Maxima for RU Oph
Period: 202.11, Epoch: 2440431.7
AAVSO offset: 4

E Mag O (JD) O (dat) C (JD) C (Dat) O-C Source
-132   2413730 1896-06-19 2413753 1896-07-12 -23 SVO
-130   2414140 1897-08-03 2414158 1897-08-21 -18 SVO
-127   2414750 1899-04-05 2414764 1899-04-19 -14 SVO
-126   2414945 1899-10-17 2414966 1899-11-07 -21 SVO
-125   2415151 1900-05-11 2415168 1900-05-28 -17 SVO
-123   2415556 1901-06-20 2415572 1901-07-06 -16 SVO
-121   2415959 1902-07-28 2415977 1902-08-15 -18 SVO
-119   2416368 1903-09-10 2416381 1903-09-23 -13 SVO
-117   2416775 1904-10-21 2416785 1904-10-31 -10 SVO
-116   2416971 1905-05-05 2416987 1905-05-21 -16 SVO
-114   2417388 1906-06-26 2417391 1906-06-29 -3 AnHar, 1937, vol 105, p 459
-112   2417783 1907-07-26 2417796 1907-08-08 -13 SVO
-111   2417984 1908-02-12 2417998 1908-02-26 -14 AAVSO
-110 9.0 2418186 1908-09-01 2418200 1908-09-15 -14 AAVSO
-109 9.0 2418393 1909-03-27 2418402 1909-04-05 -9 AAVSO
-108 9.0 2418600 1909-10-20 2418604 1909-10-24 -4 AAVSO
-107   2418785 1910-04-23 2418806 1910-05-14 -21 SVO
-105 9.1 2419198 1911-06-10 2419210 1911-06-22 -12 AAVSO
-103   2419600 1912-07-16 2419615 1912-07-31 -15 SVO
-101   2420010 1913-08-30 2420019 1913-09-08 -9 AAVSO
-99   2420416 1914-10-10 2420423 1914-10-17 -7 AAVSO
-98   2420611 1915-04-23 2420625 1915-05-07 -14 AAVSO
-97 8.7 2420806 1915-11-04 2420827 1915-11-25 -21 AAVSO
-96 9.1 2420996 1916-05-12 2421029 1916-06-14 -33 SVO
-95   2421206 1916-12-08 2421231 1917-01-02 -25 AAVSO
-94   2421420 1917-07-10 2421433 1917-07-23 -13 AAVSO
-93   2421612 1918-01-18 2421636 1918-02-11 -24 AAVSO
-92 9.3 2421807 1918-08-01 2421838 1918-09-01 -31 SVO
-91   2422024 1919-03-06 2422040 1919-03-22 -16 AAVSO
-90   2422222 1919-09-20 2422242 1919-10-10 -20 AAVSO
-89 9.1 2422431 1920-04-16 2422444 1920-04-29 -13 AAVSO
-88 9.5 2422626 1920-10-28 2422646 1920-11-17 -20 AAVSO
-87 9.2 2422827 1921-05-17 2422848 1921-06-07 -21 SVO
-86   2423034 1921-12-10 2423050 1921-12-26 -16 AAVSO
-85 9.2 2423238 1922-07-02 2423252 1922-07-16 -14 SVO
-84 8.8 2423445 1923-01-25 2423455 1923-02-04 -10 AAVSO
-83 9.7 2423638 1923-08-06 2423657 1923-08-25 -19 SVO
-82 9.0 2423840 1924-02-24 2423859 1924-03-14 -19 AAVSO
-81 9.1 2424049 1924-09-20 2424061 1924-10-02 -12 AAVSO
-80 9.2 2424259 1925-04-18 2424263 1925-04-22 -4 AAVSO
-79 9.0 2424459 1925-11-04 2424465 1925-11-10 -6 AAVSO
