Maxima for TU Cyg
Period: 219.44, Epoch: 2444765
Back to main page  Mean light curve  Period diagram

E Mag O (JD) O (dat) C (JD) C (Dat) O-C Source
-152   2411440 1890-03-13 2411410 1890-02-11 30 AnHar, 1937, vol 105, p 459
-151   2411630 1890-09-19 2411630 1890-09-19 0 AnHar, 1909, vol 55, p 95
-149   2412070 1891-12-03 2412068 1891-12-01 2 SVO
-148   2412280 1892-06-30 2412288 1892-07-08 -8 GuL, 1920, 1.2
-145   2412950 1894-05-01 2412946 1894-04-27 4 SVO
-143   2413385 1895-07-10 2413385 1895-07-10 0 SVO
-142   2413615 1896-02-25 2413605 1896-02-15 10 SVO
-141   2413824 1896-09-21 2413824 1896-09-21 0 GuL, 1920, 1.2, AnHar, 1909, vol 55, p 95
-140   2414045 1897-04-30 2414043 1897-04-28 2 SVO
-139   2414272 1897-12-13 2414263 1897-12-04 9 AnHar, 1909, vol 55, p 95
-136   2414930 1899-10-02 2414921 1899-09-23 9 SVO
-135   2415145 1900-05-05 2415141 1900-05-01 4 GuL, 1920, 1.2, AnHar, 1909, vol 55, p 95
-134   2415363 1900-12-09 2415360 1900-12-06 3 AnHar, 1909, vol 55, p 95
-133   2415583 1901-07-17 2415579 1901-07-13 4 AnHar, 1909, vol 55, p 95
-132   2415793 1902-02-12 2415799 1902-02-18 -6 AnHar, 1909, vol 55, p 95
-131   2416015 1902-09-22 2416018 1902-09-25 -3 AnHar, 1909, vol 55, p 95
-130   2416223 1903-04-18 2416238 1903-05-03 -15 AnHar, 1909, vol 55, p 95
-129   2416437 1903-11-18 2416457 1903-12-08 -20 SVO
-128   2416645 1904-06-13 2416677 1904-07-15 -32 SVO
-127   2416859 1905-01-13 2416896 1905-02-19 -37 AAVSO
-126   2417085 1905-08-27 2417116 1905-09-27 -31 SVO
-125   2417303 1906-04-02 2417335 1906-05-04 -32 AAVSO
-124   2417526 1906-11-11 2417554 1906-12-09 -28 AAVSO
-123   2417739 1907-06-12 2417774 1907-07-17 -35 AAVSO
-122   2417964 1908-01-23 2417993 1908-02-21 -29 AAVSO
-121   2418175 1908-08-21 2418213 1908-09-28 -38 SVO
-120   2418390 1909-03-24 2418432 1909-05-05 -42 AAVSO
-119   2418620 1909-11-09 2418652 1909-12-11 -32 SVO
-118   2418829 1910-06-06 2418871 1910-07-18 -42 GuL, 1920, 1.2
-117   2419066 1911-01-29 2419091 1911-02-23 -25 AAVSO
-116   2419271 1911-08-22 2419310 1911-09-30 -39 GuL, 1920, 1.2
-115 9.4 2419491 1912-03-29 2419529 1912-05-06 -38 SVO
-114 9.5 2419712 1912-11-05 2419749 1912-12-12 -37 SVO
-113 9.1 2419936 1913-06-17 2419968 1913-07-19 -32 SVO
-112 9.4 2420155 1914-01-22 2420188 1914-02-24 -33 SVO
-111 9.9 2420382 1914-09-06 2420407 1914-10-01 -25 SVO
-110 9.3 2420603 1915-04-15 2420627 1915-05-09 -24 SVO
