Maxima for DR Cyg
Period: 313.39, Epoch: 2439414.5

E Mag O (JD) O (dat) C (JD) C (Dat) O-C Source
-85   2412735 1893-09-28 2412776 1893-11-08 -41 SVO
-78   2414934 1899-10-06 2414970 1899-11-11 -36 PZ, 1949, vol 7, p 151, AnHar, 1952, vol 118
-76   2415580 1901-07-14 2415597 1901-07-31 -17 SVO
-75   2415892 1902-05-22 2415910 1902-06-09 -18 AnHar, 1952, vol 118
-74   2416180 1903-03-06 2416223 1903-04-18 -43 AnHar, 1952, vol 118
-73   2416515 1904-02-04 2416537 1904-02-26 -22 AnHar, 1952, vol 118
-72   2416835 1904-12-20 2416850 1905-01-04 -15 SVO
-71   2417145 1905-10-26 2417164 1905-11-14 -19 SVO
-70   2417465 1906-09-11 2417477 1906-09-23 -12 PZ, 1949, vol 7, p 151
-68   2418104 1908-06-11 2418104 1908-06-11 0 AnHar, 1952, vol 118
-64   2419364 1911-11-23 2419357 1911-11-16 7 AnHar, 1952, vol 118
-63   2419673 1912-09-27 2419671 1912-09-25 2 AnHar, 1952, vol 118
-62   2419990 1913-08-10 2419984 1913-08-04 6 SVO
-60   2420602 1915-04-14 2420611 1915-04-23 -9 AnHar, 1952, vol 118
-58   2421228 1916-12-30 2421238 1917-01-09 -10 AnHar, 1952, vol 118
-57   2421550 1917-11-17 2421551 1917-11-18 -1 SVO
-56   2421860 1918-09-23 2421865 1918-09-28 -5 SVO
-55   2422170 1919-07-30 2422178 1919-08-07 -8 SVO
-53   2422810 1921-04-30 2422805 1921-04-25 5 SVO
-50   2423745 1923-11-21 2423745 1923-11-21 0 SVO
-49   2424060 1924-10-01 2424058 1924-09-29 2 SVO
-48   2424362 1925-07-30 2424372 1925-08-09 -10 AnHar, 1952, vol 118
-47   2424680 1926-06-13 2424685 1926-06-18 -5 SVO
-46   2424995 1927-04-24 2424998 1927-04-27 -3 AnHar, 1952, vol 118
-44   2425648 1929-02-05 2425625 1929-01-13 23 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 2426252 1930-10-02 48 SVO
-41   2426616 1931-10-01 2426565 1931-08-11 51 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 2427192 1933-04-29 58 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 2434714 1953-12-02 -6 MitVS, 1984, vol 10, p 116
-14   2435019 1954-10-03 2435027 1954-10-11 -8 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 2435654 1956-06-29 46 MitVS, 1984, vol 10, p 116
-11   2435972 1957-05-13 2435967 1957-05-08 5 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 2437221 1960-10-13 -27 MitVS, 1984, vol 10, p 116, MitVS, 1967, vol 4, p 150
-6   2437516 1961-08-04 2437534 1961-08-22 -18 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 2438161 1963-05-11 5 MitVS, 1967, vol 4, p 150, MitVS, 1984, vol 10, p 116
-3   2438466 1964-03-11 2438474 1964-03-19 -8 MitVS, 1984, vol 10, p 116
-2   2438760 1964-12-30 2438788 1965-01-27 -28 MitVS, 1984, vol 10, p 116
-1   2439107 1965-12-12 2439101 1965-12-06 6 MitVS, 1984, vol 10, p 116, MitVS, 1967, vol 4, p 150
0   2439418 1966-10-19 2439414 1966-10-15 4 MitVS, 1984, vol 10, p 116, MitVS, 1967, vol 4, p 150
1   2439730 1967-08-27 2439728 1967-08-25 2 MitVS, 1984, vol 10, p 116
2   2440048 1968-07-10 2440041 1968-07-03 7 MitVS, 1984, vol 10, p 116
3   2440355 1969-05-13 2440355 1969-05-13 0 MitVS, 1984, vol 10, p 116
6   2441300 1971-12-14 2441295 1971-12-09 5 MitVS, 1984, vol 10, p 116
7   2441620 1972-10-29 2441608 1972-10-17 12 MitVS, 1984, vol 10, p 116
8   2441922 1973-08-27 2441922 1973-08-27 0 MitVS, 1984, vol 10, p 116
