Maxima for DD Cyg
Mean period: 148.02, GCVS period: 147.6

E O (JD) O (dat) Period
-195 2415676 1901-10-18 147.97
-191 2416279 1903-06-13 148.15
-190 2416420 1903-11-01 148.55
-188 2416730 1904-09-06 148.78
-183 2417460 1906-09-06 148.32
-176 2418500 1909-07-12 148.04
-171 2419250 1911-08-01 148.28
-166 2419990 1913-08-10 148.45
-163 2420419 1914-10-13 148.42
-162 2420570 1915-03-13 148.21
-158 2421180 1916-11-12 147.98
-146 2422956 1921-09-23 148.24
-141 2423690 1923-09-27 148.6
-139 2423990 1924-07-23 148.07
-136 2424425 1925-10-01 147.59
-134 2424730 1926-08-02 147.78
-133 2424878 1926-12-28 147.35
-132 2425016 1927-05-15 146.95
-131 2425171 1927-10-17 147.18
-129 2425465 1928-08-06 147.38
-128 2425604 1928-12-23 147.62
-127 2425750 1929-05-18 147.44
-126 2425907 1929-10-22 146.4
-125 2426059 1930-03-23 146.9
-124 2426197 1930-08-08 148.09
-121 2426644 1931-10-29 147.59
-119 2426920 1932-07-31 146.82
-117 2427234 1933-06-10 147.35
-116 2427378 1933-11-01 147.67
-115 2427526 1934-03-29 148.29
-114 2427670 1934-08-20 148.76
-112 2427975 1935-06-21 148.33
-109 2428410 1936-08-29 148.97
-107 2428713 1937-06-28 148.97
-104 2429160 1938-09-18 148.71
-102 2429457 1939-07-12 149.25
-99 2429916 1940-10-13 149.53
-97 2430196 1941-07-20 148.97
-95 2430505 1942-05-25 148.63
-94 2430656 1942-10-23 148.68
-92 2430953 1943-08-16 149.29
-90 2431240 1944-05-29 149.28
-89 2431390 1944-10-26 148.37
-87 2431700 1945-09-01 148.55
-85 2431995 1946-06-23 149.03
-82 2432438 1947-09-09 148.82
-80 2432729 1948-06-26 148.38
-75 2433485 1950-07-22 148.03
-73 2433775 1951-05-08 147.79
-72 2433915 1951-09-25 147.9
-70 2434220 1952-07-26 147.88
-63 2435248 1955-05-20 147.83
-62 2435392 1955-10-11 148.53
-58 2435987 1957-05-28 148.58
-57 2436142 1957-10-30 148.18
-55 2436440 1958-08-24 148.26
-50 2437191 1960-09-13 148.63
-47 2437630 1961-11-26 148.2
-46 2437765 1962-04-10 147.38
-45 2437916 1962-09-08 146.29
-43 2438219 1963-07-08 146.26
-42 2438356 1963-11-22 148.78
-41 2438500 1964-04-14 148.56
-40 2438642 1964-09-03 147.06
-38 2438958 1965-07-16 148
-37 2439115 1965-12-20 148.4
-36 2439240 1966-04-24 148.28
-35 2439395 1966-09-26 147.71
-25 2440880 1970-10-20 146.91
-23 2441170 1971-08-06 147.31
-22 2441310 1971-12-24 147.65
-21 2441460 1972-05-22 147
-20 2441608 1972-10-17 146.8
-18 2441903 1973-08-08 147.29
-16 2442195 1974-05-27 147.5
-15 2442343 1974-10-22 147.7
-13 2442643 1975-08-18 147.46
-11 2442930 1976-05-31 147.7
-10 2443085 1976-11-02 147.91
-8 2443380 1977-08-24 148.08
-6 2443670 1978-06-10 148.78
-5 2443825 1978-11-12 149.09
-3 2444115 1979-08-29 149.05
-1 2444425 1980-07-04 149.25
0 2444570 1980-11-26 149
1 2444725 1981-04-30 148.65
2 2444870 1981-09-22 147.95
4 2445165 1982-07-14 147.55
5 2445310 1982-12-06 147.2
7 2445603 1983-09-25 146.73