-109 8.9 2420823 1915-11-21 2420846 1915-12-14 -23 AAVSO
-108 9.6 2421050 1916-07-05 2421065 1916-07-20 -15 SVO
-107   2421277 1917-02-17 2421285 1917-02-25 -8 AAVSO
-106 10.2 2421487 1917-09-15 2421504 1917-10-02 -17 SVO
-105 9.4 2421703 1918-04-19 2421724 1918-05-10 -21 SVO
-104 9.1 2421937 1918-12-09 2421943 1918-12-15 -6 AAVSO
-103 9.1 2422148 1919-07-08 2422163 1919-07-23 -15 SVO
-102   2422376 1920-02-21 2422382 1920-02-27 -6 AAVSO
-101 9.1 2422587 1920-09-19 2422602 1920-10-04 -15 SVO
-100 9.0 2422818 1921-05-08 2422821 1921-05-11 -3 AAVSO
-99 9.6 2423035 1921-12-11 2423040 1921-12-16 -5 SVO
-98 9.7 2423250 1922-07-14 2423260 1922-07-24 -10 SVO
-97 9.5 2423473 1923-02-22 2423479 1923-02-28 -6 SVO
-96 9.1 2423687 1923-09-24 2423699 1923-10-06 -12 SVO
-95 9.3 2423906 1924-04-30 2423918 1924-05-12 -12 SVO
-94 9.3 2424135 1924-12-15 2424138 1924-12-18 -3 SVO
-93 9.5 2424353 1925-07-21 2424357 1925-07-25 -4 SVO
-92 9.0 2424569 1926-02-22 2424577 1926-03-02 -8 SVO
-91 9.7 2424791 1926-10-02 2424796 1926-10-07 -5 SVO
-90 9.2 2425014 1927-05-13 2425015 1927-05-14 -1 SVO
-89 10.1 2425240 1927-12-25 2425235 1927-12-20 5 SVO
-88 9.2 2425449 1928-07-21 2425454 1928-07-26 -5 SVO
-87 9.5 2425679 1929-03-08 2425674 1929-03-03 5 SVO
-86 9.4 2425895 1929-10-10 2425893 1929-10-08 2 SVO
-85 9.2 2426105 1930-05-08 2426113 1930-05-16 -8 SVO
-84 10.2 2426332 1930-12-21 2426332 1930-12-21 0 SVO
-83 9.1 2426539 1931-07-16 2426551 1931-07-28 -12 SVO
-82 9.8 2426758 1932-02-20 2426771 1932-03-04 -13 SVO
-81 9.8 2426975 1932-09-24 2426990 1932-10-09 -15 SVO
-80 9.0 2427191 1933-04-28 2427210 1933-05-17 -19 SVO
-79 9.9 2427414 1933-12-07 2427429 1933-12-22 -15 SVO
-78 9.6 2427633 1934-07-14 2427649 1934-07-30 -16 SVO
-77 9.2 2427849 1935-02-15 2427868 1935-03-06 -19 SVO
-76 9.5 2428065 1935-09-19 2428088 1935-10-12 -23 SVO
-75 9.3 2428288 1936-04-29 2428307 1936-05-18 -19 SVO
-74 9.3 2428505 1936-12-02 2428526 1936-12-23 -21 SVO
-73 9.6 2428726 1937-07-11 2428746 1937-07-31 -20 SVO
-72 10.0 2428957 1938-02-27 2428965 1938-03-07 -8 SVO
-71 9.3 2429158 1938-09-16 2429185 1938-10-13 -27 SVO
-70 9.3 2429380 1939-04-26 2429404 1939-05-20 -24 SVO
-69 9.8 2429600 1939-12-02 2429624 1939-12-26 -24 SVO
-68 9.2 2429810 1940-06-29 2429843 1940-08-01 -33 SVO
-67   2430037 1941-02-11 2430063 1941-03-09 -26 AAVSO
-66 10.0 2430252 1941-09-14 2430282 1941-10-14 -30 SVO
