Maxima for S Lyr
Period: 438.05, Epoch: 2442898.0
AAVSO offset: 1

E Mag O (JD) O (dat) C (JD) C (Dat) O-C Source
-68   2413086 1894-09-14 2413111 1894-10-09 -25 AnHar, 1909, vol 55, p 95
-67   2413525 1895-11-27 2413549 1895-12-21 -24 AnHar, 1909, vol 55, p 95
-66   2413986 1897-03-02 2413987 1897-03-03 -1 AnHar, 1909, vol 55, p 95
-65   2414419 1898-05-09 2414425 1898-05-15 -6 AnHar, 1909, vol 55, p 95
-64 9.8 2414849 1899-07-13 2414863 1899-07-27 -14 SVO
-63   2415281 1900-09-18 2415301 1900-10-08 -20 AnHar, 1909, vol 55, p 95
-62   2415745 1901-12-26 2415739 1901-12-20 6 AnHar, 1909, vol 55, p 95
-61   2416186 1903-03-12 2416177 1903-03-03 9 AnHar, 1909, vol 55, p 95
-60   2416624 1904-05-23 2416615 1904-05-14 9 AnHar, 1909, vol 55, p 95
-59 10.6 2417039 1905-07-12 2417053 1905-07-26 -14 SVO
-58 9.9 2417470 1906-09-16 2417491 1906-10-07 -21 AAVSO
-57 9.0 2417907 1907-11-27 2417929 1907-12-19 -22 AAVSO
-56 9.7 2418335 1909-01-28 2418367 1909-03-01 -32 AAVSO
-55   2418790 1910-04-28 2418805 1910-05-13 -15 AAVSO
-54 10.8 2419214 1911-06-26 2419243 1911-07-25 -29 SVO
-53 10.0 2419635 1912-08-20 2419681 1912-10-05 -46 SVO
-52 10.2 2420096 1913-11-24 2420119 1913-12-17 -23 SVO
-50   2420962 1916-04-08 2420996 1916-05-12 -34 AAVSO
-49 10.2 2421403 1917-06-23 2421434 1917-07-24 -31 AAVSO
-48 10.2 2421853 1918-09-16 2421872 1918-10-05 -19 AAVSO
-47 11.2 2422310 1919-12-17 2422310 1919-12-17 0 SVO
-46 11.3 2422748 1921-02-27 2422748 1921-02-27 0 AAVSO
-45 11.7 2423195 1922-05-20 2423186 1922-05-11 9 SVO
-44 12.1 2423642 1923-08-10 2423624 1923-07-23 18 SVO
-43 11.8 2424073 1924-10-14 2424062 1924-10-03 11 SVO
-42   2424510 1925-12-25 2424500 1925-12-15 10 AAVSO
-41   2424957 1927-03-17 2424938 1927-02-26 19 AAVSO
-40 12.2 2425426 1928-06-28 2425376 1928-05-09 50 AAVSO
-39 12.0 2425860 1929-09-05 2425814 1929-07-21 46 SVO
-38 11.7 2426315 1930-12-04 2426252 1930-10-02 63 SVO
-37 11.8 2426749 1932-02-11 2426690 1931-12-14 59 AAVSO
-36 11.6 2427190 1933-04-27 2427128 1933-02-24 62 SVO
-35 11.7 2427615 1934-06-26 2427566 1934-05-08 49 SVO
-34 12.0 2428052 1935-09-06 2428004 1935-07-20 48 SVO
-33 11.6 2428476 1936-11-03 2428442 1936-09-30 34 AAVSO
-32 11.8 2428911 1938-01-12 2428880 1937-12-12 31 AAVSO
-31   2429332 1939-03-09 2429318 1939-02-23 14 AAVSO
-30 11.3 2429769 1940-05-19 2429757 1940-05-07 12 SVO
-29 11.2 2430196 1941-07-20 2430195 1941-07-19 1 SVO
-28 11.3 2430636 1942-10-03 2430633 1942-09-30 3 AAVSO
-27 11.0 2431051 1943-11-22 2431071 1943-12-12 -20 AAVSO
-26   2431489 1945-02-02 2431509 1945-02-22 -20 AAVSO
-25 10.4 2431927 1946-04-16 2431947 1946-05-06 -20 AAVSO
-24 11.1 2432371 1947-07-04 2432385 1947-07-18 -14 SVO
-23 10.7 2432809 1948-09-14 2432823 1948-09-28 -14 SVO
-22 11.0 2433251 1949-11-30 2433261 1949-12-10 -10 SVO
-21   2433702 1951-02-24 2433699 1951-02-21 3 AAVSO
-20 10.2 2434126 1952-04-23 2434137 1952-05-04 -11 AAVSO
-19 10.8 2434569 1953-07-10 2434575 1953-07-16 -6 SVO
-18 10.1 2435006 1954-09-20 2435013 1954-09-27 -7 SVO