9   2442228 1974-06-29 2442235 1974-07-06 -7 MitVS, 1984, vol 10, p 116
10   2442550 1975-05-17 2442548 1975-05-15 2 SVO
11   2442870 1976-04-01 2442862 1976-03-24 8 MitVS, 1984, vol 10, p 116
13   2443477 1977-11-29 2443489 1977-12-11 -12 MitVS, 1984, vol 10, p 116
14   2443790 1978-10-08 2443802 1978-10-20 -12 MitVS, 1984, vol 10, p 116
15   2444108 1979-08-22 2444115 1979-08-29 -7 MitVS, 1984, vol 10, p 116
16   2444410 1980-06-19 2444429 1980-07-08 -19 MitVS, 1984, vol 10, p 116
17   2444732 1981-05-07 2444742 1981-05-17 -10 MitVS, 1984, vol 10, p 116
19   2445360 1983-01-25 2445369 1983-02-03 -9 SVO
20   2445665 1983-11-26 2445682 1983-12-13 -17 SVO
21 8.9 2445985 1984-10-11 2445996 1984-10-22 -11 SVO
22 10.1 2446296 1985-08-18 2446309 1985-08-31 -13 SVO
23   2446612 1986-06-30 2446622 1986-07-10 -10 AFOEV
24   2446910 1987-04-24 2446936 1987-05-20 -26 SVO
26 9.0 2447536 1989-01-09 2447563 1989-02-05 -27 SVO
27 8.7 2447845 1989-11-14 2447876 1989-12-15 -31 SVO
28 9.2 2448155 1990-09-20 2448189 1990-10-24 -34 SVO
29 9.0 2448475 1991-08-06 2448503 1991-09-03 -28 SVO
30   2448790 1992-06-16 2448816 1992-07-12 -26 SVO
31   2449110 1993-05-02 2449130 1993-05-22 -20 AFOEV
32 8.9 2449409 1994-02-25 2449443 1994-03-31 -34 SVO
33 10.0 2449727 1995-01-09 2449756 1995-02-07 -29 SVO
34 9.4 2450044 1995-11-22 2450070 1995-12-18 -26 SVO
35 8.9 2450350 1996-09-23 2450383 1996-10-26 -33 SVO
36 9.3 2450658 1997-07-28 2450697 1997-09-05 -39 SVO
37 9.0 2450970 1998-06-05 2451010 1998-07-15 -40 SVO
38 9.1 2451284 1999-04-15 2451323 1999-05-24 -39 SVO
39 8.8 2451601 2000-02-26 2451637 2000-04-02 -36 SVO
40 9.4 2451917 2001-01-07 2451950 2001-02-09 -33 SVO
41 9.4 2452235 2001-11-21 2452263 2001-12-19 -28 SVO
42 8.8 2452550 2002-10-02 2452577 2002-10-29 -27 SVO
43 9.1 2452873 2003-08-21 2452890 2003-09-07 -17 SVO
44 9.3 2453188 2004-07-01 2453204 2004-07-17 -16 SVO
45   2453500 2005-05-09 2453517 2005-05-26 -17 SVO
46   2453820 2006-03-25 2453830 2006-04-04 -10 SVO
47 9.1 2454136 2007-02-04 2454144 2007-02-12 -8 SVO
48 9.1 2454449 2007-12-14 2454457 2007-12-22 -8 SVO
49 9.6 2454765 2008-10-25 2454771 2008-10-31 -6 SVO
50 8.8 2455075 2009-08-31 2455084 2009-09-09 -9 SVO
51 9.3 2455389 2010-07-11 2455397 2010-07-19 -8 SVO
52 9.6 2455711 2011-05-29 2455711 2011-05-29 0 SVO
53 8.8 2456024 2012-04-06 2456024 2012-04-06 0 SVO
54 9.1 2456343 2013-02-19 2456338 2013-02-14 5 SVO
55 8.5 2456653 2013-12-26 2456651 2013-12-24 2 SVO
56 9.5 2456979 2014-11-17 2456964 2014-11-02 15 SVO
57 9.6 2457297 2015-10-01 2457278 2015-09-12 19 SVO
58 9.2 2457627 2016-08-26 2457591 2016-07-21 36 SVO
59 9.4 2457934 2017-06-29 2457905 2017-05-31 29 SVO
60 8.3 2458239 2018-04-30 2458218 2018-04-09 21 SVO
61 9.0 2458560 2019-03-17 2458531 2019-02-16 29 SVO
62 9.0 2458880 2020-01-31 2458845 2019-12-27 35 SVO
63 9.6 2459202 2020-12-18 2459158 2020-11-04 44 SVO
64 8.8 2459520 2021-11-01 2459472 2021-09-14 48 SVO
65 9.4 2459836 2022-09-13 2459785 2022-07-24 51 SVO
66 8.9 2460157 2023-07-31 2460098 2023-06-02 59 SVO
67 9.2 2460471 2024-06-09 2460412 2024-04-11 59 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.