Maxima for X Aqr
Period: 311.61, Epoch: 2452948.3
AAVSO offset: 2

E Mag O (JD) O (dat) C (JD) C (Dat) O-C Source
-124   2414283 1897-12-24 2414309 1898-01-19 -26 AnHar, 1909, vol 55, p 95
-123   2414639 1898-12-15 2414621 1898-11-27 18 AnHar, 1909, vol 55, p 95
-122   2414941 1899-10-13 2414932 1899-10-04 9 GuL, 1920, 1.2, AnHar, 1909, vol 55, p 95
-121   2415249 1900-08-17 2415244 1900-08-12 5 GuL, 1920, 1.2, AnHar, 1952, vol 115
-120   2415580 1901-07-14 2415556 1901-06-20 24 AnHar, 1952, vol 115
-119   2415890 1902-05-20 2415867 1902-04-27 23 AnHar, 1952, vol 115
-116 7.7 2416819 1904-12-04 2416802 1904-11-17 17 AAVSO
-115   2417164 1905-11-14 2417114 1905-09-25 50 AAVSO
-114 8.0 2417484 1906-09-30 2417425 1906-08-02 59 AAVSO
-113   2417796 1907-08-08 2417737 1907-06-10 59 AAVSO
-112   2418112 1908-06-19 2418048 1908-04-16 64 AAVSO
-111   2418422 1909-04-25 2418360 1909-02-22 62 AAVSO
-110   2418740 1910-03-09 2418672 1909-12-31 68 AAVSO
-109   2419030 1910-12-24 2418983 1910-11-07 47 AAVSO
-108   2419310 1911-09-30 2419295 1911-09-15 15 AnHar, 1952, vol 115
-107   2419600 1912-07-16 2419606 1912-07-22 -6 AnHar, 1952, vol 115
-106   2419942 1913-06-23 2419918 1913-05-30 24 AAVSO
-103   2420842 1915-12-10 2420853 1915-12-21 -11 AAVSO
-102 7.9 2421149 1916-10-12 2421164 1916-10-27 -15 AAVSO
-101 8.4 2421456 1917-08-15 2421476 1917-09-04 -20 AAVSO
-100 8.9 2421774 1918-06-29 2421788 1918-07-13 -14 AAVSO
-98   2422371 1920-02-16 2422411 1920-03-27 -40 AAVSO
-97 8.7 2422686 1920-12-27 2422723 1921-02-02 -37 AAVSO
-95 7.7 2423295 1922-08-28 2423346 1922-10-18 -51 AAVSO
-94   2423605 1923-07-04 2423657 1923-08-25 -52 AAVSO
-89 8.2 2425180 1927-10-26 2425215 1927-11-30 -35 AAVSO
-88 7.9 2425484 1928-08-25 2425527 1928-10-07 -43 AAVSO
-87   2425810 1929-07-17 2425839 1929-08-15 -29 AAVSO
-86   2426130 1930-06-02 2426150 1930-06-22 -20 AnHar, 1952, vol 115
-82 8.6 2427378 1933-11-01 2427397 1933-11-20 -19 SVO
-81 8.8 2427692 1934-09-11 2427708 1934-09-27 -16 SVO
-80 8.8 2428000 1935-07-16 2428020 1935-08-05 -20 AAVSO
-79 7.8 2428303 1936-05-14 2428331 1936-06-11 -28 AAVSO
-78   2428614 1937-03-21 2428643 1937-04-19 -29 AAVSO
-77   2428930 1938-01-31 2428955 1938-02-25 -25 AAVSO
-76 8.2 2429249 1938-12-16 2429266 1939-01-02 -17 AAVSO
-75 7.8 2429549 1939-10-12 2429578 1939-11-10 -29 SVO
-74 7.9 2429862 1940-08-20 2429889 1940-09-16 -27 SVO
-73 8.0 2430181 1941-07-05 2430201 1941-07-25 -20 AAVSO
-72 8.9 2430483 1942-05-03 2430513 1942-06-02 -30 AAVSO
