Maxima for R CVn
Period: 328.53, Epoch: 2443586
Back to main page  Mean light curve  Period diagram

E Mag O (JD) O (dat) C (JD) C (Dat) O-C Source
-100   2410742 1888-04-14 2410733 1888-04-05 9 GuL, 1918, 1.1
-97   2411735 1891-01-02 2411719 1890-12-17 16 AnHar, 1909, vol 55, p 95
-96   2412073 1891-12-06 2412047 1891-11-10 26 AnHar, 1909, vol 55, p 95
-95   2412401 1892-10-29 2412376 1892-10-04 25 GuL, 1918, 1.1
-94   2412742 1893-10-05 2412704 1893-08-28 38 GuL, 1918, 1.1, AnHar, 1909, vol 55, p 95
-93   2413067 1894-08-26 2413033 1894-07-23 34 AnHar, 1909, vol 55, p 95
-92   2413400 1895-07-25 2413361 1895-06-16 39 AnHar, 1909, vol 55, p 95
-91   2413768 1896-07-27 2413690 1896-05-10 78 AnHar, 1909, vol 55, p 95
-90   2414065 1897-05-20 2414018 1897-04-03 47 AnHar, 1909, vol 55, p 95
-89   2414397 1898-04-17 2414347 1898-02-26 50 AnHar, 1909, vol 55, p 95
-88   2414720 1899-03-06 2414675 1899-01-20 45 SVO
-87   2415030 1900-01-10 2415004 1899-12-15 26 AnHar, 1952, vol 118
-86   2415375 1900-12-21 2415332 1900-11-08 43 AnHar, 1952, vol 118
-85   2415698 1901-11-09 2415661 1901-10-03 37 AnHar, 1909, vol 55, p 95
-84   2416011 1902-09-18 2415989 1902-08-27 22 AnHar, 1909, vol 55, p 95
-83   2416348 1903-08-21 2416318 1903-07-22 30 AnHar, 1909, vol 55, p 95
-82   2416672 1904-07-10 2416647 1904-06-15 25 AnHar, 1909, vol 55, p 95
-81   2416973 1905-05-07 2416975 1905-05-09 -2 AAVSO
-80 7.0 2417287 1906-03-17 2417304 1906-04-03 -17 AAVSO
-79   2417622 1907-02-15 2417632 1907-02-25 -10 AAVSO
-78   2417934 1907-12-24 2417961 1908-01-20 -27 AAVSO
-77 8.2 2418269 1908-11-23 2418289 1908-12-13 -20 AAVSO
-76 8.1 2418609 1909-10-29 2418618 1909-11-07 -9 AAVSO
-75 8.2 2418925 1910-09-10 2418946 1910-10-01 -21 AAVSO
-74 7.3 2419263 1911-08-14 2419275 1911-08-26 -12 AAVSO
-73 7.4 2419587 1912-07-03 2419603 1912-07-19 -16 AAVSO
-72 7.6 2419909 1913-05-21 2419932 1913-06-13 -23 AAVSO
-71 7.0 2420233 1914-04-10 2420260 1914-05-07 -27 AAVSO
-70 7.6 2420559 1915-03-02 2420589 1915-04-01 -30 SVO
-69 7.4 2420885 1916-01-22 2420917 1916-02-23 -32 SVO
-68 7.4 2421197 1916-11-29 2421246 1917-01-17 -49 SVO
-67 7.4 2421531 1917-10-29 2421574 1917-12-11 -43 SVO
-66 7.6 2421856 1918-09-19 2421903 1918-11-05 -47 SVO
-65 7.6 2422182 1919-08-11 2422232 1919-09-30 -50 SVO
-64 7.7 2422504 1920-06-28 2422560 1920-08-23 -56 SVO
-63 7.5 2422830 1921-05-20 2422889 1921-07-18 -59 SVO
-62 7.7 2423159 1922-04-14 2423217 1922-06-11 -58 SVO
-61 7.9 2423496 1923-03-17 2423546 1923-05-06 -50 SVO
-60 7.5 2423825 1924-02-09 2423874 1924-03-29 -49 SVO
-59 7.2 2424146 1924-12-26 2424203 1925-02-21 -57 SVO
-58 7.7 2424456 1925-11-01 2424531 1926-01-15 -75 SVO
-57 7.3 2424783 1926-09-24 2424860 1926-12-10 -77 SVO
