Maxima for Z Oph
Period: 350.2, Epoch: 2442238
Back to main page  Mean light curve  Period diagram

E Mag O (JD) O (dat) C (JD) C (Dat) O-C Source
-87   2411897 1891-06-13 2411771 1891-02-07 126 AnHar, 1909, vol 55, p 95
-85   2412601 1893-05-17 2412471 1893-01-07 130 AnHar, 1909, vol 55, p 95
-84   2412949 1894-04-30 2412821 1893-12-23 128 AnHar, 1909, vol 55, p 95
-83   2413285 1895-04-01 2413171 1894-12-08 114 AnHar, 1909, vol 55, p 95
-82   2413630 1896-03-11 2413522 1895-11-24 108 SVO
-81   2414000 1897-03-16 2413872 1896-11-08 128 AnHar, 1909, vol 55, p 95
-80   2414310 1898-01-20 2414222 1897-10-24 88 AnHar, 1952, vol 115
-77   2415380 1900-12-26 2415273 1900-09-10 107 AnHar, 1909, vol 55, p 95
-76   2415722 1901-12-03 2415623 1901-08-26 99 AnHar, 1909, vol 55, p 95
-75   2416086 1902-12-02 2415973 1902-08-11 113 AnHar, 1909, vol 55, p 95
-74   2416448 1903-11-29 2416323 1903-07-27 125 GuL, 1920, 1.2
-73   2416771 1904-10-17 2416673 1904-07-11 98 SVO
-72 8.5 2417128 1905-10-09 2417024 1905-06-27 104 AAVSO
-71 8.4 2417477 1906-09-23 2417374 1906-06-12 103 AAVSO
-70 7.6 2417826 1907-09-07 2417724 1907-05-28 102 AAVSO
-69 7.8 2418179 1908-08-25 2418074 1908-05-12 105 AAVSO
-68 8.0 2418521 1909-08-02 2418424 1909-04-27 97 AAVSO
-67 7.8 2418873 1910-07-20 2418775 1910-04-13 98 AAVSO
-66   2419234 1911-07-16 2419125 1911-03-29 109 SVO
-65 7.8 2419566 1912-06-12 2419475 1912-03-13 91 AAVSO
-64 7.6 2419919 1913-05-31 2419825 1913-02-26 94 AAVSO
-63 8.1 2420269 1914-05-16 2420175 1914-02-11 94 AAVSO
-62 7.6 2420617 1915-04-29 2420526 1915-01-28 91 AAVSO
-61 8.5 2420963 1916-04-09 2420876 1916-01-13 87 AAVSO
-60 7.6 2421309 1917-03-21 2421226 1916-12-28 83 AAVSO
-59 8.3 2421669 1918-03-16 2421576 1917-12-13 93 AAVSO
-58 8.0 2422019 1919-03-01 2421926 1918-11-28 93 AAVSO
-57 8.2 2422358 1920-02-03 2422277 1919-11-14 81 AAVSO
-56 8.2 2422717 1921-01-27 2422627 1920-10-29 90 SVO
-55 8.3 2423080 1922-01-25 2422977 1921-10-14 103 SVO
-54 8.1 2423432 1923-01-12 2423327 1922-09-29 105 SVO
-53 8.0 2423770 1923-12-16 2423677 1923-09-14 93 SVO
-52 8.5 2424146 1924-12-26 2424028 1924-08-30 118 SVO
-51 8.0 2424475 1925-11-20 2424378 1925-08-15 97 SVO
-50 9.0 2424847 1926-11-27 2424728 1926-07-31 119 SVO
-49 8.1 2425174 1927-10-20 2425078 1927-07-16 96 SVO
-48 8.9 2425541 1928-10-21 2425428 1928-06-30 113 SVO
-47 7.9 2425861 1929-09-06 2425779 1929-06-16 82 SVO
-46 9.6 2426269 1930-10-19 2426129 1930-06-01 140 SVO
-45 8.6 2426577 1931-08-23 2426479 1931-05-17 98 SVO
