Maxima for DR Cyg
Period: 313.35, Epoch: 2439413.3

E Mag O (JD) O (dat) C (JD) C (Dat) O-C Source
-85   2412735 1893-09-28 2412778 1893-11-10 -43 SVO
-78   2414934 1899-10-06 2414972 1899-11-13 -38 PZ, 1949, vol 7, p 151, AnHar, 1952, vol 118
-76   2415580 1901-07-14 2415599 1901-08-02 -19 SVO
-75   2415892 1902-05-22 2415912 1902-06-11 -20 AnHar, 1952, vol 118
-74   2416180 1903-03-06 2416225 1903-04-20 -45 AnHar, 1952, vol 118
-73   2416515 1904-02-04 2416539 1904-02-28 -24 AnHar, 1952, vol 118
-72   2416835 1904-12-20 2416852 1905-01-06 -17 SVO
-71   2417145 1905-10-26 2417165 1905-11-15 -20 SVO
-70   2417465 1906-09-11 2417479 1906-09-25 -14 PZ, 1949, vol 7, p 151
-68   2418104 1908-06-11 2418105 1908-06-12 -1 AnHar, 1952, vol 118
-64   2419364 1911-11-23 2419359 1911-11-18 5 AnHar, 1952, vol 118
-63   2419673 1912-09-27 2419672 1912-09-26 1 AnHar, 1952, vol 118
-62   2419990 1913-08-10 2419985 1913-08-05 5 SVO
-60   2420602 1915-04-14 2420612 1915-04-24 -10 AnHar, 1952, vol 118
-58   2421228 1916-12-30 2421239 1917-01-10 -11 AnHar, 1952, vol 118
-57   2421550 1917-11-17 2421552 1917-11-19 -2 SVO
-56   2421860 1918-09-23 2421866 1918-09-29 -6 SVO
-55   2422170 1919-07-30 2422179 1919-08-08 -9 SVO
-53   2422810 1921-04-30 2422806 1921-04-26 4 SVO
-50   2423745 1923-11-21 2423746 1923-11-22 -1 SVO
-49   2424060 1924-10-01 2424059 1924-09-30 1 SVO
-48   2424362 1925-07-30 2424372 1925-08-09 -10 AnHar, 1952, vol 118
-47   2424680 1926-06-13 2424686 1926-06-19 -6 SVO
-46   2424995 1927-04-24 2424999 1927-04-28 -4 AnHar, 1952, vol 118
-44   2425648 1929-02-05 2425626 1929-01-14 22 PZ, 1949, vol 7, p 151
-43   2425972 1929-12-26 2425939 1929-11-23 33 PZ, 1949, vol 7, p 151
-42   2426300 1930-11-19 2426253 1930-10-03 47 SVO
-41   2426616 1931-10-01 2426566 1931-08-12 50 PZ, 1949, vol 7, p 151
-40   2426925 1932-08-05 2426879 1932-06-20 46 AnHar, 1952, vol 118, PZ, 1949, vol 7, p 151
-39   2427250 1933-06-26 2427193 1933-04-30 57 SVO
-38   2427570 1934-05-12 2427506 1934-03-09 64 SVO
-35   2428508 1936-12-05 2428446 1936-10-04 62 AnHar, 1952, vol 118, PZ, 1949, vol 7, p 151
-34   2428796 1937-09-19 2428759 1937-08-13 37 PZ, 1949, vol 7, p 151
-33   2429110 1938-07-30 2429073 1938-06-23 37 SVO
-32   2429415 1939-05-31 2429386 1939-05-02 29 PZ, 1949, vol 7, p 151
-29   2430350 1941-12-21 2430326 1941-11-27 24 SVO
-28   2430670 1942-11-06 2430639 1942-10-06 31 SVO
-27   2430965 1943-08-28 2430953 1943-08-16 12 SVO
-26   2431277 1944-07-05 2431266 1944-06-24 11 SVO
-25   2431610 1945-06-03 2431580 1945-05-04 30 SVO
-19   2433460 1950-06-27 2433460 1950-06-27 0 SVO
-15   2434708 1953-11-26 2434713 1953-12-01 -5 MitVS, 1984, vol 10, p 116
-14   2435019 1954-10-03 2435026 1954-10-10 -7 MitVS, 1984, vol 10, p 116
-13   2435331 1955-08-11 2435340 1955-08-20 -9 MitVS, 1984, vol 10, p 116
-12   2435700 1956-08-14 2435653 1956-06-28 47 MitVS, 1984, vol 10, p 116
-11   2435972 1957-05-13 2435966 1957-05-07 6 MitVS, 1984, vol 10, p 116
-8   2436900 1959-11-27 2436907 1959-12-04 -7 MitVS, 1984, vol 10, p 116
-7   2437194 1960-09-16 2437220 1960-10-12 -26 MitVS, 1984, vol 10, p 116, MitVS, 1967, vol 4, p 150
-6   2437516 1961-08-04 2437533 1961-08-21 -17 MitVS, 1984, vol 10, p 116, MitVS, 1967, vol 4, p 150
-5   2437841 1962-06-25 2437847 1962-07-01 -6 MitVS, 1967, vol 4, p 150, MitVS, 1984, vol 10, p 116
-4   2438166 1963-05-16 2438160 1963-05-10 6 MitVS, 1967, vol 4, p 150, MitVS, 1984, vol 10, p 116
-3   2438466 1964-03-11 2438473 1964-03-18 -7 MitVS, 1984, vol 10, p 116
-2   2438760 1964-12-30 2438787 1965-01-26 -27 MitVS, 1984, vol 10, p 116
