Maxima for S Lyr
Period: 438.4, Epoch: 2454290
Back to main page  Mean light curve  Period diagram

E Mag O (JD) O (dat) C (JD) C (Dat) O-C Source
-94   2413086 1894-09-14 2413080 1894-09-08 6 AnHar, 1909, vol 55, p 95
-93   2413525 1895-11-27 2413519 1895-11-21 6 AnHar, 1909, vol 55, p 95
-92   2413986 1897-03-02 2413957 1897-02-01 29 AnHar, 1909, vol 55, p 95
-91   2414419 1898-05-09 2414396 1898-04-16 23 AnHar, 1909, vol 55, p 95
-90 9.8 2414849 1899-07-13 2414834 1899-06-28 15 SVO
-89   2415281 1900-09-18 2415272 1900-09-09 9 AnHar, 1909, vol 55, p 95
-88   2415745 1901-12-26 2415711 1901-11-22 34 AnHar, 1909, vol 55, p 95
-87   2416186 1903-03-12 2416149 1903-02-03 37 AnHar, 1909, vol 55, p 95
-86   2416624 1904-05-23 2416588 1904-04-17 36 AnHar, 1909, vol 55, p 95
-85 10.6 2417039 1905-07-12 2417026 1905-06-29 13 SVO
-84 9.9 2417470 1906-09-16 2417464 1906-09-10 6 AAVSO
-83 9.0 2417907 1907-11-27 2417903 1907-11-23 4 AAVSO
-82 9.7 2418335 1909-01-28 2418341 1909-02-03 -6 AAVSO
-81   2418790 1910-04-28 2418780 1910-04-18 10 AAVSO
-80 10.8 2419214 1911-06-26 2419218 1911-06-30 -4 SVO
-79 10.0 2419635 1912-08-20 2419656 1912-09-10 -21 SVO
-78 10.2 2420096 1913-11-24 2420095 1913-11-23 1 SVO
-76   2420962 1916-04-08 2420972 1916-04-18 -10 AAVSO
-75 10.2 2421403 1917-06-23 2421410 1917-06-30 -7 AAVSO
-74 10.2 2421853 1918-09-16 2421848 1918-09-11 5 AAVSO
-73 11.2 2422310 1919-12-17 2422287 1919-11-24 23 SVO
-72 11.3 2422748 1921-02-27 2422725 1921-02-04 23 AAVSO
-71 11.7 2423195 1922-05-20 2423164 1922-04-19 31 SVO
-70 12.1 2423642 1923-08-10 2423602 1923-07-01 40 SVO
-69 11.8 2424073 1924-10-14 2424040 1924-09-11 33 SVO
-68   2424510 1925-12-25 2424479 1925-11-24 31 AAVSO
-67   2424957 1927-03-17 2424917 1927-02-05 40 AAVSO
-66 12.2 2425426 1928-06-28 2425356 1928-04-19 70 AAVSO
-65 12.0 2425860 1929-09-05 2425794 1929-07-01 66 SVO
-64 11.7 2426315 1930-12-04 2426232 1930-09-12 83 SVO
-63 11.8 2426749 1932-02-11 2426671 1931-11-25 78 AAVSO
-62 11.6 2427190 1933-04-27 2427109 1933-02-05 81 SVO
-61 11.7 2427615 1934-06-26 2427548 1934-04-20 67 SVO
-60 12.0 2428052 1935-09-06 2427986 1935-07-02 66 SVO
-59 11.6 2428476 1936-11-03 2428424 1936-09-12 52 AAVSO
-58 11.8 2428911 1938-01-12 2428863 1937-11-25 48 AAVSO
-57   2429332 1939-03-09 2429301 1939-02-06 31 AAVSO
-56 11.3 2429769 1940-05-19 2429740 1940-04-20 29 SVO
-55 11.2 2430196 1941-07-20 2430178 1941-07-02 18 SVO
-54 11.3 2430636 1942-10-03 2430616 1942-09-13 20 AAVSO
-53 11.0 2431051 1943-11-22 2431055 1943-11-26 -4 AAVSO
-52   2431489 1945-02-02 2431493 1945-02-06 -4 AAVSO
-51 10.4 2431927 1946-04-16 2431932 1946-04-21 -5 AAVSO
-50 11.1 2432371 1947-07-04 2432370 1947-07-03 1 SVO
-49 10.7 2432809 1948-09-14 2432808 1948-09-13 1 SVO
-48 11.0 2433251 1949-11-30 2433247 1949-11-26 4 SVO
-47   2433702 1951-02-24 2433685 1951-02-07 17 AAVSO
-46 10.2 2434126 1952-04-23 2434124 1952-04-21 2 AAVSO
-45 10.8 2434569 1953-07-10 2434562 1953-07-03 7 SVO
