| E | Mag | O (JD) | O (dat) | C (JD) | C (Dat) | O-C | Source |
| -159 | 2411230 | 1889-08-15 | 2410764 | 1888-05-06 | 466 | SVO | |
| -150 | 2413545 | 1895-12-17 | 2413151 | 1894-11-18 | 394 | GuL, 1918, 1.1 | |
| -149 | 2413796 | 1896-08-24 | 2413416 | 1895-08-10 | 380 | GuL, 1918, 1.1 | |
| -146 | 2414575 | 1898-10-12 | 2414212 | 1897-10-14 | 363 | SVO | |
| -145 | 2414820 | 1899-06-14 | 2414477 | 1898-07-06 | 343 | SVO | |
| -143 | 2415330 | 1900-11-06 | 2415007 | 1899-12-18 | 323 | SVO | |
| -142 | 2415590 | 1901-07-24 | 2415273 | 1900-09-10 | 317 | SVO | |
| -140 | 2416110 | 1902-12-26 | 2415803 | 1902-02-22 | 307 | SVO | |
| -139 | 2416365 | 1903-09-07 | 2416068 | 1902-11-14 | 297 | SVO | |
| -138 | 2416625 | 1904-05-24 | 2416333 | 1903-08-06 | 292 | SVO | |
| -136 | 2417150 | 1905-10-31 | 2416864 | 1905-01-18 | 286 | SVO | |
| -135 | 2417409 | 1906-07-17 | 2417129 | 1905-10-10 | 280 | SVO | |
| -133 | 2417925 | 1907-12-15 | 2417659 | 1907-03-24 | 266 | SVO | |
| -132 | 2418180 | 1908-08-26 | 2417925 | 1907-12-15 | 255 | SVO | |
| -129 | 2418970 | 1910-10-25 | 2418720 | 1910-02-17 | 250 | SVO | |
| -128 | 2419225 | 1911-07-07 | 2418985 | 1910-11-09 | 240 | SVO | |
| -126 | 2419730 | 1912-11-23 | 2419516 | 1912-04-23 | 214 | SVO | |
| -125 | 2419990 | 1913-08-10 | 2419781 | 1913-01-13 | 209 | SVO | |
| -122 | 2420770 | 1915-09-29 | 2420577 | 1915-03-20 | 193 | SVO | |
| -121 | 2421030 | 1916-06-15 | 2420842 | 1915-12-10 | 188 | SVO | |
| -119 | 2421545 | 1917-11-12 | 2421372 | 1917-05-23 | 173 | SVO | |
| -116 | 10.5 | 2422336 | 1920-01-12 | 2422168 | 1919-07-28 | 168 | SVO |
| -115 | 10.7 | 2422595 | 1920-09-27 | 2422433 | 1920-04-18 | 162 | SVO |
| -114 | 2422856 | 1921-06-15 | 2422698 | 1921-01-08 | 158 | AAVSO | |
| -113 | 2423115 | 1922-03-01 | 2422963 | 1921-09-30 | 152 | AAVSO | |
| -112 | 10.4 | 2423377 | 1922-11-18 | 2423229 | 1922-06-23 | 148 | SVO |
| -111 | 10.1 | 2423645 | 1923-08-13 | 2423494 | 1923-03-15 | 151 | AAVSO |
| -110 | 10.5 | 2423915 | 1924-05-09 | 2423759 | 1923-12-05 | 156 | AAVSO |
| -109 | 10.9 | 2424185 | 1925-02-03 | 2424024 | 1924-08-26 | 161 | SVO |
| -108 | 10.3 | 2424443 | 1925-10-19 | 2424289 | 1925-05-18 | 154 | AAVSO |
| -107 | 2424688 | 1926-06-21 | 2424555 | 1926-02-08 | 133 | AAVSO | |
| -106 | 11.2 | 2424953 | 1927-03-13 | 2424820 | 1926-10-31 | 133 | AAVSO |
