| E | Mag | O (JD) | O (dat) | C (JD) | C (Dat) | O-C | Source |
| -86 | 2407770 | 1880-02-24 | 2407556 | 1879-07-25 | 214 | GuL, 1918, 1.1 | |
| -85 | 2408203 | 1881-05-02 | 2407970 | 1880-09-11 | 233 | GuL, 1918, 1.1 | |
| -82 | 2409475 | 1884-10-25 | 2409212 | 1884-02-05 | 263 | GuL, 1918, 1.1 | |
| -81 | 2409893 | 1885-12-17 | 2409626 | 1885-03-25 | 267 | GuL, 1918, 1.1 | |
| -80 | 2410315 | 1887-02-12 | 2410040 | 1886-05-13 | 275 | GuL, 1918, 1.1 | |
| -79 | 2410745 | 1888-04-17 | 2410453 | 1887-06-30 | 292 | GuL, 1918, 1.1 | |
| -78 | 2411139 | 1889-05-16 | 2410867 | 1888-08-17 | 272 | GuL, 1918, 1.1 | |
| -75 | 2412327 | 1892-08-16 | 2412109 | 1892-01-11 | 218 | GuL, 1918, 1.1 | |
| -69 | 2414776 | 1899-05-01 | 2414592 | 1898-10-29 | 184 | GuL, 1918, 1.1 | |
| -68 | 2415154 | 1900-05-14 | 2415006 | 1899-12-17 | 148 | GuL, 1918, 1.1 | |
| -64 | 9.5 | 2416787 | 1904-11-02 | 2416662 | 1904-06-30 | 125 | AAVSO |
| -63 | 9.0 | 2417213 | 1906-01-02 | 2417076 | 1905-08-18 | 137 | AAVSO |
| -62 | 9.0 | 2417616 | 1907-02-09 | 2417489 | 1906-10-05 | 127 | AAVSO |
| -61 | 8.9 | 2418026 | 1908-03-25 | 2417903 | 1907-11-23 | 123 | AAVSO |
| -60 | 8.7 | 2418429 | 1909-05-02 | 2418317 | 1909-01-10 | 112 | AAVSO |
| -59 | 2418845 | 1910-06-22 | 2418731 | 1910-02-28 | 114 | AAVSO | |
| -58 | 9.1 | 2419252 | 1911-08-03 | 2419145 | 1911-04-18 | 107 | AAVSO |
| -57 | 8.2 | 2419667 | 1912-09-21 | 2419559 | 1912-06-05 | 108 | SVO |
| -56 | 8.4 | 2420080 | 1913-11-08 | 2419973 | 1913-07-24 | 107 | SVO |
| -55 | 9.1 | 2420495 | 1914-12-28 | 2420387 | 1914-09-11 | 108 | SVO |
| -54 | 8.5 | 2420910 | 1916-02-16 | 2420800 | 1915-10-29 | 110 | SVO |
| -53 | 8.8 | 2421333 | 1917-04-14 | 2421214 | 1916-12-16 | 119 | AAVSO |
| -52 | 9.0 | 2421753 | 1918-06-08 | 2421628 | 1918-02-03 | 125 | AAVSO |
| -51 | 2422166 | 1919-07-26 | 2422042 | 1919-03-24 | 124 | AAVSO | |
| -50 | 8.5 | 2422592 | 1920-09-24 | 2422456 | 1920-05-11 | 136 | SVO |
| -49 | 8.8 | 2423011 | 1921-11-17 | 2422870 | 1921-06-29 | 141 | SVO |
| -48 | 8.6 | 2423436 | 1923-01-16 | 2423284 | 1922-08-17 | 152 | AAVSO |
| -47 | 8.6 | 2423853 | 1924-03-08 | 2423698 | 1923-10-05 | 155 | SVO |
| -46 | 8.2 | 2424262 | 1925-04-21 | 2424112 | 1924-11-22 | 150 | AAVSO |
| -45 | 2424688 | 1926-06-21 | 2424525 | 1926-01-09 | 163 | AAVSO | |
| -44 | 2425098 | 1927-08-05 | 2424939 | 1927-02-27 | 159 | AAVSO | |
| -43 | 8.9 | 2425505 | 1928-09-15 | 2425353 | 1928-04-16 | 152 | SVO |
| -42 | 8.7 | 2425917 | 1929-11-01 | 2425767 | 1929-06-04 | 150 | SVO |
| -41 | 8.5 | 2426321 | 1930-12-10 | 2426181 | 1930-07-23 | 140 | SVO |
| -40 | 8.5 | 2426722 | 1932-01-15 | 2426595 | 1931-09-10 | 127 | SVO |
| -39 | 8.7 | 2427122 | 1933-02-18 | 2427009 | 1932-10-28 | 113 | SVO |