-44 8.0 2426921 1932-08-01 2426829 1932-05-01 92 SVO
-43 8.2 2427267 1933-07-13 2427179 1933-04-16 88 SVO
-42 8.1 2427609 1934-06-20 2427530 1934-04-02 79 SVO
-41 8.4 2427963 1935-06-09 2427880 1935-03-18 83 SVO
-40 8.2 2428314 1936-05-25 2428230 1936-03-02 84 SVO
-39 8.2 2428654 1937-04-30 2428580 1937-02-15 74 AAVSO
-38 8.6 2429015 1938-04-26 2428930 1938-01-31 85 SVO
-37 8.2 2429346 1939-03-23 2429281 1939-01-17 65 AAVSO
-36 8.6 2429699 1940-03-10 2429631 1940-01-02 68 AAVSO
-35 8.0 2430036 1941-02-10 2429981 1940-12-17 55 AAVSO
-34   2430386 1942-01-26 2430331 1941-12-02 55 AAVSO
-33   2430737 1943-01-12 2430681 1942-11-17 56 AAVSO
-32 8.2 2431073 1943-12-14 2431032 1943-11-03 41 AAVSO
-31 8.8 2431431 1944-12-06 2431382 1944-10-18 49 SVO
-30 8.2 2431782 1945-11-22 2431732 1945-10-03 50 SVO
-29 8.4 2432116 1946-10-22 2432082 1946-09-18 34 SVO
-28 8.4 2432474 1947-10-15 2432432 1947-09-03 42 SVO
-27 8.1 2432820 1948-09-25 2432783 1948-08-19 37 SVO
-26 8.4 2433175 1949-09-15 2433133 1949-08-04 42 SVO
-25 7.8 2433514 1950-08-20 2433483 1950-07-20 31 SVO
-24 8.1 2433856 1951-07-28 2433833 1951-07-05 23 SVO
-23 8.2 2434202 1952-07-08 2434183 1952-06-19 19 SVO
-22 8.1 2434547 1953-06-18 2434534 1953-06-05 13 SVO
-21 8.3 2434907 1954-06-13 2434884 1954-05-21 23 SVO
-20 8.1 2435263 1955-06-04 2435234 1955-05-06 29 AAVSO
-19 8.4 2435642 1956-06-17 2435584 1956-04-20 58 SVO
-18 7.9 2435969 1957-05-10 2435934 1957-04-05 35 SVO
-17 8.2 2436334 1958-05-10 2436285 1958-03-22 49 SVO
-16 8.2 2436683 1959-04-24 2436635 1959-03-07 48 AAVSO
-15 8.5 2437036 1960-04-11 2436985 1960-02-20 51 AAVSO
-14 8.6 2437382 1961-03-23 2437335 1961-02-04 47 AAVSO
-13 8.4 2437728 1962-03-04 2437685 1962-01-20 43 AAVSO
-12 8.7 2438074 1963-02-13 2438036 1963-01-06 38 AAVSO
-11 8.4 2438404 1964-01-09 2438386 1963-12-22 18 AAVSO
-10 8.0 2438743 1964-12-13 2438736 1964-12-06 7 AAVSO
-9 8.4 2439084 1965-11-19 2439086 1965-11-21 -2 SVO
-8 8.5 2439438 1966-11-08 2439436 1966-11-06 2 SVO
-7 8.5 2439786 1967-10-22 2439787 1967-10-23 -1 SVO
-6 8.7 2440147 1968-10-17 2440137 1968-10-07 10 SVO
-5 8.2 2440478 1969-09-13 2440487 1969-09-22 -9 SVO
-4 9.3 2440843 1970-09-13 2440837 1970-09-07 6 SVO
-3 8.3 2441175 1971-08-11 2441187 1971-08-23 -12 SVO
-2 9.3 2441538 1972-08-08 2441538 1972-08-08 0 SVO
-1 8.4 2441880 1973-07-16 2441888 1973-07-24 -8 SVO
0 7.8 2442198 1974-05-30 2442238 1974-07-09 -40 SVO
1 8.7 2442584 1975-06-20 2442588 1975-06-24 -4 SVO
2 8.1 2442909 1976-05-10 2442938 1976-06-08 -29 SVO
3 8.6 2443289 1977-05-25 2443289 1977-05-25 0 SVO
