Maxima for S Lyr
Period: 438.4, Epoch: 2442924
Back to main page  Mean light curve  Period diagram

E Mag O (JD) O (dat) C (JD) C (Dat) O-C Source
-68   2413086 1894-09-14 2413113 1894-10-11 -27 AnHar, 1909, vol 55, p 95
-67   2413525 1895-11-27 2413551 1895-12-23 -26 AnHar, 1909, vol 55, p 95
-66   2413986 1897-03-02 2413990 1897-03-06 -4 AnHar, 1909, vol 55, p 95
-65   2414419 1898-05-09 2414428 1898-05-18 -9 AnHar, 1909, vol 55, p 95
-64 9.8 2414849 1899-07-13 2414866 1899-07-30 -17 SVO
-63   2415281 1900-09-18 2415305 1900-10-12 -24 AnHar, 1909, vol 55, p 95
-62   2415745 1901-12-26 2415743 1901-12-24 2 AnHar, 1909, vol 55, p 95
-61   2416186 1903-03-12 2416182 1903-03-08 4 AnHar, 1909, vol 55, p 95
-60   2416624 1904-05-23 2416620 1904-05-19 4 AnHar, 1909, vol 55, p 95
-59 10.6 2417039 1905-07-12 2417058 1905-07-31 -19 SVO
-58 9.9 2417470 1906-09-16 2417497 1906-10-13 -27 AAVSO
-57 9.0 2417907 1907-11-27 2417935 1907-12-25 -28 AAVSO
-56 9.7 2418335 1909-01-28 2418374 1909-03-08 -39 AAVSO
-55   2418790 1910-04-28 2418812 1910-05-20 -22 AAVSO
-54 10.8 2419214 1911-06-26 2419250 1911-08-01 -36 SVO
-53 10.0 2419635 1912-08-20 2419689 1912-10-13 -54 SVO
-52 10.2 2420096 1913-11-24 2420127 1913-12-25 -31 SVO
-50   2420962 1916-04-08 2421004 1916-05-20 -42 AAVSO
-49 10.2 2421403 1917-06-23 2421442 1917-08-01 -39 AAVSO
-48 10.2 2421853 1918-09-16 2421881 1918-10-14 -28 AAVSO
-47 11.2 2422310 1919-12-17 2422319 1919-12-26 -9 SVO
-46 11.3 2422748 1921-02-27 2422758 1921-03-09 -10 AAVSO
-45 11.7 2423195 1922-05-20 2423196 1922-05-21 -1 SVO
-44 12.1 2423642 1923-08-10 2423634 1923-08-02 8 SVO
-43 11.8 2424073 1924-10-14 2424073 1924-10-14 0 SVO
-42   2424510 1925-12-25 2424511 1925-12-26 -1 AAVSO
-41   2424957 1927-03-17 2424950 1927-03-10 7 AAVSO
-40 12.2 2425426 1928-06-28 2425388 1928-05-21 38 AAVSO
-39 12.0 2425860 1929-09-05 2425826 1929-08-02 34 SVO
-38 11.7 2426315 1930-12-04 2426265 1930-10-15 50 SVO
-37 11.8 2426749 1932-02-11 2426703 1931-12-27 46 AAVSO
-36 11.6 2427190 1933-04-27 2427142 1933-03-10 48 SVO
-35 11.7 2427615 1934-06-26 2427580 1934-05-22 35 SVO
-34 12.0 2428052 1935-09-06 2428018 1935-08-03 34 SVO
-33 11.6 2428476 1936-11-03 2428457 1936-10-15 19 AAVSO
-32 11.8 2428911 1938-01-12 2428895 1937-12-27 16 AAVSO
-31   2429332 1939-03-09 2429334 1939-03-11 -2 AAVSO
-30 11.3 2429769 1940-05-19 2429772 1940-05-22 -3 SVO
-29 11.2 2430196 1941-07-20 2430210 1941-08-03 -14 SVO
-28 11.3 2430636 1942-10-03 2430649 1942-10-16 -13 AAVSO
-27 11.0 2431051 1943-11-22 2431087 1943-12-28 -36 AAVSO
-26   2431489 1945-02-02 2431526 1945-03-11 -37 AAVSO
-25 10.4 2431927 1946-04-16 2431964 1946-05-23 -37 AAVSO
-24 11.1 2432371 1947-07-04 2432402 1947-08-04 -31 SVO
-23 10.7 2432809 1948-09-14 2432841 1948-10-16 -32 SVO
-22 11.0 2433251 1949-11-30 2433279 1949-12-28 -28 SVO
-21   2433702 1951-02-24 2433718 1951-03-12 -16 AAVSO
-20 10.2 2434126 1952-04-23 2434156 1952-05-23 -30 AAVSO
-19 10.8 2434569 1953-07-10 2434594 1953-08-04 -25 SVO
-18 10.1 2435006 1954-09-20 2435033 1954-10-17 -27 SVO