| -38 | 8.4 | 2427526 | 1934-03-29 | 2427423 | 1933-12-16 | 103 | AAVSO |
| -37 | 8.7 | 2427933 | 1935-05-10 | 2427836 | 1935-02-02 | 97 | AAVSO |
| -36 | 8.4 | 2428318 | 1936-05-29 | 2428250 | 1936-03-22 | 68 | SVO |
| -35 | 2428739 | 1937-07-24 | 2428664 | 1937-05-10 | 75 | AAVSO | |
| -34 | 2429138 | 1938-08-27 | 2429078 | 1938-06-28 | 60 | AAVSO | |
| -33 | 8.5 | 2429547 | 1939-10-10 | 2429492 | 1939-08-16 | 55 | SVO |
| -32 | 8.6 | 2429955 | 1940-11-21 | 2429906 | 1940-10-03 | 49 | SVO |
| -31 | 9.2 | 2430365 | 1942-01-05 | 2430320 | 1941-11-21 | 45 | SVO |
| -30 | 8.9 | 2430786 | 1943-03-02 | 2430734 | 1943-01-09 | 52 | SVO |
| -29 | 8.9 | 2431174 | 1944-03-24 | 2431147 | 1944-02-26 | 27 | AAVSO |
| -28 | 9.3 | 2431584 | 1945-05-08 | 2431561 | 1945-04-15 | 23 | AAVSO |
| -27 | 9.2 | 2432004 | 1946-07-02 | 2431975 | 1946-06-03 | 29 | AAVSO |
| -26 | 2432412 | 1947-08-14 | 2432389 | 1947-07-22 | 23 | AAVSO | |
| -25 | 9.0 | 2432851 | 1948-10-26 | 2432803 | 1948-09-08 | 48 | SVO |
| -24 | 8.8 | 2433253 | 1949-12-02 | 2433217 | 1949-10-27 | 36 | SVO |
| -23 | 9.2 | 2433673 | 1951-01-26 | 2433631 | 1950-12-15 | 42 | AAVSO |
| -22 | 9.1 | 2434069 | 1952-02-26 | 2434045 | 1952-02-02 | 24 | SVO |
| -21 | 9.0 | 2434453 | 1953-03-16 | 2434459 | 1953-03-22 | -6 | SVO |
| -20 | 9.0 | 2434856 | 1954-04-23 | 2434872 | 1954-05-09 | -16 | AAVSO |
| -19 | 9.2 | 2435253 | 1955-05-25 | 2435286 | 1955-06-27 | -33 | AAVSO |
| -18 | 2435644 | 1956-06-19 | 2435700 | 1956-08-14 | -56 | AAVSO | |
| -17 | 2436026 | 1957-07-06 | 2436114 | 1957-10-02 | -88 | AAVSO | |
| -16 | 2436423 | 1958-08-07 | 2436528 | 1958-11-20 | -105 | AAVSO | |
| -15 | 8.3 | 2436837 | 1959-09-25 | 2436942 | 1960-01-08 | -105 | SVO |
| -14 | 8.5 | 2437245 | 1960-11-06 | 2437356 | 1961-02-25 | -111 | SVO |
| -13 | 9.2 | 2437655 | 1961-12-21 | 2437770 | 1962-04-15 | -115 | AAVSO |
| -12 | 9.4 | 2438077 | 1963-02-16 | 2438183 | 1963-06-02 | -106 | AAVSO |
| -11 | 9.6 | 2438510 | 1964-04-24 | 2438597 | 1964-07-20 | -87 | AAVSO |
| -10 | 9.0 | 2438921 | 1965-06-09 | 2439011 | 1965-09-07 | -90 | AAVSO |
| -9 | 2439338 | 1966-07-31 | 2439425 | 1966-10-26 | -87 | AAVSO | |
| -8 | 8.5 | 2439739 | 1967-09-05 | 2439839 | 1967-12-14 | -100 | SVO |
| -7 | 9.0 | 2440178 | 1968-11-17 | 2440253 | 1969-01-31 | -75 | SVO |
| -6 | 8.9 | 2440611 | 1970-01-24 | 2440667 | 1970-03-21 | -56 | SVO |
| -5 | 8.9 | 2441036 | 1971-03-25 | 2441081 | 1971-05-09 | -45 | SVO |
| -4 | 9.3 | 2441431 | 1972-04-23 | 2441494 | 1972-06-25 | -63 | AAVSO |
| -3 | 2441906 | 1973-08-11 | 2441908 | 1973-08-13 | -2 | AAVSO | |
| -2 | 8.7 | 2442316 | 1974-09-25 | 2442322 | 1974-10-01 | -6 | SVO |