-78 9.5 2424663 1926-05-27 2424667 1926-05-31 -4 AAVSO
-77 8.8 2424865 1926-12-15 2424869 1926-12-19 -4 AAVSO
-76 8.9 2425073 1927-07-11 2425071 1927-07-09 2 AAVSO
-75 9.0 2425274 1928-01-28 2425274 1928-01-28 0 AAVSO
-74 9.8 2425475 1928-08-16 2425476 1928-08-17 -1 AAVSO
-73 9.0 2425676 1929-03-05 2425678 1929-03-07 -2 SVO
-72 9.2 2425877 1929-09-22 2425880 1929-09-25 -3 SVO
-71 9.1 2426079 1930-04-12 2426082 1930-04-15 -3 SVO
-70 9.2 2426291 1930-11-10 2426284 1930-11-03 7 SVO
-69 9.8 2426496 1931-06-03 2426486 1931-05-24 10 SVO
-68 9.0 2426692 1931-12-16 2426688 1931-12-12 4 SVO
-67 9.6 2426898 1932-07-09 2426890 1932-07-01 8 SVO
-66 9.9 2427108 1933-02-04 2427093 1933-01-20 15 SVO
-65 8.9 2427295 1933-08-10 2427295 1933-08-10 0 SVO
-64 9.2 2427498 1934-03-01 2427497 1934-02-28 1 AAVSO
-63 9.1 2427698 1934-09-17 2427699 1934-09-18 -1 SVO
-62 9.8 2427906 1935-04-13 2427901 1935-04-08 5 AAVSO
-61 8.9 2428110 1935-11-03 2428103 1935-10-27 7 AAVSO
-60 9.3 2428304 1936-05-15 2428305 1936-05-16 -1 SVO
-59 9.4 2428506 1936-12-03 2428507 1936-12-04 -1 AAVSO
-58 9.1 2428695 1937-06-10 2428709 1937-06-24 -14 SVO
-57   2428906 1938-01-07 2428912 1938-01-13 -6 AAVSO
-56 9.4 2429110 1938-07-30 2429114 1938-08-03 -4 SVO
-55 9.4 2429315 1939-02-20 2429316 1939-02-21 -1 AAVSO
-54 9.4 2429510 1939-09-03 2429518 1939-09-11 -8 SVO
-53 9.4 2429719 1940-03-30 2429720 1940-03-31 -1 AAVSO
-52 9.3 2429924 1940-10-21 2429922 1940-10-19 2 AAVSO
-51 9.3 2430125 1941-05-10 2430124 1941-05-09 1 SVO
-50   2430334 1941-12-05 2430326 1941-11-27 8 AAVSO
-49 9.1 2430533 1942-06-22 2430528 1942-06-17 5 SVO
-47 9.7 2430942 1943-08-05 2430933 1943-07-27 9 SVO
-46 9.2 2431139 1944-02-18 2431135 1944-02-14 4 AAVSO
-45 9.6 2431349 1944-09-15 2431337 1944-09-03 12 SVO
-44 9.1 2431554 1945-04-08 2431539 1945-03-24 15 AAVSO
-43 9.0 2431754 1945-10-25 2431741 1945-10-12 13 AAVSO
-42 9.1 2431956 1946-05-15 2431943 1946-05-02 13 AAVSO
-41 9.5 2432173 1946-12-18 2432145 1946-11-20 28 AAVSO
-40 9.7 2432375 1947-07-08 2432347 1947-06-10 28 SVO
-39   2432575 1948-01-24 2432549 1947-12-29 26 AAVSO
-38 9.5 2432772 1948-08-08 2432752 1948-07-19 20 SVO
-37 9.5 2432972 1949-02-24 2432954 1949-02-06 18 AAVSO
-36 9.1 2433174 1949-09-14 2433156 1949-08-27 18 SVO
-35 9.0 2433384 1950-04-12 2433358 1950-03-17 26 AAVSO
-34 9.3 2433590 1950-11-04 2433560 1950-10-05 30 AAVSO
