Maxima for Z Cep
Period: 279.07, Epoch: 2442143.4
AAVSO offset: -2

E Mag O (JD) O (dat) C (JD) C (Dat) O-C Source
-96   2415350 1900-11-26 2415352 1900-11-28 -2 SVO
-95   2415620 1901-08-23 2415632 1901-09-04 -12 AnHar, 1909, vol 55, p 95
-93   2416177 1903-03-03 2416190 1903-03-16 -13 AnHar, 1909, vol 55, p 95
-92   2416463 1903-12-14 2416469 1903-12-20 -6 SVO
-91   2416742 1904-09-18 2416748 1904-09-24 -6 AAVSO
-90   2417018 1905-06-21 2417027 1905-06-30 -9 AAVSO
-89   2417298 1906-03-28 2417306 1906-04-05 -8 AAVSO
-88   2417591 1907-01-15 2417585 1907-01-09 6 AAVSO
-87   2417878 1907-10-29 2417864 1907-10-15 14 AAVSO
-86   2418160 1908-08-06 2418143 1908-07-20 17 AAVSO
-85 10.6 2418427 1909-04-30 2418422 1909-04-25 5 AAVSO
-84 10.5 2418688 1910-01-16 2418701 1910-01-29 -13 AAVSO
-83   2418978 1910-11-02 2418980 1910-11-04 -2 AAVSO
-82   2419248 1911-07-30 2419259 1911-08-10 -11 AAVSO
-81   2419530 1912-05-07 2419539 1912-05-16 -9 AAVSO
-80 10.4 2419819 1913-02-20 2419818 1913-02-19 1 AAVSO
-79 11.1 2420090 1913-11-18 2420097 1913-11-25 -7 AAVSO
-76 10.2 2420922 1916-02-28 2420934 1916-03-11 -12 AAVSO
-75   2421212 1916-12-14 2421213 1916-12-15 -1 AAVSO
-74 11.0 2421495 1917-09-23 2421492 1917-09-20 3 AAVSO
-73 11.4 2421777 1918-07-02 2421771 1918-06-26 6 AAVSO
-72 10.2 2422060 1919-04-11 2422050 1919-04-01 10 AAVSO
-71 10.5 2422335 1920-01-11 2422329 1920-01-05 6 AAVSO
-70 10.3 2422606 1920-10-08 2422608 1920-10-10 -2 AAVSO
-69 11.0 2422894 1921-07-23 2422887 1921-07-16 7 AAVSO
-68 10.5 2423172 1922-04-27 2423166 1922-04-21 6 AAVSO
-67 10.9 2423460 1923-02-09 2423446 1923-01-26 14 SVO
-66 11.4 2423746 1923-11-22 2423725 1923-11-01 21 SVO
-65 11.2 2424033 1924-09-04 2424004 1924-08-06 29 SVO
-64 11.0 2424306 1925-06-04 2424283 1925-05-12 23 SVO
-63 11.2 2424584 1926-03-09 2424562 1926-02-15 22 SVO
-62 11.0 2424867 1926-12-17 2424841 1926-11-21 26 SVO
-61 10.9 2425151 1927-09-27 2425120 1927-08-27 31 SVO
-60 11.2 2425427 1928-06-29 2425399 1928-06-01 28 SVO
-59 11.0 2425705 1929-04-03 2425678 1929-03-07 27 SVO
-58 10.6 2425985 1930-01-08 2425957 1929-12-11 28 SVO
-57 10.8 2426266 1930-10-16 2426236 1930-09-16 30 SVO
-56 10.6 2426546 1931-07-23 2426515 1931-06-22 31 SVO
-55 10.7 2426812 1932-04-14 2426794 1932-03-27 18 AAVSO
-54 10.5 2427098 1933-01-25 2427073 1932-12-31 25 SVO
-53 11.3 2427377 1933-10-31 2427353 1933-10-07 24 AAVSO
-52 10.6 2427658 1934-08-08 2427632 1934-07-13 26 SVO
-51 11.4 2427937 1935-05-14 2427911 1935-04-18 26 SVO
-50 10.5 2428223 1936-02-24 2428190 1936-01-22 33 SVO
-49 11.7 2428500 1936-11-27 2428469 1936-10-27 31 SVO
-48 11.4 2428778 1937-09-01 2428748 1937-08-02 30 SVO
-47 10.6 2429040 1938-05-21 2429027 1938-05-08 13 SVO
-46 10.9 2429317 1939-02-22 2429306 1939-02-11 11 SVO
-45 10.6 2429597 1939-11-29 2429585 1939-11-17 12 SVO
-44 11.2 2429867 1940-08-25 2429864 1940-08-22 3 SVO
-43   2430138 1941-05-23 2430143 1941-05-28 -5 AAVSO
