 | 2455415 | 2010-08-06 | 2455464 | 2010-09-24 | -49 | SVO |
| 38 | 8.2 | 2455823 | 2011-09-18 | 2455865 | 2011-10-30 | -42 | SVO |
| 39 | 7.7 | 2456228 | 2012-10-27 | 2456267 | 2012-12-05 | -39 | SVO |
| 40 | 7.6 | 2456633 | 2013-12-06 | 2456668 | 2014-01-10 | -35 | SVO |
| 41 | 7.4 | 2457051 | 2015-01-28 | 2457070 | 2015-02-16 | -19 | SVO |
| 42 | 6.5 | 2457433 | 2016-02-14 | 2457471 | 2016-03-23 | -38 | SVO |
| 43 | 7.9 | 2457837 | 2017-03-24 | 2457873 | 2017-04-29 | -36 | SVO |
| 44 | 7.4 | 2458248 | 2018-05-09 | 2458274 | 2018-06-04 | -26 | SVO |
| 45 | 7.4 | 2458657 | 2019-06-22 | 2458676 | 2019-07-11 | -19 | SVO |
| 46 | 8.2 | 2459065 | 2020-08-03 | 2459077 | 2020-08-15 | -12 | SVO |
| 47 | 7.1 | 2459456 | 2021-08-29 | 2459479 | 2021-09-21 | -23 | SVO |
| 48 | 7.7 | 2459866 | 2022-10-13 | 2459880 | 2022-10-27 | -14 | 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. |