Maxima for SY Aql
Period: 355.92, Epoch: 2442651
Back to main page  Mean light curve  Period diagram

E Mag O (JD) O (dat) C (JD) C (Dat) O-C Source
-85   2412375 1892-10-03 2412398 1892-10-26 -23 SVO
-84   2412744 1893-10-07 2412754 1893-10-17 -10 AnHar, 1909, vol 55, p 95
-81   2413832 1896-09-29 2413821 1896-09-18 11 AnHar, 1909, vol 55, p 95
-80   2414177 1897-09-09 2414177 1897-09-09 0 AnHar, 1909, vol 55, p 95
-79   2414545 1898-09-12 2414533 1898-08-31 12 AnHar, 1909, vol 55, p 95
-77   2415262 1900-08-30 2415245 1900-08-13 17 AnHar, 1909, vol 55, p 95
-76   2415623 1901-08-26 2415601 1901-08-04 22 AnHar, 1909, vol 55, p 95
-75   2415968 1902-08-06 2415957 1902-07-26 11 AnHar, 1909, vol 55, p 95
-74   2416315 1903-07-19 2416313 1903-07-17 2 AnHar, 1909, vol 55, p 95
-73   2416663 1904-07-01 2416669 1904-07-07 -6 SVO
-72   2417020 1905-06-23 2417025 1905-06-28 -5 AnHar, 1909, vol 55, p 95
-71   2417368 1906-06-06 2417381 1906-06-19 -13 SVO
-70   2417732 1907-06-05 2417737 1907-06-10 -5 AAVSO
-69   2418090 1908-05-28 2418093 1908-05-31 -3 SVO
-68   2418450 1909-05-23 2418448 1909-05-21 2 SVO
-67   2418831 1910-06-08 2418804 1910-05-12 27 AAVSO
-66   2419190 1911-06-02 2419160 1911-05-03 30 AAVSO
-65   2419530 1912-05-07 2419516 1912-04-23 14 SVO
-63 10.0 2420238 1914-04-15 2420228 1914-04-05 10 AAVSO
-62   2420588 1915-03-31 2420584 1915-03-27 4 AAVSO
-61   2420948 1916-03-25 2420940 1916-03-17 8 AAVSO
-60 8.8 2421324 1917-04-05 2421296 1917-03-08 28 AAVSO
-59 9.7 2421657 1918-03-04 2421652 1918-02-27 5 AAVSO
-58   2422035 1919-03-17 2422008 1919-02-18 27 AAVSO
-57 9.8 2422400 1920-03-16 2422364 1920-02-09 36 AAVSO
-56 9.9 2422778 1921-03-29 2422719 1921-01-29 59 AAVSO
-55 8.8 2423104 1922-02-18 2423075 1922-01-20 29 SVO
-54 8.8 2423464 1923-02-13 2423431 1923-01-11 33 SVO
-53 8.9 2423819 1924-02-03 2423787 1924-01-02 32 SVO
-52 9.9 2424187 1925-02-05 2424143 1924-12-23 44 SVO
-51 8.8 2424522 1926-01-06 2424499 1925-12-14 23 SVO
-50 10.3 2424892 1927-01-11 2424855 1926-12-05 37 SVO
-49 9.6 2425242 1927-12-27 2425211 1927-11-26 31 SVO
-48 9.4 2425591 1928-12-10 2425567 1928-11-16 24 SVO
-47 9.6 2425943 1929-11-27 2425923 1929-11-07 20 SVO
-46 10.1 2426297 1930-11-16 2426279 1930-10-29 18 SVO
-45 9.5 2426644 1931-10-29 2426635 1931-10-20 9 SVO
-44 9.3 2427000 1932-10-19 2426991 1932-10-10 9 SVO
-43 10.3 2427348 1933-10-02 2427346 1933-09-30 2 SVO
-42 9.1 2427699 1934-09-18 2427702 1934-09-21 -3 SVO