-65   2430465 1942-04-15 2430501 1942-05-21 -36 SVO
-64 9.4 2430685 1942-11-21 2430721 1942-12-27 -36 SVO
-63 9.5 2430914 1943-07-08 2430940 1943-08-03 -26 SVO
-62 9.5 2431129 1944-02-08 2431160 1944-03-10 -31 SVO
-61 8.9 2431344 1944-09-10 2431379 1944-10-15 -35 SVO
-60 9.9 2431573 1945-04-27 2431599 1945-05-23 -26 AAVSO
-59 9.7 2431789 1945-11-29 2431818 1945-12-28 -29 AAVSO
-58 9.3 2432013 1946-07-11 2432037 1946-08-04 -24 SVO
-57 10.5 2432227 1947-02-10 2432257 1947-03-12 -30 AAVSO
-56 9.8 2432455 1947-09-26 2432476 1947-10-17 -21 SVO
-55 9.7 2432667 1948-04-25 2432696 1948-05-24 -29 AAVSO
-54 9.2 2432886 1948-11-30 2432915 1948-12-29 -29 SVO
-53 9.6 2433111 1949-07-13 2433135 1949-08-06 -24 SVO
-52 10.6 2433340 1950-02-27 2433354 1950-03-13 -14 AAVSO
-51 9.3 2433554 1950-09-29 2433574 1950-10-19 -20 SVO
-50 8.9 2433766 1951-04-29 2433793 1951-05-26 -27 AAVSO
-49 10.1 2433990 1951-12-09 2434012 1951-12-31 -22 SVO
-48 9.5 2434213 1952-07-19 2434232 1952-08-07 -19 SVO
-47   2434434 1953-02-25 2434451 1953-03-14 -17 AAVSO
-46 10.3 2434657 1953-10-06 2434671 1953-10-20 -14 AAVSO
-45 9.5 2434878 1954-05-15 2434890 1954-05-27 -12 AAVSO
-44 10.0 2435092 1954-12-15 2435110 1955-01-02 -18 AAVSO
-43 9.1 2435310 1955-07-21 2435329 1955-08-09 -19 SVO
-42 9.0 2435534 1956-03-01 2435549 1956-03-16 -15 AAVSO
-41 10.1 2435756 1956-10-09 2435768 1956-10-21 -12 SVO
-40 9.6 2435973 1957-05-14 2435987 1957-05-28 -14 AAVSO
-39 9.4 2436192 1957-12-19 2436207 1958-01-03 -15 AAVSO
-38 9.9 2436409 1958-07-24 2436426 1958-08-10 -17 SVO
-37 9.4 2436628 1959-02-28 2436646 1959-03-18 -18 AAVSO
-36 9.6 2436846 1959-10-04 2436865 1959-10-23 -19 SVO
-35 9.5 2437059 1960-05-04 2437085 1960-05-30 -26 AAVSO
-34 8.9 2437272 1960-12-03 2437304 1961-01-04 -32 SVO
-33 10.9 2437507 1961-07-26 2437523 1961-08-11 -16 SVO
-32 10.0 2437723 1962-02-27 2437743 1962-03-19 -20 SVO
-31 10.0 2437940 1962-10-02 2437962 1962-10-24 -22 SVO
-30 9.7 2438162 1963-05-12 2438182 1963-06-01 -20 SVO
-29 9.7 2438384 1963-12-20 2438401 1964-01-06 -17 SVO
-28 9.7 2438605 1964-07-28 2438621 1964-08-13 -16 SVO
-27 9.4 2438826 1965-03-06 2438840 1965-03-20 -14 SVO
-26 9.8 2439050 1965-10-16 2439060 1965-10-26 -10 SVO
-25 9.5 2439269 1966-05-23 2439279 1966-06-02 -10 SVO
-24 9.5 2439486 1966-12-26 2439498 1967-01-07 -12 SVO
-23 9.5 2439711 1967-08-08 2439718 1967-08-15 -7 SVO
-22 9.4 2439930 1968-03-14 2439937 1968-03-21 -7 SVO
