Maxima for ZZ Dra
Period: 269.64, Epoch: 2441187.0

E Mag O (JD) O (dat) C (JD) C (Dat) O-C Source
-93   2416082 1902-11-28 2416110 1902-12-26 -28 SVO
-92   2416349 1903-08-22 2416380 1903-09-22 -31 PZ, 1951, vol 8, p 21
-91   2416610 1904-05-09 2416650 1904-06-18 -40 SVO
-90   2416910 1905-03-05 2416919 1905-03-14 -9 SVO
-85   2418270 1908-11-24 2418267 1908-11-21 3 SVO
-81   2419370 1911-11-29 2419346 1911-11-05 24 SVO
-75   2420990 1916-05-06 2420964 1916-04-10 26 SVO
-74   2421235 1917-01-06 2421234 1917-01-05 1 SVO
-73   2421520 1917-10-18 2421503 1917-10-01 17 SVO
-71   2422080 1919-05-01 2422042 1919-03-24 38 SVO
-70   2422310 1919-12-17 2422312 1919-12-19 -2 SVO
-69   2422620 1920-10-22 2422582 1920-09-14 38 SVO
-68   2422850 1921-06-09 2422851 1921-06-10 -1 SVO
-57   2425765 1929-06-02 2425817 1929-07-24 -52 SVO
-55   2426285 1930-11-04 2426357 1931-01-15 -72 SVO
-54   2426547 1931-07-24 2426626 1931-10-11 -79 SVO
-53   2426830 1932-05-02 2426896 1932-07-07 -66 SVO
-51   2427380 1933-11-03 2427435 1933-12-28 -55 PZ, 1951, vol 8, p 21
-50   2427678 1934-08-28 2427705 1934-09-24 -27 PZ, 1951, vol 8, p 21
-49   2427929 1935-05-06 2427975 1935-06-21 -46 PZ, 1951, vol 8, p 21
-48   2428196 1936-01-28 2428244 1936-03-16 -48 PZ, 1951, vol 8, p 21
-47   2428465 1936-10-23 2428514 1936-12-11 -49 PZ, 1951, vol 8, p 21
-46   2428743 1937-07-28 2428783 1937-09-06 -40 SVO
-45   2429013 1938-04-24 2429053 1938-06-03 -40 SVO
-44   2429290 1939-01-26 2429323 1939-02-28 -33 SVO
-43   2429557 1939-10-20 2429592 1939-11-24 -35 SVO
-42   2429847 1940-08-05 2429862 1940-08-20 -15 SVO
-41   2430120 1941-05-05 2430132 1941-05-17 -12 SVO
-40   2430380 1942-01-20 2430401 1942-02-10 -21 SVO
-39   2430675 1942-11-11 2430671 1942-11-07 4 PZ, 1951, vol 8, p 21
-38   2430929 1943-07-23 2430941 1943-08-04 -12 SVO
-37   2431200 1944-04-19 2431210 1944-04-29 -10 SVO
-35   2431747 1945-10-18 2431750 1945-10-21 -3 SVO
-34   2432025 1946-07-23 2432019 1946-07-17 6 SVO
-33   2432312 1947-05-06 2432289 1947-04-13 23 PZ, 1951, vol 8, p 21
-32   2432587 1948-02-05 2432558 1948-01-07 29 PZ, 1951, vol 8, p 21
-31   2432861 1948-11-05 2432828 1948-10-03 33 PCopO, 1955, vol 167, p 1
-30   2433143 1949-08-14 2433098 1949-06-30 45 SVO
-29   2433418 1950-05-16 2433367 1950-03-26 51 PCopO, 1955, vol 167, p 1
-28   2433687 1951-02-09 2433637 1950-12-21 50 PCopO, 1955, vol 167, p 1
-27   2433965 1951-11-14 2433907 1951-09-17 58 PCopO, 1955, vol 167, p 1
-26   2434227 1952-08-02 2434176 1952-06-12 51 PCopO, 1955, vol 167, p 1
-25   2434509 1953-05-11 2434446 1953-03-09 63 PCopO, 1955, vol 167, p 1
4   2442300 1974-09-09 2442266 1974-08-06 34 SVO
5   2442574 1975-06-10 2442535 1975-05-02 39 SVO
7   2443080 1976-10-28 2443074 1976-10-22 6 SVO
8   2443350 1977-07-25 2443344 1977-07-19 6 SVO
9   2443640 1978-05-11 2443614 1978-04-15 26 SVO
10 9.5 2443907 1979-02-02 2443883 1979-01-09 24 SVO
11 9.8 2444172 1979-10-25 2444153 1979-10-06 19 SVO
12   2444450 1980-07-29 2444423 1980-07-02 27 SVO