-41 9.9 2428052 1935-09-06 2428058 1935-09-12 -6 SVO
-40 9.8 2428407 1936-08-26 2428414 1936-09-02 -7 AAVSO
-39 8.6 2428745 1937-07-30 2428770 1937-08-24 -25 SVO
-38 9.9 2429120 1938-08-09 2429126 1938-08-15 -6 SVO
-37 10.3 2429480 1939-08-04 2429482 1939-08-06 -2 SVO
-36 9.6 2429823 1940-07-12 2429838 1940-07-27 -15 AAVSO
-35 9.1 2430165 1941-06-19 2430194 1941-07-18 -29 AAVSO
-34 10.7 2430530 1942-06-19 2430550 1942-07-09 -20 AAVSO
-33 9.4 2430894 1943-06-18 2430906 1943-06-30 -12 SVO
-32 9.8 2431242 1944-05-31 2431262 1944-06-20 -20 SVO
-31   2431616 1945-06-09 2431617 1945-06-10 -1 SVO
-30   2431965 1946-05-24 2431973 1946-06-01 -8 SVO
-29 10.0 2432321 1947-05-15 2432329 1947-05-23 -8 AAVSO
-28 9.3 2432669 1948-04-27 2432685 1948-05-13 -16 AAVSO
-27 9.1 2433027 1949-04-20 2433041 1949-05-04 -14 AAVSO
-26 10.9 2433376 1950-04-04 2433397 1950-04-25 -21 AAVSO
-25 10.8 2433739 1951-04-02 2433753 1951-04-16 -14 AAVSO
-24 9.8 2434091 1952-03-19 2434109 1952-04-06 -18 AAVSO
-23 10.3 2434446 1953-03-09 2434465 1953-03-28 -19 AAVSO
-22   2434805 1954-03-03 2434821 1954-03-19 -16 AAVSO
-21   2435164 1955-02-25 2435177 1955-03-10 -13 AAVSO
-20   2435521 1956-02-17 2435533 1956-02-29 -12 AAVSO
-19 9.4 2435876 1957-02-06 2435889 1957-02-19 -13 AAVSO
-18 9.5 2436233 1958-01-29 2436244 1958-02-09 -11 AAVSO
-17 10.1 2436594 1959-01-25 2436600 1959-01-31 -6 AAVSO
-16   2436957 1960-01-23 2436956 1960-01-22 1 AAVSO
-15   2437313 1961-01-13 2437312 1961-01-12 1 AAVSO
-14 10.8 2437672 1962-01-07 2437668 1962-01-03 4 AAVSO
-13 9.9 2438035 1963-01-05 2438024 1962-12-25 11 SVO
-12 10.3 2438407 1964-01-12 2438380 1963-12-16 27 SVO
-11 9.7 2438754 1964-12-24 2438736 1964-12-06 18 SVO
-10 10.9 2439094 1965-11-29 2439092 1965-11-27 2 SVO
-9 10.4 2439447 1966-11-17 2439448 1966-11-18 -1 SVO
-8 9.1 2439799 1967-11-04 2439804 1967-11-09 -5 SVO
-7 8.5 2440158 1968-10-28 2440160 1968-10-30 -2 AAVSO
-6 10.5 2440516 1969-10-21 2440515 1969-10-20 1 SVO
-5 10.7 2440857 1970-09-27 2440871 1970-10-11 -14 SVO
-4 9.5 2441215 1971-09-20 2441227 1971-10-02 -12 SVO
-3 10.5 2441566 1972-09-05 2441583 1972-09-22 -17 SVO
-2 10.1 2441931 1973-09-05 2441939 1973-09-13 -8 SVO
-1 10.1 2442272 1974-08-12 2442295 1974-09-04 -23 SVO
0 9.3 2442641 1975-08-16 2442651 1975-08-26 -10 SVO
1 9.9 2443003 1976-08-12 2443007 1976-08-16 -4 SVO
2 11.3 2443354 1977-07-29 2443363 1977-08-07 -9 AAVSO
3 10.3 2443720 1978-07-30 2443719 1978-07-29 1 SVO
