Maxima for Z CrB
Period: 250.88, Epoch: 2442504.1
AAVSO offset: -8

E Mag O (JD) O (dat) C (JD) C (Dat) O-C Source
-108   2415430 1901-02-14 2415409 1901-01-24 21 SVO
-106   2415924 1902-06-23 2415911 1902-06-10 13 SVO
-103   2416673 1904-07-11 2416663 1904-07-01 10 SVO
-102   2416926 1905-03-21 2416914 1905-03-09 12 SVO
-99   2417691 1907-04-25 2417667 1907-04-01 24 AAVSO
-98   2417942 1908-01-01 2417918 1907-12-08 24 AAVSO
-97   2418183 1908-08-29 2418169 1908-08-15 14 AAVSO
-96   2418436 1909-05-09 2418420 1909-04-23 16 GuL, 1920, 1.2
-94 9.8 2418915 1910-08-31 2418921 1910-09-06 -6 AAVSO
-93   2419182 1911-05-25 2419172 1911-05-15 10 AAVSO
-92   2419438 1912-02-05 2419423 1912-01-21 15 AAVSO
-91   2419685 1912-10-09 2419674 1912-09-28 11 AAVSO
-90   2419925 1913-06-06 2419925 1913-06-06 0 SVO
-87 9.2 2420655 1915-06-06 2420677 1915-06-28 -22 AAVSO
-86   2420907 1916-02-13 2420928 1916-03-05 -21 AAVSO
-85   2421179 1916-11-11 2421179 1916-11-11 0 AAVSO
-84 11.1 2421436 1917-07-26 2421430 1917-07-20 6 AAVSO
-83 10.4 2421697 1918-04-13 2421681 1918-03-28 16 SVO
-82   2421927 1918-11-29 2421932 1918-12-04 -5 AAVSO
-81 9.5 2422179 1919-08-08 2422183 1919-08-12 -4 AAVSO
-80   2422448 1920-05-03 2422434 1920-04-19 14 AAVSO
-79   2422691 1921-01-01 2422684 1920-12-25 7 AAVSO
-78 9.7 2422934 1921-09-01 2422935 1921-09-02 -1 AAVSO
-77 10.6 2423187 1922-05-12 2423186 1922-05-11 1 AAVSO
-76 9.2 2423442 1923-01-22 2423437 1923-01-17 5 AAVSO
-75 11.4 2423687 1923-09-24 2423688 1923-09-25 -1 AAVSO
-74 11.0 2423947 1924-06-10 2423939 1924-06-02 8 AAVSO
-73 10.4 2424191 1925-02-09 2424190 1925-02-08 1 AAVSO
-72   2424440 1925-10-16 2424441 1925-10-17 -1 AAVSO
-71 10.5 2424699 1926-07-02 2424692 1926-06-25 7 AAVSO
-70   2424961 1927-03-21 2424942 1927-03-02 19 AAVSO
-68   2425443 1928-07-15 2425444 1928-07-16 -1 AAVSO
-67 10.8 2425714 1929-04-12 2425695 1929-03-24 19 SVO
-66 11.0 2425948 1929-12-02 2425946 1929-11-30 2 AAVSO
-65 9.5 2426207 1930-08-18 2426197 1930-08-08 10 SVO
-64 9.9 2426461 1931-04-29 2426448 1931-04-16 13 SVO
-63 9.8 2426695 1931-12-19 2426699 1931-12-23 -4 AAVSO
-62 9.7 2426965 1932-09-14 2426949 1932-08-29 16 SVO
-61 10.1 2427210 1933-05-17 2427200 1933-05-07 10 SVO
-60 9.4 2427451 1934-01-13 2427451 1934-01-13 0 AAVSO
-59 10.7 2427704 1934-09-23 2427702 1934-09-21 2 AAVSO
-58 10.1 2427965 1935-06-11 2427953 1935-05-30 12 SVO
-56 9.5 2428452 1936-10-10 2428455 1936-10-13 -3 AAVSO
-55 9.7 2428708 1937-06-23 2428706 1937-06-21 2 SVO
-54 8.8 2428947 1938-02-17 2428957 1938-02-27 -10 AAVSO
-53 10.6 2429201 1938-10-29 2429207 1938-11-04 -6 AAVSO
-52 10.1 2429448 1939-07-03 2429458 1939-07-13 -10 SVO
-51 9.9 2429702 1940-03-13 2429709 1940-03-20 -7 AAVSO
-50   2429951 1940-11-17 2429960 1940-11-26 -9 AAVSO
-49 10.6 2430207 1941-07-31 2430211 1941-08-04 -4 SVO
-48 9.8 2430442 1942-03-23 2430462 1942-04-12 -20 AAVSO
-46 9.2 2430958 1943-08-21 2430964 1943-08-27 -6 SVO
-45 11.0 2431207 1944-04-26 2431214 1944-05-03 -7 AAVSO
