Maxima for X CrB
Period: 241.17, Epoch: 2443719
Back to main page  Mean light curve  Period diagram

E Mag O (JD) O (dat) C (JD) C (Dat) O-C Source
-120   2414780 1899-05-05 2414779 1899-05-04 1 AnHar, 1952, vol 118
-119   2415020 1899-12-31 2415020 1899-12-31 0 AnHar, 1952, vol 118
-117   2415512 1901-05-07 2415502 1901-04-27 10 SVO
-115   2415990 1902-08-28 2415984 1902-08-22 6 AnHar, 1952, vol 118
-114   2416240 1903-05-05 2416226 1903-04-21 14 AnHar, 1952, vol 118
-113   2416480 1903-12-31 2416467 1903-12-18 13 AnHar, 1952, vol 118
-112   2416735 1904-09-11 2416708 1904-08-15 27 SVO
-111   2416980 1905-05-14 2416949 1905-04-13 31 AnHar, 1952, vol 118
-110   2417219 1906-01-08 2417190 1905-12-10 29 AAVSO
-109   2417444 1906-08-21 2417431 1906-08-08 13 AAVSO
-108   2417691 1907-04-25 2417673 1907-04-07 18 AAVSO
-107   2417946 1908-01-05 2417914 1907-12-04 32 AAVSO
-106 8.1 2418187 1908-09-02 2418155 1908-08-01 32 AAVSO
-105   2418422 1909-04-25 2418396 1909-03-30 26 AAVSO
-104   2418668 1909-12-27 2418637 1909-11-26 31 AAVSO
-103 8.6 2418900 1910-08-16 2418878 1910-07-25 22 AAVSO
-102   2419128 1911-04-01 2419120 1911-03-24 8 AAVSO
-101 8.8 2419369 1911-11-28 2419361 1911-11-20 8 SVO
-100 9.0 2419607 1912-07-23 2419602 1912-07-18 5 SVO
-99 9.1 2419846 1913-03-19 2419843 1913-03-16 3 AAVSO
-98   2420101 1913-11-29 2420084 1913-11-12 17 AAVSO
-97 8.9 2420322 1914-07-08 2420326 1914-07-12 -4 SVO
-96   2420566 1915-03-09 2420567 1915-03-10 -1 AAVSO
-95   2420811 1915-11-09 2420808 1915-11-06 3 AAVSO
-94 9.1 2421041 1916-06-26 2421049 1916-07-04 -8 SVO
-93 9.0 2421282 1917-02-22 2421290 1917-03-02 -8 AAVSO
-92 9.7 2421522 1917-10-20 2421531 1917-10-29 -9 AAVSO
-91 8.9 2421754 1918-06-09 2421773 1918-06-28 -19 SVO
-90 9.0 2421988 1919-01-29 2422014 1919-02-24 -26 AAVSO
-89 9.2 2422225 1919-09-23 2422255 1919-10-23 -30 AAVSO
-88 9.1 2422469 1920-05-24 2422496 1920-06-20 -27 SVO
-87   2422719 1921-01-29 2422737 1921-02-16 -18 AAVSO
-86 9.6 2422957 1921-09-24 2422978 1921-10-15 -21 SVO
-85 9.3 2423200 1922-05-25 2423220 1922-06-14 -20 SVO
-84 9.6 2423442 1923-01-22 2423461 1923-02-10 -19 AAVSO
-83 8.8 2423682 1923-09-19 2423702 1923-10-09 -20 AAVSO
-82 9.0 2423918 1924-05-12 2423943 1924-06-06 -25 SVO
-81 9.2 2424158 1925-01-07 2424184 1925-02-02 -26 AAVSO
-80 9.3 2424402 1925-09-08 2424425 1925-10-01 -23 SVO
-79 9.6 2424652 1926-05-16 2424667 1926-05-31 -15 SVO
-78 8.5 2424884 1927-01-03 2424908 1927-01-27 -24 AAVSO
-77 9.6 2425133 1927-09-09 2425149 1927-09-25 -16 AAVSO
-76 9.3 2425372 1928-05-05 2425390 1928-05-23 -18 AAVSO