| -105 | 10.3 | 2425214 | 1927-11-29 | 2425085 | 1927-07-23 | 129 | SVO |
| -104 | 10.9 | 2425474 | 1928-08-15 | 2425350 | 1928-04-13 | 124 | AAVSO |
| -103 | 10.7 | 2425734 | 1929-05-02 | 2425615 | 1929-01-03 | 119 | AAVSO |
| -102 | 11.1 | 2425998 | 1930-01-21 | 2425881 | 1929-09-26 | 117 | AAVSO |
| -101 | 10.6 | 2426257 | 1930-10-07 | 2426146 | 1930-06-18 | 111 | AAVSO |
| -99 | 10.4 | 2426777 | 1932-03-10 | 2426676 | 1931-11-30 | 101 | AAVSO |
| -98 | 10.5 | 2427027 | 1932-11-15 | 2426941 | 1932-08-21 | 86 | AAVSO |
| -97 | 2427297 | 1933-08-12 | 2427207 | 1933-05-14 | 90 | AAVSO | |
| -95 | 10.6 | 2427824 | 1935-01-21 | 2427737 | 1934-10-26 | 87 | AAVSO |
| -94 | 10.6 | 2428085 | 1935-10-09 | 2428002 | 1935-07-18 | 83 | AAVSO |
| -93 | 2428340 | 1936-06-20 | 2428267 | 1936-04-08 | 73 | SVO | |
| -92 | 10.3 | 2428605 | 1937-03-12 | 2428533 | 1936-12-30 | 72 | AAVSO |
| -91 | 10.8 | 2428868 | 1937-11-30 | 2428798 | 1937-09-21 | 70 | AAVSO |
| -90 | 2429112 | 1938-08-01 | 2429063 | 1938-06-13 | 49 | AAVSO | |
| -89 | 2429383 | 1939-04-29 | 2429328 | 1939-03-05 | 55 | AAVSO | |
| -88 | 10.8 | 2429639 | 1940-01-10 | 2429593 | 1939-11-25 | 46 | AAVSO |
| -87 | 10.8 | 2429895 | 1940-09-22 | 2429859 | 1940-08-17 | 36 | AAVSO |
| -86 | 2430160 | 1941-06-14 | 2430124 | 1941-05-09 | 36 | SVO | |
| -85 | 2430415 | 1942-02-24 | 2430389 | 1942-01-29 | 26 | AAVSO | |
| -84 | 10.2 | 2430674 | 1942-11-10 | 2430654 | 1942-10-21 | 20 | AAVSO |
| -83 | 2430935 | 1943-07-29 | 2430919 | 1943-07-13 | 16 | SVO | |
| -81 | 2431460 | 1945-01-04 | 2431450 | 1944-12-25 | 10 | SVO | |
| -80 | 2431734 | 1945-10-05 | 2431715 | 1945-09-16 | 19 | SVO | |
| -79 | 2432010 | 1946-07-08 | 2431980 | 1946-06-08 | 30 | SVO | |
| -77 | 2432520 | 1947-11-30 | 2432511 | 1947-11-21 | 9 | SVO | |
| -76 | 2432787 | 1948-08-23 | 2432776 | 1948-08-12 | 11 | SVO | |
| -75 | 2433038 | 1949-05-01 | 2433041 | 1949-05-04 | -3 | AAVSO | |
| -74 | 9.9 | 2433310 | 1950-01-28 | 2433306 | 1950-01-24 | 4 | AAVSO |
| -73 | 2433567 | 1950-10-12 | 2433571 | 1950-10-16 | -4 | AAVSO | |
| -72 | 2433851 | 1951-07-23 | 2433837 | 1951-07-09 | 14 | AAVSO | |
| -71 | 2434113 | 1952-04-10 | 2434102 | 1952-03-30 | 11 | AAVSO | |
| -70 | 11.1 | 2434375 | 1952-12-28 | 2434367 | 1952-12-20 | 8 | SVO |
| -69 | 10.9 | 2434629 | 1953-09-08 | 2434632 | 1953-09-11 | -3 | SVO |