-21 9.4 2440151 1968-10-21 2440157 1968-10-27 -6 SVO
-20 9.6 2440371 1969-05-29 2440376 1969-06-03 -5 SVO
-19 9.2 2440588 1970-01-01 2440596 1970-01-09 -8 SVO
-18 9.5 2440809 1970-08-10 2440815 1970-08-16 -6 SVO
-17 9.6 2441034 1971-03-23 2441035 1971-03-24 -1 SVO
-16 9.8 2441257 1971-11-01 2441254 1971-10-29 3 SVO
-15 9.4 2441474 1972-06-05 2441473 1972-06-04 1 SVO
-14 9.5 2441685 1973-01-02 2441693 1973-01-10 -8 SVO
-13 9.2 2441908 1973-08-13 2441912 1973-08-17 -4 SVO
-12 9.6 2442136 1974-03-29 2442132 1974-03-25 4 SVO
-11 9.5 2442347 1974-10-26 2442351 1974-10-30 -4 SVO
-10 9.6 2442570 1975-06-06 2442571 1975-06-07 -1 SVO
-9 9.5 2442791 1976-01-13 2442790 1976-01-12 1 SVO
-8 10.5 2443018 1976-08-27 2443009 1976-08-18 9 SVO
-7 9.4 2443228 1977-03-25 2443229 1977-03-26 -1 SVO
-6 9.9 2443455 1977-11-07 2443448 1977-10-31 7 SVO
-5 9.5 2443677 1978-06-17 2443668 1978-06-08 9 SVO
-4 9.7 2443892 1979-01-18 2443887 1979-01-13 5 SVO
-3 8.9 2444097 1979-08-11 2444107 1979-08-21 -10 SVO
-2 10.5 2444328 1980-03-29 2444326 1980-03-27 2 SVO
-1 9.8 2444547 1980-11-03 2444546 1980-11-02 1 SVO
0 9.5 2444767 1981-06-11 2444765 1981-06-09 2 SVO
1 9.5 2444983 1982-01-13 2444984 1982-01-14 -1 SVO
2 9.7 2445203 1982-08-21 2445204 1982-08-22 -1 SVO
3 9.8 2445428 1983-04-03 2445423 1983-03-29 5 SVO
4 9.3 2445644 1983-11-05 2445643 1983-11-04 1 SVO
5 10.2 2445866 1984-06-14 2445862 1984-06-10 4 SVO
6 9.5 2446082 1985-01-16 2446082 1985-01-16 0 SVO
7 9.8 2446305 1985-08-27 2446301 1985-08-23 4 SVO
8 9.2 2446525 1986-04-04 2446521 1986-03-31 4 SVO
9 9.2 2446731 1986-10-27 2446740 1986-11-05 -9 SVO
10 9.3 2446954 1987-06-07 2446959 1987-06-12 -5 SVO
11 10.6 2447181 1988-01-20 2447179 1988-01-18 2 SVO
12 9.5 2447392 1988-08-18 2447398 1988-08-24 -6 SVO
13 9.3 2447613 1989-03-27 2447618 1989-04-01 -5 SVO
14 9.7 2447837 1989-11-06 2447837 1989-11-06 0 SVO
15 9.0 2448050 1990-06-07 2448057 1990-06-14 -7 SVO
16 9.7 2448271 1991-01-14 2448276 1991-01-19 -5 SVO
17 9.3 2448492 1991-08-23 2448495 1991-08-26 -3 SVO
18 9.5 2448719 1992-04-06 2448715 1992-04-02 4 SVO
19 9.5 2448941 1992-11-14 2448934 1992-11-07 7 SVO
20 9.5 2449152 1993-06-13 2449154 1993-06-15 -2 SVO
21 9.5 2449378 1994-01-25 2449373 1994-01-20 5 SVO
22 9.2 2449597 1994-09-01 2449593 1994-08-28 4 SVO
23 9.5 2449819 1995-04-11 2449812 1995-04-04 7 SVO
24 10.3 2450047 1995-11-25 2450032 1995-11-10 15 SVO
