Maxima for T Oph
Period: 366.82, Epoch: 2441874
Back to main page  Mean light curve  Period diagram

E Mag O (JD) O (dat) C (JD) C (Dat) O-C Source
-109   2401912 1864-02-10 2401891 1864-01-20 21 AnHar, 1909, vol 55, p 95
-108   2402272 1865-02-04 2402257 1865-01-20 15 AnHar, 1909, vol 55, p 95
-104   2403724 1869-01-26 2403725 1869-01-27 -1 AnHar, 1909, vol 55, p 95
-103   2404094 1870-01-31 2404092 1870-01-29 2 AnHar, 1909, vol 55, p 95
-99   2405561 1874-02-06 2405559 1874-02-04 2 AnHar, 1909, vol 55, p 95
-95   2407012 1878-01-27 2407026 1878-02-10 -14 AnHar, 1909, vol 55, p 95
-80   2412548 1893-03-25 2412528 1893-03-05 20 GuL, 1920, 1.2
-76   2414013 1897-03-29 2413996 1897-03-12 17 SVO
-75   2414370 1898-03-21 2414363 1898-03-14 7 SVO
-69   2416580 1904-04-09 2416563 1904-03-23 17 SVO
-68 10.2 2416910 1905-03-05 2416930 1905-03-25 -20 AAVSO
-67 10.4 2417316 1906-04-15 2417297 1906-03-27 19 AAVSO
-66   2417660 1907-03-25 2417664 1907-03-29 -4 SVO
-65 9.0 2418030 1908-03-29 2418031 1908-03-30 -1 AAVSO
-64 10.0 2418390 1909-03-24 2418398 1909-04-01 -8 AAVSO
-63 9.8 2418750 1910-03-19 2418764 1910-04-02 -14 AAVSO
-62   2419140 1911-04-13 2419131 1911-04-04 9 AAVSO
-61   2419504 1912-04-11 2419498 1912-04-05 6 AAVSO
-60   2419870 1913-04-12 2419865 1913-04-07 5 AAVSO
-58   2420577 1915-03-20 2420598 1915-04-10 -21 AAVSO
-57 8.8 2420960 1916-04-06 2420965 1916-04-11 -5 AAVSO
-55   2421685 1918-04-01 2421699 1918-04-15 -14 SVO
-53   2422422 1920-04-07 2422433 1920-04-18 -11 AAVSO
-52 9.7 2422800 1921-04-20 2422799 1921-04-19 1 AAVSO
-51 9.8 2423153 1922-04-08 2423166 1922-04-21 -13 AAVSO
-50 10.4 2423517 1923-04-07 2423533 1923-04-23 -16 SVO
-49 9.6 2423880 1924-04-04 2423900 1924-04-24 -20 SVO
-48 9.5 2424247 1925-04-06 2424267 1925-04-26 -20 SVO
-47 9.9 2424620 1926-04-14 2424633 1926-04-27 -13 SVO
-46 9.1 2424985 1927-04-14 2425000 1927-04-29 -15 AAVSO
-45 10.5 2425350 1928-04-13 2425367 1928-04-30 -17 SVO
-44 9.8 2425713 1929-04-11 2425734 1929-05-02 -21 SVO
-43 10.0 2426076 1930-04-09 2426101 1930-05-04 -25 SVO
-42 9.1 2426440 1931-04-08 2426468 1931-05-06 -28 SVO
-41 10.1 2426808 1932-04-10 2426834 1932-05-06 -26 SVO
-40 9.2 2427178 1933-04-15 2427201 1933-05-08 -23 SVO
-39 10.4 2427539 1934-04-11 2427568 1934-05-10 -29 AAVSO
-38 9.2 2427910 1935-04-17 2427935 1935-05-12 -25 AAVSO
-37 10.9 2428290 1936-05-01 2428302 1936-05-13 -12 AAVSO
-36 9.7 2428664 1937-05-10 2428668 1937-05-14 -4 SVO
-35 10.2 2429027 1938-05-08 2429035 1938-05-16 -8 AAVSO
-34 9.6 2429411 1939-05-27 2429402 1939-05-18 9 AAVSO
-33 9.1 2429773 1940-05-23 2429769 1940-05-19 4 SVO
-32 10.6 2430128 1941-05-13 2430136 1941-05-21 -8 AAVSO
-31 10.0 2430504 1942-05-24 2430503 1942-05-23 1 AAVSO
-30 10.6 2430868 1943-05-23 2430869 1943-05-24 -1 AAVSO
-29 9.7 2431249 1944-06-07 2431236 1944-05-25 13 SVO
-28 9.6 2431610 1945-06-03 2431603 1945-05-27 7 AAVSO
-27 9.7 2431975 1946-06-03 2431970 1946-05-29 5 AAVSO
-26 10.0 2432350 1947-06-13 2432337 1947-05-31 13 AAVSO
-25 9.5 2432722 1948-06-19 2432704 1948-06-01 18 SVO
-24 10.3 2433082 1949-06-14 2433070 1949-06-02 12 SVO
-23 9.9 2433447 1950-06-14 2433437 1950-06-04 10 SVO
-22 10.2 2433813 1951-06-15 2433804 1951-06-06 9 SVO
-21 10.1 2434188 1952-06-24 2434171 1952-06-07 17 SVO
-20 10.1 2434555 1953-06-26 2434538 1953-06-09 17 SVO
-19 9.4 2434919 1954-06-25 2434904 1954-06-10 15 SVO
-18 10.0 2435285 1955-06-26 2435271 1955-06-12 14 SVO
-17 10.3 2435653 1956-06-28 2435638 1956-06-13 15 SVO
-16 9.3 2436021 1957-07-01 2436005 1957-06-15 16 SVO
