Maxima for S Cyg
Period: 322.93, Epoch: 2444097
Back to main page  Mean light curve  Period diagram

E Mag O (JD) O (dat) C (JD) C (Dat) O-C Source
-135   2400475 1860-03-05 2400501 1860-03-31 -26 AnHar, 1937, vol 105, p 459
-134   2400834 1861-02-27 2400824 1861-02-17 10 AnHar, 1909, vol 55, p 95
-133   2401138 1861-12-28 2401147 1862-01-06 -9 AnHar, 1909, vol 55, p 95
-132   2401465 1862-11-20 2401470 1862-11-25 -5 VeBam, 1931, vol 3, p 1
-131   2401777 1863-09-28 2401793 1863-10-14 -16 AnHar, 1909, vol 55, p 95
-130   2402104 1864-08-20 2402116 1864-09-01 -12 AnHar, 1909, vol 55, p 95
-129 9.8 2402436 1865-07-18 2402439 1865-07-21 -3 SVO
-128 9.1 2402746 1866-05-24 2402762 1866-06-09 -16 SVO
-127 9.4 2403079 1867-04-22 2403085 1867-04-28 -6 SVO
-126 9.8 2403399 1868-03-07 2403408 1868-03-16 -9 SVO
-125 9.4 2403721 1869-01-23 2403731 1869-02-02 -10 SVO
-124 10.1 2404045 1869-12-13 2404054 1869-12-22 -9 SVO
-123 9.3 2404364 1870-10-28 2404377 1870-11-10 -13 SVO
-122 10.4 2404686 1871-09-15 2404700 1871-09-29 -14 SVO
-121 9.1 2405012 1872-08-06 2405022 1872-08-16 -10 SVO
-119 9.1 2405648 1874-05-04 2405668 1874-05-24 -20 SVO
-118 11.1 2405979 1875-03-31 2405991 1875-04-12 -12 SVO
-116 10.0 2406630 1877-01-10 2406637 1877-01-17 -7 SVO
-115 9.0 2406932 1877-11-08 2406960 1877-12-06 -28 SVO
-114   2407268 1878-10-10 2407283 1878-10-25 -15 AnHar, 1909, vol 55, p 95
-113   2407581 1879-08-19 2407606 1879-09-13 -25 AnHar, 1909, vol 55, p 95
-112   2407892 1880-06-25 2407929 1880-08-01 -37 AnHar, 1909, vol 55, p 95
-111   2408207 1881-05-06 2408252 1881-06-20 -45 AnHar, 1909, vol 55, p 95
-110   2408533 1882-03-28 2408575 1882-05-09 -42 GuL, 1920, 1.2
-109   2408860 1883-02-18 2408898 1883-03-28 -38 AnHar, 1909, vol 55, p 95
-108   2409187 1884-01-11 2409221 1884-02-14 -34 AnHar, 1909, vol 55, p 95
-107 10.3 2409524 1884-12-13 2409543 1885-01-01 -19 SVO
-106   2409847 1885-11-01 2409866 1885-11-20 -19 AnHar, 1909, vol 55, p 95
-105   2410175 1886-09-25 2410189 1886-10-09 -14 AnHar, 1909, vol 55, p 95
-104   2410495 1887-08-11 2410512 1887-08-28 -17 AnHar, 1909, vol 55, p 95
-103   2410833 1888-07-14 2410835 1888-07-16 -2 GuL, 1920, 1.2
-102   2411168 1889-06-14 2411158 1889-06-04 10 AnHar, 1909, vol 55, p 95
-101 10.4 2411480 1890-04-22 2411481 1890-04-23 -1 SVO
-100 9.3 2411806 1891-03-14 2411804 1891-03-12 2 SVO
-99 9.9 2412134 1892-02-05 2412127 1892-01-29 7 SVO
-98 9.5 2412449 1892-12-16 2412450 1892-12-17 -1 SVO
-97 9.9 2412768 1893-10-31 2412773 1893-11-05 -5 SVO
-96 10.5 2413078 1894-09-06 2413096 1894-09-24 -18 SVO
