| E | Mag | O (JD) | O (dat) | C (JD) | C (Dat) | O-C | Source |
| -118 | 2407202 | 1878-08-05 | 2407214 | 1878-08-17 | -12 | GuL, 1920, 1.2 | |
| -101 | 2413657 | 1896-04-07 | 2413704 | 1896-05-24 | -47 | AnHar, 1937, vol 105, p 459, GuL, 1920, 1.2 | |
| -99 | 2414455 | 1898-06-14 | 2414468 | 1898-06-27 | -13 | GuL, 1920, 1.2 | |
| -98 | 2414849 | 1899-07-13 | 2414850 | 1899-07-14 | -1 | GuL, 1920, 1.2 | |
| -97 | 2415245 | 1900-08-13 | 2415231 | 1900-07-30 | 14 | GuL, 1920, 1.2 | |
| -94 | 2416390 | 1903-10-02 | 2416377 | 1903-09-19 | 13 | AnHar, 1952, vol 115 | |
| -93 | 9.4 | 2416760 | 1904-10-06 | 2416758 | 1904-10-04 | 2 | AAVSO |
| -92 | 10.2 | 2417149 | 1905-10-30 | 2417140 | 1905-10-21 | 9 | AAVSO |
| -91 | 9.4 | 2417538 | 1906-11-23 | 2417522 | 1906-11-07 | 16 | AAVSO |
| -90 | 9.0 | 2417925 | 1907-12-15 | 2417904 | 1907-11-24 | 21 | AAVSO |
| -89 | 9.0 | 2418302 | 1908-12-26 | 2418285 | 1908-12-09 | 17 | AAVSO |
| -88 | 2418684 | 1910-01-12 | 2418667 | 1909-12-26 | 17 | AAVSO | |
| -83 | 2420592 | 1915-04-04 | 2420576 | 1915-03-19 | 16 | AAVSO | |
| -82 | 2420948 | 1916-03-25 | 2420958 | 1916-04-04 | -10 | AAVSO | |
| -81 | 2421350 | 1917-05-01 | 2421340 | 1917-04-21 | 10 | AAVSO | |
| -80 | 2421724 | 1918-05-10 | 2421721 | 1918-05-07 | 3 | AAVSO | |
| -79 | 2422104 | 1919-05-25 | 2422103 | 1919-05-24 | 1 | AAVSO | |
| -78 | 2422488 | 1920-06-12 | 2422485 | 1920-06-09 | 3 | AAVSO | |
| -76 | 9.2 | 2423270 | 1922-08-03 | 2423248 | 1922-07-12 | 22 | AAVSO |
| -75 | 9.4 | 2423644 | 1923-08-12 | 2423630 | 1923-07-29 | 14 | SVO |
| -74 | 9.8 | 2424038 | 1924-09-09 | 2424012 | 1924-08-14 | 26 | AAVSO |
| -73 | 9.1 | 2424413 | 1925-09-19 | 2424394 | 1925-08-31 | 19 | SVO |
| -72 | 10.5 | 2424789 | 1926-09-30 | 2424775 | 1926-09-16 | 14 | SVO |
| -71 | 9.7 | 2425160 | 1927-10-06 | 2425157 | 1927-10-03 | 3 | SVO |
| -70 | 10.2 | 2425545 | 1928-10-25 | 2425539 | 1928-10-19 | 6 | SVO |
| -69 | 9.7 | 2425914 | 1929-10-29 | 2425921 | 1929-11-05 | -7 | SVO |
| -68 | 8.9 | 2426293 | 1930-11-12 | 2426303 | 1930-11-22 | -10 | SVO |
| -67 | 9.4 | 2426672 | 1931-11-26 | 2426684 | 1931-12-08 | -12 | SVO |
| -66 | 9.6 | 2427064 | 1932-12-22 | 2427066 | 1932-12-24 | -2 | SVO |
| -65 | 9.9 | 2427436 | 1933-12-29 | 2427448 | 1934-01-10 | -12 | SVO |
| -64 | 9.3 | 2427834 | 1935-01-31 | 2427830 | 1935-01-27 | 4 | SVO |
| -63 | 2428201 | 1936-02-02 | 2428211 | 1936-02-12 | -10 | AAVSO | |
| -62 | 2428590 | 1937-02-25 | 2428593 | 1937-02-28 | -3 | AAVSO | |
| -61 | 2428954 | 1938-02-24 | 2428975 | 1938-03-17 | -21 | AAVSO | |
| -60 | 8.9 | 2429348 | 1939-03-25 | 2429357 | 1939-04-03 | -9 | AAVSO |
| -59 | 10.8 | 2429743 | 1940-04-23 | 2429738 | 1940-04-18 | 5 | AAVSO |
| -58 | 9.8 | 2430131 | 1941-05-16 | 2430120 | 1941-05-05 | 11 | AAVSO |
