Maxima for S Col
Period: 325.85, Epoch: 2440559
Back to main page  Mean light curve  Period diagram

E Mag O (JD) O (dat) C (JD) C (Dat) O-C Source
-92   2410596 1887-11-20 2410581 1887-11-05 15 AnHar, 1937, vol 105, p 459, PLPla, 1950, vol 26, p 5
-83   2413510 1895-11-12 2413513 1895-11-15 -3 SVO
-82   2413838 1896-10-05 2413839 1896-10-06 -1 SVO
-81   2414160 1897-08-23 2414165 1897-08-28 -5 SVO
-79 9.2 2414828 1899-06-22 2414817 1899-06-11 11 SVO
-78 8.5 2415159 1900-05-19 2415143 1900-05-03 16 SVO
-76 8.1 2415805 1902-02-24 2415794 1902-02-13 11 SVO
-75   2416130 1903-01-15 2416120 1903-01-05 10 SVO
-74   2416458 1903-12-09 2416446 1903-11-27 12 SVO
-73   2416783 1904-10-29 2416772 1904-10-18 11 SVO
-72   2417108 1905-09-19 2417098 1905-09-09 10 SVO
-71   2417435 1906-08-12 2417424 1906-08-01 11 SVO
-70 7.9 2417761 1907-07-04 2417750 1907-06-23 11 SVO
-69 8.3 2418086 1908-05-24 2418075 1908-05-13 11 SVO
-68   2418410 1909-04-13 2418401 1909-04-04 9 SVO
-67   2418738 1910-03-07 2418727 1910-02-24 11 SVO
-64 7.7 2419715 1912-11-08 2419705 1912-10-29 10 SVO
-63   2420050 1913-10-09 2420030 1913-09-19 20 SVO
-61 7.9 2420696 1915-07-17 2420682 1915-07-03 14 SVO
-59   2421350 1917-05-01 2421334 1917-04-15 16 SVO
-58 9.2 2421664 1918-03-11 2421660 1918-03-07 4 SVO
-57 9.4 2421992 1919-02-02 2421986 1919-01-27 6 SVO
-56 8.8 2422316 1919-12-23 2422311 1919-12-18 5 SVO
-55 10.2 2422646 1920-11-17 2422637 1920-11-08 9 SVO
-54 9.6 2422980 1921-10-17 2422963 1921-09-30 17 AAVSO
-53   2423284 1922-08-17 2423289 1922-08-22 -5 AAVSO
-52   2423609 1923-07-08 2423615 1923-07-14 -6 AAVSO
-51 9.2 2423935 1924-05-29 2423941 1924-06-04 -6 SVO
-50 9.3 2424260 1925-04-19 2424267 1925-04-26 -7 SVO
-49 9.1 2424586 1926-03-11 2424592 1926-03-17 -6 SVO
-48 9.5 2424913 1927-02-01 2424918 1927-02-06 -5 SVO
-47 9.3 2425244 1927-12-29 2425244 1927-12-29 0 SVO
-46 9.1 2425574 1928-11-23 2425570 1928-11-19 4 SVO
-45 9.4 2425894 1929-10-09 2425896 1929-10-11 -2 SVO
-44   2426223 1930-09-03 2426222 1930-09-02 1 AAVSO
-43   2426553 1931-07-30 2426547 1931-07-24 6 AAVSO
-42   2426877 1932-06-18 2426873 1932-06-14 4 AAVSO
-41 8.9 2427204 1933-05-11 2427199 1933-05-06 5 SVO
-40 9.3 2427528 1934-03-31 2427525 1934-03-28 3 SVO
-39 9.4 2427859 1935-02-25 2427851 1935-02-17 8 SVO
-38 9.5 2428185 1936-01-17 2428177 1936-01-09 8 SVO
-37 9.5 2428517 1936-12-14 2428503 1936-11-30 14 SVO
-36 9.2 2428836 1937-10-29 2428828 1937-10-21 8 SVO
-35 9.2 2429161 1938-09-19 2429154 1938-09-12 7 SVO