-1   2439107 1965-12-12 2439100 1965-12-05 7 MitVS, 1984, vol 10, p 116, MitVS, 1967, vol 4, p 150
0   2439418 1966-10-19 2439413 1966-10-14 5 MitVS, 1984, vol 10, p 116, MitVS, 1967, vol 4, p 150
1   2439730 1967-08-27 2439727 1967-08-24 3 MitVS, 1984, vol 10, p 116
2   2440048 1968-07-10 2440040 1968-07-02 8 MitVS, 1984, vol 10, p 116
3   2440355 1969-05-13 2440353 1969-05-11 2 MitVS, 1984, vol 10, p 116
6   2441300 1971-12-14 2441293 1971-12-07 7 MitVS, 1984, vol 10, p 116
7   2441620 1972-10-29 2441607 1972-10-16 13 MitVS, 1984, vol 10, p 116
8   2441922 1973-08-27 2441920 1973-08-25 2 MitVS, 1984, vol 10, p 116
9   2442228 1974-06-29 2442234 1974-07-05 -6 MitVS, 1984, vol 10, p 116
10   2442550 1975-05-17 2442547 1975-05-14 3 SVO
11   2442870 1976-04-01 2442860 1976-03-22 10 MitVS, 1984, vol 10, p 116
13   2443477 1977-11-29 2443487 1977-12-09 -10 MitVS, 1984, vol 10, p 116
14   2443790 1978-10-08 2443800 1978-10-18 -10 MitVS, 1984, vol 10, p 116
15   2444108 1979-08-22 2444114 1979-08-28 -6 MitVS, 1984, vol 10, p 116
16   2444410 1980-06-19 2444427 1980-07-06 -17 MitVS, 1984, vol 10, p 116
17   2444732 1981-05-07 2444740 1981-05-15 -8 MitVS, 1984, vol 10, p 116
19   2445360 1983-01-25 2445367 1983-02-01 -7 SVO
20   2445665 1983-11-26 2445680 1983-12-11 -15 SVO
21 8.9 2445985 1984-10-11 2445994 1984-10-20 -9 SVO
22 10.1 2446296 1985-08-18 2446307 1985-08-29 -11 SVO
23   2446612 1986-06-30 2446620 1986-07-08 -8 AFOEV
24   2446910 1987-04-24 2446934 1987-05-18 -24 SVO
26 9.0 2447536 1989-01-09 2447561 1989-02-03 -25 SVO
27 8.7 2447845 1989-11-14 2447874 1989-12-13 -29 SVO
28 9.2 2448155 1990-09-20 2448187 1990-10-22 -32 SVO
29 9.0 2448475 1991-08-06 2448501 1991-09-01 -26 SVO
30   2448790 1992-06-16 2448814 1992-07-10 -24 SVO
31   2449110 1993-05-02 2449127 1993-05-19 -17 AFOEV
32 8.9 2449409 1994-02-25 2449441 1994-03-29 -32 SVO
33 10.0 2449727 1995-01-09 2449754 1995-02-05 -27 SVO
34 9.4 2450044 1995-11-22 2450067 1995-12-15 -23 SVO
35 8.9 2450350 1996-09-23 2450381 1996-10-24 -31 SVO
36 9.3 2450658 1997-07-28 2450694 1997-09-02 -36 SVO
37 9.0 2450970 1998-06-05 2451007 1998-07-12 -37 SVO
38 9.1 2451284 1999-04-15 2451321 1999-05-22 -37 SVO
39 8.8 2451601 2000-02-26 2451634 2000-03-30 -33 SVO
40 9.4 2451917 2001-01-07 2451947 2001-02-06 -30 SVO
41 9.4 2452235 2001-11-21 2452261 2001-12-17 -26 SVO
42 8.8 2452550 2002-10-02 2452574 2002-10-26 -24 SVO
43 9.1 2452873 2003-08-21 2452887 2003-09-04 -14 SVO
44 9.3 2453188 2004-07-01 2453201 2004-07-14 -13 SVO
45   2453500 2005-05-09 2453514 2005-05-23 -14 SVO
46   2453820 2006-03-25 2453828 2006-04-02 -8 SVO
47 9.1 2454136 2007-02-04 2454141 2007-02-09 -5 SVO
48 9.1 2454449 2007-12-14 2454454 2007-12-19 -5 SVO
49 9.6 2454765 2008-10-25 2454768 2008-10-28 -3 SVO
50 8.8 2455075 2009-08-31 2455081 2009-09-06 -6 SVO
51 9.3 2455389 2010-07-11 2455394 2010-07-16 -5 SVO
52 9.6 2455711 2011-05-29 2455708 2011-05-26 3 SVO
53 8.8 2456024 2012-04-06 2456021 2012-04-03 3 SVO
54 9.1 2456343 2013-02-19 2456334 2013-02-10 9 SVO
56 9.5 2456979 2014-11-17 2456961 2014-10-30 18 SVO
57 9.6 2457297 2015-10-01 2457274 2015-09-08 23 SVO
58 9.2 2457627 2016-08-26 2457588 2016-07-18 39 SVO
59 9.4 2457934 2017-06-29 2457901 2017-05-27 33 SVO
60 8.3 2458239 2018-04-30 2458214 2018-04-05 25 SVO
61 9.0 2458560 2019-03-17 2458528 2019-02-13 32 SVO
62 9.0 2458880 2020-01-31 2458841 2019-12-23 39 SVO
63 9.6 2459202 2020-12-18 2459155 2020-11-01 47 SVO
64 8.8 2459520 2021-11-01 2459468 2021-09-10 52 SVO
65 9.4 2459836 2022-09-13 2459781 2022-07-20 55 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.