| -57 | 10.1 | 2430505 | 1942-05-25 | 2430502 | 1942-05-22 | 3 | SVO |
| -56 | 10.1 | 2430874 | 1943-05-29 | 2430884 | 1943-06-08 | -10 | SVO |
| -55 | 9.1 | 2431255 | 1944-06-13 | 2431265 | 1944-06-23 | -10 | SVO |
| -54 | 9.5 | 2431635 | 1945-06-28 | 2431647 | 1945-07-10 | -12 | SVO |
| -53 | 9.6 | 2432022 | 1946-07-20 | 2432029 | 1946-07-27 | -7 | SVO |
| -52 | 9.5 | 2432407 | 1947-08-09 | 2432411 | 1947-08-13 | -4 | SVO |
| -51 | 9.1 | 2432787 | 1948-08-23 | 2432792 | 1948-08-28 | -5 | SVO |
| -50 | 9.4 | 2433168 | 1949-09-08 | 2433174 | 1949-09-14 | -6 | SVO |
| -49 | 9.1 | 2433551 | 1950-09-26 | 2433556 | 1950-10-01 | -5 | SVO |
| -48 | 9.7 | 2433934 | 1951-10-14 | 2433938 | 1951-10-18 | -4 | SVO |
| -47 | 9.6 | 2434312 | 1952-10-26 | 2434320 | 1952-11-03 | -8 | SVO |
| -46 | 9.2 | 2434692 | 1953-11-10 | 2434701 | 1953-11-19 | -9 | SVO |
| -45 | 9.6 | 2435068 | 1954-11-21 | 2435083 | 1954-12-06 | -15 | AAVSO |
| -44 | 9.5 | 2435450 | 1955-12-08 | 2435465 | 1955-12-23 | -15 | SVO |
| -43 | 9.0 | 2435829 | 1956-12-21 | 2435847 | 1957-01-08 | -18 | AAVSO |
| -42 | 10.3 | 2436211 | 1958-01-07 | 2436228 | 1958-01-24 | -17 | AAVSO |
| -41 | 2436584 | 1959-01-15 | 2436610 | 1959-02-10 | -26 | AAVSO | |
| -40 | 9.1 | 2436969 | 1960-02-04 | 2436992 | 1960-02-27 | -23 | SVO |
| -39 | 2437336 | 1961-02-05 | 2437374 | 1961-03-15 | -38 | AAVSO | |
| -38 | 10.2 | 2437721 | 1962-02-25 | 2437755 | 1962-03-31 | -34 | AAVSO |
| -37 | 10.1 | 2438133 | 1963-04-13 | 2438137 | 1963-04-17 | -4 | AAVSO |
| -36 | 9.8 | 2438510 | 1964-04-24 | 2438519 | 1964-05-03 | -9 | AAVSO |
| -35 | 9.8 | 2438897 | 1965-05-16 | 2438901 | 1965-05-20 | -4 | AAVSO |
| -34 | 9.9 | 2439276 | 1966-05-30 | 2439282 | 1966-06-05 | -6 | SVO |
| -33 | 9.0 | 2439669 | 1967-06-27 | 2439664 | 1967-06-22 | 5 | SVO |
| -32 | 10.1 | 2440051 | 1968-07-13 | 2440046 | 1968-07-08 | 5 | SVO |
| -31 | 10.5 | 2440452 | 1969-08-18 | 2440428 | 1969-07-25 | 24 | SVO |
| -30 | 8.8 | 2440829 | 1970-08-30 | 2440810 | 1970-08-11 | 19 | SVO |
| -29 | 10.3 | 2441218 | 1971-09-23 | 2441191 | 1971-08-27 | 27 | SVO |
| -28 | 9.3 | 2441601 | 1972-10-10 | 2441573 | 1972-09-12 | 28 | SVO |
| -27 | 10.0 | 2441983 | 1973-10-27 | 2441955 | 1973-09-29 | 28 | SVO |
| -26 | 9.5 | 2442376 | 1974-11-24 | 2442337 | 1974-10-16 | 39 | SVO |
| -25 | 9.8 | 2442757 | 1975-12-10 | 2442718 | 1975-11-01 | 39 | SVO |
| -24 | 9.1 | 2443135 | 1976-12-22 | 2443100 | 1976-11-17 | 35 | SVO |
| -23 | 9.4 | 2443524 | 1978-01-15 | 2443482 | 1977-12-04 | 42 | AAVSO |
| -22 | 9.8 | 2443891 | 1979-01-17 | 2443864 | 1978-12-21 | 27 | SVO |
| -21 | 9.7 | 2444261 | 1980-01-22 | 2444245 | 1980-01-06 | 16 | SVO |
| -20 | 11.2 | 2444650 | 1981-02-14 | 2444627 | 1981-01-22 | 23 | AAVSO |
| -19 | 11.0 | 2445013 | 1982-02-12 | 2445009 | 1982-02-08 | 4 | AAVSO |