-44 10.8 2431447 1944-12-22 2431465 1945-01-09 -18 AAVSO
-43 9.7 2431704 1945-09-05 2431716 1945-09-17 -12 SVO
-42 9.7 2431960 1946-05-19 2431967 1946-05-26 -7 SVO
-40 9.5 2432456 1947-09-27 2432469 1947-10-10 -13 SVO
-39 9.7 2432709 1948-06-06 2432720 1948-06-17 -11 SVO
-38 9.5 2432953 1949-02-05 2432971 1949-02-23 -18 AAVSO
-37 9.8 2433207 1949-10-17 2433221 1949-10-31 -14 SVO
-36 9.3 2433462 1950-06-29 2433472 1950-07-09 -10 SVO
-35 9.5 2433711 1951-03-05 2433723 1951-03-17 -12 AAVSO
-34   2433961 1951-11-10 2433974 1951-11-23 -13 AAVSO
-33 9.4 2434225 1952-07-31 2434225 1952-07-31 0 SVO
-32 9.7 2434482 1953-04-14 2434476 1953-04-08 6 AAVSO
-31 9.5 2434736 1953-12-24 2434727 1953-12-15 9 AAVSO
-30 10.5 2434981 1954-08-26 2434978 1954-08-23 3 SVO
-29 10.4 2435241 1955-05-13 2435229 1955-05-01 12 SVO
-28   2435493 1956-01-20 2435479 1956-01-06 14 AAVSO
-27 10.0 2435727 1956-09-10 2435730 1956-09-13 -3 SVO
-26 9.5 2435980 1957-05-21 2435981 1957-05-22 -1 SVO
-25 9.8 2436232 1958-01-28 2436232 1958-01-28 0 AAVSO
-24 10.0 2436481 1958-10-04 2436483 1958-10-06 -2 AAVSO
-23 9.8 2436730 1959-06-10 2436734 1959-06-14 -4 SVO
-22 9.4 2436981 1960-02-16 2436985 1960-02-20 -4 AAVSO
-21 9.8 2437230 1960-10-22 2437236 1960-10-28 -6 AAVSO
-20 9.1 2437473 1961-06-22 2437486 1961-07-05 -13 SVO
-19 10.4 2437732 1962-03-08 2437737 1962-03-13 -5 SVO
-18 10.8 2437981 1962-11-12 2437988 1962-11-19 -7 AAVSO
-17 9.7 2438227 1963-07-16 2438239 1963-07-28 -12 SVO
-16 9.9 2438480 1964-03-25 2438490 1964-04-04 -10 SVO
-15 10.7 2438737 1964-12-07 2438741 1964-12-11 -4 AAVSO
-14 10.1 2438988 1965-08-15 2438992 1965-08-19 -4 SVO
-13 9.5 2439240 1966-04-24 2439243 1966-04-27 -3 SVO
-12 10.7 2439492 1967-01-01 2439493 1967-01-02 -1 AAVSO
-11 9.6 2439735 1967-09-01 2439744 1967-09-10 -9 SVO
-10 9.6 2439984 1968-05-07 2439995 1968-05-18 -11 SVO
-9 10.2 2440240 1969-01-18 2440246 1969-01-24 -6 AAVSO
-8 10.2 2440486 1969-09-21 2440497 1969-10-02 -11 SVO
-7 10.0 2440737 1970-05-30 2440748 1970-06-10 -11 SVO
-6 9.5 2440981 1971-01-29 2440999 1971-02-16 -18 AAVSO
-5 10.2 2441233 1971-10-08 2441250 1971-10-25 -17 AAVSO
-4 9.8 2441485 1972-06-16 2441501 1972-07-02 -16 SVO
-3 10.0 2441732 1973-02-18 2441751 1973-03-09 -19 AAVSO
-2 9.8 2441988 1973-11-01 2442002 1973-11-15 -14 SVO
-1 9.7 2442236 1974-07-07 2442253 1974-07-24 -17 SVO
0 9.1 2442489 1975-03-17 2442504 1975-04-01 -15 SVO
1 9.6 2442740 1975-11-23 2442755 1975-12-08 -15 SVO
2 9.9 2442991 1976-07-31 2443006 1976-08-15 -15 SVO
3 9.5 2443246 1977-04-12 2443257 1977-04-23 -11 SVO
4 9.7 2443509 1977-12-31 2443508 1977-12-30 1 SVO
5 10.0 2443751 1978-08-30 2443758 1978-09-06 -7 SVO
6 9.1 2444000 1979-05-06 2444009 1979-05-15 -9 SVO
7 9.7 2444253 1980-01-14 2444260 1980-01-21 -7 SVO
8 9.1 2444506 1980-09-23 2444511 1980-09-28 -5 SVO
9 10.3 2444762 1981-06-06 2444762 1981-06-06 0 SVO
10 9.5 2445008 1982-02-07 2445013 1982-02-12 -5 SVO
11 10.1 2445254 1982-10-11 2445264 1982-10-21 -10 SVO
12 9.7 2445507 1983-06-21 2445515 1983-06-29 -8 SVO
