Maxima for X Hya
Period: 301.1, Epoch: 2441060
Back to main page  Mean light curve  Period diagram

E Mag O (JD) O (dat) C (JD) C (Dat) O-C Source
-101   2410660 1888-01-23 2410649 1888-01-12 11 SVO
-92   2413355 1895-06-10 2413359 1895-06-14 -4 AnHar, 1909, vol 55, p 95
-91   2413658 1896-04-08 2413660 1896-04-10 -2 AnHar, 1909, vol 55, p 95
-90   2413960 1897-02-04 2413961 1897-02-05 -1 SVO
-86   2415160 1900-05-20 2415165 1900-05-25 -5 SVO
-85   2415470 1901-03-26 2415467 1901-03-23 3 AnHar, 1952, vol 118
-84   2415770 1902-01-20 2415768 1902-01-18 2 AnHar, 1952, vol 118
-83   2416070 1902-11-16 2416069 1902-11-15 1 AnHar, 1952, vol 118
-80 8.9 2416995 1905-05-29 2416972 1905-05-06 23 AAVSO
-79   2417301 1906-03-31 2417273 1906-03-03 28 SVO
-78   2417615 1907-02-08 2417574 1906-12-29 41 SVO
-77   2417933 1907-12-23 2417875 1907-10-26 58 AAVSO
-76   2418201 1908-09-16 2418176 1908-08-22 25 AAVSO
-75   2418481 1909-06-23 2418478 1909-06-20 3 AAVSO
-74   2418820 1910-05-28 2418779 1910-04-17 41 SVO
-72   2419417 1912-01-15 2419381 1911-12-10 36 SVO
-71   2419703 1912-10-27 2419682 1912-10-06 21 AAVSO
-69   2420331 1914-07-17 2420284 1914-05-31 47 AAVSO
-68 9.0 2420632 1915-05-14 2420585 1915-03-28 47 AAVSO
-67 8.5 2420933 1916-03-10 2420886 1916-01-23 47 AAVSO
-66 8.8 2421223 1916-12-25 2421187 1916-11-19 36 AAVSO
-65 8.5 2421531 1917-10-29 2421489 1917-09-17 42 AAVSO
-64   2421811 1918-08-05 2421790 1918-07-15 21 AAVSO
-63   2422110 1919-05-31 2422091 1919-05-12 19 AAVSO
-62   2422425 1920-04-10 2422392 1920-03-08 33 AAVSO
-61 8.5 2422733 1921-02-12 2422693 1921-01-03 40 SVO
-60   2423034 1921-12-10 2422994 1921-10-31 40 AAVSO
-59   2423332 1922-10-04 2423295 1922-08-28 37 AAVSO
-58   2423611 1923-07-10 2423596 1923-06-25 15 AAVSO
-57 8.6 2423925 1924-05-19 2423897 1924-04-21 28 AAVSO
-56 8.7 2424233 1925-03-23 2424198 1925-02-16 35 SVO
-55 8.5 2424534 1926-01-18 2424500 1925-12-15 34 SVO
-54 8.0 2424835 1926-11-15 2424801 1926-10-12 34 AAVSO
-53   2425139 1927-09-15 2425102 1927-08-09 37 AAVSO
-52   2425452 1928-07-24 2425403 1928-06-05 49 AAVSO
-51 8.4 2425739 1929-05-07 2425704 1929-04-02 35 AAVSO
-50 8.6 2426057 1930-03-21 2426005 1930-01-28 52 SVO
-49 8.2 2426352 1931-01-10 2426306 1930-11-25 46 SVO
-48 8.1 2426653 1931-11-07 2426607 1931-09-22 46 AAVSO
-47   2426968 1932-09-17 2426908 1932-07-19 60 AAVSO
-46   2427283 1933-07-29 2427209 1933-05-16 74 AAVSO
-45 8.2 2427579 1934-05-21 2427511 1934-03-14 68 AAVSO
-44 8.5 2427886 1935-03-24 2427812 1935-01-09 74 SVO
-43 8.6 2428194 1936-01-26 2428113 1935-11-06 81 SVO
-42 8.4 2428494 1936-11-21 2428414 1936-09-02 80 AAVSO
-41   2428800 1937-09-23 2428715 1937-06-30 85 AAVSO
-40   2429104 1938-07-24 2429016 1938-04-27 88 AAVSO
-39 8.3 2429404 1939-05-20 2429317 1939-02-22 87 AAVSO
-38 8.6 2429704 1940-03-15 2429618 1939-12-20 86 SVO
