Maxima for X Aql
Period: 347.67, Epoch: 2454937
Back to main page  Mean light curve  Period diagram

E Mag O (JD) O (dat) C (JD) C (Dat) O-C Source
-125   2411626 1890-09-15 2411478 1890-04-20 148 AnHar, 1909, vol 55, p 95
-122   2412688 1893-08-12 2412521 1893-02-26 167 GuL, 1920, 1.2
-121   2413040 1894-07-30 2412869 1894-02-09 171 AnHar, 1909, vol 55, p 95
-120   2413381 1895-07-06 2413217 1895-01-23 164 AnHar, 1909, vol 55, p 95
-119   2413743 1896-07-02 2413564 1896-01-05 179 AnHar, 1909, vol 55, p 95
-118   2414077 1897-06-01 2413912 1896-12-18 165 AnHar, 1909, vol 55, p 95
-117   2414438 1898-05-28 2414260 1897-12-01 178 AnHar, 1909, vol 55, p 95
-116   2414789 1899-05-14 2414607 1898-11-13 182 AnHar, 1909, vol 55, p 95
-115   2415126 1900-04-16 2414955 1899-10-27 171 AnHar, 1909, vol 55, p 95
-113   2415817 1902-03-08 2415650 1901-09-22 167 AnHar, 1909, vol 55, p 95
-111   2416518 1904-02-07 2416346 1903-08-19 172 AAVSO
-109 8.6 2417198 1905-12-18 2417041 1905-07-14 157 AAVSO
-108   2417557 1906-12-12 2417389 1906-06-27 168 AAVSO
-107   2417893 1907-11-13 2417736 1907-06-09 157 AAVSO
-106 8.8 2418235 1908-10-20 2418084 1908-05-22 151 AAVSO
-105 9.6 2418589 1909-10-09 2418432 1909-05-05 157 AAVSO
-104 8.9 2418921 1910-09-06 2418779 1910-04-17 142 AAVSO
-103 9.0 2419277 1911-08-28 2419127 1911-03-31 150 AAVSO
-102   2419627 1912-08-12 2419475 1912-03-13 152 SVO
-101   2419977 1913-07-28 2419822 1913-02-23 155 SVO
-100 8.3 2420310 1914-06-26 2420170 1914-02-06 140 SVO
-99   2420662 1915-06-13 2420518 1915-01-20 144 AAVSO
-98 9.0 2421011 1916-05-27 2420865 1916-01-02 146 SVO
-97 9.0 2421356 1917-05-07 2421213 1916-12-15 143 AAVSO
-96 8.6 2421704 1918-04-20 2421561 1917-11-28 143 AAVSO
-95 8.7 2422053 1919-04-04 2421908 1918-11-10 145 AAVSO
-94 8.5 2422404 1920-03-20 2422256 1919-10-24 148 AAVSO
-93   2422749 1921-02-28 2422604 1920-10-06 145 AAVSO
-92 9.8 2423107 1922-02-21 2422951 1921-09-18 156 AAVSO
-91 8.8 2423468 1923-02-17 2423299 1922-09-01 169 SVO
-90 8.9 2423810 1924-01-25 2423647 1923-08-15 163 SVO
-89 9.2 2424167 1925-01-16 2423994 1924-07-27 173 SVO
-88 9.5 2424527 1926-01-11 2424342 1925-07-10 185 SVO
-87 8.9 2424867 1926-12-17 2424690 1926-06-23 177 SVO
-86 10.3 2425227 1927-12-12 2425037 1927-06-05 190 AAVSO
-85 8.7 2425573 1928-11-22 2425385 1928-05-18 188 AAVSO
-84 9.8 2425915 1929-10-30 2425733 1929-05-01 182 SVO
-83 8.6 2426258 1930-10-08 2426080 1930-04-13 178 SVO
-82 8.8 2426610 1931-09-25 2426428 1931-03-27 182 SVO
-81 9.0 2426954 1932-09-03 2426776 1932-03-09 178 SVO
