Maxima for X Sco
Period: 199.86, Epoch: 2439135
Back to main page  Mean light curve  Period diagram

E Mag O (JD) O (dat) C (JD) C (Dat) O-C Source
-160   2407148 1878-06-12 2407157 1878-06-21 -9 AnHar, 1937, vol 105, p 459
-158   2407555 1879-07-24 2407557 1879-07-26 -2 GuL, 1920, 1.2
-156   2407953 1880-08-25 2407957 1880-08-29 -4 GuL, 1920, 1.2
-151   2408956 1883-05-25 2408956 1883-05-25 0 GuL, 1920, 1.2
-149   2409352 1884-06-24 2409356 1884-06-28 -4 GuL, 1920, 1.2
-147   2409760 1885-08-06 2409756 1885-08-02 4 GuL, 1920, 1.2
-145   2410143 1886-08-24 2410155 1886-09-05 -12 GuL, 1920, 1.2
-142   2410764 1888-05-06 2410755 1888-04-27 9 GuL, 1920, 1.2
-136   2411937 1891-07-23 2411954 1891-08-09 -17 AnHar, 1909, vol 55, p 95, GuL, 1920, 1.2
-131   2412928 1894-04-09 2412953 1894-05-04 -25 AnHar, 1909, vol 55, p 95
-127   2413722 1896-06-11 2413753 1896-07-12 -31 GuL, 1920, 1.2
-125   2414126 1897-07-20 2414153 1897-08-16 -27 AnHar, 1909, vol 55, p 95
-120   2415130 1900-04-20 2415152 1900-05-12 -22 SVO
-118   2415540 1901-06-04 2415552 1901-06-16 -12 SVO
-116   2415925 1902-06-24 2415951 1902-07-20 -26 SVO
-114   2416330 1903-08-03 2416351 1903-08-24 -21 SVO
-109   2417330 1906-04-29 2417350 1906-05-19 -20 SVO
-105   2418125 1908-07-02 2418150 1908-07-27 -25 SVO
-103   2418535 1909-08-16 2418549 1909-08-30 -14 SVO
-96   2419945 1913-06-26 2419948 1913-06-29 -3 SVO
-94   2420345 1914-07-31 2420348 1914-08-03 -3 SVO
-92   2420722 1915-08-12 2420748 1915-09-07 -26 GuL, 1920, 1.2
-89   2421335 1917-04-16 2421347 1917-04-28 -12 SVO
-87   2421730 1918-05-16 2421747 1918-06-02 -17 SVO
-85   2422135 1919-06-25 2422147 1919-07-07 -12 SVO
-82   2422707 1921-01-17 2422746 1921-02-25 -39 AAVSO
-79   2423304 1922-09-06 2423346 1922-10-18 -42 AAVSO
-78 11.4 2423505 1923-03-26 2423546 1923-05-06 -41 AAVSO
-77 10.8 2423704 1923-10-11 2423746 1923-11-22 -42 AAVSO
-76 10.6 2423912 1924-05-06 2423946 1924-06-09 -34 SVO
-74 10.7 2424310 1925-06-08 2424345 1925-07-13 -35 AAVSO
-72 10.6 2424705 1926-07-08 2424745 1926-08-17 -40 AAVSO
-71 11.4 2424908 1927-01-27 2424945 1927-03-05 -37 AAVSO
-70 10.7 2425105 1927-08-12 2425145 1927-09-21 -40 AAVSO
-69 11.2 2425311 1928-03-05 2425345 1928-04-08 -34 AAVSO
-68 10.8 2425506 1928-09-16 2425545 1928-10-25 -39 AAVSO
-67 10.9 2425706 1929-04-04 2425744 1929-05-12 -38 AAVSO
-66   2425903 1929-10-18 2425944 1929-11-28 -41 AAVSO
-65 11.3 2426115 1930-05-18 2426144 1930-06-16 -29 AAVSO
-64   2426313 1930-12-02 2426344 1931-01-02 -31 AAVSO
-63 11.7 2426512 1931-06-19 2426544 1931-07-21 -32 AAVSO
-62 10.8 2426715 1932-01-08 2426744 1932-02-06 -29 AAVSO
-61 11.1 2426912 1932-07-23 2426944 1932-08-24 -32 SVO
-60 10.9 2427111 1933-02-07 2427143 1933-03-11 -32 AAVSO
-59   2427312 1933-08-27 2427343 1933-09-27 -31 AAVSO
-58 10.5 2427511 1934-03-14 2427543 1934-04-15 -32 AAVSO
