| E | Mag | O (JD) | O (dat) | C (JD) | C (Dat) | O-C | Source |
| -108 | 2411580 | 1890-07-31 | 2411420 | 1890-02-21 | 160 | SVO | |
| -100 | 2414782 | 1899-05-07 | 2414620 | 1898-11-26 | 162 | SVO | |
| -99 | 2415170 | 1900-05-30 | 2415020 | 1899-12-31 | 150 | SVO | |
| -98 | 2415569 | 1901-07-03 | 2415420 | 1901-02-04 | 149 | AnHar, 1909, vol 55, p 95 | |
| -97 | 2415968 | 1902-08-06 | 2415820 | 1902-03-11 | 148 | SVO | |
| -96 | 2416370 | 1903-09-12 | 2416220 | 1903-04-15 | 150 | SVO | |
| -95 | 2416770 | 1904-10-16 | 2416620 | 1904-05-19 | 150 | SVO | |
| -94 | 2417150 | 1905-10-31 | 2417020 | 1905-06-23 | 130 | SVO | |
| -93 | 2417526 | 1906-11-11 | 2417420 | 1906-07-28 | 106 | AAVSO | |
| -91 | 2418316 | 1909-01-09 | 2418220 | 1908-10-05 | 96 | AAVSO | |
| -89 | 2419140 | 1911-04-13 | 2419020 | 1910-12-14 | 120 | AAVSO | |
| -88 | 2419535 | 1912-05-12 | 2419420 | 1912-01-18 | 115 | SVO | |
| -87 | 2419930 | 1913-06-11 | 2419820 | 1913-02-21 | 110 | SVO | |
| -86 | 9.5 | 2420330 | 1914-07-16 | 2420220 | 1914-03-28 | 110 | AAVSO |
| -85 | 2420718 | 1915-08-08 | 2420620 | 1915-05-02 | 98 | SVO | |
| -84 | 2421098 | 1916-08-22 | 2421020 | 1916-06-05 | 78 | SVO | |
| -83 | 9.6 | 2421485 | 1917-09-13 | 2421420 | 1917-07-10 | 65 | AAVSO |
| -82 | 2421876 | 1918-10-09 | 2421820 | 1918-08-14 | 56 | AAVSO | |
| -79 | 2423065 | 1922-01-10 | 2423020 | 1921-11-26 | 45 | AAVSO | |
| -78 | 8.8 | 2423466 | 1923-02-15 | 2423420 | 1922-12-31 | 46 | AAVSO |
| -77 | 8.2 | 2423867 | 1924-03-22 | 2423820 | 1924-02-04 | 47 | AAVSO |
| -76 | 9.0 | 2424260 | 1925-04-19 | 2424220 | 1925-03-10 | 40 | AAVSO |
| -75 | 8.4 | 2424636 | 1926-04-30 | 2424620 | 1926-04-14 | 16 | SVO |
| -74 | 10.0 | 2425035 | 1927-06-03 | 2425020 | 1927-05-19 | 15 | AAVSO |
| -73 | 8.0 | 2425439 | 1928-07-11 | 2425420 | 1928-06-22 | 19 | SVO |
| -72 | 9.0 | 2425834 | 1929-08-10 | 2425820 | 1929-07-27 | 14 | SVO |
| -71 | 8.1 | 2426230 | 1930-09-10 | 2426220 | 1930-08-31 | 10 | SVO |
| -70 | 8.4 | 2426622 | 1931-10-07 | 2426620 | 1931-10-05 | 2 | AAVSO |
| -69 | 8.2 | 2427012 | 1932-10-31 | 2427020 | 1932-11-08 | -8 | SVO |
| -68 | 2427431 | 1933-12-24 | 2427420 | 1933-12-13 | 11 | AAVSO | |
| -67 | 2427827 | 1935-01-24 | 2427820 | 1935-01-17 | 7 | AAVSO | |
| -65 | 2428632 | 1937-04-08 | 2428620 | 1937-03-27 | 12 | AAVSO | |
| -64 | 9.1 | 2429022 | 1938-05-03 | 2429020 | 1938-05-01 | 2 | AAVSO |
| -63 | 7.8 | 2429397 | 1939-05-13 | 2429420 | 1939-06-05 | -23 | AAVSO |
| -62 | 8.6 | 2429777 | 1940-05-27 | 2429820 | 1940-07-09 | -43 | AAVSO |
| -61 | 7.8 | 2430169 | 1941-06-23 | 2430220 | 1941-08-13 | -51 | SVO |
| -60 | 10.4 | 2430572 | 1942-07-31 | 2430620 | 1942-09-17 | -48 | AAVSO |
| -59 | 8.9 | 2430977 | 1943-09-09 | 2431020 | 1943-10-22 | -43 | SVO |