-80 8.8 2427284 1933-07-30 2427123 1933-02-19 161 SVO
-79 8.7 2427626 1934-07-07 2427471 1934-02-02 155 SVO
-78 9.0 2427983 1935-06-29 2427819 1935-01-16 164 SVO
-77 9.8 2428329 1936-06-09 2428166 1935-12-29 163 SVO
-76 8.4 2428663 1937-05-09 2428514 1936-12-11 149 AAVSO
-75 9.6 2429007 1938-04-18 2428862 1937-11-24 145 AAVSO
-74 9.1 2429354 1939-03-31 2429209 1938-11-06 145 SVO
-73   2429694 1940-03-05 2429557 1939-10-20 137 AAVSO
-72   2430047 1941-02-21 2429905 1940-10-02 142 AAVSO
-71   2430392 1942-02-01 2430252 1941-09-14 140 AAVSO
-70   2430719 1942-12-25 2430600 1942-08-28 119 AAVSO
-69 8.8 2431071 1943-12-12 2430948 1943-08-11 123 AAVSO
-68 8.6 2431419 1944-11-24 2431295 1944-07-23 124 AAVSO
-67 9.2 2431777 1945-11-17 2431643 1945-07-06 134 SVO
-66 8.8 2432126 1946-11-01 2431991 1946-06-19 135 SVO
-65 8.9 2432470 1947-10-11 2432338 1947-06-01 132 SVO
-64 8.6 2432816 1948-09-21 2432686 1948-05-14 130 SVO
-63 9.0 2433170 1949-09-10 2433034 1949-04-27 136 SVO
-62 8.6 2433517 1950-08-23 2433381 1950-04-09 136 SVO
-61 10.2 2433878 1951-08-19 2433729 1951-03-23 149 SVO
-60 9.3 2434229 1952-08-04 2434077 1952-03-05 152 SVO
-59 9.2 2434570 1953-07-11 2434424 1953-02-15 146 SVO
-58 8.8 2434917 1954-06-23 2434772 1954-01-29 145 AAVSO
-57 8.8 2435263 1955-06-04 2435120 1955-01-12 143 AAVSO
-56 8.4 2435607 1956-05-13 2435467 1955-12-25 140 AAVSO
-55 9.6 2435962 1957-05-03 2435815 1956-12-07 147 AAVSO
-54 8.5 2436308 1958-04-14 2436163 1957-11-20 145 AAVSO
-53   2436644 1959-03-16 2436510 1958-11-02 134 AAVSO
-52   2436995 1960-03-01 2436858 1959-10-16 137 AAVSO
-51   2437345 1961-02-14 2437206 1960-09-28 139 AAVSO
-50   2437694 1962-01-29 2437554 1961-09-11 140 AAVSO
-49 9.5 2438041 1963-01-11 2437901 1962-08-24 140 AAVSO
-48 9.4 2438398 1964-01-03 2438249 1963-08-07 149 AAVSO
-47 8.7 2438729 1964-11-29 2438597 1964-07-20 132 SVO
-46 9.1 2439079 1965-11-14 2438944 1965-07-02 135 SVO
-45 8.7 2439422 1966-10-23 2439292 1966-06-15 130 SVO
-44 10.0 2439773 1967-10-09 2439640 1967-05-29 133 SVO
-43 9.2 2440118 1968-09-18 2439987 1968-05-10 131 SVO
-42 8.9 2440451 1969-08-17 2440335 1969-04-23 116 SVO
-41 9.0 2440797 1970-07-29 2440683 1970-04-06 114 SVO
-40 8.8 2441142 1971-07-09 2441030 1971-03-19 112 SVO
-39 9.2 2441494 1972-06-25 2441378 1972-03-01 116 SVO
-38 9.0 2441842 1973-06-08 2441726 1973-02-12 116 AAVSO
-37 8.4 2442178 1974-05-10 2442073 1974-01-25 105 AAVSO
-36 9.4 2442528 1975-04-25 2442421 1975-01-08 107 AAVSO
-35 9.4 2442871 1976-04-02 2442769 1975-12-22 102 AAVSO
-34 8.6 2443219 1977-03-16 2443116 1976-12-03 103 AAVSO