-33 9.4 2433791 1951-05-24 2433762 1951-04-25 29 SVO
-32 9.0 2433978 1951-11-27 2433964 1951-11-13 14 SVO
-31 9.3 2434185 1952-06-21 2434166 1952-06-02 19 SVO
-30   2434383 1953-01-05 2434368 1952-12-21 15 AAVSO
-29 9.3 2434586 1953-07-27 2434571 1953-07-12 15 SVO
-28   2434790 1954-02-16 2434773 1954-01-30 17 AAVSO
-27 9.4 2434990 1954-09-04 2434975 1954-08-20 15 SVO
-26   2435191 1955-03-24 2435177 1955-03-10 14 AAVSO
-25 9.0 2435390 1955-10-09 2435379 1955-09-28 11 SVO
-24 9.2 2435586 1956-04-22 2435581 1956-04-17 5 AAVSO
-23 8.6 2435789 1956-11-11 2435783 1956-11-05 6 AAVSO
-22 10.3 2435999 1957-06-09 2435985 1957-05-26 14 SVO
-21   2436195 1957-12-22 2436187 1957-12-14 8 AAVSO
-20 9.4 2436395 1958-07-10 2436390 1958-07-05 5 SVO
-19   2436599 1959-01-30 2436592 1959-01-23 7 AAVSO
-18 9.0 2436800 1959-08-19 2436794 1959-08-13 6 SVO
-17   2437005 1960-03-11 2436996 1960-03-02 9 AAVSO
-16 9.4 2437203 1960-09-25 2437198 1960-09-20 5 SVO
-15 9.4 2437414 1961-04-24 2437400 1961-04-10 14 AAVSO
-14   2437624 1961-11-20 2437602 1961-10-29 22 AAVSO
-13 9.1 2437816 1962-05-31 2437804 1962-05-19 12 SVO
-12   2438019 1962-12-20 2438006 1962-12-07 13 AAVSO
-11 9.6 2438222 1963-07-11 2438209 1963-06-28 13 SVO
-10 9.1 2438424 1964-01-29 2438411 1964-01-16 13 AAVSO
-9 9.2 2438630 1964-08-22 2438613 1964-08-05 17 SVO
-8   2438830 1965-03-10 2438815 1965-02-23 15 AAVSO
-7 8.8 2439036 1965-10-02 2439017 1965-09-13 19 SVO
-6 10.1 2439244 1966-04-28 2439219 1966-04-03 25 SVO
-5 9.7 2439448 1966-11-18 2439421 1966-10-22 27 AAVSO
-4 9.3 2439641 1967-05-30 2439623 1967-05-12 18 SVO
-3   2439844 1967-12-19 2439825 1967-11-30 19 AAVSO
-2 9.0 2440052 1968-07-14 2440027 1968-06-19 25 SVO
-1 9.6 2440253 1969-01-31 2440230 1969-01-08 23 AAVSO
0 9.1 2440449 1969-08-15 2440432 1969-07-29 17 SVO
1   2440657 1970-03-11 2440634 1970-02-16 23 AAVSO
2 9.7 2440853 1970-09-23 2440836 1970-09-06 17 SVO
3 9.0 2441056 1971-04-14 2441038 1971-03-27 18 AAVSO
4 9.6 2441254 1971-10-29 2441240 1971-10-15 14 AAVSO
5 9.4 2441453 1972-05-15 2441442 1972-05-04 11 AAVSO
6 9.8 2441645 1972-11-23 2441644 1972-11-22 1 AAVSO
7 9.6 2441852 1973-06-18 2441846 1973-06-12 6 SVO
8 9.9 2442052 1974-01-04 2442049 1974-01-01 3 AAVSO
9 9.3 2442250 1974-07-21 2442251 1974-07-22 -1 SVO
10 9.4 2442452 1975-02-08 2442453 1975-02-09 -1 AAVSO
11 9.0 2442655 1975-08-30 2442655 1975-08-30 0 SVO
