Maxima for R Cyg
Period: 426.45, Epoch: 2444595
Back to main page  Mean light curve  Period diagram

E Mag O (JD) O (dat) C (JD) C (Dat) O-C Source
-109 8.1 2398107 1853-09-10 2398112 1853-09-15 -5 SVO
-108 7.9 2398531 1854-11-08 2398538 1854-11-15 -7 SVO
-107 7.8 2398951 1856-01-02 2398965 1856-01-16 -14 SVO
-106 8.1 2399388 1857-03-14 2399391 1857-03-17 -3 SVO
-105 7.4 2399810 1858-05-10 2399818 1858-05-18 -8 SVO
-104 7.0 2400219 1859-06-23 2400244 1859-07-18 -25 SVO
-103 7.3 2400662 1860-09-08 2400671 1860-09-17 -9 SVO
-102 7.7 2401083 1861-11-03 2401097 1861-11-17 -14 SVO
-99 7.1 2402329 1865-04-02 2402376 1865-05-19 -47 SVO
-98 8.2 2402773 1866-06-20 2402803 1866-07-20 -30 SVO
-97 7.4 2403199 1867-08-20 2403229 1867-09-19 -30 SVO
-96   2403627 1868-10-21 2403656 1868-11-19 -29 AnHar, 1909, vol 55, p 95
-95 7.2 2404037 1869-12-05 2404082 1870-01-19 -45 SVO
-94 7.7 2404492 1871-03-05 2404509 1871-03-22 -17 SVO
-93 6.8 2404903 1872-04-19 2404935 1872-05-21 -32 SVO
-91 6.7 2405744 1874-08-08 2405788 1874-09-21 -44 SVO
-90   2406191 1875-10-29 2406215 1875-11-22 -24 MiPul, 1910, vol 3, p 221
-88   2407035 1878-02-19 2407067 1878-03-23 -32 AnHar, 1909, vol 55, p 95
-87   2407453 1879-04-13 2407494 1879-05-24 -41 AnHar, 1909, vol 55, p 95
-86   2407872 1880-06-05 2407920 1880-07-23 -48 AnHar, 1909, vol 55, p 95
-85   2408283 1881-07-21 2408347 1881-09-23 -64 AnHar, 1909, vol 55, p 95
-84   2408732 1882-10-13 2408773 1882-11-23 -41 AnHar, 1909, vol 55, p 95
-83   2409159 1883-12-14 2409200 1884-01-24 -41 AnHar, 1909, vol 55, p 95
-82   2409589 1885-02-16 2409626 1885-03-25 -37 AnHar, 1909, vol 55, p 95
-81   2409988 1886-03-22 2410053 1886-05-26 -65 AnHar, 1909, vol 55, p 95
-80   2410451 1887-06-28 2410479 1887-07-26 -28 AnHar, 1909, vol 55, p 95
-79   2410838 1888-07-19 2410905 1888-09-24 -67 AnHar, 1909, vol 55, p 95
-78   2411287 1889-10-11 2411332 1889-11-25 -45 AnHar, 1909, vol 55, p 95
-77   2411697 1890-11-25 2411758 1891-01-25 -61 AnHar, 1909, vol 55, p 95
-76 7.1 2412146 1892-02-17 2412185 1892-03-27 -39 SVO
-75   2412569 1893-04-15 2412611 1893-05-27 -42 AnHar, 1909, vol 55, p 95
-74   2412995 1894-06-15 2413038 1894-07-28 -43 AnHar, 1909, vol 55, p 95
-73   2413413 1895-08-07 2413464 1895-09-27 -51 AnHar, 1909, vol 55, p 95
-72   2413863 1896-10-30 2413891 1896-11-27 -28 AnHar, 1909, vol 55, p 95
-71   2414272 1897-12-13 2414317 1898-01-27 -45 AnHar, 1909, vol 55, p 95
-70   2414705 1899-02-19 2414744 1899-03-30 -39 AnHar, 1909, vol 55, p 95
-69   2415123 1900-04-13 2415170 1900-05-30 -47 AnHar, 1909, vol 55, p 95
-68 7.3 2415545 1901-06-09 2415596 1901-07-30 -51 SVO
-67 7.6 2415978 1902-08-16 2416023 1902-09-30 -45 SVO