-17 10.4 2435447 1955-12-05 2435451 1955-12-09 -4 SVO
-16   2435871 1957-02-01 2435889 1957-02-19 -18 AAVSO
-15 9.9 2436318 1958-04-24 2436327 1958-05-03 -9 SVO
-14 9.7 2436745 1959-06-25 2436765 1959-07-15 -20 SVO
-13 11.6 2437192 1960-09-14 2437203 1960-09-25 -11 SVO
-12 10.8 2437619 1961-11-15 2437641 1961-12-07 -22 SVO
-11   2438065 1963-02-04 2438079 1963-02-18 -14 AAVSO
-10 10.2 2438495 1964-04-09 2438517 1964-05-01 -22 AAVSO
-9 10.4 2438952 1965-07-10 2438956 1965-07-14 -4 SVO
-8 10.1 2439384 1966-09-15 2439394 1966-09-25 -10 SVO
-7 10.4 2439813 1967-11-18 2439832 1967-12-07 -19 SVO
-6 10.6 2440252 1969-01-30 2440270 1969-02-17 -18 AAVSO
-5 10.7 2440691 1970-04-14 2440708 1970-05-01 -17 AAVSO
-4 10.6 2441159 1971-07-26 2441146 1971-07-13 13 SVO
-3 11.2 2441587 1972-09-26 2441584 1972-09-23 3 SVO
-2 10.8 2442041 1973-12-24 2442022 1973-12-05 19 SVO
-1 11.1 2442473 1975-03-01 2442460 1975-02-16 13 SVO
0 11.2 2442911 1976-05-12 2442898 1976-04-29 13 SVO
1 11.4 2443370 1977-08-14 2443336 1977-07-11 34 SVO
2 11.8 2443806 1978-10-24 2443774 1978-09-22 32 SVO
3 11.4 2444245 1980-01-06 2444212 1979-12-04 33 AAVSO
4 11.7 2444682 1981-03-18 2444650 1981-02-14 32 AAVSO
5 11.8 2445126 1982-06-05 2445088 1982-04-28 38 SVO
6 11.4 2445544 1983-07-28 2445526 1983-07-10 18 SVO
7 11.3 2445991 1984-10-17 2445964 1984-09-20 27 SVO
8 11.6 2446433 1986-01-02 2446402 1985-12-02 31 SVO
9 11.1 2446850 1987-02-23 2446840 1987-02-13 10 SVO
10 11.3 2447295 1988-05-13 2447278 1988-04-26 17 SVO
11 11.4 2447724 1989-07-16 2447717 1989-07-09 7 SVO
12 11.1 2448162 1990-09-27 2448155 1990-09-20 7 SVO
13   2448598 1991-12-07 2448593 1991-12-02 5 AAVSO
14   2449043 1993-02-24 2449031 1993-02-12 12 AAVSO
15 10.9 2449475 1994-05-02 2449469 1994-04-26 6 SVO
16 10.5 2449885 1995-06-16 2449907 1995-07-08 -22 SVO
17 10.2 2450322 1996-08-26 2450345 1996-09-18 -23 SVO
18 10.7 2450759 1997-11-06 2450783 1997-11-30 -24 SVO
19 10.3 2451190 1999-01-11 2451221 1999-02-11 -31 SVO
20 10.8 2451646 2000-04-11 2451659 2000-04-24 -13 SVO
21   2452081 2001-06-20 2452097 2001-07-06 -16 AAVSO
22 11.3 2452524 2002-09-06 2452535 2002-09-17 -11 SVO
23 11.6 2452962 2003-11-18 2452973 2003-11-29 -11 SVO
24   2453402 2005-01-31 2453411 2005-02-09 -9 AAVSO
25 11.6 2453848 2006-04-22 2453849 2006-04-23 -1 SVO
26 11.5 2454286 2007-07-04 2454287 2007-07-05 -1 SVO
27 12.0 2454723 2008-09-13 2454725 2008-09-15 -2 SVO
28 11.6 2455152 2009-11-16 2455163 2009-11-27 -11 SVO
29 11.5 2455620 2011-02-27 2455601 2011-02-08 19 SVO
30 11.3 2456050 2012-05-02 2456039 2012-04-21 11 SVO
31 11.3 2456473 2013-06-29 2456478 2013-07-04 -5 SVO
32 11.2 2456894 2014-08-24 2456916 2014-09-15 -22 SVO
33 11.6 2457339 2015-11-12 2457354 2015-11-27 -15 SVO
34 11.4 2457780 2017-01-26 2457792 2017-02-07 -12 SVO
35 11.5 2458218 2018-04-09 2458230 2018-04-21 -12 SVO
36 11.4 2458654 2019-06-19 2458668 2019-07-03 -14 SVO
37 11.5 2459091 2020-08-29 2459106 2020-09-13 -15 SVO
38 10.9 2459532 2021-11-13 2459544 2021-11-25 -12 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.