-71   2430788 1943-03-04 2430824 1943-04-09 -36 AAVSO
-70   2431116 1944-01-26 2431136 1944-02-15 -20 AAVSO
-69 8.6 2431441 1944-12-16 2431447 1944-12-22 -6 AAVSO
-68 7.5 2431749 1945-10-20 2431759 1945-10-30 -10 AAVSO
-67 9.0 2432069 1946-09-05 2432071 1946-09-07 -2 SVO
-66 8.8 2432383 1947-07-16 2432382 1947-07-15 1 SVO
-65 7.7 2432687 1948-05-15 2432694 1948-05-22 -7 SVO
-64 8.8 2432997 1949-03-21 2433006 1949-03-30 -9 AAVSO
-63 8.1 2433307 1950-01-25 2433317 1950-02-04 -10 SVO
-62 8.0 2433626 1950-12-10 2433629 1950-12-13 -3 AAVSO
-61 7.9 2433927 1951-10-07 2433940 1951-10-20 -13 SVO
-60 8.6 2434241 1952-08-16 2434252 1952-08-27 -11 SVO
-59 8.4 2434559 1953-06-30 2434564 1953-07-05 -5 SVO
-58 8.0 2434867 1954-05-04 2434875 1954-05-12 -8 AAVSO
-57 8.1 2435181 1955-03-14 2435187 1955-03-20 -6 AAVSO
-56 8.0 2435493 1956-01-20 2435498 1956-01-25 -5 SVO
-55 8.7 2435804 1956-11-26 2435810 1956-12-02 -6 AAVSO
-54 7.7 2436102 1957-09-20 2436122 1957-10-10 -20 SVO
-53 8.4 2436424 1958-08-08 2436433 1958-08-17 -9 SVO
-52 8.8 2436745 1959-06-25 2436745 1959-06-25 0 SVO
-51 9.6 2437052 1960-04-27 2437056 1960-05-01 -4 AAVSO
-50 8.0 2437362 1961-03-03 2437368 1961-03-09 -6 AAVSO
-49 8.8 2437690 1962-01-25 2437680 1962-01-15 10 AAVSO
-48 8.5 2437985 1962-11-16 2437991 1962-11-22 -6 SVO
-47 9.3 2438299 1963-09-26 2438303 1963-09-30 -4 SVO
-46 8.6 2438612 1964-08-04 2438614 1964-08-06 -2 SVO
-45 8.6 2438928 1965-06-16 2438926 1965-06-14 2 SVO
-44 7.8 2439234 1966-04-18 2439238 1966-04-22 -4 AAVSO
-43   2439536 1967-02-14 2439549 1967-02-27 -13 AAVSO
-42   2439845 1967-12-20 2439861 1968-01-05 -16 AAVSO
-41 8.9 2440175 1968-11-14 2440172 1968-11-11 3 SVO
-40 8.3 2440499 1969-10-04 2440484 1969-09-19 15 SVO
-39 8.4 2440802 1970-08-03 2440796 1970-07-28 6 AAVSO
-38 8.6 2441112 1971-06-09 2441107 1971-06-04 5 AAVSO
-37   2441423 1972-04-15 2441419 1972-04-11 4 AAVSO
-36   2441763 1973-03-21 2441731 1973-02-17 32 AAVSO
-35 7.7 2442072 1974-01-24 2442042 1973-12-25 30 AAVSO
-34 8.0 2442382 1974-11-30 2442354 1974-11-02 28 SVO
-33 8.7 2442699 1975-10-13 2442665 1975-09-09 34 SVO
-32 8.0 2443008 1976-08-17 2442977 1976-07-17 31 SVO
-31 9.6 2443316 1977-06-21 2443289 1977-05-25 27 AAVSO
-30 9.0 2443630 1978-05-01 2443600 1978-04-01 30 AAVSO
-29 9.5 2443919 1979-02-14 2443912 1979-02-07 7 AAVSO
-28 8.4 2444242 1980-01-03 2444223 1979-12-15 19 AAVSO
-27 8.3 2444548 1980-11-04 2444535 1980-10-22 13 SVO
-26 8.5 2444861 1981-09-13 2444847 1981-08-30 14 SVO
-25 8.6 2445165 1982-07-14 2445158 1982-07-07 7 SVO