-17 10.4 2435447 1955-12-05 2435471 1955-12-29 -24 SVO
-16   2435871 1957-02-01 2435910 1957-03-12 -39 AAVSO
-15 9.9 2436318 1958-04-24 2436348 1958-05-24 -30 SVO
-14 9.7 2436745 1959-06-25 2436786 1959-08-05 -41 SVO
-13 11.6 2437192 1960-09-14 2437225 1960-10-17 -33 SVO
-12 10.8 2437619 1961-11-15 2437663 1961-12-29 -44 SVO
-11   2438065 1963-02-04 2438102 1963-03-13 -37 AAVSO
-10 10.2 2438495 1964-04-09 2438540 1964-05-24 -45 AAVSO
-9 10.4 2438952 1965-07-10 2438978 1965-08-05 -26 SVO
-8 10.1 2439384 1966-09-15 2439417 1966-10-18 -33 SVO
-7 10.4 2439813 1967-11-18 2439855 1967-12-30 -42 SVO
-6 10.6 2440252 1969-01-30 2440294 1969-03-13 -42 AAVSO
-5 10.7 2440691 1970-04-14 2440732 1970-05-25 -41 AAVSO
-4 10.6 2441159 1971-07-26 2441170 1971-08-06 -11 SVO
-3 11.2 2441587 1972-09-26 2441609 1972-10-18 -22 SVO
-2 10.8 2442041 1973-12-24 2442047 1973-12-30 -6 SVO
-1 11.1 2442473 1975-03-01 2442486 1975-03-14 -13 SVO
0 11.2 2442911 1976-05-12 2442924 1976-05-25 -13 SVO
1 11.4 2443370 1977-08-14 2443362 1977-08-06 8 SVO
2 11.8 2443806 1978-10-24 2443801 1978-10-19 5 SVO
3 11.4 2444245 1980-01-06 2444239 1979-12-31 6 AAVSO
4 11.7 2444682 1981-03-18 2444678 1981-03-14 4 AAVSO
5 11.8 2445126 1982-06-05 2445116 1982-05-26 10 SVO
6 11.4 2445544 1983-07-28 2445554 1983-08-07 -10 SVO
7 11.3 2445991 1984-10-17 2445993 1984-10-19 -2 SVO
8 11.6 2446433 1986-01-02 2446431 1985-12-31 2 SVO
9 11.1 2446850 1987-02-23 2446870 1987-03-15 -20 SVO
10 11.3 2447295 1988-05-13 2447308 1988-05-26 -13 SVO
11 11.4 2447724 1989-07-16 2447746 1989-08-07 -22 SVO
12 11.1 2448162 1990-09-27 2448185 1990-10-20 -23 SVO
13   2448598 1991-12-07 2448623 1992-01-01 -25 AAVSO
14   2449043 1993-02-24 2449062 1993-03-15 -19 AAVSO
15 10.9 2449475 1994-05-02 2449500 1994-05-27 -25 SVO
16 10.5 2449885 1995-06-16 2449938 1995-08-08 -53 SVO
17 10.2 2450322 1996-08-26 2450377 1996-10-20 -55 SVO
18 10.7 2450759 1997-11-06 2450815 1998-01-01 -56 SVO
19 10.3 2451190 1999-01-11 2451254 1999-03-16 -64 SVO
20 10.8 2451646 2000-04-11 2451692 2000-05-27 -46 SVO
21   2452081 2001-06-20 2452130 2001-08-08 -49 AAVSO
22 11.3 2452524 2002-09-06 2452569 2002-10-21 -45 SVO
23 11.6 2452962 2003-11-18 2453007 2004-01-02 -45 SVO
24   2453402 2005-01-31 2453446 2005-03-16 -44 AAVSO
25 11.6 2453848 2006-04-22 2453884 2006-05-28 -36 SVO
26 11.5 2454286 2007-07-04 2454322 2007-08-09 -36 SVO
27 12.0 2454723 2008-09-13 2454761 2008-10-21 -38 SVO
28 11.6 2455152 2009-11-16 2455199 2010-01-02 -47 SVO
29 11.5 2455620 2011-02-27 2455638 2011-03-17 -18 SVO
30 11.3 2456050 2012-05-02 2456076 2012-05-28 -26 SVO
31 11.3 2456473 2013-06-29 2456514 2013-08-09 -41 SVO
32 11.2 2456894 2014-08-24 2456953 2014-10-22 -59 SVO
33 11.6 2457339 2015-11-12 2457391 2016-01-03 -52 SVO
34 11.4 2457780 2017-01-26 2457830 2017-03-17 -50 SVO
35 11.5 2458218 2018-04-09 2458268 2018-05-29 -50 SVO
36 11.4 2458654 2019-06-19 2458706 2019-08-10 -52 SVO
37 11.5 2459091 2020-08-29 2459145 2020-10-22 -54 SVO
38 10.9 2459532 2021-11-13 2459583 2022-01-03 -51 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.