-56 7.3 2425095 1927-08-02 2425188 1927-11-03 -93 SVO
-55 7.5 2425428 1928-06-30 2425517 1928-09-27 -89 SVO
-54 7.6 2425758 1929-05-26 2425845 1929-08-21 -87 SVO
-53 7.8 2426101 1930-05-04 2426174 1930-07-16 -73 SVO
-52 7.8 2426425 1931-03-24 2426502 1931-06-09 -77 SVO
-51 7.7 2426750 1932-02-12 2426831 1932-05-03 -81 SVO
-50 7.7 2427080 1933-01-07 2427160 1933-03-28 -80 SVO
-49 7.5 2427403 1933-11-26 2427488 1934-02-19 -85 SVO
-48 7.8 2427739 1934-10-28 2427817 1935-01-14 -78 SVO
-47 7.7 2428069 1935-09-23 2428145 1935-12-08 -76 SVO
-46 7.5 2428400 1936-08-19 2428474 1936-11-01 -74 SVO
-45 7.5 2428728 1937-07-13 2428802 1937-09-25 -74 SVO
-44 7.6 2429065 1938-06-15 2429131 1938-08-20 -66 SVO
-43 8.0 2429414 1939-05-30 2429459 1939-07-14 -45 SVO
-42 7.8 2429742 1940-04-22 2429788 1940-06-07 -46 SVO
-41 7.4 2430074 1941-03-20 2430116 1941-05-01 -42 SVO
-40 8.0 2430421 1942-03-02 2430445 1942-03-26 -24 SVO
-39 7.6 2430754 1943-01-29 2430773 1943-02-17 -19 SVO
-38 7.7 2431097 1944-01-07 2431102 1944-01-12 -5 SVO
-37 7.4 2431423 1944-11-28 2431430 1944-12-05 -7 SVO
-36 7.2 2431753 1945-10-24 2431759 1945-10-30 -6 SVO
-35 7.8 2432083 1946-09-19 2432087 1946-09-23 -4 SVO
-34 7.5 2432416 1947-08-18 2432416 1947-08-18 0 SVO
-33 7.9 2432743 1948-07-10 2432745 1948-07-12 -2 SVO
-32 7.5 2433074 1949-06-06 2433073 1949-06-05 1 SVO
-31 8.0 2433418 1950-05-16 2433402 1950-04-30 16 SVO
-30 7.7 2433750 1951-04-13 2433730 1951-03-24 20 SVO
-29 7.8 2434069 1952-02-26 2434059 1952-02-16 10 SVO
-28 8.2 2434399 1953-01-21 2434387 1953-01-09 12 AAVSO
-27 7.5 2434714 1953-12-02 2434716 1953-12-04 -2 SVO
-26 7.6 2435034 1954-10-18 2435044 1954-10-28 -10 SVO
-25 7.9 2435380 1955-09-29 2435373 1955-09-22 7 AAVSO
-24 7.7 2435702 1956-08-16 2435701 1956-08-15 1 SVO
-23 7.7 2436028 1957-07-08 2436030 1957-07-10 -2 SVO
-22 7.6 2436354 1958-05-30 2436358 1958-06-03 -4 SVO
-21 7.2 2436674 1959-04-15 2436687 1959-04-28 -13 SVO
-20 8.0 2437013 1960-03-19 2437015 1960-03-21 -2 SVO
-19 7.8 2437337 1961-02-06 2437344 1961-02-13 -7 SVO
-18 7.6 2437653 1961-12-19 2437672 1962-01-07 -19 SVO
-17 8.2 2437988 1962-11-19 2438001 1962-12-02 -13 SVO
-16 7.6 2438325 1963-10-22 2438330 1963-10-27 -5 SVO
-15 7.8 2438652 1964-09-13 2438658 1964-09-19 -6 SVO
-14 8.1 2438995 1965-08-22 2438987 1965-08-14 8 SVO
-13 7.5 2439316 1966-07-09 2439315 1966-07-08 1 SVO
-12 7.6 2439647 1967-06-05 2439644 1967-06-02 3 SVO
-11 7.4 2439968 1968-04-21 2439972 1968-04-25 -4 SVO
-10 7.3 2440294 1969-03-13 2440301 1969-03-20 -7 SVO
-9 7.6 2440625 1970-02-07 2440629 1970-02-11 -4 SVO
-8 7.9 2440954 1971-01-02 2440958 1971-01-06 -4 SVO
-7 7.4 2441282 1971-11-26 2441286 1971-11-30 -4 SVO
-6 8.1 2441624 1972-11-02 2441615 1972-10-24 9 SVO