-75 9.1 2425608 1928-12-27 2425631 1929-01-19 -23 AAVSO
-74 8.8 2425848 1929-08-24 2425872 1929-09-17 -24 SVO
-73 9.5 2426094 1930-04-27 2426114 1930-05-17 -20 SVO
-72 8.8 2426338 1930-12-27 2426355 1931-01-13 -17 SVO
-71 9.2 2426581 1931-08-27 2426596 1931-09-11 -15 SVO
-70 9.0 2426821 1932-04-23 2426837 1932-05-09 -16 SVO
-69 8.9 2427057 1932-12-15 2427078 1933-01-05 -21 SVO
-68 8.8 2427295 1933-08-10 2427319 1933-09-03 -24 SVO
-67 9.1 2427537 1934-04-09 2427561 1934-05-03 -24 SVO
-66 9.4 2427771 1934-11-29 2427802 1934-12-30 -31 AAVSO
-65 8.9 2428026 1935-08-11 2428043 1935-08-28 -17 SVO
-64 9.1 2428259 1936-03-31 2428284 1936-04-25 -25 SVO
-63 9.0 2428502 1936-11-29 2428525 1936-12-22 -23 AAVSO
-62 9.0 2428747 1937-08-01 2428766 1937-08-20 -19 SVO
-61 9.5 2428988 1938-03-30 2429008 1938-04-19 -20 SVO
-60 9.5 2429232 1938-11-29 2429249 1938-12-16 -17 AAVSO
-59 8.9 2429481 1939-08-05 2429490 1939-08-14 -9 SVO
-58 9.0 2429713 1940-03-24 2429731 1940-04-11 -18 AAVSO
-57 9.0 2429944 1940-11-10 2429972 1940-12-08 -28 SVO
-56 9.0 2430190 1941-07-14 2430213 1941-08-06 -23 SVO
-55 9.5 2430444 1942-03-25 2430455 1942-04-05 -11 AAVSO
-54 9.0 2430682 1942-11-18 2430696 1942-12-02 -14 AAVSO
-53 9.1 2430908 1943-07-02 2430937 1943-07-31 -29 SVO
-52 8.9 2431146 1944-02-25 2431178 1944-03-28 -32 SVO
-51 9.1 2431390 1944-10-26 2431419 1944-11-24 -29 AAVSO
-50 8.9 2431636 1945-06-29 2431661 1945-07-24 -25 SVO
-49 9.1 2431872 1946-02-20 2431902 1946-03-22 -30 AAVSO
-48 9.0 2432128 1946-11-03 2432143 1946-11-18 -15 AAVSO
-47 9.1 2432364 1947-06-27 2432384 1947-07-17 -20 SVO
-46 9.1 2432601 1948-02-19 2432625 1948-03-14 -24 SVO
-45 9.0 2432844 1948-10-19 2432866 1948-11-10 -22 SVO
-44 9.3 2433084 1949-06-16 2433108 1949-07-10 -24 SVO
-43 9.0 2433321 1950-02-08 2433349 1950-03-08 -28 AAVSO
-42 9.1 2433564 1950-10-09 2433590 1950-11-04 -26 AAVSO
-41 9.3 2433805 1951-06-07 2433831 1951-07-03 -26 SVO
-40 9.8 2434050 1952-02-07 2434072 1952-02-29 -22 AAVSO
-39 9.2 2434293 1952-10-07 2434313 1952-10-27 -20 AAVSO
-38 9.4 2434531 1953-06-02 2434555 1953-06-26 -24 SVO
-37 9.8 2434773 1954-01-30 2434796 1954-02-22 -23 AAVSO
-36 9.2 2435020 1954-10-04 2435037 1954-10-21 -17 SVO
-35 9.4 2435258 1955-05-30 2435278 1955-06-19 -20 SVO
-34   2435497 1956-01-24 2435519 1956-02-15 -22 AAVSO
-33 9.4 2435746 1956-09-29 2435760 1956-10-13 -14 SVO
-32 9.4 2435991 1957-06-01 2436002 1957-06-12 -11 SVO
-31 9.8 2436225 1958-01-21 2436243 1958-02-08 -18 AAVSO
-30 9.3 2436475 1958-09-28 2436484 1958-10-07 -9 SVO
-29 9.1 2436712 1959-05-23 2436725 1959-06-05 -13 SVO
