Maxima for R Oph
Period: 303.5, Epoch: 2457961
Back to main page  Mean light curve  Period diagram

E Mag O (JD) O (dat) C (JD) C (Dat) O-C Source
-198   2398008 1853-06-03 2397868 1853-01-14 140 GuL, 1920, 1.2
-194   2399209 1856-09-16 2399082 1856-05-12 127 AnHar, 1909, vol 55, p 95
-193 8.1 2399511 1857-07-15 2399386 1857-03-12 125 SVO
-192 6.9 2399809 1858-05-09 2399689 1858-01-09 120 SVO
-187   2401329 1862-07-07 2401207 1862-03-07 122 AnHar, 1909, vol 55, p 95
-186   2401626 1863-04-30 2401510 1863-01-04 116 AnHar, 1909, vol 55, p 95
-181   2403153 1867-07-05 2403028 1867-03-02 125 AnHar, 1909, vol 55, p 95
-180   2403440 1868-04-17 2403331 1867-12-30 109 AnHar, 1909, vol 55, p 95
-179   2403743 1869-02-14 2403635 1868-10-29 108 VeBam, 1931, vol 3, p 1
-177   2404350 1870-10-14 2404242 1870-06-28 108 VeBam, 1931, vol 3, p 1
-176   2404645 1871-08-05 2404545 1871-04-27 100 AnHar, 1909, vol 55, p 95
-170   2406476 1876-08-09 2406366 1876-04-21 110 AnHar, 1909, vol 55, p 95
-169   2406769 1877-05-29 2406670 1877-02-19 99 AnHar, 1909, vol 55, p 95
-168   2407078 1878-04-03 2406973 1877-12-19 105 AnHar, 1909, vol 55, p 95
-153   2411625 1890-09-14 2411526 1890-06-07 99 AnHar, 1909, vol 55, p 95
-147   2413404 1895-07-29 2413347 1895-06-02 57 AnHar, 1909, vol 55, p 95
-146   2413712 1896-06-01 2413650 1896-03-31 62 AnHar, 1909, vol 55, p 95
-145   2414018 1897-04-03 2413954 1897-01-29 64 SVO
-142   2414926 1899-09-28 2414864 1899-07-28 62 AnHar, 1909, vol 55, p 95
-141   2415218 1900-07-17 2415168 1900-05-28 50 AnHar, 1909, vol 55, p 95
-140   2415530 1901-05-25 2415471 1901-03-27 59 AnHar, 1909, vol 55, p 95
-139   2415834 1902-03-25 2415775 1902-01-25 59 AnHar, 1909, vol 55, p 95
-136   2416736 1904-09-12 2416685 1904-07-23 51 AnHar, 1909, vol 55, p 95
-135 7.3 2417042 1905-07-15 2416989 1905-05-23 53 AAVSO
-134   2417352 1906-05-21 2417292 1906-03-22 60 AAVSO
-133   2417641 1907-03-06 2417596 1907-01-20 45 AAVSO
-132   2417946 1908-01-05 2417899 1907-11-19 47 AAVSO
-131   2418243 1908-10-28 2418203 1908-09-18 40 AAVSO
-130 7.8 2418570 1909-09-20 2418506 1909-07-18 64 AAVSO
-129 7.8 2418868 1910-07-15 2418810 1910-05-18 58 AAVSO
-128 7.3 2419161 1911-05-04 2419113 1911-03-17 48 SVO
-127 7.2 2419454 1912-02-21 2419417 1912-01-15 37 SVO
-126   2419761 1912-12-24 2419720 1912-11-13 41 AAVSO
-125 7.9 2420061 1913-10-20 2420024 1913-09-13 37 AAVSO
-124 7.5 2420365 1914-08-20 2420327 1914-07-13 38 SVO
-123 8.0 2420670 1915-06-21 2420631 1915-05-13 39 SVO
-122 6.8 2420976 1916-04-22 2420934 1916-03-11 42 AAVSO
-121   2421276 1917-02-16 2421238 1917-01-09 38 AAVSO
-120   2421576 1917-12-13 2421541 1917-11-08 35 AAVSO
-119 8.0 2421868 1918-10-01 2421845 1918-09-08 23 AAVSO
-118 7.0 2422169 1919-07-29 2422148 1919-07-08 21 SVO
-117 8.3 2422464 1920-05-19 2422452 1920-05-07 12 SVO
-116 7.2 2422780 1921-03-31 2422755 1921-03-06 25 AAVSO
-115 7.5 2423081 1922-01-26 2423059 1922-01-04 22 AAVSO
-114 7.5 2423384 1922-11-25 2423362 1922-11-03 22 SVO
-113 7.5 2423680 1923-09-17 2423666 1923-09-03 14 SVO
-112 7.5 2423983 1924-07-16 2423969 1924-07-02 14 SVO