4 8.1 2443637 1978-05-08 2443639 1978-05-10 -2 SVO
5 8.3 2443991 1979-04-27 2443989 1979-04-25 2 SVO
6 8.2 2444337 1980-04-07 2444339 1980-04-09 -2 SVO
7 8.9 2444711 1981-04-16 2444689 1981-03-25 22 SVO
8 8.0 2445050 1982-03-21 2445040 1982-03-11 10 SVO
9 8.5 2445414 1983-03-20 2445390 1983-02-24 24 AAVSO
10 8.6 2445774 1984-03-14 2445740 1984-02-09 34 AAVSO
11 8.1 2446101 1985-02-04 2446090 1985-01-24 11 SVO
12 8.4 2446463 1986-02-01 2446440 1986-01-09 23 SVO
13 8.2 2446812 1987-01-16 2446791 1986-12-26 21 SVO
14 8.4 2447150 1987-12-20 2447141 1987-12-11 9 SVO
15 9.1 2447514 1988-12-18 2447491 1988-11-25 23 SVO
16 8.7 2447870 1989-12-09 2447841 1989-11-10 29 SVO
17 8.5 2448223 1990-11-27 2448191 1990-10-26 32 SVO
18 8.1 2448560 1991-10-30 2448542 1991-10-12 18 SVO
19 8.4 2448904 1992-10-08 2448892 1992-09-26 12 SVO
20 8.0 2449253 1993-09-22 2449242 1993-09-11 11 SVO
21 8.3 2449612 1994-09-16 2449592 1994-08-27 20 SVO
22 8.2 2449955 1995-08-25 2449942 1995-08-12 13 SVO
23 8.4 2450311 1996-08-15 2450293 1996-07-28 18 SVO
24 8.4 2450653 1997-07-23 2450643 1997-07-13 10 SVO
25 8.0 2450991 1998-06-26 2450993 1998-06-28 -2 SVO
26 8.6 2451375 1999-07-15 2451343 1999-06-13 32 SVO
27 7.9 2451693 2000-05-28 2451693 2000-05-28 0 SVO
28 8.2 2452043 2001-05-13 2452044 2001-05-14 -1 SVO
29 8.2 2452396 2002-05-01 2452394 2002-04-29 2 SVO
30 8.3 2452744 2003-04-14 2452744 2003-04-14 0 SVO
31 8.4 2453092 2004-03-27 2453094 2004-03-29 -2 SVO
32   2453439 2005-03-09 2453444 2005-03-14 -5 AAVSO
33 8.3 2453785 2006-02-18 2453795 2006-02-28 -10 SVO
34 8.4 2454137 2007-02-05 2454145 2007-02-13 -8 SVO
35 8.1 2454488 2008-01-22 2454495 2008-01-29 -7 SVO
36 8.0 2454816 2008-12-15 2454845 2009-01-13 -29 SVO
37 8.5 2455188 2009-12-22 2455195 2009-12-29 -7 SVO
38 8.3 2455543 2010-12-12 2455546 2010-12-15 -3 SVO
39 8.0 2455886 2011-11-20 2455896 2011-11-30 -10 SVO
40 8.2 2456244 2012-11-12 2456246 2012-11-14 -2 SVO
41 8.1 2456590 2013-10-24 2456596 2013-10-30 -6 SVO
42 8.8 2456955 2014-10-24 2456946 2014-10-15 9 SVO
43 8.1 2457311 2015-10-15 2457297 2015-10-01 14 SVO
44 8.1 2457657 2016-09-25 2457647 2016-09-15 10 SVO
45 8.2 2458008 2017-09-11 2457997 2017-08-31 11 SVO
46 8.5 2458364 2018-09-02 2458347 2018-08-16 17 SVO
47 8.7 2458722 2019-08-26 2458697 2019-08-01 25 SVO
48 8.0 2459050 2020-07-19 2459048 2020-07-17 2 SVO
49 8.7 2459417 2021-07-21 2459398 2021-07-02 19 SVO
50 7.9 2459740 2022-06-09 2459748 2022-06-17 -8 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.