-28   2436952 1960-01-18 2436966 1960-02-01 -14 AAVSO
-27 9.0 2437200 1960-09-22 2437207 1960-09-29 -7 SVO
-26 10.0 2437442 1961-05-22 2437449 1961-05-29 -7 SVO
-25 9.0 2437684 1962-01-19 2437690 1962-01-25 -6 AAVSO
-24 9.6 2437923 1962-09-15 2437931 1962-09-23 -8 SVO
-23 8.9 2438168 1963-05-18 2438172 1963-05-22 -4 SVO
-22 9.4 2438406 1964-01-11 2438413 1964-01-18 -7 AAVSO
-21 8.8 2438650 1964-09-11 2438654 1964-09-15 -4 SVO
-20 9.5 2438894 1965-05-13 2438896 1965-05-15 -2 SVO
-19 8.7 2439133 1966-01-07 2439137 1966-01-11 -4 AAVSO
-18 9.1 2439386 1966-09-17 2439378 1966-09-09 8 SVO
-17 9.2 2439627 1967-05-16 2439619 1967-05-08 8 SVO
-16 9.4 2439862 1968-01-06 2439860 1968-01-04 2 AAVSO
-15 8.9 2440103 1968-09-03 2440101 1968-09-01 2 SVO
-14 9.6 2440350 1969-05-08 2440343 1969-05-01 7 SVO
-13 9.1 2440591 1970-01-04 2440584 1969-12-28 7 SVO
-12 9.3 2440833 1970-09-03 2440825 1970-08-26 8 SVO
-11 9.1 2441072 1971-04-30 2441066 1971-04-24 6 SVO
-10 9.0 2441311 1971-12-25 2441307 1971-12-21 4 SVO
-9 9.3 2441559 1972-08-29 2441548 1972-08-18 11 SVO
-8 9.1 2441791 1973-04-18 2441790 1973-04-17 1 SVO
-7 9.2 2442041 1973-12-24 2442031 1973-12-14 10 SVO
-6 9.0 2442278 1974-08-18 2442272 1974-08-12 6 SVO
-5 9.6 2442514 1975-04-11 2442513 1975-04-10 1 SVO
-4 8.9 2442754 1975-12-07 2442754 1975-12-07 0 SVO
-3 9.5 2442998 1976-08-07 2442995 1976-08-04 3 SVO
-2 9.0 2443232 1977-03-29 2443237 1977-04-03 -5 SVO
-1 9.3 2443479 1977-12-01 2443478 1977-11-30 1 SVO
0 9.4 2443718 1978-07-28 2443719 1978-07-29 -1 SVO
1 9.3 2443955 1979-03-22 2443960 1979-03-27 -5 SVO
2 9.0 2444189 1979-11-11 2444201 1979-11-23 -12 SVO
3 9.1 2444426 1980-07-05 2444443 1980-07-22 -17 SVO
4 8.9 2444667 1981-03-03 2444684 1981-03-20 -17 SVO
5 9.2 2444899 1981-10-21 2444925 1981-11-16 -26 SVO
6 9.1 2445142 1982-06-21 2445166 1982-07-15 -24 SVO
7 9.0 2445379 1983-02-13 2445407 1983-03-13 -28 SVO
8 9.6 2445622 1983-10-14 2445648 1983-11-09 -26 SVO
9 9.3 2445864 1984-06-12 2445890 1984-07-08 -26 SVO
10 9.7 2446100 1985-02-03 2446131 1985-03-06 -31 SVO
11 9.1 2446340 1985-10-01 2446372 1985-11-02 -32 SVO
12 9.1 2446581 1986-05-30 2446613 1986-07-01 -32 SVO
13 9.0 2446817 1987-01-21 2446854 1987-02-27 -37 SVO
14 8.8 2447059 1987-09-20 2447095 1987-10-26 -36 SVO
15 9.2 2447304 1988-05-22 2447337 1988-06-24 -33 SVO
16 9.1 2447536 1989-01-09 2447578 1989-02-20 -42 SVO
17 8.9 2447776 1989-09-06 2447819 1989-10-19 -43 SVO
18 9.2 2448015 1990-05-03 2448060 1990-06-17 -45 SVO
19 9.5 2448262 1991-01-05 2448301 1991-02-13 -39 SVO
20 9.0 2448510 1991-09-10 2448542 1991-10-12 -32 SVO