| -18 | 9.8 | 2445393 | 1983-02-27 | 2445391 | 1983-02-25 | 2 | AAVSO |
| -17 | 10.2 | 2445776 | 1984-03-16 | 2445772 | 1984-03-12 | 4 | AAVSO |
| -16 | 9.4 | 2446158 | 1985-04-02 | 2446154 | 1985-03-29 | 4 | AAVSO |
| -15 | 9.7 | 2446528 | 1986-04-07 | 2446536 | 1986-04-15 | -8 | SVO |
| -14 | 9.3 | 2446910 | 1987-04-24 | 2446918 | 1987-05-02 | -8 | SVO |
| -13 | 10.1 | 2447294 | 1988-05-12 | 2447300 | 1988-05-18 | -6 | SVO |
| -12 | 9.2 | 2447661 | 1989-05-14 | 2447681 | 1989-06-03 | -20 | SVO |
| -11 | 9.3 | 2448037 | 1990-05-25 | 2448063 | 1990-06-20 | -26 | SVO |
| -10 | 9.1 | 2448425 | 1991-06-17 | 2448445 | 1991-07-07 | -20 | SVO |
| -9 | 9.6 | 2448801 | 1992-06-27 | 2448827 | 1992-07-23 | -26 | SVO |
| -8 | 9.1 | 2449180 | 1993-07-11 | 2449208 | 1993-08-08 | -28 | SVO |
| -7 | 9.3 | 2449563 | 1994-07-29 | 2449590 | 1994-08-25 | -27 | SVO |
| -6 | 9.7 | 2449943 | 1995-08-13 | 2449972 | 1995-09-11 | -29 | SVO |
| -5 | 9.5 | 2450332 | 1996-09-05 | 2450354 | 1996-09-27 | -22 | SVO |
| -4 | 10.1 | 2450710 | 1997-09-18 | 2450735 | 1997-10-13 | -25 | SVO |
| -3 | 9.7 | 2451094 | 1998-10-07 | 2451117 | 1998-10-30 | -23 | SVO |
| -2 | 8.6 | 2451475 | 1999-10-23 | 2451499 | 1999-11-16 | -24 | SVO |
| -1 | 10.3 | 2451864 | 2000-11-15 | 2451881 | 2000-12-02 | -17 | SVO |
| 0 | 9.6 | 2452244 | 2001-11-30 | 2452262 | 2001-12-18 | -18 | SVO |
| 1 | 9.9 | 2452635 | 2002-12-26 | 2452644 | 2003-01-04 | -9 | SVO |
| 2 | 9.5 | 2453020 | 2004-01-15 | 2453026 | 2004-01-21 | -6 | SVO |
| 3 | 9.2 | 2453400 | 2005-01-29 | 2453408 | 2005-02-06 | -8 | SVO |
| 4 | 2453785 | 2006-02-18 | 2453790 | 2006-02-23 | -5 | AAVSO | |
| 5 | 2454169 | 2007-03-09 | 2454171 | 2007-03-11 | -2 | AAVSO | |
| 6 | 10.0 | 2454554 | 2008-03-28 | 2454553 | 2008-03-27 | 1 | SVO |
| 7 | 9.1 | 2454934 | 2009-04-12 | 2454935 | 2009-04-13 | -1 | AAVSO |
| 8 | 9.9 | 2455315 | 2010-04-28 | 2455317 | 2010-04-30 | -2 | SVO |
| 9 | 9.9 | 2455713 | 2011-05-31 | 2455698 | 2011-05-16 | 15 | SVO |
| 10 | 9.7 | 2456094 | 2012-06-15 | 2456080 | 2012-06-01 | 14 | SVO |
| 11 | 9.8 | 2456479 | 2013-07-05 | 2456462 | 2013-06-18 | 17 | SVO |
| 12 | 8.9 | 2456858 | 2014-07-19 | 2456844 | 2014-07-05 | 14 | SVO |
| 13 | 9.5 | 2457248 | 2015-08-13 | 2457225 | 2015-07-21 | 23 | SVO |
| 14 | 9.6 | 2457626 | 2016-08-25 | 2457607 | 2016-08-06 | 19 | SVO |
| 15 | 9.4 | 2458008 | 2017-09-11 | 2457989 | 2017-08-23 | 19 | SVO |
| 16 | 10.3 | 2458388 | 2018-09-26 | 2458371 | 2018-09-09 | 17 | SVO |
| 17 | 9.9 | 2458768 | 2019-10-11 | 2458752 | 2019-09-25 | 16 | SVO |
| 18 | 9.0 | 2459155 | 2020-11-01 | 2459134 | 2020-10-11 | 21 | SVO |
| 19 | 10.1 | 2459518 | 2021-10-30 | 2459516 | 2021-10-28 | 2 | SVO |
| 20 | 9.3 | 2459899 | 2022-11-15 | 2459898 | 2022-11-14 | 1 | 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. |