13   2444710 1981-04-15 2444692 1981-03-28 18 SVO
14 10.0 2444987 1982-01-17 2444962 1981-12-23 25 SVO
15 9.4 2445267 1982-10-24 2445232 1982-09-19 35 SVO
16   2445529 1983-07-13 2445501 1983-06-15 28 SVO
17 9.7 2445800 1984-04-09 2445771 1984-03-11 29 SVO
18 9.8 2446075 1985-01-09 2446041 1984-12-06 34 SVO
19 9.3 2446336 1985-09-27 2446310 1985-09-01 26 SVO
20 9.4 2446610 1986-06-28 2446580 1986-05-29 30 SVO
21 10.0 2446885 1987-03-30 2446849 1987-02-22 36 SVO
22   2447150 1987-12-20 2447119 1987-11-19 31 SVO
23 9.7 2447430 1988-09-25 2447389 1988-08-15 41 SVO
24 9.6 2447702 1989-06-24 2447658 1989-05-11 44 SVO
25 9.0 2447961 1990-03-10 2447928 1990-02-05 33 SVO
26 9.5 2448234 1990-12-08 2448198 1990-11-02 36 SVO
27 10.0 2448503 1991-09-03 2448467 1991-07-29 36 SVO
28 8.9 2448766 1992-05-23 2448737 1992-04-24 29 SVO
29 9.7 2449042 1993-02-23 2449007 1993-01-19 35 SVO
30 9.3 2449310 1993-11-18 2449276 1993-10-15 34 SVO
31 9.5 2449576 1994-08-11 2449546 1994-07-12 30 SVO
32 9.4 2449845 1995-05-07 2449815 1995-04-07 30 SVO
33 10.0 2450124 1996-02-10 2450085 1996-01-02 39 SVO
34 9.5 2450386 1996-10-29 2450355 1996-09-28 31 SVO
35 9.6 2450650 1997-07-20 2450624 1997-06-24 26 SVO
36 9.7 2450920 1998-04-16 2450894 1998-03-21 26 SVO
37 9.5 2451192 1999-01-13 2451164 1998-12-16 28 SVO
38 9.1 2451452 1999-09-30 2451433 1999-09-11 19 SVO
39 9.7 2451726 2000-06-30 2451703 2000-06-07 23 SVO
40 9.7 2451997 2001-03-28 2451973 2001-03-04 24 SVO
41 9.3 2452257 2001-12-13 2452242 2001-11-28 15 SVO
42 9.9 2452522 2002-09-04 2452512 2002-08-25 10 SVO
43 9.4 2452784 2003-05-24 2452782 2003-05-22 2 SVO
44 10.3 2453066 2004-03-01 2453051 2004-02-15 15 SVO
45 9.7 2453326 2004-11-16 2453321 2004-11-11 5 SVO
46 9.3 2453582 2005-07-30 2453590 2005-08-07 -8 SVO
47 9.7 2453848 2006-04-22 2453860 2006-05-04 -12 SVO
48 9.9 2454112 2007-01-11 2454130 2007-01-29 -18 SVO
49 10.0 2454382 2007-10-08 2454399 2007-10-25 -17 SVO
50 9.5 2454639 2008-06-21 2454669 2008-07-21 -30 SVO
51 9.9 2454911 2009-03-20 2454939 2009-04-17 -28 SVO
52 9.7 2455170 2009-12-04 2455208 2010-01-11 -38 SVO
53 9.9 2455452 2010-09-12 2455478 2010-10-08 -26 SVO
54 10.4 2455726 2011-06-13 2455748 2011-07-05 -22 SVO
55 9.6 2455992 2012-03-05 2456017 2012-03-30 -25 SVO
56 10.1 2456253 2012-11-21 2456287 2012-12-25 -34 SVO
57 9.3 2456518 2013-08-13 2456556 2013-09-20 -38 SVO
58 10.2 2456800 2014-05-22 2456826 2014-06-17 -26 SVO
59 9.4 2457056 2015-02-02 2457096 2015-03-14 -40 SVO
60   2457325 2015-10-29 2457365 2015-12-08 -40 SVO
61 9.3 2457597 2016-07-27 2457635 2016-09-03 -38 SVO
62   2457865 2017-04-21 2457905 2017-05-31 -40 SVO
63   2458135 2018-01-16 2458174 2018-02-24 -39 SVO
64 9.6 2458395 2018-10-03 2458444 2018-11-21 -49 SVO
65 9.2 2458656 2019-06-21 2458714 2019-08-18 -58 SVO
66 9.5 2458932 2020-03-23 2458983 2020-05-13 -51 SVO
67 9.6 2459203 2020-12-19 2459253 2021-02-07 -50 SVO
68 9.7 2459477 2021-09-19 2459523 2021-11-04 -46 SVO
69 9.4 2459749 2022-06-18 2459792 2022-07-31 -43 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.