-111 7.8 2424292 1925-05-21 2424273 1925-05-02 19 SVO
-110 7.3 2424590 1926-03-15 2424576 1926-03-01 14 SVO
-109   2424893 1927-01-12 2424880 1926-12-30 13 AAVSO
-108 7.4 2425204 1927-11-19 2425183 1927-10-29 21 SVO
-107 7.6 2425499 1928-09-09 2425487 1928-08-28 12 SVO
-106 7.8 2425810 1929-07-17 2425790 1929-06-27 20 SVO
-105 7.6 2426106 1930-05-09 2426094 1930-04-27 12 SVO
-104 7.1 2426401 1931-02-28 2426397 1931-02-24 4 SVO
-103   2426700 1931-12-24 2426701 1931-12-25 -1 AAVSO
-102 7.6 2427004 1932-10-23 2427004 1932-10-23 0 SVO
-101 7.4 2427310 1933-08-25 2427308 1933-08-23 2 SVO
-100 7.7 2427621 1934-07-02 2427611 1934-06-22 10 SVO
-99 7.0 2427909 1935-04-16 2427915 1935-04-22 -6 SVO
-98 7.8 2428225 1936-02-26 2428218 1936-02-19 7 AAVSO
-97   2428523 1936-12-20 2428522 1936-12-19 1 AAVSO
-96 7.5 2428824 1937-10-17 2428825 1937-10-18 -1 AAVSO
-95 7.3 2429134 1938-08-23 2429129 1938-08-18 5 SVO
-94 7.9 2429439 1939-06-24 2429432 1939-06-17 7 SVO
-93 7.3 2429740 1940-04-20 2429736 1940-04-16 4 SVO
-92   2430042 1941-02-16 2430039 1941-02-13 3 AAVSO
-91   2430348 1941-12-19 2430343 1941-12-14 5 AAVSO
-90 8.0 2430656 1942-10-23 2430646 1942-10-13 10 AAVSO
-89 7.8 2430957 1943-08-20 2430950 1943-08-13 7 SVO
-88 7.1 2431255 1944-06-13 2431253 1944-06-11 2 SVO
-87   2431560 1945-04-14 2431557 1945-04-11 3 AAVSO
-86   2431878 1946-02-26 2431860 1946-02-08 18 AAVSO
-84   2432484 1947-10-25 2432467 1947-10-08 17 AAVSO
-83 7.0 2432775 1948-08-11 2432771 1948-08-07 4 SVO
-82 7.4 2433087 1949-06-19 2433074 1949-06-06 13 SVO
-81 7.6 2433397 1950-04-25 2433378 1950-04-06 19 SVO
-80 7.7 2433699 1951-02-21 2433681 1951-02-03 18 AAVSO
-79 7.1 2433995 1951-12-14 2433985 1951-12-04 10 SVO
-78 7.4 2434296 1952-10-10 2434288 1952-10-02 8 AAVSO
-77 7.9 2434606 1953-08-16 2434592 1953-08-02 14 SVO
-76 7.6 2434910 1954-06-16 2434895 1954-06-01 15 SVO
-75 7.3 2435209 1955-04-11 2435199 1955-04-01 10 SVO
-74 7.9 2435511 1956-02-07 2435502 1956-01-29 9 AAVSO
-73   2435811 1956-12-03 2435806 1956-11-28 5 AAVSO
-72 7.4 2436111 1957-09-29 2436109 1957-09-27 2 AAVSO
-71 7.6 2436407 1958-07-22 2436413 1958-07-28 -6 SVO
-70 7.3 2436704 1959-05-15 2436716 1959-05-27 -12 SVO
-69 7.9 2437016 1960-03-22 2437020 1960-03-26 -4 SVO
-68   2437320 1961-01-20 2437323 1961-01-23 -3 AAVSO
-67   2437618 1961-11-14 2437627 1961-11-23 -9 AAVSO
-66 7.9 2437924 1962-09-16 2437930 1962-09-22 -6 AAVSO
-65 7.4 2438227 1963-07-16 2438234 1963-07-23 -7 SVO
-64 7.6 2438535 1964-05-19 2438537 1964-05-21 -2 SVO
-63 7.3 2438830 1965-03-10 2438841 1965-03-21 -11 SVO
-62 7.4 2439136 1966-01-10 2439144 1966-01-18 -8 AAVSO
-61 7.7 2439436 1966-11-06 2439448 1966-11-18 -12 SVO
-60 7.6 2439739 1967-09-05 2439751 1967-09-17 -12 SVO
-59 7.3 2440039 1968-07-01 2440055 1968-07-17 -16 SVO
-58 7.2 2440338 1969-04-26 2440358 1969-05-16 -20 SVO
-57 7.8 2440642 1970-02-24 2440662 1970-03-16 -20 AAVSO
-56 8.2 2440944 1970-12-23 2440965 1971-01-13 -21 AAVSO
-55 8.0 2441255 1971-10-30 2441269 1971-11-13 -14 SVO
-54 7.5 2441568 1972-09-07 2441572 1972-09-11 -4 SVO
-53 7.6 2441870 1973-07-06 2441876 1973-07-12 -6 SVO
-52 7.3 2442182 1974-05-14 2442179 1974-05-11 3 SVO