| -68 | 10.4 | 2434878 | 1954-05-15 | 2434897 | 1954-06-03 | -19 | SVO |
| -67 | 10.8 | 2435144 | 1955-02-05 | 2435163 | 1955-02-24 | -19 | SVO |
| -66 | 10.5 | 2435405 | 1955-10-24 | 2435428 | 1955-11-16 | -23 | SVO |
| -65 | 10.8 | 2435682 | 1956-07-27 | 2435693 | 1956-08-07 | -11 | SVO |
| -64 | 11.1 | 2435950 | 1957-04-21 | 2435958 | 1957-04-29 | -8 | SVO |
| -63 | 11.0 | 2436212 | 1958-01-08 | 2436223 | 1958-01-19 | -11 | SVO |
| -62 | 10.7 | 2436466 | 1958-09-19 | 2436489 | 1958-10-12 | -23 | SVO |
| -61 | 10.6 | 2436736 | 1959-06-16 | 2436754 | 1959-07-04 | -18 | SVO |
| -60 | 10.8 | 2436990 | 1960-02-25 | 2437019 | 1960-03-25 | -29 | SVO |
| -59 | 10.9 | 2437254 | 1960-11-15 | 2437284 | 1960-12-15 | -30 | SVO |
| -58 | 10.4 | 2437509 | 1961-07-28 | 2437549 | 1961-09-06 | -40 | SVO |
| -57 | 11.0 | 2437775 | 1962-04-20 | 2437815 | 1962-05-30 | -40 | SVO |
| -56 | 10.7 | 2438036 | 1963-01-06 | 2438080 | 1963-02-19 | -44 | SVO |
| -55 | 10.8 | 2438296 | 1963-09-23 | 2438345 | 1963-11-11 | -49 | SVO |
| -54 | 10.6 | 2438550 | 1964-06-03 | 2438610 | 1964-08-02 | -60 | AAVSO |
| -53 | 10.9 | 2438811 | 1965-02-19 | 2438875 | 1965-04-24 | -64 | SVO |
| -52 | 10.6 | 2439075 | 1965-11-10 | 2439141 | 1966-01-15 | -66 | SVO |
| -51 | 10.8 | 2439345 | 1966-08-07 | 2439406 | 1966-10-07 | -61 | SVO |
| -50 | 10.9 | 2439597 | 1967-04-16 | 2439671 | 1967-06-29 | -74 | SVO |
| -49 | 10.9 | 2439861 | 1968-01-05 | 2439936 | 1968-03-20 | -75 | SVO |
| -48 | 10.5 | 2440119 | 1968-09-19 | 2440201 | 1968-12-10 | -82 | SVO |
| -47 | 10.6 | 2440380 | 1969-06-07 | 2440467 | 1969-09-02 | -87 | SVO |
| -46 | 10.5 | 2440639 | 1970-02-21 | 2440732 | 1970-05-25 | -93 | SVO |
| -45 | 10.8 | 2440897 | 1970-11-06 | 2440997 | 1971-02-14 | -100 | SVO |
| -44 | 10.9 | 2441155 | 1971-07-22 | 2441262 | 1971-11-06 | -107 | SVO |
| -43 | 2441419 | 1972-04-11 | 2441527 | 1972-07-28 | -108 | AAVSO | |
| -42 | 2441679 | 1972-12-27 | 2441793 | 1973-04-20 | -114 | AAVSO | |
| -41 | 10.8 | 2441939 | 1973-09-13 | 2442058 | 1974-01-10 | -119 | AAVSO |
| -40 | 10.5 | 2442204 | 1974-06-05 | 2442323 | 1974-10-02 | -119 | AAVSO |
| -39 | 11.0 | 2442452 | 1975-02-08 | 2442588 | 1975-06-24 | -136 | SVO |
| -38 | 10.5 | 2442717 | 1975-10-31 | 2442853 | 1976-03-15 | -136 | SVO |
| -37 | 10.8 | 2442972 | 1976-07-12 | 2443119 | 1976-12-06 | -147 | AAVSO |