-57 11.2 2427703 1934-09-22 2427743 1934-11-01 -40 AAVSO
-56 10.9 2427903 1935-04-10 2427943 1935-05-20 -40 AAVSO
-55   2428105 1935-10-29 2428143 1935-12-06 -38 AAVSO
-54   2428315 1936-05-26 2428343 1936-06-23 -28 AAVSO
-53   2428508 1936-12-05 2428542 1937-01-08 -34 AAVSO
-52 10.9 2428705 1937-06-20 2428742 1937-07-27 -37 SVO
-51   2428901 1938-01-02 2428942 1938-02-12 -41 AAVSO
-50 10.9 2429109 1938-07-29 2429142 1938-08-31 -33 SVO
-49   2429313 1939-02-18 2429342 1939-03-19 -29 AAVSO
-48 11.2 2429508 1939-09-01 2429542 1939-10-05 -34 AAVSO
-47 10.6 2429705 1940-03-16 2429742 1940-04-22 -37 AAVSO
-46 11.0 2429908 1940-10-05 2429941 1940-11-07 -33 AAVSO
-45   2430091 1941-04-06 2430141 1941-05-26 -50 AAVSO
-44   2430291 1941-10-23 2430341 1941-12-12 -50 AAVSO
-43 11.1 2430510 1942-05-30 2430541 1942-06-30 -31 AAVSO
-41 11.0 2430926 1943-07-20 2430941 1943-08-04 -15 AAVSO
-39   2431326 1944-08-23 2431340 1944-09-06 -14 AAVSO
-32 10.8 2432733 1948-06-30 2432739 1948-07-06 -6 AAVSO
-31 11.0 2432939 1949-01-22 2432939 1949-01-22 0 AAVSO
-30 10.4 2433141 1949-08-12 2433139 1949-08-10 2 SVO
-29 11.6 2433341 1950-02-28 2433339 1950-02-26 2 AAVSO
-28 10.8 2433543 1950-09-18 2433539 1950-09-14 4 AAVSO
-27 11.1 2433742 1951-04-05 2433739 1951-04-02 3 SVO
-26   2433943 1951-10-23 2433939 1951-10-19 4 AAVSO
-25 10.5 2434141 1952-05-08 2434139 1952-05-06 2 SVO
-24   2434342 1952-11-25 2434338 1952-11-21 4 AAVSO
-23 10.9 2434539 1953-06-10 2434538 1953-06-09 1 SVO
-22 11.0 2434737 1953-12-25 2434738 1953-12-26 -1 AAVSO
-21 10.7 2434934 1954-07-10 2434938 1954-07-14 -4 SVO
-20 10.8 2435136 1955-01-28 2435138 1955-01-30 -2 AAVSO
-19 10.7 2435335 1955-08-15 2435338 1955-08-18 -3 SVO
-18 11.1 2435543 1956-03-10 2435538 1956-03-05 5 SVO
-17 11.0 2435730 1956-09-13 2435737 1956-09-20 -7 AAVSO
-16 11.0 2435931 1957-04-02 2435937 1957-04-08 -6 AAVSO
-15 10.9 2436117 1957-10-05 2436137 1957-10-25 -20 AAVSO
-14 11.0 2436323 1958-04-29 2436337 1958-05-13 -14 AAVSO
-13   2436525 1958-11-17 2436537 1958-11-29 -12 AAVSO
-12 11.0 2436728 1959-06-08 2436737 1959-06-17 -9 SVO
-11   2436923 1959-12-20 2436937 1960-01-03 -14 AAVSO
-10 10.6 2437126 1960-07-10 2437136 1960-07-20 -10 SVO
-9 11.0 2437327 1961-01-27 2437336 1961-02-05 -9 AAVSO
-8 10.7 2437520 1961-08-08 2437536 1961-08-24 -16 AAVSO
-7 11.2 2437731 1962-03-07 2437736 1962-03-12 -5 SVO
-6 10.9 2437928 1962-09-20 2437936 1962-09-28 -8 AAVSO
-5 10.8 2438120 1963-03-31 2438136 1963-04-16 -16 SVO
-4 10.5 2438322 1963-10-19 2438336 1963-11-02 -14 AAVSO
-3 11.0 2438521 1964-05-05 2438535 1964-05-19 -14 SVO
-2   2438724 1964-11-24 2438735 1964-12-05 -11 AAVSO
-1 10.6 2438923 1965-06-11 2438935 1965-06-23 -12 SVO
0 11.1 2439126 1965-12-31 2439135 1966-01-09 -9 AAVSO
1 10.9 2439330 1966-07-23 2439335 1966-07-28 -5 SVO
