Maxima for X Oph
Period: 332, Epoch: 2457196
Back to main page  Mean light curve  Period diagram

E Mag O (JD) O (dat) C (JD) C (Dat) O-C Source
-142   2410062 1886-06-04 2410052 1886-05-25 10 AnHar, 1909, vol 55, p 95
-141   2410356 1887-03-25 2410384 1887-04-22 -28 GuL, 1920, 1.2
-136   2412063 1891-11-26 2412044 1891-11-07 19 AnHar, 1909, vol 55, p 95
-134   2412728 1893-09-21 2412708 1893-09-01 20 GuL, 1920, 1.2
-133   2413082 1894-09-10 2413040 1894-07-30 42 AnHar, 1909, vol 55, p 95
-132   2413411 1895-08-05 2413372 1895-06-27 39 AnHar, 1909, vol 55, p 95
-131   2413743 1896-07-02 2413704 1896-05-24 39 AnHar, 1909, vol 55, p 95
-130   2414090 1897-06-14 2414036 1897-04-21 54 AnHar, 1909, vol 55, p 95
-128   2414770 1899-04-25 2414700 1899-02-14 70 SVO
-127   2415110 1900-03-31 2415032 1900-01-12 78 SVO
-125   2415762 1902-01-12 2415696 1901-11-07 66 SVO
-123   2416419 1903-10-31 2416360 1903-09-02 59 GuL, 1920, 1.2
-122 6.8 2416760 1904-10-06 2416692 1904-07-30 68 AAVSO
-121 7.3 2417089 1905-08-31 2417024 1905-06-27 65 AAVSO
-120 7.1 2417444 1906-08-21 2417356 1906-05-25 88 SVO
-119 6.8 2417761 1907-07-04 2417688 1907-04-22 73 AAVSO
-118 6.6 2418087 1908-05-25 2418020 1908-03-19 67 SVO
-117 6.4 2418449 1909-05-22 2418352 1909-02-14 97 AAVSO
-116   2418776 1910-04-14 2418684 1910-01-12 92 AAVSO
-114 6.9 2419439 1912-02-06 2419348 1911-11-07 91 SVO
-113 6.5 2419761 1912-12-24 2419680 1912-10-04 81 SVO
-112 6.8 2420096 1913-11-24 2420012 1913-09-01 84 SVO
-111 6.7 2420445 1914-11-08 2420344 1914-07-30 101 SVO
-110 6.8 2420775 1915-10-04 2420676 1915-06-27 99 SVO
-109 7.0 2421129 1916-09-22 2421008 1916-05-24 121 SVO
-108 7.1 2421468 1917-08-27 2421340 1917-04-21 128 SVO
-107 6.7 2421801 1918-07-26 2421672 1918-03-19 129 SVO
-106 6.6 2422138 1919-06-28 2422004 1919-02-14 134 SVO
-105 6.7 2422473 1920-05-28 2422336 1920-01-12 137 SVO
-104 6.9 2422821 1921-05-11 2422668 1920-12-09 153 SVO
-103 6.6 2423152 1922-04-07 2423000 1921-11-06 152 SVO
-102 6.7 2423495 1923-03-16 2423332 1922-10-04 163 SVO
-101 6.7 2423827 1924-02-11 2423664 1923-09-01 163 SVO
-100 6.9 2424163 1925-01-12 2423996 1924-07-29 167 SVO
-99 6.9 2424494 1925-12-09 2424328 1925-06-26 166 SVO
-98 6.8 2424830 1926-11-10 2424660 1926-05-24 170 SVO
-97 7.0 2425169 1927-10-15 2424992 1927-04-21 177 SVO
-96 6.8 2425507 1928-09-17 2425324 1928-03-18 183 SVO
-95 6.8 2425843 1929-08-19 2425656 1929-02-13 187 SVO
-94 7.0 2426166 1930-07-08 2425988 1930-01-11 178 SVO
-93 6.7 2426491 1931-05-29 2426320 1930-12-09 171 SVO
-92 6.8 2426823 1932-04-25 2426652 1931-11-06 171 SVO
-91 6.8 2427150 1933-03-18 2426984 1932-10-03 166 SVO