-33 9.1 2443557 1978-02-17 2443464 1977-11-16 93 AAVSO
-32 8.5 2443893 1979-01-19 2443812 1978-10-30 81 SVO
-31 9.8 2444255 1980-01-16 2444159 1979-10-12 96 SVO
-30 8.5 2444604 1980-12-30 2444507 1980-09-24 97 SVO
-29 9.6 2444965 1981-12-26 2444855 1981-09-07 110 SVO
-28 8.7 2445317 1982-12-13 2445202 1982-08-20 115 SVO
-27 9.1 2445662 1983-11-23 2445550 1983-08-03 112 SVO
-26 8.9 2446016 1984-11-11 2445898 1984-07-16 118 SVO
-25 8.4 2446360 1985-10-21 2446245 1985-06-28 115 SVO
-24 10.2 2446708 1986-10-04 2446593 1986-06-11 115 SVO
-23 8.7 2447044 1987-09-05 2446941 1987-05-25 103 SVO
-22 9.8 2447399 1988-08-25 2447288 1988-05-06 111 SVO
-21 8.4 2447737 1989-07-29 2447636 1989-04-19 101 SVO
-20 10.2 2448076 1990-07-03 2447984 1990-04-02 92 SVO
-19 9.3 2448411 1991-06-03 2448331 1991-03-15 80 SVO
-18 9.7 2448745 1992-05-02 2448679 1992-02-26 66 SVO
-17 9.0 2449081 1993-04-03 2449027 1993-02-08 54 SVO
-16 8.8 2449422 1994-03-10 2449374 1994-01-21 48 SVO
-15 9.2 2449757 1995-02-08 2449722 1995-01-04 35 SVO
-14 9.3 2450103 1996-01-20 2450070 1995-12-18 33 SVO
-13 9.2 2450449 1996-12-31 2450417 1996-11-29 32 SVO
-12 9.0 2450784 1997-12-01 2450765 1997-11-12 19 SVO
-11 9.8 2451127 1998-11-09 2451113 1998-10-26 14 SVO
-10 8.5 2451465 1999-10-13 2451460 1999-10-08 5 SVO
-9 9.3 2451807 2000-09-19 2451808 2000-09-20 -1 SVO
-8 9.0 2452157 2001-09-04 2452156 2001-09-03 1 SVO
-7 8.8 2452504 2002-08-17 2452503 2002-08-16 1 SVO
-6 8.7 2452846 2003-07-25 2452851 2003-07-30 -5 SVO
-5 9.5 2453201 2004-07-14 2453199 2004-07-12 2 SVO
-4 9.0 2453552 2005-06-30 2453546 2005-06-24 6 SVO
-3 9.6 2453895 2006-06-08 2453894 2006-06-07 1 SVO
-2 8.8 2454248 2007-05-27 2454242 2007-05-21 6 SVO
-1 9.5 2454597 2008-05-10 2454589 2008-05-02 8 SVO
0 8.9 2454939 2009-04-17 2454937 2009-04-15 2 SVO
1 8.9 2455283 2010-03-27 2455285 2010-03-29 -2 SVO
2 9.5 2455636 2011-03-15 2455632 2011-03-11 4 SVO
3 9.1 2455985 2012-02-27 2455980 2012-02-22 5 SVO
4 9.3 2456334 2013-02-10 2456328 2013-02-04 6 SVO
5 9.1 2456681 2014-01-23 2456675 2014-01-17 6 SVO
6 9.1 2457031 2015-01-08 2457023 2014-12-31 8 SVO
7 8.5 2457366 2015-12-09 2457371 2015-12-14 -5 SVO
8 8.7 2457714 2016-11-21 2457718 2016-11-25 -4 SVO
9 9.3 2458074 2017-11-16 2458066 2017-11-08 8 SVO
10 9.8 2458425 2018-11-02 2458414 2018-10-22 11 SVO
11 8.3 2458765 2019-10-08 2458761 2019-10-04 4 SVO
12 9.4 2459110 2020-09-17 2459109 2020-09-16 1 SVO
13 9.0 2459468 2021-09-10 2459457 2021-08-30 11 SVO
14 9.1 2459815 2022-08-23 2459804 2022-08-12 11 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.