-66 8.1 2416426 1903-11-07 2416449 1903-11-30 -23 SVO
-65 7.2 2416848 1905-01-02 2416876 1905-01-30 -28 SVO
-64 7.5 2417283 1906-03-13 2417302 1906-04-01 -19 SVO
-63 7.4 2417711 1907-05-15 2417729 1907-06-02 -18 SVO
-62 7.6 2418134 1908-07-11 2418155 1908-08-01 -21 SVO
-61 6.9 2418526 1909-08-07 2418582 1909-10-02 -56 SVO
-60 8.1 2418977 1910-11-01 2419008 1910-12-02 -31 SVO
-59 7.1 2419372 1911-12-01 2419434 1912-02-01 -62 SVO
-58 7.8 2419815 1913-02-16 2419861 1913-04-03 -46 SVO
-57 7.2 2420220 1914-03-28 2420287 1914-06-03 -67 SVO
-56 7.4 2420641 1915-05-23 2420714 1915-08-04 -73 SVO
-55 6.9 2421049 1916-07-04 2421140 1916-10-03 -91 SVO
-54 8.0 2421491 1917-09-19 2421567 1917-12-04 -76 SVO
-53 7.1 2421899 1918-11-01 2421993 1919-02-03 -94 SVO
-52 8.2 2422347 1920-01-23 2422420 1920-04-05 -73 SVO
-51 6.9 2422741 1921-02-20 2422846 1921-06-05 -105 SVO
-50 7.4 2423187 1922-05-12 2423273 1922-08-06 -86 SVO
-49 6.8 2423586 1923-06-15 2423699 1923-10-06 -113 SVO
-48 7.7 2424034 1924-09-05 2424125 1924-12-05 -91 SVO
-47 7.1 2424453 1925-10-29 2424552 1926-02-05 -99 SVO
-46 7.0 2424895 1927-01-14 2424978 1927-04-07 -83 SVO
-45 7.2 2425327 1928-03-21 2425405 1928-06-07 -78 SVO
-44 7.4 2425759 1929-05-27 2425831 1929-08-07 -72 SVO
-43 7.0 2426177 1930-07-19 2426258 1930-10-08 -81 SVO
-42 7.5 2426624 1931-10-09 2426684 1931-12-08 -60 SVO
-41 6.9 2427032 1932-11-20 2427111 1933-02-07 -79 SVO
-40 7.9 2427471 1934-02-02 2427537 1934-04-09 -66 SVO
-39 7.3 2427891 1935-03-29 2427963 1935-06-09 -72 SVO
-38 7.8 2428332 1936-06-12 2428390 1936-08-09 -58 SVO
-37 8.0 2428779 1937-09-02 2428816 1937-10-09 -37 SVO
-36 7.4 2429190 1938-10-18 2429243 1938-12-10 -53 SVO
-35 7.9 2429628 1939-12-30 2429669 1940-02-09 -41 SVO
-34 7.6 2430056 1941-03-02 2430096 1941-04-11 -40 SVO
-33 7.2 2430461 1942-04-11 2430522 1942-06-11 -61 SVO
-32 8.4 2430909 1943-07-03 2430949 1943-08-12 -40 SVO
-31 9.1 2431337 1944-09-03 2431375 1944-10-11 -38 SVO
-30 7.5 2431741 1945-10-12 2431802 1945-12-12 -61 SVO
-29 8.5 2432201 1947-01-15 2432228 1947-02-11 -27 SVO
-28 7.3 2432601 1948-02-19 2432654 1948-04-12 -53 SVO
-27 8.1 2433061 1949-05-24 2433081 1949-06-13 -20 SVO
-26 6.9 2433457 1950-06-24 2433507 1950-08-13 -50 SVO
-25 7.7 2433910 1951-09-20 2433934 1951-10-14 -24 SVO
-24 7.8 2434343 1952-11-26 2434360 1952-12-13 -17 SVO
-23 7.3 2434756 1954-01-13 2434787 1954-02-13 -31 SVO
-22 7.7 2435193 1955-03-26 2435213 1955-04-15 -20 SVO
-21 7.2 2435617 1956-05-23 2435640 1956-06-15 -23 SVO
-20 8.3 2436059 1957-08-08 2436066 1957-08-15 -7 SVO
-19 6.7 2436456 1958-09-09 2436492 1958-10-15 -36 SVO
-18 8.0 2436915 1959-12-12 2436919 1959-12-16 -4 SVO