-90 7.0 2427484 1934-02-15 2427316 1933-08-31 168 SVO
-89 6.9 2427834 1935-01-31 2427648 1934-07-29 186 SVO
-88 6.9 2428146 1935-12-09 2427980 1935-06-26 166 SVO
-87 6.9 2428489 1936-11-16 2428312 1936-05-23 177 SVO
-86 6.7 2428810 1937-10-03 2428644 1937-04-20 166 SVO
-85 7.0 2429140 1938-08-29 2428976 1938-03-18 164 SVO
-84 6.9 2429468 1939-07-23 2429308 1939-02-13 160 SVO
-83 6.9 2429800 1940-06-19 2429640 1940-01-11 160 SVO
-82 7.0 2430137 1941-05-22 2429972 1940-12-08 165 SVO
-81 7.0 2430468 1942-04-18 2430304 1941-11-05 164 SVO
-80   2430784 1943-02-28 2430636 1942-10-03 148 AAVSO
-79 7.0 2431136 1944-02-15 2430968 1943-08-31 168 SVO
-78   2431479 1945-01-23 2431300 1944-07-28 179 AAVSO
-77 6.6 2431817 1945-12-27 2431632 1945-06-25 185 AAVSO
-76 6.9 2432117 1946-10-23 2431964 1946-05-23 153 SVO
-75 7.0 2432453 1947-09-24 2432296 1947-04-20 157 AAVSO
-74 6.7 2432791 1948-08-27 2432628 1948-03-17 163 SVO
-73 7.0 2433129 1949-07-31 2432960 1949-02-12 169 SVO
-72 7.1 2433460 1950-06-27 2433292 1950-01-10 168 SVO
-71 6.9 2433791 1951-05-24 2433624 1950-12-08 167 SVO
-70 7.1 2434131 1952-04-28 2433956 1951-11-05 175 AAVSO
-69 6.9 2434459 1953-03-22 2434288 1952-10-02 171 SVO
-68 7.0 2434808 1954-03-06 2434620 1953-08-30 188 SVO
-67 7.0 2435138 1955-01-30 2434952 1954-07-28 186 SVO
-66 7.0 2435469 1955-12-27 2435284 1955-06-25 185 AAVSO
-65 7.2 2435805 1956-11-27 2435616 1956-05-22 189 SVO
-64 7.0 2436138 1957-10-26 2435948 1957-04-19 190 SVO
-63 7.1 2436473 1958-09-26 2436280 1958-03-17 193 SVO
-62 7.0 2436811 1959-08-30 2436612 1959-02-12 199 SVO
-61 6.9 2437157 1960-08-10 2436944 1960-01-10 213 SVO
-60 6.9 2437492 1961-07-11 2437276 1960-12-07 216 SVO
-59 7.0 2437822 1962-06-06 2437608 1961-11-04 214 AAVSO
-58 7.0 2438155 1963-05-05 2437940 1962-10-02 215 SVO
-57 7.0 2438484 1964-03-29 2438272 1963-08-30 212 SVO
-56 7.0 2438825 1965-03-05 2438604 1964-07-27 221 SVO
-55 7.1 2439136 1966-01-10 2438936 1965-06-24 200 SVO
-54 7.0 2439475 1966-12-15 2439268 1966-05-22 207 SVO
-53 7.0 2439815 1967-11-20 2439600 1967-04-19 215 SVO
-52 6.9 2440139 1968-10-09 2439932 1968-03-16 207 SVO
-51 7.1 2440466 1969-09-01 2440264 1969-02-11 202 SVO
-50 6.9 2440799 1970-07-31 2440596 1970-01-09 203 SVO
-49 7.0 2441139 1971-07-06 2440928 1970-12-07 211 SVO
-48 7.0 2441467 1972-05-29 2441260 1971-11-04 207 SVO
-47 7.0 2441786 1973-04-13 2441592 1972-10-01 194 SVO
-46 7.1 2442089 1974-02-10 2441924 1973-08-29 165 SVO
-45 7.0 2442437 1975-01-24 2442256 1974-07-27 181 SVO
-44 7.6 2442779 1976-01-01 2442588 1975-06-24 191 AAVSO
-43 7.0 2443092 1976-11-09 2442920 1976-05-21 172 SVO
-42 6.9 2443417 1977-09-30 2443252 1977-04-18 165 SVO