-15 11.0 2436385 1958-06-30 2436372 1958-06-17 13 SVO
-14 10.0 2436749 1959-06-29 2436739 1959-06-19 10 SVO
-13 10.0 2437116 1960-06-30 2437105 1960-06-19 11 SVO
-12 9.9 2437475 1961-06-24 2437472 1961-06-21 3 SVO
-11 10.1 2437835 1962-06-19 2437839 1962-06-23 -4 SVO
-10 9.7 2438201 1963-06-20 2438206 1963-06-25 -5 SVO
-9 9.5 2438553 1964-06-06 2438573 1964-06-26 -20 SVO
-8 9.8 2438923 1965-06-11 2438939 1965-06-27 -16 SVO
-7 9.6 2439292 1966-06-15 2439306 1966-06-29 -14 SVO
-6 9.9 2439661 1967-06-19 2439673 1967-07-01 -12 SVO
-5 9.7 2440036 1968-06-28 2440040 1968-07-02 -4 SVO
-4 10.4 2440400 1969-06-27 2440407 1969-07-04 -7 SVO
-3 9.7 2440769 1970-07-01 2440774 1970-07-06 -5 AAVSO
-2 10.0 2441145 1971-07-12 2441140 1971-07-07 5 AAVSO
-1 9.3 2441510 1972-07-11 2441507 1972-07-08 3 SVO
0 10.4 2441880 1973-07-16 2441874 1973-07-10 6 SVO
1 10.1 2442263 1974-08-03 2442241 1974-07-12 22 SVO
2 10.3 2442631 1975-08-06 2442608 1975-07-14 23 SVO
3 9.5 2442995 1976-08-04 2442974 1976-07-14 21 SVO
4 10.3 2443376 1977-08-20 2443341 1977-07-16 35 SVO
5 10.5 2443737 1978-08-16 2443708 1978-07-18 29 AAVSO
6 9.0 2444107 1979-08-21 2444075 1979-07-20 32 SVO
7 11.0 2444480 1980-08-28 2444442 1980-07-21 38 SVO
8 10.4 2444851 1981-09-03 2444809 1981-07-23 42 SVO
9 9.8 2445214 1982-09-01 2445175 1982-07-24 39 SVO
10 9.9 2445585 1983-09-07 2445542 1983-07-26 43 AAVSO
11 9.3 2445949 1984-09-05 2445909 1984-07-27 40 SVO
12 10.0 2446314 1985-09-05 2446276 1985-07-29 38 SVO
13 10.0 2446678 1986-09-04 2446643 1986-07-31 35 SVO
14 9.9 2447039 1987-08-31 2447009 1987-08-01 30 SVO
15 9.5 2447402 1988-08-28 2447376 1988-08-02 26 SVO
16 10.9 2447759 1989-08-20 2447743 1989-08-04 16 SVO
17 10.0 2448119 1990-08-15 2448110 1990-08-06 9 SVO
18 10.4 2448481 1991-08-12 2448477 1991-08-08 4 SVO
19 9.4 2448840 1992-08-05 2448844 1992-08-09 -4 SVO
20 10.3 2449200 1993-07-31 2449210 1993-08-10 -10 SVO
21 9.3 2449557 1994-07-23 2449577 1994-08-12 -20 SVO
22 10.5 2449913 1995-07-14 2449944 1995-08-14 -31 SVO
23 9.9 2450283 1996-07-18 2450311 1996-08-15 -28 SVO
24 10.0 2450644 1997-07-14 2450678 1997-08-17 -34 SVO
25 9.9 2451004 1998-07-09 2451045 1998-08-19 -41 SVO
26 10.7 2451369 1999-07-09 2451411 1999-08-20 -42 SVO
27 9.9 2451738 2000-07-12 2451778 2000-08-21 -40 SVO
28 10.1 2452109 2001-07-18 2452145 2001-08-23 -36 SVO
29 10.3 2452474 2002-07-18 2452512 2002-08-25 -38 SVO
30 9.3 2452829 2003-07-08 2452879 2003-08-27 -50 SVO
31 10.4 2453200 2004-07-13 2453245 2004-08-27 -45 SVO
32 10.0 2453565 2005-07-13 2453612 2005-08-29 -47 SVO
33 9.9 2453929 2006-07-12 2453979 2006-08-31 -50 SVO
34 10.5 2454302 2007-07-20 2454346 2007-09-02 -44 SVO
35 9.9 2454662 2008-07-14 2454713 2008-09-03 -51 SVO
36 10.4 2455028 2009-07-15 2455080 2009-09-05 -52 SVO
37 9.8 2455397 2010-07-19 2455446 2010-09-06 -49 SVO
38 10.8 2455773 2011-07-30 2455813 2011-09-08 -40 SVO
39 10.0 2456134 2012-07-25 2456180 2012-09-09 -46 SVO
40 10.5 2456502 2013-07-28 2456547 2013-09-11 -45 SVO
41 10.0 2456879 2014-08-09 2456914 2014-09-13 -35 SVO
42 9.5 2457245 2015-08-10 2457280 2015-09-14 -35 SVO
43 10.0 2457626 2016-08-25 2457647 2016-09-15 -21 SVO
44 10.0 2457997 2017-08-31 2458014 2017-09-17 -17 SVO
45 9.7 2458369 2018-09-07 2458381 2018-09-19 -12 SVO
46 9.7 2458734 2019-09-07 2458748 2019-09-21 -14 SVO
47 10.0 2459115 2020-09-22 2459115 2020-09-22 0 SVO
48 9.8 2459470 2021-09-12 2459481 2021-09-23 -11 SVO
49 9.7 2459836 2022-09-13 2459848 2022-09-25 -12 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.