-34 9.1 2429497 1939-08-21 2429480 1939-08-04 17 SVO
-33 9.5 2429817 1940-07-06 2429806 1940-06-25 11 SVO
-32 9.7 2430153 1941-06-07 2430132 1941-05-17 21 SVO
-31 9.2 2430476 1942-04-26 2430458 1942-04-08 18 SVO
-30 9.1 2430809 1943-03-25 2430784 1943-02-28 25 SVO
-29 10.1 2431140 1944-02-19 2431109 1944-01-19 31 SVO
-28 9.4 2431474 1945-01-18 2431435 1944-12-10 39 SVO
-27 9.5 2431799 1945-12-09 2431761 1945-11-01 38 SVO
-26 9.4 2432117 1946-10-23 2432087 1946-09-23 30 SVO
-25 9.3 2432441 1947-09-12 2432413 1947-08-15 28 SVO
-24 9.8 2432775 1948-08-11 2432739 1948-07-06 36 SVO
-23 9.6 2433105 1949-07-07 2433064 1949-05-27 41 SVO
-22 9.2 2433421 1950-05-19 2433390 1950-04-18 31 SVO
-21 9.2 2433748 1951-04-11 2433716 1951-03-10 32 SVO
-20 9.3 2434078 1952-03-06 2434042 1952-01-30 36 SVO
-19 9.4 2434400 1953-01-22 2434368 1952-12-21 32 SVO
-18 9.5 2434721 1953-12-09 2434694 1953-11-12 27 SVO
-17 9.4 2435049 1954-11-02 2435020 1954-10-04 29 SVO
-16 9.2 2435367 1955-09-16 2435345 1955-08-25 22 SVO
-15 9.5 2435698 1956-08-12 2435671 1956-07-16 27 SVO
-14 9.2 2436023 1957-07-03 2435997 1957-06-07 26 SVO
-13 9.3 2436352 1958-05-28 2436323 1958-04-29 29 SVO
-12 10.5 2436681 1959-04-22 2436649 1959-03-21 32 SVO
-11 9.4 2437005 1960-03-11 2436975 1960-02-10 30 SVO
-10 9.7 2437333 1961-02-02 2437301 1961-01-01 32 SVO
-9 9.3 2437664 1961-12-30 2437626 1961-11-22 38 SVO
-8 9.5 2437975 1962-11-06 2437952 1962-10-14 23 SVO
-7 9.6 2438296 1963-09-23 2438278 1963-09-05 18 SVO
-6 9.2 2438617 1964-08-09 2438604 1964-07-27 13 SVO
-5 9.6 2438924 1965-06-12 2438930 1965-06-18 -6 SVO
-4 9.2 2439258 1966-05-12 2439256 1966-05-10 2 SVO
-3 9.4 2439583 1967-04-02 2439581 1967-03-31 2 SVO
-2 9.5 2439908 1968-02-21 2439907 1968-02-20 1 SVO
-1 9.2 2440230 1969-01-08 2440233 1969-01-11 -3 SVO
0 9.3 2440547 1969-11-21 2440559 1969-12-03 -12 SVO
1 9.9 2440881 1970-10-21 2440885 1970-10-25 -4 SVO
2 9.0 2441195 1971-08-31 2441211 1971-09-16 -16 SVO
3 10.2 2441532 1972-08-02 2441537 1972-08-07 -5 SVO
4 10.1 2441874 1973-07-10 2441862 1973-06-28 12 SVO
5 9.1 2442183 1974-05-15 2442188 1974-05-20 -5 SVO
6 9.5 2442520 1975-04-17 2442514 1975-04-11 6 SVO
7 8.6 2442847 1976-03-09 2442840 1976-03-02 7 SVO
8 10.2 2443170 1977-01-26 2443166 1977-01-22 4 SVO
9 9.6 2443500 1977-12-22 2443492 1977-12-14 8 SVO
10 9.9 2443823 1978-11-10 2443818 1978-11-05 5 SVO
11 9.3 2444145 1979-09-28 2444143 1979-09-26 2 AAVSO
12 9.6 2444469 1980-08-17 2444469 1980-08-17 0 AAVSO