-44 10.1 2435006 1954-09-20 2435000 1954-09-14 6 SVO
-43 10.4 2435447 1955-12-05 2435439 1955-11-27 8 SVO
-42   2435871 1957-02-01 2435877 1957-02-07 -6 AAVSO
-41 9.9 2436318 1958-04-24 2436316 1958-04-22 2 SVO
-40 9.7 2436745 1959-06-25 2436754 1959-07-04 -9 SVO
-39 11.6 2437192 1960-09-14 2437192 1960-09-14 0 SVO
-38 10.8 2437619 1961-11-15 2437631 1961-11-27 -12 SVO
-37   2438065 1963-02-04 2438069 1963-02-08 -4 AAVSO
-36 10.2 2438495 1964-04-09 2438508 1964-04-22 -13 AAVSO
-35 10.4 2438952 1965-07-10 2438946 1965-07-04 6 SVO
-34 10.1 2439384 1966-09-15 2439384 1966-09-15 0 SVO
-33 10.4 2439813 1967-11-18 2439823 1967-11-28 -10 SVO
-32 10.6 2440252 1969-01-30 2440261 1969-02-08 -9 AAVSO
-31 10.7 2440691 1970-04-14 2440700 1970-04-23 -9 AAVSO
-30 10.6 2441159 1971-07-26 2441138 1971-07-05 21 SVO
-29 11.2 2441587 1972-09-26 2441576 1972-09-15 11 SVO
-28 10.8 2442041 1973-12-24 2442015 1973-11-28 26 SVO
-27 11.1 2442473 1975-03-01 2442453 1975-02-09 20 SVO
-26 11.2 2442911 1976-05-12 2442892 1976-04-23 19 SVO
-25 11.4 2443370 1977-08-14 2443330 1977-07-05 40 SVO
-24 11.8 2443806 1978-10-24 2443768 1978-09-16 38 SVO
-23 11.4 2444245 1980-01-06 2444207 1979-11-29 38 AAVSO
-22 11.7 2444682 1981-03-18 2444645 1981-02-09 37 AAVSO
-21 11.8 2445126 1982-06-05 2445084 1982-04-24 42 SVO
-20 11.4 2445544 1983-07-28 2445522 1983-07-06 22 SVO
-19 11.3 2445991 1984-10-17 2445960 1984-09-16 31 SVO
-18 11.6 2446433 1986-01-02 2446399 1985-11-29 34 SVO
-17 11.1 2446850 1987-02-23 2446837 1987-02-10 13 SVO
-16 11.3 2447295 1988-05-13 2447276 1988-04-24 19 SVO
-15 11.4 2447724 1989-07-16 2447714 1989-07-06 10 SVO
-14 11.1 2448162 1990-09-27 2448152 1990-09-17 10 SVO
-13   2448598 1991-12-07 2448591 1991-11-30 7 AAVSO
-12   2449043 1993-02-24 2449029 1993-02-10 14 AAVSO
-11 10.9 2449475 1994-05-02 2449468 1994-04-25 7 SVO
-10 10.5 2449885 1995-06-16 2449906 1995-07-07 -21 SVO
-9 10.2 2450322 1996-08-26 2450344 1996-09-17 -22 SVO
-8 10.7 2450759 1997-11-06 2450783 1997-11-30 -24 SVO
-7 10.3 2451190 1999-01-11 2451221 1999-02-11 -31 SVO
-6 10.8 2451646 2000-04-11 2451660 2000-04-25 -14 SVO
-5   2452081 2001-06-20 2452098 2001-07-07 -17 AAVSO
-4 11.3 2452524 2002-09-06 2452536 2002-09-18 -12 SVO
-3 11.6 2452962 2003-11-18 2452975 2003-12-01 -13 SVO
-2   2453402 2005-01-31 2453413 2005-02-11 -11 AAVSO
-1 11.6 2453848 2006-04-22 2453852 2006-04-26 -4 SVO
0 11.5 2454286 2007-07-04 2454290 2007-07-08 -4 SVO
1 12.0 2454723 2008-09-13 2454728 2008-09-18 -5 SVO
2 11.6 2455152 2009-11-16 2455167 2009-12-01 -15 SVO
3 11.5 2455620 2011-02-27 2455605 2011-02-12 15 SVO
4 11.3 2456050 2012-05-02 2456044 2012-04-26 6 SVO
5 11.3 2456473 2013-06-29 2456482 2013-07-08 -9 SVO
6 11.2 2456894 2014-08-24 2456920 2014-09-19 -26 SVO
7 11.6 2457339 2015-11-12 2457359 2015-12-02 -20 SVO
8 11.4 2457780 2017-01-26 2457797 2017-02-12 -17 SVO
9 11.5 2458218 2018-04-09 2458236 2018-04-27 -18 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.