-17 7.1 2437316 1961-01-16 2437345 1961-02-14 -29 SVO
-16 7.9 2437755 1962-03-31 2437772 1962-04-17 -17 SVO
-15 7.5 2438184 1963-06-03 2438198 1963-06-17 -14 SVO
-14 7.2 2438613 1964-08-05 2438625 1964-08-17 -12 SVO
-13 7.8 2439047 1965-10-13 2439051 1965-10-17 -4 SVO
-12 7.2 2439463 1966-12-03 2439478 1966-12-18 -15 SVO
-11 7.6 2439902 1968-02-15 2439904 1968-02-17 -2 SVO
-10 7.6 2440339 1969-04-27 2440331 1969-04-19 8 SVO
-9 7.2 2440747 1970-06-09 2440757 1970-06-19 -10 SVO
-8 7.8 2441181 1971-08-17 2441183 1971-08-19 -2 SVO
-7 7.0 2441588 1972-09-27 2441610 1972-10-19 -22 SVO
-6 7.6 2442035 1973-12-18 2442036 1973-12-19 -1 SVO
-5 7.1 2442441 1975-01-28 2442463 1975-02-19 -22 SVO
-4 8.8 2442898 1976-04-29 2442889 1976-04-20 9 SVO
-3 8.3 2443320 1977-06-25 2443316 1977-06-21 4 SVO
-2 8.2 2443742 1978-08-21 2443742 1978-08-21 0 SVO
-1 7.8 2444166 1979-10-19 2444169 1979-10-22 -3 SVO
0 8.8 2444620 1981-01-15 2444595 1980-12-21 25 SVO
1 7.9 2445019 1982-02-18 2445021 1982-02-20 -2 SVO
2 9.3 2445487 1983-06-01 2445448 1983-04-23 39 SVO
3 7.9 2445891 1984-07-09 2445874 1984-06-22 17 SVO
4 8.2 2446345 1985-10-06 2446301 1985-08-23 44 SVO
5 8.1 2446765 1986-11-30 2446727 1986-10-23 38 SVO
6 7.7 2447177 1988-01-16 2447154 1987-12-24 23 SVO
7 8.5 2447626 1989-04-09 2447580 1989-02-22 46 SVO
8 7.6 2448026 1990-05-14 2448007 1990-04-25 19 SVO
9 8.5 2448468 1991-07-30 2448433 1991-06-25 35 SVO
10 7.7 2448882 1992-09-16 2448860 1992-08-25 22 SVO
11 8.3 2449324 1993-12-02 2449286 1993-10-25 38 SVO
12 7.4 2449719 1995-01-01 2449712 1994-12-25 7 SVO
13 8.2 2450161 1996-03-18 2450139 1996-02-25 22 SVO
14 7.2 2450543 1997-04-04 2450565 1997-04-26 -22 SVO
15 8.4 2450995 1998-06-30 2450992 1998-06-27 3 SVO
16 7.3 2451385 1999-07-25 2451418 1999-08-27 -33 SVO
17 8.5 2451840 2000-10-22 2451845 2000-10-27 -5 SVO
18 7.2 2452242 2001-11-28 2452271 2001-12-27 -29 SVO
19 8.6 2452694 2003-02-23 2452698 2003-02-27 -4 SVO
20 6.9 2453081 2004-03-16 2453124 2004-04-28 -43 SVO
21 8.2 2453548 2005-06-26 2453550 2005-06-28 -2 SVO
22 6.8 2453920 2006-07-03 2453977 2006-08-29 -57 SVO
23 8.5 2454395 2007-10-21 2454403 2007-10-29 -8 SVO
24 7.4 2454807 2008-12-06 2454830 2008-12-29 -23 SVO
25 7.6 2455244 2010-02-16 2455256 2010-02-28 -12 SVO
26 7.6 2455664 2011-04-12 2455683 2011-05-01 -19 SVO
27 7.6 2456093 2012-06-14 2456109 2012-06-30 -16 SVO
28 7.7 2456541 2013-09-05 2456536 2013-08-31 5 SVO
29 8.2 2456981 2014-11-19 2456962 2014-10-31 19 SVO
30 7.2 2457399 2016-01-11 2457389 2016-01-01 10 SVO
31 8.4 2457856 2017-04-12 2457815 2017-03-02 41 SVO
32 7.5 2458247 2018-05-08 2458241 2018-05-02 6 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.