4 10.1 2444068 1979-07-13 2444075 1979-07-20 -7 SVO
5 9.7 2444423 1980-07-02 2444431 1980-07-10 -8 SVO
6 10.1 2444778 1981-06-22 2444787 1981-07-01 -9 SVO
7 10.7 2445156 1982-07-05 2445142 1982-06-21 14 SVO
8 10.4 2445503 1983-06-17 2445498 1983-06-12 5 SVO
9 10.8 2445849 1984-05-28 2445854 1984-06-02 -5 AAVSO
10 10.2 2446200 1985-05-14 2446210 1985-05-24 -10 SVO
11 10.1 2446543 1986-04-22 2446566 1986-05-15 -23 AAVSO
12 10.2 2446907 1987-04-21 2446922 1987-05-06 -15 SVO
13   2447262 1988-04-10 2447278 1988-04-26 -16 AAVSO
14 9.4 2447608 1989-03-22 2447634 1989-04-17 -26 SVO
15 11.0 2447992 1990-04-10 2447990 1990-04-08 2 SVO
16   2448341 1991-03-25 2448346 1991-03-30 -5 AAVSO
17   2448684 1992-03-02 2448702 1992-03-20 -18 AAVSO
18 9.8 2449046 1993-02-27 2449058 1993-03-11 -12 SVO
19 9.4 2449396 1994-02-12 2449413 1994-03-01 -17 SVO
20   2449762 1995-02-13 2449769 1995-02-20 -7 AAVSO
21   2450133 1996-02-19 2450125 1996-02-11 8 AAVSO
22 9.9 2450475 1997-01-26 2450481 1997-02-01 -6 SVO
23 9.8 2450834 1998-01-20 2450837 1998-01-23 -3 SVO
24 10.4 2451194 1999-01-15 2451193 1999-01-14 1 SVO
25 9.9 2451549 2000-01-05 2451549 2000-01-05 0 SVO
26 10.4 2451910 2000-12-31 2451905 2000-12-26 5 SVO
27 10.0 2452265 2001-12-21 2452261 2001-12-17 4 SVO
28 9.4 2452621 2002-12-12 2452617 2002-12-08 4 SVO
29 10.7 2452979 2003-12-05 2452973 2003-11-29 6 SVO
30 9.8 2453321 2004-11-11 2453329 2004-11-19 -8 SVO
31 10.2 2453679 2005-11-04 2453685 2005-11-10 -6 SVO
32 9.9 2454037 2006-10-28 2454040 2006-10-31 -3 SVO
33 9.6 2454391 2007-10-17 2454396 2007-10-22 -5 SVO
34 10.0 2454741 2008-10-01 2454752 2008-10-12 -11 SVO
35 9.5 2455106 2009-10-01 2455108 2009-10-03 -2 SVO
36 10.4 2455459 2010-09-19 2455464 2010-09-24 -5 SVO
37 9.7 2455826 2011-09-21 2455820 2011-09-15 6 SVO
38 9.5 2456188 2012-09-17 2456176 2012-09-05 12 SVO
39 9.9 2456554 2013-09-18 2456532 2013-08-27 22 SVO
40 9.9 2456901 2014-08-31 2456888 2014-08-18 13 SVO
41 8.9 2457255 2015-08-20 2457244 2015-08-09 11 SVO
42 10.7 2457611 2016-08-10 2457600 2016-07-30 11 SVO
43 10.8 2457972 2017-08-06 2457956 2017-07-21 16 SVO
44 10.2 2458323 2018-07-23 2458311 2018-07-11 12 SVO
45 9.9 2458696 2019-07-31 2458667 2019-07-02 29 SVO
46 10.3 2459049 2020-07-18 2459023 2020-06-22 26 SVO
47 9.7 2459405 2021-07-09 2459379 2021-06-13 26 SVO
48 9.4 2459768 2022-07-07 2459735 2022-06-04 33 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.