25 9.2 2450261 1996-06-26 2450251 1996-06-16 10 SVO
26 9.5 2450477 1997-01-28 2450470 1997-01-21 7 SVO
27 9.0 2450689 1997-08-28 2450690 1997-08-29 -1 SVO
28 10.6 2450922 1998-04-18 2450909 1998-04-05 13 SVO
29 9.7 2451138 1998-11-20 2451129 1998-11-11 9 SVO
30 10.5 2451361 1999-07-01 2451348 1999-06-18 13 SVO
31 9.5 2451575 2000-01-31 2451568 2000-01-24 7 SVO
32 9.9 2451797 2000-09-09 2451787 2000-08-30 10 SVO
33 9.8 2452027 2001-04-27 2452007 2001-04-07 20 SVO
34 9.2 2452232 2001-11-18 2452226 2001-11-12 6 SVO
35 9.7 2452447 2002-06-21 2452445 2002-06-19 2 SVO
36 9.7 2452674 2003-02-03 2452665 2003-01-25 9 SVO
37 10.1 2452892 2003-09-09 2452884 2003-09-01 8 SVO
38 9.1 2453116 2004-04-20 2453104 2004-04-08 12 SVO
39 10.3 2453329 2004-11-19 2453323 2004-11-13 6 SVO
40 9.3 2453541 2005-06-19 2453543 2005-06-21 -2 SVO
41 9.9 2453763 2006-01-27 2453762 2006-01-26 1 SVO
42 9.5 2453986 2006-09-07 2453981 2006-09-02 5 SVO
43 10.2 2454206 2007-04-15 2454201 2007-04-10 5 SVO
44 9.2 2454425 2007-11-20 2454420 2007-11-15 5 SVO
45 9.7 2454641 2008-06-23 2454640 2008-06-22 1 SVO
46 10.0 2454863 2009-01-31 2454859 2009-01-27 4 SVO
47 9.3 2455073 2009-08-29 2455079 2009-09-04 -6 SVO
48 9.7 2455299 2010-04-12 2455298 2010-04-11 1 SVO
49 9.7 2455518 2010-11-17 2455518 2010-11-17 0 SVO
50 9.9 2455740 2011-06-27 2455737 2011-06-24 3 SVO
51 9.4 2455956 2012-01-29 2455956 2012-01-29 0 SVO
52 10.2 2456182 2012-09-11 2456176 2012-09-05 6 SVO
53 10.0 2456402 2013-04-19 2456395 2013-04-12 7 SVO
54 9.4 2456612 2013-11-15 2456615 2013-11-18 -3 SVO
55 9.6 2456834 2014-06-25 2456834 2014-06-25 0 SVO
56 9.6 2457059 2015-02-05 2457054 2015-01-31 5 SVO
57 9.4 2457277 2015-09-11 2457273 2015-09-07 4 SVO
58 9.8 2457501 2016-04-22 2457493 2016-04-14 8 SVO
59 9.3 2457717 2016-11-24 2457712 2016-11-19 5 SVO
60 10.1 2457938 2017-07-03 2457931 2017-06-26 7 SVO
61 10.0 2458157 2018-02-07 2458151 2018-02-01 6 SVO
62 9.8 2458381 2018-09-19 2458370 2018-09-08 11 SVO
63 9.9 2458601 2019-04-27 2458590 2019-04-16 11 SVO
64 9.8 2458823 2019-12-05 2458809 2019-11-21 14 SVO
65 9.9 2459045 2020-07-14 2459029 2020-06-28 16 SVO
66 9.6 2459263 2021-02-17 2459248 2021-02-02 15 SVO
67 10.1 2459482 2021-09-24 2459467 2021-09-09 15 SVO
68 9.5 2459704 2022-05-04 2459687 2022-04-17 17 SVO
69 9.6 2459916 2022-12-02 2459906 2022-11-22 10 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.