-5 7.6 2441950 1973-09-24 2441943 1973-09-17 7 SVO
-4 7.3 2442273 1974-08-13 2442272 1974-08-12 1 SVO
-3 7.7 2442605 1975-07-11 2442600 1975-07-06 5 SVO
-2 7.6 2442934 1976-06-04 2442929 1976-05-30 5 SVO
-1 7.5 2443258 1977-04-24 2443257 1977-04-23 1 SVO
0 7.2 2443585 1978-03-17 2443586 1978-03-18 -1 SVO
1 7.9 2443914 1979-02-09 2443915 1979-02-10 -1 SVO
2 7.5 2444241 1980-01-02 2444243 1980-01-04 -2 SVO
3 7.7 2444578 1980-12-04 2444572 1980-11-28 6 SVO
4 7.5 2444898 1981-10-20 2444900 1981-10-22 -2 SVO
5 7.3 2445223 1982-09-10 2445229 1982-09-16 -6 SVO
6 8.2 2445554 1983-08-07 2445557 1983-08-10 -3 SVO
7 7.5 2445874 1984-06-22 2445886 1984-07-04 -12 SVO
8 7.5 2446196 1985-05-10 2446214 1985-05-28 -18 SVO
9 7.6 2446528 1986-04-07 2446543 1986-04-22 -15 SVO
10 7.6 2446850 1987-02-23 2446871 1987-03-16 -21 SVO
11 7.5 2447168 1988-01-07 2447200 1988-02-08 -32 SVO
12 7.5 2447484 1988-11-18 2447528 1989-01-01 -44 SVO
13 7.8 2447818 1989-10-18 2447857 1989-11-26 -39 SVO
14 7.5 2448144 1990-09-09 2448185 1990-10-20 -41 SVO
15 7.4 2448478 1991-08-09 2448514 1991-09-14 -36 SVO
16 7.9 2448816 1992-07-12 2448842 1992-08-07 -26 SVO
17 7.3 2449147 1993-06-08 2449171 1993-07-02 -24 SVO
18 8.2 2449478 1994-05-05 2449500 1994-05-27 -22 SVO
19 7.6 2449814 1995-04-06 2449828 1995-04-20 -14 SVO
20 8.0 2450136 1996-02-22 2450157 1996-03-14 -21 SVO
21 7.3 2450461 1997-01-12 2450485 1997-02-05 -24 SVO
22 7.8 2450792 1997-12-09 2450814 1997-12-31 -22 SVO
23 7.6 2451121 1998-11-03 2451142 1998-11-24 -21 SVO
24 7.6 2451444 1999-09-22 2451471 1999-10-19 -27 SVO
25 7.7 2451781 2000-08-24 2451799 2000-09-11 -18 SVO
26 7.5 2452110 2001-07-19 2452128 2001-08-06 -18 SVO
27 7.6 2452446 2002-06-20 2452456 2002-06-30 -10 SVO
28 7.3 2452771 2003-05-11 2452785 2003-05-25 -14 SVO
29 7.9 2453109 2004-04-13 2453113 2004-04-17 -4 SVO
30 7.8 2453446 2005-03-16 2453442 2005-03-12 4 SVO
31 7.7 2453771 2006-02-04 2453770 2006-02-03 1 SVO
32 7.2 2454103 2007-01-02 2454099 2006-12-29 4 SVO
33 7.9 2454432 2007-11-27 2454427 2007-11-22 5 SVO
34 7.4 2454765 2008-10-25 2454756 2008-10-16 9 SVO
35 7.7 2455093 2009-09-18 2455085 2009-09-10 8 SVO
36 7.4 2455427 2010-08-18 2455413 2010-08-04 14 SVO
37 7.7 2455755 2011-07-12 2455742 2011-06-29 13 SVO
38 7.1 2456076 2012-05-28 2456070 2012-05-22 6 SVO
39 8.0 2456411 2013-04-28 2456399 2013-04-16 12 SVO
40 7.7 2456742 2014-03-25 2456727 2014-03-10 15 SVO
41 7.6 2457066 2015-02-12 2457056 2015-02-02 10 SVO
42 7.5 2457401 2016-01-13 2457384 2015-12-27 17 SVO
43 7.8 2457729 2016-12-06 2457713 2016-11-20 16 SVO
44 7.5 2458055 2017-10-28 2458041 2017-10-14 14 SVO
45 7.9 2458379 2018-09-17 2458370 2018-09-08 9 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.