-37 8.2 2430005 1941-01-10 2429919 1940-10-16 86 AAVSO
-36 8.6 2430311 1941-11-12 2430220 1941-08-13 91 AAVSO
-35   2430611 1942-09-08 2430522 1942-06-11 89 AAVSO
-34   2430913 1943-07-07 2430823 1943-04-08 90 AAVSO
-33 8.5 2431217 1944-05-06 2431124 1944-02-03 93 AAVSO
-32 8.4 2431514 1945-02-27 2431425 1944-11-30 89 SVO
-31 8.4 2431815 1945-12-25 2431726 1945-09-27 89 AAVSO
-30   2432123 1946-10-29 2432027 1946-07-25 96 AAVSO
-29   2432427 1947-08-29 2432328 1947-05-22 99 AAVSO
-28 8.5 2432720 1948-06-17 2432629 1948-03-18 91 AAVSO
-27 8.5 2433023 1949-04-16 2432930 1949-01-13 93 AAVSO
-26 8.3 2433326 1950-02-13 2433231 1949-11-10 95 SVO
-25 8.7 2433636 1950-12-20 2433533 1950-09-08 103 AAVSO
-24   2433940 1951-10-20 2433834 1951-07-06 106 AAVSO
-23   2434224 1952-07-30 2434135 1952-05-02 89 AAVSO
-22 8.6 2434528 1953-05-30 2434436 1953-02-27 92 AAVSO
-21 8.8 2434831 1954-03-29 2434737 1953-12-25 94 SVO
-20 8.5 2435133 1955-01-25 2435038 1954-10-22 95 AAVSO
-19   2435421 1955-11-09 2435339 1955-08-19 82 AAVSO
-18   2435714 1956-08-28 2435640 1956-06-15 74 AAVSO
-17   2436019 1957-06-29 2435941 1957-04-12 78 AAVSO
-16 8.6 2436322 1958-04-28 2436242 1958-02-07 80 AAVSO
-15 8.7 2436621 1959-02-21 2436544 1958-12-06 77 SVO
-14 8.7 2436910 1959-12-07 2436845 1959-10-03 65 AAVSO
-13   2437194 1960-09-16 2437146 1960-07-30 48 AAVSO
-12   2437491 1961-07-10 2437447 1961-05-27 44 AAVSO
-11 9.1 2437795 1962-05-10 2437748 1962-03-24 47 AAVSO
-10 8.7 2438077 1963-02-16 2438049 1963-01-19 28 SVO
-9 8.2 2438382 1963-12-18 2438350 1963-11-16 32 AAVSO
-8   2438658 1964-09-19 2438651 1964-09-12 7 AAVSO
-7 8.5 2438950 1965-07-08 2438952 1965-07-10 -2 AAVSO
-6 8.4 2439253 1966-05-07 2439253 1966-05-07 0 AAVSO
-5 8.7 2439554 1967-03-04 2439555 1967-03-05 -1 SVO
-4 8.9 2439851 1967-12-26 2439856 1967-12-31 -5 SVO
-3 8.4 2440155 1968-10-25 2440157 1968-10-27 -2 AAVSO
-2   2440463 1969-08-29 2440458 1969-08-24 5 AAVSO
-1 9.2 2440743 1970-06-05 2440759 1970-06-21 -16 AAVSO
0 8.2 2441033 1971-03-22 2441060 1971-04-18 -27 SVO
1 8.9 2441345 1972-01-28 2441361 1972-02-13 -16 SVO
2 8.8 2441653 1972-12-01 2441662 1972-12-10 -9 AAVSO
3 8.9 2441960 1973-10-04 2441963 1973-10-07 -3 AAVSO
4   2442254 1974-07-25 2442264 1974-08-04 -10 AAVSO
5 9.1 2442536 1975-05-03 2442566 1975-06-02 -30 SVO
6 8.4 2442856 1976-03-18 2442867 1976-03-29 -11 SVO
7 8.6 2443146 1977-01-02 2443168 1977-01-24 -22 SVO
8 8.6 2443457 1977-11-09 2443469 1977-11-21 -12 SVO
9 9.5 2443754 1978-09-02 2443770 1978-09-18 -16 AAVSO
10 9.0 2444041 1979-06-16 2444071 1979-07-16 -30 AAVSO
11 9.1 2444343 1980-04-13 2444372 1980-05-12 -29 AAVSO
12 8.7 2444643 1981-02-07 2444673 1981-03-09 -30 SVO
13 8.6 2444938 1981-11-29 2444974 1982-01-04 -36 SVO
14 8.5 2445243 1982-09-30 2445275 1982-11-01 -32 AAVSO