12 9.3 2442851 1976-03-13 2442857 1976-03-19 -6 AAVSO
13 8.6 2443056 1976-10-04 2443059 1976-10-07 -3 SVO
14 10.2 2443267 1977-05-03 2443261 1977-04-27 6 SVO
15 9.9 2443467 1977-11-19 2443463 1977-11-15 4 AAVSO
16 9.5 2443675 1978-06-15 2443665 1978-06-05 10 SVO
17 10.7 2443873 1978-12-30 2443868 1978-12-25 5 AAVSO
18 9.5 2444078 1979-07-23 2444070 1979-07-15 8 SVO
19 9.1 2444280 1980-02-10 2444272 1980-02-02 8 AAVSO
20 9.3 2444488 1980-09-05 2444474 1980-08-22 14 SVO
21 9.2 2444690 1981-03-26 2444676 1981-03-12 14 SVO
22 9.4 2444895 1981-10-17 2444878 1981-09-30 17 SVO
23 9.1 2445093 1982-05-03 2445080 1982-04-20 13 SVO
24 9.6 2445299 1982-11-25 2445282 1982-11-08 17 AAVSO
25 9.2 2445504 1983-06-18 2445484 1983-05-29 20 SVO
26 9.1 2445707 1984-01-07 2445687 1983-12-18 20 SVO
27 9.2 2445910 1984-07-28 2445889 1984-07-07 21 SVO
28 9.6 2446110 1985-02-13 2446091 1985-01-25 19 AAVSO
29 9.3 2446327 1985-09-18 2446293 1985-08-15 34 SVO
30 9.6 2446529 1986-04-08 2446495 1986-03-05 34 SVO
31 9.5 2446732 1986-10-28 2446697 1986-09-23 35 SVO
32 9.0 2446924 1987-05-08 2446899 1987-04-13 25 SVO
33 9.2 2447133 1987-12-03 2447101 1987-11-01 32 SVO
34 9.3 2447340 1988-06-27 2447303 1988-05-21 37 SVO
35 9.6 2447541 1989-01-14 2447506 1988-12-10 35 SVO
36 8.9 2447731 1989-07-23 2447708 1989-06-30 23 SVO
37 9.9 2447943 1990-02-20 2447910 1990-01-18 33 SVO
38 9.8 2448149 1990-09-14 2448112 1990-08-08 37 SVO
39 9.2 2448341 1991-03-25 2448314 1991-02-26 27 SVO
40 9.1 2448536 1991-10-06 2448516 1991-09-16 20 SVO
41 10.0 2448738 1992-04-25 2448718 1992-04-05 20 SVO
42   2448935 1992-11-08 2448920 1992-10-24 15 AAVSO
43 9.0 2449124 1993-05-16 2449122 1993-05-14 2 SVO
44   2449330 1993-12-08 2449325 1993-12-03 5 AAVSO
45 9.7 2449530 1994-06-26 2449527 1994-06-23 3 SVO
46 8.9 2449728 1995-01-10 2449729 1995-01-11 -1 SVO
47 10.3 2449933 1995-08-03 2449931 1995-08-01 2 SVO
48 9.2 2450125 1996-02-11 2450133 1996-02-19 -8 SVO
49 9.9 2450332 1996-09-05 2450335 1996-09-08 -3 SVO
50 9.7 2450534 1997-03-26 2450537 1997-03-29 -3 SVO
51 8.9 2450722 1997-09-30 2450739 1997-10-17 -17 SVO
52 9.7 2450922 1998-04-18 2450941 1998-05-07 -19 SVO
53 9.4 2451128 1998-11-10 2451143 1998-11-25 -15 SVO
54 9.7 2451331 1999-06-01 2451346 1999-06-16 -15 SVO
55 8.9 2451527 1999-12-14 2451548 2000-01-04 -21 SVO
56 10.1 2451738 2000-07-12 2451750 2000-07-24 -12 SVO