| -1 | 8.5 | 2442737 | 1975-11-20 | 2442736 | 1975-11-19 | 1 | SVO |
| 0 | 8.5 | 2443160 | 1977-01-16 | 2443150 | 1977-01-06 | 10 | SVO |
| 1 | 8.6 | 2443591 | 1978-03-23 | 2443564 | 1978-02-24 | 27 | SVO |
| 2 | 8.3 | 2444015 | 1979-05-21 | 2443978 | 1979-04-14 | 37 | AAVSO |
| 3 | 8.4 | 2444435 | 1980-07-14 | 2444392 | 1980-06-01 | 43 | AAVSO |
| 4 | 9.0 | 2444843 | 1981-08-26 | 2444806 | 1981-07-20 | 37 | SVO |
| 5 | 8.8 | 2445263 | 1982-10-20 | 2445219 | 1982-09-06 | 44 | SVO |
| 6 | 8.8 | 2445673 | 1983-12-04 | 2445633 | 1983-10-25 | 40 | SVO |
| 7 | 8.6 | 2446083 | 1985-01-17 | 2446047 | 1984-12-12 | 36 | SVO |
| 8 | 8.9 | 2446488 | 1986-02-26 | 2446461 | 1986-01-30 | 27 | SVO |
| 9 | 8.7 | 2446897 | 1987-04-11 | 2446875 | 1987-03-20 | 22 | SVO |
| 10 | 8.5 | 2447309 | 1988-05-27 | 2447289 | 1988-05-07 | 20 | SVO |
| 11 | 2447711 | 1989-07-03 | 2447703 | 1989-06-25 | 8 | AAVSO | |
| 12 | 9.0 | 2448114 | 1990-08-10 | 2448117 | 1990-08-13 | -3 | SVO |
| 13 | 8.9 | 2448515 | 1991-09-15 | 2448530 | 1991-09-30 | -15 | SVO |
| 14 | 9.2 | 2448921 | 1992-10-25 | 2448944 | 1992-11-17 | -23 | SVO |
| 15 | 8.8 | 2449330 | 1993-12-08 | 2449358 | 1994-01-05 | -28 | SVO |
| 16 | 9.0 | 2449751 | 1995-02-02 | 2449772 | 1995-02-23 | -21 | SVO |
| 17 | 8.8 | 2450164 | 1996-03-21 | 2450186 | 1996-04-12 | -22 | SVO |
| 18 | 8.6 | 2450591 | 1997-05-22 | 2450600 | 1997-05-31 | -9 | SVO |
| 19 | 2450996 | 1998-07-01 | 2451014 | 1998-07-19 | -18 | AAVSO | |
| 20 | 2451408 | 1999-08-17 | 2451428 | 1999-09-06 | -20 | AAVSO | |
| 21 | 8.5 | 2451804 | 2000-09-16 | 2451841 | 2000-10-23 | -37 | SVO |
| 22 | 9.3 | 2452237 | 2001-11-23 | 2452255 | 2001-12-11 | -18 | SVO |
| 23 | 9.1 | 2452651 | 2003-01-11 | 2452669 | 2003-01-29 | -18 | SVO |
| 24 | 8.9 | 2453057 | 2004-02-21 | 2453083 | 2004-03-18 | -26 | SVO |
| 25 | 8.9 | 2453465 | 2005-04-04 | 2453497 | 2005-05-06 | -32 | SVO |
| 26 | 2453901 | 2006-06-14 | 2453911 | 2006-06-24 | -10 | AAVSO | |
| 27 | 2454299 | 2007-07-17 | 2454325 | 2007-08-12 | -26 | AAVSO | |
| 28 | 8.2 | 2454697 | 2008-08-18 | 2454739 | 2008-09-29 | -42 | SVO |
| 29 | 9.0 | 2455112 | 2009-10-07 | 2455153 | 2009-11-17 | -41 | SVO |
| 30 | 9.6 | 2455557 | 2010-12-26 | 2455566 | 2011-01-04 | -9 | AAVSO |
| 31 | 9.3 | 2455971 | 2012-02-13 | 2455980 | 2012-02-22 | -9 | AAVSO |
| 32 | 9.1 | 2456352 | 2013-02-28 | 2456394 | 2013-04-11 | -42 | SVO |
| 33 | 9.2 | 2456756 | 2014-04-08 | 2456808 | 2014-05-30 | -52 | SVO |
| 34 | 8.9 | 2457167 | 2015-05-24 | 2457222 | 2015-07-18 | -55 | SVO |
| 35 | 2457593 | 2016-07-23 | 2457636 | 2016-09-04 | -43 | AAVSO | |
| 36 | 8.9 | 2457985 | 2017-08-19 | 2458050 | 2017-10-23 | -65 | AAVSO |
| 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. |