-95 9.8 2413411 1895-08-05 2413419 1895-08-13 -8 SVO
-94 10.5 2413732 1896-06-21 2413742 1896-07-01 -10 SVO
-93 9.7 2414056 1897-05-11 2414065 1897-05-20 -9 SVO
-92   2414413 1898-05-03 2414387 1898-04-07 26 AnHar, 1909, vol 55, p 95
-91   2414718 1899-03-04 2414710 1899-02-24 8 AnHar, 1909, vol 55, p 95
-90   2415032 1900-01-12 2415033 1900-01-13 -1 AnHar, 1909, vol 55, p 95
-89   2415381 1900-12-27 2415356 1900-12-02 25 AnHar, 1909, vol 55, p 95
-88 10.2 2415706 1901-11-17 2415679 1901-10-21 27 SVO
-87   2416021 1902-09-28 2416002 1902-09-09 19 AnHar, 1909, vol 55, p 95
-86   2416358 1903-08-31 2416325 1903-07-29 33 AnHar, 1909, vol 55, p 95
-85   2416660 1904-06-28 2416648 1904-06-16 12 AnHar, 1909, vol 55, p 95
-84 9.8 2416998 1905-06-01 2416971 1905-05-05 27 SVO
-83   2417316 1906-04-15 2417294 1906-03-24 22 AAVSO
-82 10.2 2417631 1907-02-24 2417617 1907-02-10 14 AAVSO
-81   2417980 1908-02-08 2417940 1907-12-30 40 AAVSO
-80 10.1 2418288 1908-12-12 2418263 1908-11-17 25 AAVSO
-79 9.4 2418606 1909-10-26 2418586 1909-10-06 20 AAVSO
-78   2418920 1910-09-05 2418908 1910-08-24 12 AAVSO
-74   2420212 1914-03-20 2420200 1914-03-08 12 GuL, 1920, 1.2
-73   2420562 1915-03-05 2420523 1915-01-25 39 AAVSO
-72 10.1 2420864 1916-01-01 2420846 1915-12-14 18 AAVSO
-71 9.4 2421200 1916-12-02 2421169 1916-11-01 31 AAVSO
-70 10.5 2421524 1917-10-22 2421492 1917-09-20 32 SVO
-69 10.3 2421840 1918-09-03 2421815 1918-08-09 25 SVO
-68 10.8 2422177 1919-08-06 2422138 1919-06-28 39 AAVSO
-67 9.3 2422484 1920-06-08 2422461 1920-05-16 23 AAVSO
-66 10.5 2422802 1921-04-22 2422784 1921-04-04 18 AAVSO
-65   2423141 1922-03-27 2423107 1922-02-21 34 AAVSO
-64 10.8 2423465 1923-02-14 2423429 1923-01-09 36 SVO
-63 10.1 2423790 1924-01-05 2423752 1923-11-28 38 SVO
-62 10.4 2424101 1924-11-11 2424075 1924-10-16 26 SVO
-61 10.2 2424423 1925-09-29 2424398 1925-09-04 25 SVO
-60 10.3 2424736 1926-08-08 2424721 1926-07-24 15 SVO
-59 9.8 2425051 1927-06-19 2425044 1927-06-12 7 SVO
-58 10.7 2425383 1928-05-16 2425367 1928-04-30 16 SVO
-57 10.3 2425709 1929-04-07 2425690 1929-03-19 19 SVO
-56 10.3 2426028 1930-02-20 2426013 1930-02-05 15 SVO
-55 10.1 2426355 1931-01-13 2426336 1930-12-25 19 SVO
-54 10.1 2426675 1931-11-29 2426659 1931-11-13 16 SVO
-53 9.9 2426994 1932-10-13 2426982 1932-10-01 12 SVO
-52 10.2 2427327 1933-09-11 2427305 1933-08-20 22 SVO
-51 10.5 2427665 1934-08-15 2427628 1934-07-09 37 SVO
-50 10.7 2427976 1935-06-22 2427951 1935-05-28 25 SVO
-49 10.6 2428290 1936-05-01 2428273 1936-04-14 17 AAVSO
-48 10.3 2428602 1937-03-09 2428596 1937-03-03 6 SVO