21 9.5 2448752 1992-05-09 2448784 1992-06-10 -32 SVO
22 9.1 2448996 1993-01-08 2449025 1993-02-06 -29 SVO
23 9.0 2449233 1993-09-02 2449266 1993-10-05 -33 SVO
24 9.1 2449473 1994-04-30 2449507 1994-06-03 -34 SVO
25 9.3 2449721 1995-01-03 2449748 1995-01-30 -27 SVO
26 9.0 2449960 1995-08-30 2449989 1995-09-28 -29 SVO
27 9.4 2450210 1996-05-06 2450231 1996-05-27 -21 SVO
28 9.3 2450450 1997-01-01 2450472 1997-01-23 -22 SVO
29 9.4 2450699 1997-09-07 2450713 1997-09-21 -14 SVO
30 9.0 2450933 1998-04-29 2450954 1998-05-20 -21 SVO
31 9.2 2451180 1999-01-01 2451195 1999-01-16 -15 SVO
32 9.5 2451424 1999-09-02 2451436 1999-09-14 -12 SVO
33 8.7 2451659 2000-04-24 2451678 2000-05-13 -19 SVO
34 9.3 2451903 2000-12-24 2451919 2001-01-09 -16 SVO
35 9.6 2452143 2001-08-21 2452160 2001-09-07 -17 SVO
36 8.7 2452373 2002-04-08 2452401 2002-05-06 -28 SVO
37 9.5 2452623 2002-12-14 2452642 2003-01-02 -19 SVO
38 9.3 2452865 2003-08-13 2452883 2003-08-31 -18 SVO
39 8.8 2453099 2004-04-03 2453125 2004-04-29 -26 SVO
40 9.1 2453344 2004-12-04 2453366 2004-12-26 -22 SVO
41 9.5 2453589 2005-08-06 2453607 2005-08-24 -18 SVO
42 9.1 2453831 2006-04-05 2453848 2006-04-22 -17 SVO
43 9.4 2454077 2006-12-07 2454089 2006-12-19 -12 SVO
44 9.0 2454321 2007-08-08 2454330 2007-08-17 -9 SVO
45 9.1 2454555 2008-03-29 2454572 2008-04-15 -17 SVO
46 9.0 2454793 2008-11-22 2454813 2008-12-12 -20 SVO
47 9.0 2455028 2009-07-15 2455054 2009-08-10 -26 SVO
48 9.1 2455267 2010-03-11 2455295 2010-04-08 -28 SVO
49 9.4 2455515 2010-11-14 2455536 2010-12-05 -21 SVO
50 9.3 2455761 2011-07-18 2455778 2011-08-04 -17 SVO
51 9.2 2455991 2012-03-04 2456019 2012-04-01 -28 SVO
52 9.5 2456225 2012-10-24 2456260 2012-11-28 -35 SVO
53 9.3 2456455 2013-06-11 2456501 2013-07-27 -46 SVO
54 9.3 2456687 2014-01-29 2456742 2014-03-25 -55 AAVSO
55 9.0 2456925 2014-09-24 2456983 2014-11-21 -58 SVO
56 9.3 2457164 2015-05-21 2457225 2015-07-21 -61 SVO
57 9.5 2457401 2016-01-13 2457466 2016-03-18 -65 SVO
58 9.2 2457650 2016-09-18 2457707 2016-11-14 -57 SVO
59 9.4 2457889 2017-05-15 2457948 2017-07-13 -59 SVO
60   2458120 2018-01-01 2458189 2018-03-11 -69 SVO
61 9.1 2458357 2018-08-26 2458430 2018-11-07 -73 SVO
62 9.2 2458596 2019-04-22 2458672 2019-07-07 -76 SVO
63 9.1 2458838 2019-12-20 2458913 2020-03-04 -75 SVO
64 9.1 2459074 2020-08-12 2459154 2020-10-31 -80 SVO
65 9.3 2459317 2021-04-12 2459395 2021-06-29 -78 SVO
66 9.4 2459553 2021-12-04 2459636 2022-02-25 -83 SVO
67 9.5 2459800 2022-08-08 2459877 2022-10-24 -77 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.