2 10.8 2439529 1967-02-07 2439535 1967-02-13 -6 AAVSO
3 10.9 2439732 1967-08-29 2439735 1967-09-01 -3 SVO
4 10.9 2439926 1968-03-10 2439934 1968-03-18 -8 AAVSO
5 11.0 2440128 1968-09-28 2440134 1968-10-04 -6 AAVSO
6 10.7 2440321 1969-04-09 2440334 1969-04-22 -13 AAVSO
7   2440518 1969-10-23 2440534 1969-11-08 -16 AAVSO
8 11.3 2440730 1970-05-23 2440734 1970-05-27 -4 SVO
9   2440919 1970-11-28 2440934 1970-12-13 -15 AAVSO
10 11.6 2441118 1971-06-15 2441134 1971-07-01 -16 SVO
11   2441319 1972-01-02 2441333 1972-01-16 -14 AAVSO
12 11.0 2441518 1972-07-19 2441533 1972-08-03 -15 AAVSO
13   2441713 1973-01-30 2441733 1973-02-19 -20 AAVSO
14 10.7 2441907 1973-08-12 2441933 1973-09-07 -26 AAVSO
15 10.6 2442107 1974-02-28 2442133 1974-03-26 -26 AAVSO
16 10.9 2442301 1974-09-10 2442333 1974-10-12 -32 AAVSO
17 11.4 2442512 1975-04-09 2442533 1975-04-30 -21 SVO
18 11.5 2442712 1975-10-26 2442732 1975-11-15 -20 AAVSO
19 10.4 2442893 1976-04-24 2442932 1976-06-02 -39 SVO
20 12.1 2443092 1976-11-09 2443132 1976-12-19 -40 AAVSO
21 11.0 2443295 1977-05-31 2443332 1977-07-07 -37 SVO
22   2443493 1977-12-15 2443532 1978-01-23 -39 AAVSO
23 11.1 2443693 1978-07-03 2443732 1978-08-11 -39 SVO
24 11.1 2443893 1979-01-19 2443932 1979-02-27 -39 AAVSO
25 11.0 2444091 1979-08-05 2444132 1979-09-15 -41 SVO
26 11.1 2444292 1980-02-22 2444331 1980-04-01 -39 AAVSO
27 10.5 2444484 1980-09-01 2444531 1980-10-18 -47 AAVSO
28 11.2 2444683 1981-03-19 2444731 1981-05-06 -48 SVO
29 10.5 2444872 1981-09-24 2444931 1981-11-22 -59 AAVSO
30 10.9 2445084 1982-04-24 2445131 1982-06-10 -47 SVO
31 12.2 2445286 1982-11-12 2445331 1982-12-27 -45 AAVSO
32 10.6 2445481 1983-05-26 2445531 1983-07-15 -50 SVO
33 12.5 2445692 1983-12-23 2445730 1984-01-30 -38 AAVSO
34 11.0 2445890 1984-07-08 2445930 1984-08-17 -40 SVO
35 10.9 2446091 1985-01-25 2446130 1985-03-05 -39 AAVSO
36 11.1 2446286 1985-08-08 2446330 1985-09-21 -44 SVO
37 10.8 2446483 1986-02-21 2446530 1986-04-09 -47 SVO
38 10.7 2446693 1986-09-19 2446730 1986-10-26 -37 AAVSO
39 10.5 2446879 1987-03-24 2446930 1987-05-14 -51 SVO
40   2447075 1987-10-06 2447129 1987-11-29 -54 AAVSO
41 11.2 2447284 1988-05-02 2447329 1988-06-16 -45 SVO
42   2447472 1988-11-06 2447529 1989-01-02 -57 AAVSO
43 11.0 2447676 1989-05-29 2447729 1989-07-21 -53 SVO
44   2447874 1989-12-13 2447929 1990-02-06 -55 AAVSO
45 11.0 2448080 1990-07-07 2448129 1990-08-25 -49 SVO
46   2448281 1991-01-24 2448329 1991-03-13 -48 AAVSO
47 11.0 2448479 1991-08-10 2448528 1991-09-28 -49 SVO
48   2448665 1992-02-12 2448728 1992-04-15 -63 AAVSO
49   2448874 1992-09-08 2448928 1992-11-01 -54 AAVSO
50 11.0 2449078 1993-03-31 2449128 1993-05-20 -50 SVO
51   2449268 1993-10-07 2449328 1993-12-06 -60 AAVSO
52 10.7 2449464 1994-04-21 2449528 1994-06-24 -64 SVO
53   2449660 1994-11-03 2449728 1995-01-10 -68 AAVSO