-51 7.6 2442482 1975-03-10 2442483 1975-03-11 -1 AAVSO
-50 7.9 2442781 1976-01-03 2442786 1976-01-08 -5 AAVSO
-49 8.0 2443095 1976-11-12 2443090 1976-11-07 5 SVO
-48 8.2 2443407 1977-09-20 2443393 1977-09-06 14 SVO
-47 7.1 2443707 1978-07-17 2443697 1978-07-07 10 SVO
-46 7.7 2444012 1979-05-18 2444000 1979-05-06 12 SVO
-45 7.9 2444316 1980-03-17 2444304 1980-03-05 12 SVO
-44 7.4 2444614 1981-01-09 2444607 1981-01-02 7 SVO
-43 8.2 2444919 1981-11-10 2444911 1981-11-02 8 SVO
-42 7.8 2445227 1982-09-14 2445214 1982-09-01 13 AAVSO
-41 7.8 2445542 1983-07-26 2445518 1983-07-02 24 SVO
-40 7.5 2445837 1984-05-16 2445821 1984-04-30 16 SVO
-39 7.6 2446138 1985-03-13 2446125 1985-02-28 13 SVO
-38 7.4 2446438 1986-01-07 2446428 1985-12-28 10 SVO
-37 7.2 2446736 1986-11-01 2446732 1986-10-28 4 SVO
-36 7.1 2447036 1987-08-28 2447035 1987-08-27 1 SVO
-35 8.3 2447343 1988-06-30 2447339 1988-06-26 4 SVO
-34 7.8 2447647 1989-04-30 2447642 1989-04-25 5 SVO
-33 7.3 2447933 1990-02-10 2447946 1990-02-23 -13 SVO
-32 8.2 2448250 1990-12-24 2448249 1990-12-23 1 SVO
-31 7.7 2448552 1991-10-22 2448553 1991-10-23 -1 SVO
-30 7.1 2448843 1992-08-08 2448856 1992-08-21 -13 SVO
-29 7.4 2449136 1993-05-28 2449160 1993-06-21 -24 SVO
-28 7.6 2449438 1994-03-26 2449463 1994-04-20 -25 SVO
-27 7.6 2449750 1995-02-01 2449767 1995-02-18 -17 SVO
-26 7.8 2450053 1995-12-01 2450070 1995-12-18 -17 SVO
-25 7.8 2450358 1996-10-01 2450374 1996-10-17 -16 SVO
-24 7.7 2450664 1997-08-03 2450677 1997-08-16 -13 SVO
-23 7.4 2450968 1998-06-03 2450981 1998-06-16 -13 SVO
-22 7.3 2451269 1999-03-31 2451284 1999-04-15 -15 SVO
-21   2451582 2000-02-07 2451588 2000-02-13 -6 AAVSO
-20 8.0 2451883 2000-12-04 2451891 2000-12-12 -8 SVO
-19 7.3 2452184 2001-10-01 2452195 2001-10-12 -11 SVO
-18 7.8 2452495 2002-08-08 2452498 2002-08-11 -3 SVO
-17 8.0 2452805 2003-06-14 2452802 2003-06-11 3 SVO
-16 7.1 2453104 2004-04-08 2453105 2004-04-09 -1 SVO
-15 7.8 2453411 2005-02-09 2453409 2005-02-07 2 SVO
-14 7.3 2453715 2005-12-10 2453712 2005-12-07 3 SVO
-13 7.9 2454026 2006-10-17 2454016 2006-10-07 10 SVO
-12 7.9 2454333 2007-08-20 2454319 2007-08-06 14 SVO
-11 7.3 2454636 2008-06-18 2454623 2008-06-05 13 SVO
-10 7.6 2454939 2009-04-17 2454926 2009-04-04 13 SVO
-9 8.1 2455248 2010-02-20 2455230 2010-02-02 18 SVO
-8   2455557 2010-12-26 2455533 2010-12-02 24 AAVSO
-7 7.2 2455846 2011-10-11 2455837 2011-10-02 9 SVO
-6 8.2 2456154 2012-08-14 2456140 2012-07-31 14 SVO
-5 7.8 2456469 2013-06-25 2456444 2013-05-31 25 SVO
-4 7.8 2456768 2014-04-20 2456747 2014-03-30 21 SVO
-3 8.3 2457063 2015-02-09 2457051 2015-01-28 12 AAVSO
-2 7.6 2457353 2015-11-26 2457354 2015-11-27 -1 SVO
-1 8.0 2457660 2016-09-28 2457658 2016-09-26 2 SVO
0 7.4 2457960 2017-07-25 2457961 2017-07-26 -1 SVO
1 8.3 2458270 2018-05-31 2458265 2018-05-26 5 SVO
2 8.0 2458568 2019-03-25 2458568 2019-03-25 0 SVO
3   2458870 2020-01-21 2458872 2020-01-23 -2 SVO
4 8.5 2459173 2020-11-19 2459175 2020-11-21 -2 SVO
5 7.5 2459470 2021-09-12 2459479 2021-09-21 -9 SVO
6 7.7 2459769 2022-07-08 2459782 2022-07-21 -13 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.