57   2451928 2001-01-18 2451952 2001-02-11 -24 AAVSO
58 9.4 2452135 2001-08-13 2452154 2001-09-01 -19 SVO
59 9.1 2452334 2002-02-28 2452356 2002-03-22 -22 SVO
60 9.6 2452544 2002-09-26 2452558 2002-10-10 -14 SVO
61 9.2 2452741 2003-04-11 2452760 2003-04-30 -19 SVO
62   2452949 2003-11-05 2452962 2003-11-18 -13 AAVSO
63 9.6 2453154 2004-05-28 2453165 2004-06-08 -11 SVO
64 9.4 2453355 2004-12-15 2453367 2004-12-27 -12 SVO
65 9.0 2453553 2005-07-01 2453569 2005-07-17 -16 SVO
66 10.0 2453760 2006-01-24 2453771 2006-02-04 -11 SVO
67 9.2 2453952 2006-08-04 2453973 2006-08-25 -21 SVO
68 9.5 2454163 2007-03-03 2454175 2007-03-15 -12 SVO
69 9.5 2454371 2007-09-27 2454377 2007-10-03 -6 SVO
70 9.7 2454581 2008-04-24 2454579 2008-04-22 2 SVO
71 8.7 2454766 2008-10-26 2454781 2008-11-10 -15 SVO
72 9.2 2454969 2009-05-17 2454984 2009-06-01 -15 SVO
73 9.1 2455170 2009-12-04 2455186 2009-12-20 -16 SVO
74 9.3 2455376 2010-06-28 2455388 2010-07-10 -12 SVO
75 9.4 2455575 2011-01-13 2455590 2011-01-28 -15 AAVSO
76 8.8 2455774 2011-07-31 2455792 2011-08-18 -18 SVO
77 9.7 2455979 2012-02-21 2455994 2012-03-07 -15 SVO
78 9.9 2456186 2012-09-15 2456196 2012-09-25 -10 SVO
79 9.1 2456386 2013-04-03 2456398 2013-04-15 -12 SVO
80 9.2 2456581 2013-10-15 2456600 2013-11-03 -19 AAVSO
81 9.5 2456790 2014-05-12 2456803 2014-05-25 -13 SVO
82 9.1 2456992 2014-11-30 2457005 2014-12-13 -13 SVO
83 10.0 2457197 2015-06-23 2457207 2015-07-03 -10 SVO
84   2457392 2016-01-04 2457409 2016-01-21 -17 AAVSO
85 9.1 2457605 2016-08-04 2457611 2016-08-10 -6 SVO
86 9.4 2457798 2017-02-13 2457813 2017-02-28 -15 AAVSO
87 8.9 2458000 2017-09-03 2458015 2017-09-18 -15 SVO
88 9.0 2458204 2018-03-26 2458217 2018-04-08 -13 SVO
89 9.1 2458397 2018-10-05 2458419 2018-10-27 -22 SVO
90 8.9 2458599 2019-04-25 2458622 2019-05-18 -23 SVO
91   2458805 2019-11-17 2458824 2019-12-06 -19 SVO
92 9.0 2459005 2020-06-04 2459026 2020-06-25 -21 SVO
93   2459205 2020-12-21 2459228 2021-01-13 -23 SVO
94 9.2 2459409 2021-07-13 2459430 2021-08-03 -21 SVO
95 9.1 2459604 2022-01-24 2459632 2022-02-21 -28 SVO
96 9.0 2459806 2022-08-14 2459834 2022-09-11 -28 SVO
97 9.2 2460010 2023-03-06 2460036 2023-04-01 -26 SVO
98 8.9 2460210 2023-09-22 2460238 2023-10-20 -28 SVO
99 9.1 2460417 2024-04-16 2460440 2024-05-09 -23 SVO
100 8.9 2460619 2024-11-04 2460643 2024-11-28 -24 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.