-47 10.0 2428938 1938-02-08 2428919 1938-01-20 19 SVO
-46 10.4 2429255 1938-12-22 2429242 1938-12-09 13 SVO
-45 10.7 2429580 1939-11-12 2429565 1939-10-28 15 SVO
-44 10.1 2429892 1940-09-19 2429888 1940-09-15 4 SVO
-43 11.0 2430212 1941-08-05 2430211 1941-08-04 1 SVO
-42 10.0 2430515 1942-06-04 2430534 1942-06-23 -19 SVO
-41 11.0 2430840 1943-04-25 2430857 1943-05-12 -17 SVO
-40 9.9 2431158 1944-03-08 2431180 1944-03-30 -22 SVO
-39 10.4 2431479 1945-01-23 2431503 1945-02-16 -24 SVO
-38 10.1 2431800 1945-12-10 2431826 1946-01-05 -26 SVO
-37 10.3 2432125 1946-10-31 2432149 1946-11-24 -24 SVO
-36 10.5 2432452 1947-09-23 2432472 1947-10-13 -20 SVO
-35 9.9 2432763 1948-07-30 2432794 1948-08-30 -31 SVO
-34 10.7 2433089 1949-06-21 2433117 1949-07-19 -28 SVO
-33 9.9 2433407 1950-05-05 2433440 1950-06-07 -33 SVO
-32 10.4 2433745 1951-04-08 2433763 1951-04-26 -18 SVO
-31 10.7 2434064 1952-02-21 2434086 1952-03-14 -22 SVO
-30 10.4 2434381 1953-01-03 2434409 1953-01-31 -28 AAVSO
-29 10.7 2434721 1953-12-09 2434732 1953-12-20 -11 SVO
-28 10.1 2435043 1954-10-27 2435055 1954-11-08 -12 SVO
-27 11.0 2435392 1955-10-11 2435378 1955-09-27 14 SVO
-26 10.6 2435715 1956-08-29 2435701 1956-08-15 14 SVO
-25 10.5 2436035 1957-07-15 2436024 1957-07-04 11 SVO
-24 10.1 2436356 1958-06-01 2436347 1958-05-23 9 SVO
-23 10.0 2436682 1959-04-23 2436670 1959-04-11 12 AAVSO
-22   2437003 1960-03-09 2436993 1960-02-28 10 AAVSO
-21 10.5 2437352 1961-02-21 2437315 1961-01-15 37 SVO
-20 10.3 2437684 1962-01-19 2437638 1961-12-04 46 SVO
-19 10.1 2437995 1962-11-26 2437961 1962-10-23 34 SVO
-18 10.5 2438324 1963-10-21 2438284 1963-09-11 40 SVO
-17 10.8 2438651 1964-09-12 2438607 1964-07-30 44 SVO
-16 10.3 2438965 1965-07-23 2438930 1965-06-18 35 SVO
-15 10.2 2439291 1966-06-14 2439253 1966-05-07 38 SVO
-14 10.0 2439618 1967-05-07 2439576 1967-03-26 42 SVO
-13 10.6 2439941 1968-03-25 2439899 1968-02-12 42 SVO
-12 9.9 2440262 1969-02-09 2440222 1968-12-31 40 SVO
-11 10.4 2440588 1970-01-01 2440545 1969-11-19 43 SVO
-10 10.6 2440909 1970-11-18 2440868 1970-10-08 41 SVO
-9 10.3 2441219 1971-09-24 2441191 1971-08-27 28 SVO
-8 10.1 2441529 1972-07-30 2441514 1972-07-15 15 SVO
-7 10.4 2441846 1973-06-12 2441836 1973-06-02 10 SVO
-6 10.0 2442176 1974-05-08 2442159 1974-04-21 17 SVO
-5 10.7 2442505 1975-04-02 2442482 1975-03-10 23 SVO
-4 10.3 2442819 1976-02-10 2442805 1976-01-27 14 SVO
-3 10.5 2443127 1976-12-14 2443128 1976-12-15 -1 SVO
-2 10.4 2443455 1977-11-07 2443451 1977-11-03 4 SVO
-1 10.1 2443769 1978-09-17 2443774 1978-09-22 -5 SVO
0 10.4 2444093 1979-08-07 2444097 1979-08-11 -4 SVO