| -58 | 9.9 | 2431358 | 1944-09-24 | 2431420 | 1944-11-25 | -62 | AAVSO |
| -57 | 8.3 | 2431750 | 1945-10-21 | 2431820 | 1945-12-30 | -70 | AAVSO |
| -56 | 2432158 | 1946-12-03 | 2432220 | 1947-02-03 | -62 | AAVSO | |
| -55 | 2432553 | 1948-01-02 | 2432620 | 1948-03-09 | -67 | AAVSO | |
| -54 | 2432958 | 1949-02-10 | 2433020 | 1949-04-13 | -62 | AAVSO | |
| -53 | 8.6 | 2433360 | 1950-03-19 | 2433420 | 1950-05-18 | -60 | AAVSO |
| -52 | 9.3 | 2433764 | 1951-04-27 | 2433820 | 1951-06-22 | -56 | SVO |
| -51 | 8.0 | 2434149 | 1952-05-16 | 2434220 | 1952-07-26 | -71 | SVO |
| -50 | 9.0 | 2434543 | 1953-06-14 | 2434620 | 1953-08-30 | -77 | SVO |
| -49 | 8.5 | 2434940 | 1954-07-16 | 2435020 | 1954-10-04 | -80 | SVO |
| -48 | 9.4 | 2435349 | 1955-08-29 | 2435420 | 1955-11-08 | -71 | SVO |
| -47 | 8.1 | 2435737 | 1956-09-20 | 2435820 | 1956-12-12 | -83 | SVO |
| -46 | 8.8 | 2436131 | 1957-10-19 | 2436220 | 1958-01-16 | -89 | AAVSO |
| -45 | 8.3 | 2436525 | 1958-11-17 | 2436620 | 1959-02-20 | -95 | AAVSO |
| -44 | 2436922 | 1959-12-19 | 2437020 | 1960-03-26 | -98 | AAVSO | |
| -43 | 2437309 | 1961-01-09 | 2437420 | 1961-04-30 | -111 | AAVSO | |
| -42 | 8.2 | 2437698 | 1962-02-02 | 2437820 | 1962-06-04 | -122 | AAVSO |
| -41 | 2438095 | 1963-03-06 | 2438220 | 1963-07-09 | -125 | AAVSO | |
| -40 | 9.7 | 2438488 | 1964-04-02 | 2438620 | 1964-08-12 | -132 | AAVSO |
| -39 | 7.2 | 2438880 | 1965-04-29 | 2439020 | 1965-09-16 | -140 | AAVSO |
| -38 | 9.0 | 2439275 | 1966-05-29 | 2439420 | 1966-10-21 | -145 | SVO |
| -37 | 8.4 | 2439663 | 1967-06-21 | 2439820 | 1967-11-25 | -157 | SVO |
| -36 | 8.4 | 2440053 | 1968-07-15 | 2440220 | 1968-12-29 | -167 | SVO |
| -35 | 8.5 | 2440454 | 1969-08-20 | 2440620 | 1970-02-02 | -166 | SVO |
| -34 | 8.7 | 2440850 | 1970-09-20 | 2441020 | 1971-03-09 | -170 | SVO |
| -33 | 8.9 | 2441238 | 1971-10-13 | 2441420 | 1972-04-12 | -182 | AAVSO |
| -32 | 8.5 | 2441633 | 1972-11-11 | 2441820 | 1973-05-17 | -187 | AAVSO |
| -31 | 9.6 | 2442036 | 1973-12-19 | 2442220 | 1974-06-21 | -184 | AAVSO |
| -30 | 2442430 | 1975-01-17 | 2442620 | 1975-07-26 | -190 | AAVSO | |
| -29 | 10.0 | 2442823 | 1976-02-14 | 2443020 | 1976-08-29 | -197 | AAVSO |
| -28 | 9.3 | 2443226 | 1977-03-23 | 2443420 | 1977-10-03 | -194 | AAVSO |
| -27 | 8.8 | 2443618 | 1978-04-19 | 2443820 | 1978-11-07 | -202 | AAVSO |
| -26 | 8.9 | 2444003 | 1979-05-09 | 2444220 | 1979-12-12 | -217 | AAVSO |
| -25 | 9.6 | 2444369 | 1980-05-09 | 2444620 | 1981-01-15 | -251 | AAVSO |
| -24 | 8.5 | 2444744 | 1981-05-19 | 2445020 | 1982-02-19 | -276 | SVO |
| -23 | 9.3 | 2445143 | 1982-06-22 | 2445420 | 1983-03-26 | -277 | SVO |
| -22 | 8.8 | 2445537 | 1983-07-21 | 2445820 | 1984-04-29 | -283 | SVO |