-41 7.0 2443740 1978-08-19 2443584 1978-03-16 156 SVO
-40 7.0 2444071 1979-07-16 2443916 1979-02-11 155 SVO
-39 6.9 2444397 1980-06-06 2444248 1980-01-09 149 SVO
-38 7.0 2444736 1981-05-11 2444580 1980-12-06 156 SVO
-37 7.0 2445075 1982-04-15 2444912 1981-11-03 163 SVO
-36 7.0 2445404 1983-03-10 2445244 1982-10-01 160 SVO
-35 6.9 2445732 1984-02-01 2445576 1983-08-29 156 SVO
-34 6.9 2446064 1984-12-29 2445908 1984-07-26 156 SVO
-33 7.0 2446398 1985-11-28 2446240 1985-06-23 158 SVO
-32 6.9 2446726 1986-10-22 2446572 1986-05-21 154 SVO
-31 6.7 2447056 1987-09-17 2446904 1987-04-18 152 SVO
-30 7.1 2447392 1988-08-18 2447236 1988-03-15 156 SVO
-29 7.0 2447723 1989-07-15 2447568 1989-02-10 155 SVO
-28 7.0 2448054 1990-06-11 2447900 1990-01-08 154 SVO
-27 7.2 2448393 1991-05-16 2448232 1990-12-06 161 SVO
-26 7.0 2448729 1992-04-16 2448564 1991-11-03 165 SVO
-25 7.1 2449067 1993-03-20 2448896 1992-09-30 171 SVO
-24 7.2 2449413 1994-03-01 2449228 1993-08-28 185 SVO
-23 6.9 2449746 1995-01-28 2449560 1994-07-26 186 SVO
-22 6.9 2450082 1995-12-30 2449892 1995-06-23 190 SVO
-21 6.9 2450416 1996-11-28 2450224 1996-05-20 192 SVO
-20 6.9 2450754 1997-11-01 2450556 1997-04-17 198 SVO
-19 7.0 2451098 1998-10-11 2450888 1998-03-15 210 SVO
-18 6.8 2451441 1999-09-19 2451220 1999-02-10 221 SVO
-17 7.0 2451784 2000-08-27 2451552 2000-01-08 232 SVO
-16 7.2 2452133 2001-08-11 2451884 2000-12-05 249 SVO
-15 6.9 2452467 2002-07-11 2452216 2001-11-02 251 SVO
-14 7.0 2452810 2003-06-19 2452548 2002-09-30 262 SVO
-13 6.9 2453149 2004-05-23 2452880 2003-08-28 269 SVO
-12 6.8 2453487 2005-04-26 2453212 2004-07-25 275 SVO
-11 6.7 2453822 2006-03-27 2453544 2005-06-22 278 SVO
-10 6.7 2454162 2007-03-02 2453876 2006-05-20 286 SVO
-9 6.9 2454509 2008-02-12 2454208 2007-04-17 301 SVO
-8 6.7 2454849 2009-01-17 2454540 2008-03-14 309 SVO
-7 6.9 2455184 2009-12-18 2454872 2009-02-09 312 SVO
-6 6.6 2455526 2010-11-25 2455204 2010-01-07 322 SVO
-5 6.9 2455865 2011-10-30 2455536 2010-12-05 329 SVO
-4 6.6 2456209 2012-10-08 2455868 2011-11-02 341 SVO
-3 7.1 2456531 2013-08-26 2456200 2012-09-29 331 SVO
-2 6.8 2456869 2014-07-30 2456532 2013-08-27 337 SVO
-1 6.8 2457197 2015-06-23 2456864 2014-07-25 333 SVO
0 6.8 2457540 2016-05-31 2457196 2015-06-22 344 SVO
1 6.8 2457861 2017-04-17 2457528 2016-05-19 333 SVO
2 6.6 2458192 2018-03-14 2457860 2017-04-16 332 SVO
3 6.7 2458513 2019-01-29 2458192 2018-03-14 321 SVO
4   2458843 2019-12-25 2458524 2019-02-09 319 SVO
5 6.6 2459177 2020-11-23 2458856 2020-01-07 321 SVO
6 6.6 2459511 2021-10-23 2459188 2020-12-04 323 SVO
7 6.6 2459846 2022-09-23 2459520 2021-11-01 326 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.