15 9.0 2445549 1983-08-02 2445577 1983-08-30 -28 SVO
16 8.4 2445846 1984-05-25 2445878 1984-06-26 -32 SVO
17 8.8 2446153 1985-03-28 2446179 1985-04-23 -26 SVO
18 8.6 2446455 1986-01-24 2446480 1986-02-18 -25 SVO
19 8.9 2446763 1986-11-28 2446781 1986-12-16 -18 SVO
20 8.4 2447058 1987-09-19 2447082 1987-10-13 -24 SVO
21 9.3 2447365 1988-07-22 2447383 1988-08-09 -18 SVO
22 8.5 2447678 1989-05-31 2447684 1989-06-06 -6 SVO
23 8.8 2447977 1990-03-26 2447985 1990-04-03 -8 SVO
24 8.5 2448280 1991-01-23 2448286 1991-01-29 -6 SVO
25 8.2 2448579 1991-11-18 2448588 1991-11-27 -9 SVO
26   2448889 1992-09-23 2448889 1992-09-23 0 AAVSO
27 9.0 2449201 1993-08-01 2449190 1993-07-21 11 SVO
28 8.8 2449495 1994-05-22 2449491 1994-05-18 4 SVO
29 8.7 2449789 1995-03-12 2449792 1995-03-15 -3 SVO
30 8.3 2450096 1996-01-13 2450093 1996-01-10 3 SVO
31 8.6 2450401 1996-11-13 2450394 1996-11-06 7 SVO
32 9.0 2450707 1997-09-15 2450695 1997-09-03 12 SVO
33   2451010 1998-07-15 2450996 1998-07-01 14 AAVSO
34 8.3 2451314 1999-05-15 2451297 1999-04-28 17 SVO
35 9.2 2451609 2000-03-05 2451599 2000-02-24 10 SVO
36 8.4 2451905 2000-12-26 2451900 2000-12-21 5 SVO
37 8.7 2452205 2001-10-22 2452201 2001-10-18 4 SVO
38   2452505 2002-08-18 2452502 2002-08-15 3 AAVSO
39 8.6 2452815 2003-06-24 2452803 2003-06-12 12 SVO
40 8.4 2453106 2004-04-10 2453104 2004-04-08 2 SVO
41 8.6 2453408 2005-02-06 2453405 2005-02-03 3 SVO
42 8.4 2453702 2005-11-27 2453706 2005-12-01 -4 SVO
43   2453996 2006-09-17 2454007 2006-09-28 -11 AAVSO
44 8.5 2454303 2007-07-21 2454308 2007-07-26 -5 SVO
45 8.3 2454603 2008-05-16 2454610 2008-05-23 -7 SVO
46 8.8 2454895 2009-03-04 2454911 2009-03-20 -16 SVO
47 8.5 2455202 2010-01-05 2455212 2010-01-15 -10 SVO
48 8.5 2455503 2010-11-02 2455513 2010-11-12 -10 AAVSO
49   2455805 2011-08-31 2455814 2011-09-09 -9 AAVSO
50 8.6 2456115 2012-07-06 2456115 2012-07-06 0 AAVSO
51 8.5 2456415 2013-05-02 2456416 2013-05-03 -1 AAVSO
52 8.5 2456708 2014-02-19 2456717 2014-02-28 -9 SVO
53 8.3 2457000 2014-12-08 2457018 2014-12-26 -18 SVO
54 8.4 2457304 2015-10-08 2457319 2015-10-23 -15 SVO
54 8.4 2457304 2015-10-08 2457319 2015-10-23 -15 SVO
55 8.5 2457598 2016-07-28 2457621 2016-08-20 -23 SVO
56 8.7 2457906 2017-06-01 2457922 2017-06-17 -16 SVO
56 8.7 2457906 2017-06-01 2457922 2017-06-17 -16 SVO
57 8.8 2458197 2018-03-19 2458223 2018-04-14 -26 SVO
58 8.4 2458493 2019-01-09 2458524 2019-02-09 -31 SVO
59   2458790 2019-11-02 2458825 2019-12-07 -35 SVO
60 8.5 2459090 2020-08-28 2459126 2020-10-03 -36 SVO
60 8.5 2459090 2020-08-28 2459126 2020-10-03 -36 SVO
61 8.4 2459396 2021-06-30 2459427 2021-07-31 -31 SVO
61 8.4 2459396 2021-06-30 2459427 2021-07-31 -31 SVO
62 8.5 2459695 2022-04-25 2459728 2022-05-28 -33 SVO
62 8.3 2459698 2022-04-28 2459728 2022-05-28 -30 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.