9 2445896 1984-07-14 146.8
12 2446345 1985-10-06 147.12
14 2446630 1986-07-18 147.74
15 2446780 1986-12-15 148.1
16 2446925 1987-05-09 147.72
17 2447081 1987-10-12 147.93
18 2447230 1988-03-09 149.36
19 2447379 1988-08-05 150.57
20 2447521 1988-12-25 149.93
21 2447673 1989-05-26 148.5
22 2447828 1989-10-28 149.07
23 2447985 1990-04-03 149.36
24 2448120 1990-08-16 149.36
25 2448270 1991-01-13 148.93
26 2448426 1991-06-18 146.57
27 2448565 1991-11-04 147
28 2448720 1992-04-07 150
29 2448866 1992-08-31 150
30 2448999 1993-01-11 148.86
31 2449164 1993-06-25 148.21
32 2449326 1993-12-04 148.21
33 2449470 1994-04-27 149.21
34 2449605 1994-09-09 149.93
35 2449755 1995-02-06 148
36 2449906 1995-07-07 146.57
37 2450048 1995-11-26 147.21
38 2450214 1996-05-10 148
39 2450348 1996-09-21 147.79
40 2450500 1997-02-20 147
41 2450636 1997-07-06 145.57
42 2450796 1997-12-13 145.14
43 2450934 1998-04-30 145.86
44 2451078 1998-09-21 146.79
45 2451222 1999-02-12 147.57
46 2451372 1999-07-12 147.36
47 2451518 1999-12-05 147.79
48 2451673 2000-05-08 147.64
49 2451825 2000-10-07 147.36
50 2451968 2001-02-27 147.71
51 2452113 2001-07-22 147.29
52 2452254 2001-12-10 146.43
53 2452403 2002-05-08 146.64
54 2452555 2002-10-07 147.21
55 2452698 2003-02-27 147.79
56 2452850 2003-07-29 148.07
57 2452996 2003-12-22 147.71
58 2453146 2004-05-20 148.07
59 2453290 2004-10-11 148.21
60 2453440 2005-03-10 148.21
61 2453586 2005-08-03 148.29
62 2453740 2006-01-04 148.21
63 2453883 2006-05-27 147.93
64 2454038 2006-10-29 147.79
65 2454180 2007-03-20 148.07
66 2454331 2007-08-18 147.86
67 2454470 2008-01-04 147
68 2454625 2008-06-07 147.64
69 2454774 2008-11-03 149.43
70 2454919 2009-03-28 149.71
71 2455060 2009-08-16 148.57
72 2455225 2010-01-28 147.21
73 2455378 2010-06-30 148.86
74 2455519 2010-11-18 150.21
75 2455656 2011-04-04 149
76 2455804 2011-08-30 147.07
77 2455973 2012-02-15 147.36
78 2456109 2012-06-30 149.33
79 2456262 2012-11-30 149.06
80 2456400 2013-04-17 146.5
81 2456560 2013-09-24 145.87
83 2456855 2014-07-16 147.13
84 2456990 2014-11-28 147.56
85 2457131 2015-04-18 146.12
86 2457285 2015-09-19 144.4
87 2457440 2016-02-21 145.36
88 2457583 2016-07-13 147
89 2457715 2016-11-22 147.5
90 2457866 2017-04-22 145.79
91 2458014 2017-09-17 145.14
92 2458165 2018-02-15 147.43
93 2458316 2018-07-16 148.29
94 2458450 2018-11-27 148.43
95 2458605 2019-05-01 148.79
96 2458757 2019-09-30 148.93
97 2458900 2020-02-20 149.57
98 2459058 2020-07-27 149.5
99 2459204 2020-12-20 149.5
100 2459362 2021-05-27 150.24
101 2459498 2021-10-10 149.94
102 2459650 2022-03-11 149.25
103 2459805 2022-08-13 149.9


E Cycle number from the GCVS4 epoch.
O (JD) Julian date at observed time for maximum.
O (Dat) Same as above, expressed as date.
Period Calculated mean period at cycle number E.