-42 10.7 2430410 1942-02-19 2430422 1942-03-03 -12 AAVSO
-41   2430702 1942-12-08 2430701 1942-12-07 1 AAVSO
-40 11.6 2430984 1943-09-16 2430981 1943-09-13 3 AAVSO
-39   2431258 1944-06-16 2431260 1944-06-18 -2 AAVSO
-38 10.2 2431522 1945-03-07 2431539 1945-03-24 -17 AAVSO
-37 11.0 2431802 1945-12-12 2431818 1945-12-28 -16 AAVSO
-36 10.5 2432075 1946-09-11 2432097 1946-10-03 -22 SVO
-35   2432345 1947-06-08 2432376 1947-07-09 -31 AAVSO
-34 11.6 2432632 1948-03-21 2432655 1948-04-13 -23 AAVSO
-33 10.6 2432915 1948-12-29 2432934 1949-01-17 -19 SVO
-32 10.9 2433176 1949-09-16 2433213 1949-10-23 -37 SVO
-31 10.9 2433453 1950-06-20 2433492 1950-07-29 -39 AAVSO
-30 11.5 2433727 1951-03-21 2433771 1951-05-04 -44 AAVSO
-29 10.7 2434009 1951-12-28 2434050 1952-02-07 -41 AAVSO
-28 11.5 2434281 1952-09-25 2434329 1952-11-12 -48 AAVSO
-27   2434560 1953-07-01 2434608 1953-08-18 -48 AAVSO
-26 11.0 2434839 1954-04-06 2434888 1954-05-25 -49 AAVSO
-25 10.7 2435115 1955-01-07 2435167 1955-02-28 -52 SVO
-24 11.1 2435388 1955-10-07 2435446 1955-12-04 -58 SVO
-23 10.8 2435670 1956-07-15 2435725 1956-09-08 -55 AAVSO
-22 10.6 2435949 1957-04-20 2436004 1957-06-14 -55 AAVSO
-21 11.2 2436243 1958-02-08 2436283 1958-03-20 -40 SVO
-20 11.2 2436522 1958-11-14 2436562 1958-12-24 -40 SVO
-19 10.3 2436798 1959-08-17 2436841 1959-09-29 -43 SVO
-18   2437071 1960-05-16 2437120 1960-07-04 -49 AAVSO
-17 10.8 2437363 1961-03-04 2437399 1961-04-09 -36 AAVSO
-16 10.9 2437659 1961-12-25 2437678 1962-01-13 -19 SVO
-15 11.5 2437951 1962-10-13 2437957 1962-10-19 -6 SVO
-14 11.3 2438222 1963-07-11 2438236 1963-07-25 -14 AAVSO
-13 10.7 2438509 1964-04-23 2438515 1964-04-29 -6 SVO
-12 11.2 2438792 1965-01-31 2438795 1965-02-03 -3 SVO
-11 11.3 2439074 1965-11-09 2439074 1965-11-09 0 SVO
-10 10.5 2439349 1966-08-11 2439353 1966-08-15 -4 AAVSO
-9 10.5 2439620 1967-05-09 2439632 1967-05-21 -12 AAVSO
-8 11.1 2439898 1968-02-11 2439911 1968-02-24 -13 AAVSO
-7 10.6 2440198 1968-12-07 2440190 1968-11-29 8 SVO
-6 12.1 2440484 1969-09-19 2440469 1969-09-04 15 SVO
-5   2440759 1970-06-21 2440748 1970-06-10 11 AAVSO
-4 11.0 2441040 1971-03-29 2441027 1971-03-16 13 SVO
-3 10.4 2441317 1971-12-31 2441306 1971-12-20 11 SVO
-2 11.3 2441604 1972-10-13 2441585 1972-09-24 19 SVO
-1 11.2 2441884 1973-07-20 2441864 1973-06-30 20 AAVSO
0 10.6 2442167 1974-04-29 2442143 1974-04-05 24 SVO
1 10.9 2442444 1975-01-31 2442423 1975-01-10 21 SVO
2 11.4 2442717 1975-10-31 2442702 1975-10-16 15 SVO
3 10.9 2442998 1976-08-07 2442981 1976-07-21 17 SVO
4 11.0 2443267 1977-05-03 2443260 1977-04-26 7 SVO
5 11.1 2443557 1978-02-17 2443539 1978-01-30 18 SVO
6 11.0 2443833 1978-11-20 2443818 1978-11-05 15 SVO
7 10.9 2444106 1979-08-20 2444097 1979-08-11 9 SVO
8 10.8 2444388 1980-05-28 2444376 1980-05-16 12 SVO
9 11.8 2444659 1981-02-23 2444655 1981-02-19 4 SVO
10 11.0 2444933 1981-11-24 2444934 1981-11-25 -1 SVO
11 11.2 2445211 1982-08-29 2445213 1982-08-31 -2 SVO