| -36 | 10.9 | 2443236 | 1977-04-02 | 2443384 | 1977-08-28 | -148 | AAVSO |
| -35 | 10.9 | 2443496 | 1977-12-18 | 2443649 | 1978-05-20 | -153 | SVO |
| -34 | 10.9 | 2443765 | 1978-09-13 | 2443914 | 1979-02-09 | -149 | SVO |
| -33 | 10.7 | 2444020 | 1979-05-26 | 2444179 | 1979-11-01 | -159 | AAVSO |
| -32 | 10.6 | 2444287 | 1980-02-17 | 2444445 | 1980-07-24 | -158 | AAVSO |
| -31 | 10.7 | 2444550 | 1980-11-06 | 2444710 | 1981-04-15 | -160 | SVO |
| -30 | 11.0 | 2444814 | 1981-07-28 | 2444975 | 1982-01-05 | -161 | SVO |
| -29 | 10.3 | 2445074 | 1982-04-14 | 2445240 | 1982-09-27 | -166 | AAVSO |
| -28 | 10.3 | 2445351 | 1983-01-16 | 2445505 | 1983-06-19 | -154 | AAVSO |
| -27 | 11.1 | 2445605 | 1983-09-27 | 2445771 | 1984-03-11 | -166 | SVO |
| -26 | 10.9 | 2445867 | 1984-06-15 | 2446036 | 1984-12-01 | -169 | AAVSO |
| -25 | 10.8 | 2446129 | 1985-03-04 | 2446301 | 1985-08-23 | -172 | AAVSO |
| -24 | 10.7 | 2446403 | 1985-12-03 | 2446566 | 1986-05-15 | -163 | SVO |
| -23 | 10.6 | 2446657 | 1986-08-14 | 2446831 | 1987-02-04 | -174 | SVO |
| -22 | 11.1 | 2446915 | 1987-04-29 | 2447097 | 1987-10-28 | -182 | AAVSO |
| -21 | 10.6 | 2447167 | 1988-01-06 | 2447362 | 1988-07-19 | -195 | SVO |
| -20 | 10.8 | 2447434 | 1988-09-29 | 2447627 | 1989-04-10 | -193 | SVO |
| -19 | 2447691 | 1989-06-13 | 2447892 | 1989-12-31 | -201 | AAVSO | |
| -18 | 2447954 | 1990-03-03 | 2448157 | 1990-09-22 | -203 | AAVSO | |
| -17 | 10.7 | 2448216 | 1990-11-20 | 2448423 | 1991-06-15 | -207 | SVO |
| -16 | 10.7 | 2448483 | 1991-08-14 | 2448688 | 1992-03-06 | -205 | SVO |
| -15 | 2448734 | 1992-04-21 | 2448953 | 1992-11-26 | -219 | AAVSO | |
| -14 | 2449006 | 1993-01-18 | 2449218 | 1993-08-18 | -212 | AAVSO | |
| -13 | 10.9 | 2449274 | 1993-10-13 | 2449483 | 1994-05-10 | -209 | SVO |
| -12 | 2449548 | 1994-07-14 | 2449749 | 1995-01-31 | -201 | AAVSO | |
| -11 | 2449805 | 1995-03-28 | 2450014 | 1995-10-23 | -209 | AAVSO | |
| -10 | 10.8 | 2450042 | 1995-11-20 | 2450279 | 1996-07-14 | -237 | SVO |
| -9 | 2450306 | 1996-08-10 | 2450544 | 1997-04-05 | -238 | AAVSO | |
| -8 | 2450573 | 1997-05-04 | 2450809 | 1997-12-26 | -236 | AAVSO | |
| -7 | 2450829 | 1998-01-15 | 2451075 | 1998-09-18 | -246 | AAVSO | |
| -6 | 10.9 | 2451094 | 1998-10-07 | 2451340 | 1999-06-10 | -246 | SVO |
| -5 | 2451352 | 1999-06-22 | 2451605 | 2000-03-01 | -253 | AAVSO | |