54 11.5 2449877 1995-06-08 2449927 1995-07-28 -50 SVO
55   2450051 1995-11-29 2450127 1996-02-13 -76 AAVSO
56 10.7 2450263 1996-06-28 2450327 1996-08-31 -64 SVO
57   2450467 1997-01-18 2450527 1997-03-19 -60 AAVSO
58 11.2 2450672 1997-08-11 2450727 1997-10-05 -55 SVO
59 10.5 2450865 1998-02-20 2450927 1998-04-23 -62 SVO
60 11.2 2451057 1998-08-31 2451127 1998-11-09 -70 SVO
61 10.9 2451261 1999-03-23 2451326 1999-05-27 -65 SVO
62   2451458 1999-10-06 2451526 1999-12-13 -68 AAVSO
63 10.9 2451665 2000-04-30 2451726 2000-06-30 -61 SVO
64   2451868 2000-11-19 2451926 2001-01-16 -58 AAVSO
65 10.8 2452053 2001-05-23 2452126 2001-08-04 -73 SVO
66   2452263 2001-12-19 2452326 2002-02-20 -63 AAVSO
67 10.7 2452451 2002-06-25 2452526 2002-09-08 -75 SVO
68   2452654 2003-01-14 2452725 2003-03-26 -71 AAVSO
69 10.9 2452856 2003-08-04 2452925 2003-10-12 -69 SVO
70   2453055 2004-02-19 2453125 2004-04-29 -70 AAVSO
71   2453264 2004-09-15 2453325 2004-11-15 -61 AAVSO
72 10.5 2453440 2005-03-10 2453525 2005-06-03 -85 SVO
73   2453648 2005-10-04 2453725 2005-12-20 -77 AAVSO
74 11.2 2453850 2006-04-24 2453925 2006-07-08 -75 SVO
75   2454037 2006-10-28 2454125 2007-01-24 -88 AAVSO
76 10.5 2454243 2007-05-22 2454324 2007-08-11 -81 SVO
77   2454431 2007-11-26 2454524 2008-02-27 -93 AAVSO
78 10.6 2454640 2008-06-22 2454724 2008-09-14 -84 SVO
79 11.3 2454834 2009-01-02 2454924 2009-04-02 -90 AAVSO
80 10.9 2455046 2009-08-02 2455124 2009-10-19 -78 SVO
81 11.2 2455242 2010-02-14 2455324 2010-05-07 -82 AAVSO
82 11.3 2455438 2010-08-29 2455524 2010-11-23 -86 AAVSO
83 11.0 2455635 2011-03-14 2455723 2011-06-10 -88 AAVSO
84 10.6 2455836 2011-10-01 2455923 2011-12-27 -87 AAVSO
85 10.6 2456035 2012-04-17 2456123 2012-07-14 -88 SVO
86   2456237 2012-11-05 2456323 2013-01-30 -86 AAVSO
87 11.0 2456440 2013-05-27 2456523 2013-08-18 -83 SVO
88   2456640 2013-12-13 2456723 2014-03-06 -83 AAVSO
89 10.7 2456837 2014-06-28 2456923 2014-09-22 -86 SVO
90 10.9 2457031 2015-01-08 2457122 2015-04-09 -91 AAVSO
91 11.0 2457230 2015-07-26 2457322 2015-10-26 -92 SVO
92 11.5 2457430 2016-02-11 2457522 2016-05-13 -92 AAVSO
93 11.0 2457630 2016-08-29 2457722 2016-11-29 -92 AAVSO
94 11.6 2457823 2017-03-10 2457922 2017-06-17 -99 SVO
95 11.0 2458017 2017-09-20 2458122 2018-01-03 -105 AAVSO
96 11.1 2458222 2018-04-13 2458322 2018-07-22 -100 SVO
97   2458420 2018-10-28 2458521 2019-02-06 -101 SVO
98 11.1 2458629 2019-05-25 2458721 2019-08-25 -92 SVO
99   2458825 2019-12-07 2458921 2020-03-12 -96 SVO
100 10.6 2459017 2020-06-16 2459121 2020-09-28 -104 SVO
101   2459220 2021-01-05 2459321 2021-04-16 -101 SVO
102 11.2 2459419 2021-07-23 2459521 2021-11-02 -102 SVO
103 10.5 2459614 2022-02-03 2459721 2022-05-21 -107 SVO
104   2459820 2022-08-28 2459920 2022-12-06 -100 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.