Maxima for Z Cep
Period: 279.08, Epoch: 2442143.9
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 2415631 1901-09-03 -11 AnHar, 1909, vol 55, p 95
-93   2416177 1903-03-03 2416189 1903-03-15 -12 AnHar, 1909, vol 55, p 95
-92   2416463 1903-12-14 2416468 1903-12-19 -5 SVO
-91   2416742 1904-09-18 2416747 1904-09-23 -5 AAVSO
-90   2417018 1905-06-21 2417026 1905-06-29 -8 AAVSO
-89   2417298 1906-03-28 2417305 1906-04-04 -7 AAVSO
-88   2417591 1907-01-15 2417584 1907-01-08 7 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 2419538 1912-05-15 -8 AAVSO
-80 10.4 2419819 1913-02-20 2419817 1913-02-18 2 AAVSO
-79 11.1 2420090 1913-11-18 2420096 1913-11-24 -6 AAVSO
-76 10.2 2420922 1916-02-28 2420933 1916-03-10 -11 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 2423445 1923-01-25 15 SVO
-66 11.4 2423746 1923-11-22 2423724 1923-10-31 22 SVO
-65 11.2 2424033 1924-09-04 2424003 1924-08-05 30 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 2427352 1933-10-06 25 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 2434330 1952-11-13 -49 AAVSO
-27   2434560 1953-07-01 2434609 1953-08-19 -49 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 2437679 1962-01-14 -20 SVO
-15 11.5 2437951 1962-10-13 2437958 1962-10-20 -7 SVO
-14 11.3 2438222 1963-07-11 2438237 1963-07-26 -15 AAVSO
-13 10.7 2438509 1964-04-23 2438516 1964-04-30 -7 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 2441028 1971-03-17 12 SVO
-3 10.4 2441317 1971-12-31 2441307 1971-12-21 10 SVO
-2 11.3 2441604 1972-10-13 2441586 1972-09-25 18 SVO
-1 11.2 2441884 1973-07-20 2441865 1973-07-01 19 AAVSO
0 10.6 2442167 1974-04-29 2442144 1974-04-06 23 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 2444098 1979-08-12 8 SVO
8 10.8 2444388 1980-05-28 2444377 1980-05-17 11 SVO
9 11.8 2444659 1981-02-23 2444656 1981-02-20 3 SVO
10 11.0 2444933 1981-11-24 2444935 1981-11-26 -2 SVO
11 11.2 2445211 1982-08-29 2445214 1982-09-01 -3 SVO
12 11.3 2445484 1983-05-29 2445493 1983-06-07 -9 SVO
13 10.9 2445760 1984-02-29 2445772 1984-03-12 -12 SVO
14 10.3 2446032 1984-11-27 2446051 1984-12-16 -19 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 2447447 1988-10-12 0 SVO
20 10.8 2447727 1989-07-19 2447726 1989-07-18 1 SVO
21 10.5 2448008 1990-04-26 2448005 1990-04-23 3 SVO
22 10.8 2448292 1991-02-04 2448284 1991-01-27 8 SVO
23 11.7 2448582 1991-11-21 2448563 1991-11-02 19 SVO
24 10.5 2448864 1992-08-29 2448842 1992-08-07 22 SVO
25 10.8 2449143 1993-06-04 2449121 1993-05-13 22 SVO
26 10.7 2449428 1994-03-16 2449400 1994-02-16 28 SVO
27 11.6 2449706 1994-12-19 2449679 1994-11-22 27 SVO
28 10.6 2449978 1995-09-17 2449958 1995-08-28 20 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 2450796 1997-12-13 22 SVO
32 10.6 2451091 1998-10-04 2451075 1998-09-18 16 SVO
33 11.4 2451375 1999-07-15 2451354 1999-06-24 21 SVO
34 11.8 2451657 2000-04-22 2451633 2000-03-29 24 SVO
35 10.8 2451927 2001-01-17 2451912 2001-01-02 15 SVO
36 11.3 2452209 2001-10-26 2452191 2001-10-08 18 SVO
37 11.3 2452486 2002-07-30 2452470 2002-07-14 16 SVO
38 10.8 2452753 2003-04-23 2452749 2003-04-19 4 SVO
39 10.9 2453022 2004-01-17 2453028 2004-01-23 -6 SVO
40 11.5 2453305 2004-10-26 2453307 2004-10-28 -2 SVO
41 11.3 2453586 2005-08-03 2453586 2005-08-03 0 SVO
42 11.0 2453863 2006-05-07 2453865 2006-05-09 -2 SVO
43 10.8 2454138 2007-02-06 2454145 2007-02-13 -7 SVO
44 10.7 2454407 2007-11-02 2454424 2007-11-19 -17 SVO
45 11.1 2454700 2008-08-21 2454703 2008-08-24 -3 SVO
46 10.9 2454972 2009-05-20 2454982 2009-05-30 -10 SVO
47 11.0 2455258 2010-03-02 2455261 2010-03-05 -3 SVO
48 10.4 2455536 2010-12-05 2455540 2010-12-09 -4 SVO
49 10.7 2455813 2011-09-08 2455819 2011-09-14 -6 SVO
50 10.9 2456095 2012-06-16 2456098 2012-06-19 -3 SVO
51 10.5 2456373 2013-03-21 2456377 2013-03-25 -4 SVO
52 11.1 2456651 2013-12-24 2456656 2013-12-29 -5 SVO
53 10.7 2456934 2014-10-03 2456935 2014-10-04 -1 SVO
54 10.9 2457220 2015-07-16 2457214 2015-07-10 6 SVO
55 11.1 2457496 2016-04-17 2457494 2016-04-15 2 SVO
56 10.3 2457768 2017-01-14 2457773 2017-01-19 -5 SVO
57 10.7 2458049 2017-10-22 2458052 2017-10-25 -3 SVO
58 10.7 2458332 2018-08-01 2458331 2018-07-31 1 SVO
59 11.0 2458615 2019-05-11 2458610 2019-05-06 5 SVO
60 10.3 2458889 2020-02-09 2458889 2020-02-09 0 SVO
61 10.5 2459164 2020-11-10 2459168 2020-11-14 -4 SVO
62 10.5 2459441 2021-08-14 2459447 2021-08-20 -6 SVO
63 11.0 2459725 2022-05-25 2459726 2022-05-26 -1 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.