| -4 | 2451614 | 2000-03-10 | 2451870 | 2000-11-21 | -256 | AAVSO | |
| -3 | 10.5 | 2451881 | 2000-12-02 | 2452135 | 2001-08-13 | -254 | SVO |
| -2 | 10.1 | 2452139 | 2001-08-17 | 2452401 | 2002-05-06 | -262 | SVO |
| -1 | 2452394 | 2002-04-29 | 2452666 | 2003-01-26 | -272 | AAVSO | |
| 0 | 10.5 | 2452668 | 2003-01-28 | 2452931 | 2003-10-18 | -263 | SVO |
| 1 | 10.2 | 2452936 | 2003-10-23 | 2453196 | 2004-07-09 | -260 | SVO |
| 2 | 2453201 | 2004-07-14 | 2453461 | 2005-03-31 | -260 | AAVSO | |
| 3 | 2453463 | 2005-04-02 | 2453727 | 2005-12-22 | -264 | AAVSO | |
| 4 | 10.2 | 2453729 | 2005-12-24 | 2453992 | 2006-09-13 | -263 | SVO |
| 5 | 10.3 | 2453992 | 2006-09-13 | 2454257 | 2007-06-05 | -265 | SVO |
| 6 | 2454262 | 2007-06-10 | 2454522 | 2008-02-25 | -260 | AAVSO | |
| 7 | 10.1 | 2454529 | 2008-03-03 | 2454787 | 2008-11-16 | -258 | SVO |
| 8 | 10.0 | 2454786 | 2008-11-15 | 2455053 | 2009-08-09 | -267 | SVO |
| 9 | 10.1 | 2455051 | 2009-08-07 | 2455318 | 2010-05-01 | -267 | SVO |
| 10 | 2455323 | 2010-05-06 | 2455583 | 2011-01-21 | -260 | AAVSO | |
| 11 | 10.8 | 2455583 | 2011-01-21 | 2455848 | 2011-10-13 | -265 | AAVSO |
| 12 | 10.4 | 2455844 | 2011-10-09 | 2456113 | 2012-07-04 | -269 | AAVSO |
| 13 | 2456100 | 2012-06-21 | 2456379 | 2013-03-27 | -279 | AAVSO | |
| 14 | 2456356 | 2013-03-04 | 2456644 | 2013-12-17 | -288 | AAVSO | |
| 15 | 10.4 | 2456618 | 2013-11-21 | 2456909 | 2014-09-08 | -291 | AAVSO |
| 16 | 10.5 | 2456876 | 2014-08-06 | 2457174 | 2015-05-31 | -298 | SVO |
| 17 | 2457142 | 2015-04-29 | 2457439 | 2016-02-20 | -297 | AAVSO | |
| 18 | 11.3 | 2457387 | 2015-12-30 | 2457705 | 2016-11-12 | -318 | AAVSO |
| 19 | 10.5 | 2457654 | 2016-09-22 | 2457970 | 2017-08-04 | -316 | SVO |
| 20 | 10.6 | 2457917 | 2017-06-12 | 2458235 | 2018-04-26 | -318 | AAVSO |
| 21 | 10.3 | 2458168 | 2018-02-18 | 2458500 | 2019-01-16 | -332 | SVO |
| 22 | 9.9 | 2458438 | 2018-11-15 | 2458765 | 2019-10-08 | -327 | SVO |
| 23 | 9.9 | 2458702 | 2019-08-06 | 2459031 | 2020-06-30 | -329 | SVO |
| 24 | 2458964 | 2020-04-24 | 2459296 | 2021-03-22 | -332 | SVO | |
| 25 | 2459220 | 2021-01-05 | 2459561 | 2021-12-12 | -341 | SVO | |
| 26 | 9.9 | 2459479 | 2021-09-21 | 2459826 | 2022-09-03 | -347 | SVO |
| 27 | 2459740 | 2022-06-09 | 2460091 | 2023-05-26 | -351 | 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. |