| -21 | 8.4 | 2445918 | 1984-08-05 | 2446220 | 1985-06-03 | -302 | SVO |
| -20 | 8.7 | 2446308 | 1985-08-30 | 2446620 | 1986-07-08 | -312 | SVO |
| -19 | 8.2 | 2446715 | 1986-10-11 | 2447020 | 1987-08-12 | -305 | SVO |
| -18 | 8.1 | 2447116 | 1987-11-16 | 2447420 | 1988-09-15 | -304 | SVO |
| -17 | 9.0 | 2447515 | 1988-12-19 | 2447820 | 1989-10-20 | -305 | SVO |
| -16 | 7.9 | 2447910 | 1990-01-18 | 2448220 | 1990-11-24 | -310 | SVO |
| -15 | 2448315 | 1991-02-27 | 2448620 | 1991-12-29 | -305 | AAVSO | |
| -14 | 2448701 | 1992-03-19 | 2449020 | 1993-02-01 | -319 | AAVSO | |
| -13 | 2449091 | 1993-04-13 | 2449420 | 1994-03-08 | -329 | AAVSO | |
| -12 | 8.3 | 2449482 | 1994-05-09 | 2449820 | 1995-04-12 | -338 | SVO |
| -11 | 10.6 | 2449896 | 1995-06-27 | 2450220 | 1996-05-16 | -324 | SVO |
| -10 | 8.6 | 2450268 | 1996-07-03 | 2450620 | 1997-06-20 | -352 | SVO |
| -9 | 10.4 | 2450667 | 1997-08-06 | 2451020 | 1998-07-25 | -353 | SVO |
| -8 | 8.0 | 2451042 | 1998-08-16 | 2451420 | 1999-08-29 | -378 | SVO |
| -7 | 8.5 | 2451448 | 1999-09-26 | 2451820 | 2000-10-02 | -372 | SVO |
| -6 | 8.6 | 2451839 | 2000-10-21 | 2452220 | 2001-11-06 | -381 | SVO |
| -5 | 8.6 | 2452223 | 2001-11-09 | 2452620 | 2002-12-11 | -397 | SVO |
| -4 | 8.9 | 2452627 | 2002-12-18 | 2453020 | 2004-01-15 | -393 | SVO |
| -3 | 9.1 | 2453040 | 2004-02-04 | 2453420 | 2005-02-18 | -380 | SVO |
| -2 | 2453425 | 2005-02-23 | 2453820 | 2006-03-25 | -395 | AAVSO | |
| -1 | 2453809 | 2006-03-14 | 2454220 | 2007-04-29 | -411 | AAVSO | |
| 0 | 8.7 | 2454215 | 2007-04-24 | 2454620 | 2008-06-02 | -405 | SVO |
| 1 | 7.9 | 2454626 | 2008-06-08 | 2455020 | 2009-07-07 | -394 | SVO |
| 2 | 9.0 | 2455020 | 2009-07-07 | 2455420 | 2010-08-11 | -400 | SVO |
| 3 | 8.1 | 2455411 | 2010-08-02 | 2455820 | 2011-09-15 | -409 | SVO |
| 4 | 8.4 | 2455806 | 2011-09-01 | 2456220 | 2012-10-19 | -414 | SVO |
| 5 | 8.6 | 2456212 | 2012-10-11 | 2456620 | 2013-11-23 | -408 | SVO |
| 6 | 8.2 | 2456594 | 2013-10-28 | 2457020 | 2014-12-28 | -426 | SVO |
| 7 | 9.1 | 2456996 | 2014-12-04 | 2457420 | 2016-02-01 | -424 | SVO |
| 8 | 8.5 | 2457390 | 2016-01-02 | 2457820 | 2017-03-07 | -430 | SVO |
| 9 | 8.5 | 2457782 | 2017-01-28 | 2458220 | 2018-04-11 | -438 | SVO |
| 10 | 8.9 | 2458185 | 2018-03-07 | 2458620 | 2019-05-16 | -435 | SVO |
| 11 | 8.6 | 2458571 | 2019-03-28 | 2459020 | 2020-06-19 | -449 | SVO |
| 12 | 8.2 | 2458961 | 2020-04-21 | 2459420 | 2021-07-24 | -459 | SVO |
| 13 | 8.4 | 2459353 | 2021-05-18 | 2459820 | 2022-08-28 | -467 | SVO |
| 14 | 8.4 | 2459749 | 2022-06-18 | 2460220 | 2023-10-02 | -471 | SVO |
| 15 | 8.5 | 2460145 | 2023-07-19 | 2460620 | 2024-11-05 | -475 | SVO |
| 16 | 8.3 | 2460534 | 2024-08-11 | 2461020 | 2025-12-10 | -486 | 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. |