13 9.7 2445758 1984-02-27 2445766 1984-03-06 -8 SVO
14 9.4 2446007 1984-11-02 2446016 1984-11-11 -9 SVO
15 9.4 2446260 1985-07-13 2446267 1985-07-20 -7 SVO
16 9.8 2446508 1986-03-18 2446518 1986-03-28 -10 SVO
17 9.1 2446754 1986-11-19 2446769 1986-12-04 -15 SVO
18 10.3 2447016 1987-08-08 2447020 1987-08-12 -4 SVO
19 10.0 2447264 1988-04-12 2447271 1988-04-19 -7 SVO
20 9.6 2447515 1988-12-19 2447522 1988-12-26 -7 SVO
21 10.2 2447768 1989-08-29 2447773 1989-09-03 -5 SVO
22 9.9 2448020 1990-05-08 2448023 1990-05-11 -3 SVO
23 9.4 2448270 1991-01-13 2448274 1991-01-17 -4 SVO
24 10.2 2448524 1991-09-24 2448525 1991-09-25 -1 SVO
25 9.5 2448777 1992-06-03 2448776 1992-06-02 1 SVO
26   2449025 1993-02-06 2449027 1993-02-08 -2 AAVSO
27 10.3 2449274 1993-10-13 2449278 1993-10-17 -4 SVO
28 10.4 2449529 1994-06-25 2449529 1994-06-25 0 SVO
29 9.3 2449781 1995-03-04 2449780 1995-03-03 1 SVO
30 10.5 2450038 1995-11-16 2450030 1995-11-08 8 SVO
31 10.0 2450285 1996-07-20 2450281 1996-07-16 4 SVO
32 9.7 2450534 1997-03-26 2450532 1997-03-24 2 SVO
33 9.7 2450786 1997-12-03 2450783 1997-11-30 3 SVO
34 9.6 2451036 1998-08-10 2451034 1998-08-08 2 SVO
35 9.4 2451283 1999-04-14 2451285 1999-04-16 -2 SVO
36 10.2 2451537 1999-12-24 2451536 1999-12-23 1 SVO
37 9.7 2451796 2000-09-08 2451787 2000-08-30 9 SVO
38 9.7 2452046 2001-05-16 2452038 2001-05-08 8 SVO
39 9.6 2452300 2002-01-25 2452288 2002-01-13 12 SVO
40 9.3 2452546 2002-09-28 2452539 2002-09-21 7 SVO
41 9.4 2452802 2003-06-11 2452790 2003-05-30 12 SVO
42 9.5 2453061 2004-02-25 2453041 2004-02-05 20 SVO
43 9.4 2453305 2004-10-26 2453292 2004-10-13 13 SVO
44 9.3 2453554 2005-07-02 2453543 2005-06-21 11 SVO
45 10.3 2453808 2006-03-13 2453794 2006-02-27 14 SVO
46 9.7 2454054 2006-11-14 2454045 2006-11-05 9 SVO
47 9.2 2454302 2007-07-20 2454295 2007-07-13 7 SVO
48 10.3 2454557 2008-03-31 2454546 2008-03-20 11 SVO
49 9.8 2454806 2008-12-05 2454797 2008-11-26 9 SVO
50 10.3 2455056 2009-08-12 2455048 2009-08-04 8 SVO
51 9.7 2455308 2010-04-21 2455299 2010-04-12 9 SVO
52 9.4 2455562 2010-12-31 2455550 2010-12-19 12 SVO
53 9.5 2455814 2011-09-09 2455801 2011-08-27 13 SVO
54 9.4 2456063 2012-05-15 2456052 2012-05-04 11 SVO
55 9.9 2456321 2013-01-28 2456302 2013-01-09 19 AAVSO
56 9.5 2456562 2013-09-26 2456553 2013-09-17 9 SVO
57 9.4 2456815 2014-06-06 2456804 2014-05-26 11 SVO
58 10.2 2457068 2015-02-14 2457055 2015-02-01 13 SVO
59 9.3 2457311 2015-10-15 2457306 2015-10-10 5 SVO
60 9.8 2457567 2016-06-27 2457557 2016-06-17 10 SVO
61 9.9 2457823 2017-03-10 2457808 2017-02-23 15 SVO
62 9.4 2458064 2017-11-06 2458059 2017-11-01 5 SVO
63 9.3 2458311 2018-07-11 2458310 2018-07-10 1 SVO
64 10.2 2458568 2019-03-25 2458560 2019-03-17 8 SVO
65 9.7 2458817 2019-11-29 2458811 2019-11-23 6 SVO
66 9.4 2459060 2020-07-29 2459062 2020-07-31 -2 SVO
67 9.6 2459312 2021-04-07 2459313 2021-04-08 -1 SVO
68 10.0 2459563 2021-12-14 2459564 2021-12-15 -1 SVO
69 9.3 2459814 2022-08-22 2459815 2022-08-23 -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.