-24 8.4 2445479 1983-05-24 2445470 1983-05-15 9 AAVSO
-23 7.8 2445783 1984-03-23 2445781 1984-03-21 2 AAVSO
-22 9.4 2446095 1985-01-29 2446093 1985-01-27 2 AAVSO
-21 8.7 2446406 1985-12-06 2446405 1985-12-05 1 AAVSO
-20 8.1 2446711 1986-10-07 2446716 1986-10-12 -5 SVO
-19 8.3 2447021 1987-08-13 2447028 1987-08-20 -7 SVO
-18 8.3 2447332 1988-06-19 2447339 1988-06-26 -7 SVO
-17   2447648 1989-05-01 2447651 1989-05-04 -3 AAVSO
-16   2447961 1990-03-10 2447963 1990-03-12 -2 AAVSO
-15 8.6 2448276 1991-01-19 2448274 1991-01-17 2 SVO
-14   2448584 1991-11-23 2448586 1991-11-25 -2 AAVSO
-13 8.5 2448908 1992-10-12 2448897 1992-10-01 11 SVO
-12 8.2 2449215 1993-08-15 2449209 1993-08-09 6 SVO
-11 7.9 2449525 1994-06-21 2449521 1994-06-17 4 SVO
-10   2449825 1995-04-17 2449832 1995-04-24 -7 AAVSO
-9   2450147 1996-03-04 2450144 1996-03-01 3 AAVSO
-8   2450453 1997-01-04 2450455 1997-01-06 -2 AAVSO
-7 8.5 2450778 1997-11-25 2450767 1997-11-14 11 SVO
-6 9.1 2451084 1998-09-27 2451079 1998-09-22 5 SVO
-5 8.6 2451391 1999-07-31 2451390 1999-07-30 1 SVO
-4 8.1 2451707 2000-06-11 2451702 2000-06-06 5 SVO
-3   2452022 2001-04-22 2452014 2001-04-14 8 AAVSO
-2   2452322 2002-02-16 2452325 2002-02-19 -3 AAVSO
-1 8.7 2452648 2003-01-08 2452637 2002-12-28 11 SVO
0 7.6 2452951 2003-11-07 2452948 2003-11-04 3 SVO
1 9.3 2453263 2004-09-14 2453260 2004-09-11 3 SVO
2 8.2 2453571 2005-07-19 2453572 2005-07-20 -1 SVO
3 8.5 2453892 2006-06-05 2453883 2006-05-27 9 SVO
4   2454198 2007-04-07 2454195 2007-04-04 3 AAVSO
5   2454510 2008-02-13 2454506 2008-02-09 4 AAVSO
6 8.4 2454816 2008-12-15 2454818 2008-12-17 -2 SVO
7 8.2 2455124 2009-10-19 2455130 2009-10-25 -6 SVO
8 8.3 2455443 2010-09-03 2455441 2010-09-01 2 SVO
9 8.3 2455754 2011-07-11 2455753 2011-07-10 1 SVO
10 8.5 2456066 2012-05-18 2456064 2012-05-16 2 AAVSO
11 8.5 2456375 2013-03-23 2456376 2013-03-24 -1 AAVSO
12 7.6 2456691 2014-02-02 2456688 2014-01-30 3 SVO
13 8.3 2456986 2014-11-24 2456999 2014-12-07 -13 SVO
14 8.3 2457308 2015-10-12 2457311 2015-10-15 -3 SVO
15 8.1 2457616 2016-08-15 2457622 2016-08-21 -6 SVO
16 8.8 2457931 2017-06-26 2457934 2017-06-29 -3 SVO
17   2458240 2018-05-01 2458246 2018-05-07 -6 SVO
18   2458560 2019-03-17 2458557 2019-03-14 3 SVO
19 8.7 2458867 2020-01-18 2458869 2020-01-20 -2 SVO
20 7.9 2459172 2020-11-18 2459180 2020-11-26 -8 SVO
21 8.6 2459487 2021-09-29 2459492 2021-10-04 -5 SVO
22 8.2 2459800 2022-08-08 2459804 2022-08-12 -4 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.