12 11.3 2445484 1983-05-29 2445492 1983-06-06 -8 SVO
13 10.9 2445760 1984-02-29 2445771 1984-03-11 -11 SVO
14 10.3 2446032 1984-11-27 2446050 1984-12-15 -18 SVO
15 11.1 2446316 1985-09-07 2446330 1985-09-21 -14 SVO
16 10.9 2446601 1986-06-19 2446609 1986-06-27 -8 SVO
17 11.4 2446878 1987-03-23 2446888 1987-04-02 -10 SVO
18 11.0 2447165 1988-01-04 2447167 1988-01-06 -2 SVO
19 11.1 2447447 1988-10-12 2447446 1988-10-11 1 SVO
20 10.8 2447727 1989-07-19 2447725 1989-07-17 2 SVO
21 10.5 2448008 1990-04-26 2448004 1990-04-22 4 SVO
22 10.8 2448292 1991-02-04 2448283 1991-01-26 9 SVO
23 11.7 2448582 1991-11-21 2448562 1991-11-01 20 SVO
24 10.5 2448864 1992-08-29 2448841 1992-08-06 23 SVO
25 10.8 2449143 1993-06-04 2449120 1993-05-12 23 SVO
26 10.7 2449428 1994-03-16 2449399 1994-02-15 29 SVO
27 11.6 2449706 1994-12-19 2449678 1994-11-21 28 SVO
28 10.6 2449978 1995-09-17 2449957 1995-08-27 21 SVO
29 11.9 2450268 1996-07-03 2450237 1996-06-02 31 SVO
30 11.0 2450540 1997-04-01 2450516 1997-03-08 24 SVO
31 10.8 2450818 1998-01-04 2450795 1997-12-12 23 SVO
32 10.6 2451091 1998-10-04 2451074 1998-09-17 17 SVO
33 11.4 2451375 1999-07-15 2451353 1999-06-23 22 SVO
34 11.8 2451657 2000-04-22 2451632 2000-03-28 25 SVO
35 10.8 2451927 2001-01-17 2451911 2001-01-01 16 SVO
36 11.3 2452209 2001-10-26 2452190 2001-10-07 19 SVO
37 11.3 2452486 2002-07-30 2452469 2002-07-13 17 SVO
38 10.8 2452753 2003-04-23 2452748 2003-04-18 5 SVO
39 10.9 2453022 2004-01-17 2453027 2004-01-22 -5 SVO
40 11.5 2453305 2004-10-26 2453306 2004-10-27 -1 SVO
41 11.3 2453586 2005-08-03 2453585 2005-08-02 1 SVO
42 11.0 2453863 2006-05-07 2453865 2006-05-09 -2 SVO
43 10.8 2454138 2007-02-06 2454144 2007-02-12 -6 SVO
44 10.7 2454407 2007-11-02 2454423 2007-11-18 -16 SVO
45 11.1 2454700 2008-08-21 2454702 2008-08-23 -2 SVO
46 10.9 2454972 2009-05-20 2454981 2009-05-29 -9 SVO
47 11.0 2455258 2010-03-02 2455260 2010-03-04 -2 SVO
48 10.4 2455536 2010-12-05 2455539 2010-12-08 -3 SVO
49 10.7 2455813 2011-09-08 2455818 2011-09-13 -5 SVO
50 10.9 2456095 2012-06-16 2456097 2012-06-18 -2 SVO
51 10.5 2456373 2013-03-21 2456376 2013-03-24 -3 SVO
52 11.1 2456651 2013-12-24 2456655 2013-12-28 -4 SVO
53 10.7 2456934 2014-10-03 2456934 2014-10-03 0 SVO
54 10.9 2457220 2015-07-16 2457213 2015-07-09 7 SVO
55 11.1 2457496 2016-04-17 2457492 2016-04-13 4 SVO
56 10.3 2457768 2017-01-14 2457772 2017-01-18 -4 SVO
57 10.7 2458049 2017-10-22 2458051 2017-10-24 -2 SVO
58 10.7 2458332 2018-08-01 2458330 2018-07-30 2 SVO
59 11.0 2458615 2019-05-11 2458609 2019-05-05 6 SVO
60 10.3 2458889 2020-02-09 2458888 2020-02-08 1 SVO
61 10.5 2459164 2020-11-10 2459167 2020-11-13 -3 SVO
62 10.5 2459441 2021-08-14 2459446 2021-08-19 -5 SVO
63 11.0 2459725 2022-05-25 2459725 2022-05-25 0 SVO
64 10.8 2459997 2023-02-21 2460004 2023-02-28 -7 SVO
65 10.4 2460267 2023-11-18 2460283 2023-12-04 -16 SVO
66 11.3 2460539 2024-08-16 2460562 2024-09-08 -23 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.