1 10.9 2444422 1980-07-01 2444420 1980-06-29 2 SVO
2 9.9 2444734 1981-05-09 2444743 1981-05-18 -9 SVO
3 10.7 2445066 1982-04-06 2445066 1982-04-06 0 SVO
4 9.9 2445377 1983-02-11 2445389 1983-02-23 -12 SVO
5 10.4 2445713 1984-01-13 2445712 1984-01-12 1 SVO
6 10.1 2446033 1984-11-28 2446035 1984-11-30 -2 SVO
7 10.7 2446362 1985-10-23 2446358 1985-10-19 4 SVO
8 9.8 2446683 1986-09-09 2446680 1986-09-06 3 SVO
9 10.8 2447033 1987-08-25 2447003 1987-07-26 30 SVO
10 10.5 2447353 1988-07-10 2447326 1988-06-13 27 SVO
11 10.0 2447674 1989-05-27 2447649 1989-05-02 25 SVO
12 10.4 2448010 1990-04-28 2447972 1990-03-21 38 SVO
13 10.2 2448329 1991-03-13 2448295 1991-02-07 34 SVO
14 10.0 2448654 1992-02-01 2448618 1991-12-27 36 SVO
15 10.4 2448988 1992-12-31 2448941 1992-11-14 47 SVO
16 10.7 2449316 1993-11-24 2449264 1993-10-03 52 SVO
17 10.2 2449641 1994-10-15 2449587 1994-08-22 54 SVO
18 10.7 2449966 1995-09-05 2449910 1995-07-11 56 SVO
19 10.5 2450293 1996-07-28 2450233 1996-05-29 60 SVO
20 10.0 2450606 1997-06-06 2450556 1997-04-17 50 SVO
21 10.7 2450936 1998-05-02 2450879 1998-03-06 57 SVO
22 10.4 2451261 1999-03-23 2451201 1999-01-22 60 SVO
23 10.8 2451578 2000-02-03 2451524 1999-12-11 54 SVO
24 9.9 2451892 2000-12-13 2451847 2000-10-29 45 SVO
25 11.2 2452218 2001-11-04 2452170 2001-09-17 48 SVO
26 10.1 2452541 2002-09-23 2452493 2002-08-06 48 SVO
27 10.8 2452868 2003-08-16 2452816 2003-06-25 52 SVO
28 10.0 2453187 2004-06-30 2453139 2004-05-13 48 SVO
29 10.4 2453504 2005-05-13 2453462 2005-04-01 42 SVO
30 9.8 2453826 2006-03-31 2453785 2006-02-18 41 SVO
31 10.3 2454145 2007-02-13 2454108 2007-01-07 37 SVO
32 10.2 2454476 2008-01-10 2454431 2007-11-26 45 SVO
33 10.3 2454801 2008-11-30 2454754 2008-10-14 47 SVO
34 9.9 2455123 2009-10-18 2455077 2009-09-02 46 SVO
35 10.2 2455442 2010-09-02 2455400 2010-07-22 42 SVO
36 10.0 2455770 2011-07-27 2455722 2011-06-09 48 SVO
37 11.1 2456105 2012-06-26 2456045 2012-04-27 60 SVO
38 9.9 2456422 2013-05-09 2456368 2013-03-16 54 SVO
39 10.8 2456745 2014-03-28 2456691 2014-02-02 54 SVO
40 10.7 2457084 2015-03-02 2457014 2014-12-22 70 SVO
41 9.9 2457394 2016-01-06 2457337 2015-11-10 57 SVO
42 10.5 2457706 2016-11-13 2457660 2016-09-28 46 SVO
43 10.0 2458028 2017-10-01 2457983 2017-08-17 45 SVO
44 10.0 2458347 2018-08-16 2458306 2018-07-06 41 SVO
45 10.8 2458680 2019-07-15 2458629 2019-05-25 51 SVO
46 10.2 2458999 2020-05-29 2458952 2020-04-12 47 SVO
47 10.5 2459318 2021-04-13 2459275 2021-03-01 43 SVO
48 10.0 2459639 2022-02-28 2459598 2022-01-18 41 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.