13 9.6 2444804 1981-07-18 2444795 1981-07-09 9 SVO
14 8.6 2445115 1982-05-25 2445121 1982-05-31 -6 SVO
15 9.6 2445441 1983-04-16 2445447 1983-04-22 -6 SVO
16 9.2 2445767 1984-03-07 2445773 1984-03-13 -6 SVO
17 9.2 2446085 1985-01-19 2446098 1985-02-01 -13 SVO
18 9.2 2446409 1985-12-09 2446424 1985-12-24 -15 SVO
19 9.3 2446732 1986-10-28 2446750 1986-11-15 -18 SVO
20   2447053 1987-09-14 2447076 1987-10-07 -23 AAVSO
21   2447382 1988-08-08 2447402 1988-08-28 -20 AAVSO
22 9.1 2447722 1989-07-14 2447728 1989-07-20 -6 SVO
23 9.7 2448048 1990-06-05 2448054 1990-06-11 -6 SVO
24 9.4 2448376 1991-04-29 2448379 1991-05-02 -3 SVO
25 9.6 2448704 1992-03-22 2448705 1992-03-23 -1 SVO
26 9.9 2449036 1993-02-17 2449031 1993-02-12 5 SVO
27 9.0 2449356 1994-01-03 2449357 1994-01-04 -1 SVO
28 9.9 2449689 1994-12-02 2449683 1994-11-26 6 SVO
29 9.3 2450019 1995-10-28 2450009 1995-10-18 10 SVO
30   2450341 1996-09-14 2450335 1996-09-08 6 AAVSO
31   2450666 1997-08-05 2450660 1997-07-30 6 AAVSO
32   2451001 1998-07-06 2450986 1998-06-21 15 AAVSO
33   2451329 1999-05-30 2451312 1999-05-13 17 AAVSO
34   2451655 2000-04-20 2451638 2000-04-03 17 AAVSO
35 9.1 2451993 2001-03-24 2451964 2001-02-23 29 SVO
36 9.6 2452314 2002-02-08 2452290 2002-01-15 24 SVO
37 8.7 2452644 2003-01-04 2452615 2002-12-06 29 SVO
38 9.5 2452967 2003-11-23 2452941 2003-10-28 26 SVO
39   2453293 2004-10-14 2453267 2004-09-18 26 AAVSO
40 8.7 2453613 2005-08-30 2453593 2005-08-10 20 SVO
41   2453943 2006-07-26 2453919 2006-07-02 24 AAVSO
42 9.2 2454269 2007-06-17 2454245 2007-05-24 24 SVO
43 9.5 2454585 2008-04-28 2454571 2008-04-14 14 SVO
44 8.8 2454909 2009-03-18 2454896 2009-03-05 13 SVO
45 9.2 2455241 2010-02-13 2455222 2010-01-25 19 SVO
46 9.4 2455576 2011-01-14 2455548 2010-12-17 28 SVO
47 9.9 2455891 2011-11-25 2455874 2011-11-08 17 SVO
48 9.1 2456216 2012-10-15 2456200 2012-09-29 16 SVO
49 9.8 2456537 2013-09-01 2456526 2013-08-21 11 AAVSO
50 8.8 2456870 2014-07-31 2456852 2014-07-13 18 SVO
51 9.2 2457182 2015-06-08 2457177 2015-06-03 5 SVO
52 9.1 2457506 2016-04-27 2457503 2016-04-24 3 SVO
53 9.7 2457833 2017-03-20 2457829 2017-03-16 4 SVO
54 9.1 2458149 2018-01-30 2458155 2018-02-05 -6 SVO
55 9.5 2458472 2018-12-19 2458481 2018-12-28 -9 SVO
56 8.9 2458802 2019-11-14 2458807 2019-11-19 -5 SVO
57 9.8 2459132 2020-10-09 2459132 2020-10-09 0 SVO
58 9.1 2459451 2021-08-24 2459458 2021-08-31 -7 SVO
59 8.7 2459780 2022-07-19 2459784 2022-07-23 -4 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.