Maxima for FF Cyg
Period: 324.57, Epoch: 2444488.5

E Mag O (JD) O (dat) C (JD) C (Dat) O-C Source
-58   2425673 1929-03-02 2425664 1929-02-21 9 KVeBB, 1941, vol 6, p 4, AN, 1929, vol 236, p 115
-55   2426676 1931-11-30 2426637 1931-10-22 39 KVeBB, 1941, vol 6, p 4
-54   2426991 1932-10-10 2426962 1932-09-11 29 AN, 1936, vol 259, p 101
-53   2427315 1933-08-30 2427286 1933-08-01 29 AN, 1936, vol 259, p 101, KVeBB, 1941, vol 6, p 4
-52   2427635 1934-07-16 2427611 1934-06-22 24 AN, 1936, vol 259, p 101
-51 9.9 2427970 1935-06-16 2427935 1935-05-12 35 SVO
-44   2430264 1941-09-26 2430207 1941-07-31 57 GuL, 1957, 2.4
-18   2438664 1964-09-25 2438646 1964-09-07 18 MitVS, 1967, vol 4, p 150
-17   2438974 1965-08-01 2438971 1965-07-29 3 MitVS, 1967, vol 4, p 150
-16   2439313 1966-07-06 2439295 1966-06-18 18 MitVS, 1967, vol 4, p 150
-12   2440610 1970-01-23 2440594 1970-01-07 16 SVO
-11   2440920 1970-11-29 2440918 1970-11-27 2 SVO
-10 10.0 2441265 1971-11-09 2441243 1971-10-18 22 SVO
-9 9.5 2441557 1972-08-27 2441567 1972-09-06 -10 SVO
-8 9.6 2441878 1973-07-14 2441892 1973-07-28 -14 SVO
-7   2442190 1974-05-22 2442217 1974-06-18 -27 SVO
-5   2442835 1976-02-26 2442866 1976-03-28 -31 SVO
-4   2443175 1977-01-31 2443190 1977-02-15 -15 SVO
-3   2443475 1977-11-27 2443515 1978-01-06 -40 SVO
-2 9.4 2443818 1978-11-05 2443839 1978-11-26 -21 SVO
-1 9.5 2444136 1979-09-19 2444164 1979-10-17 -28 SVO
0 9.6 2444463 1980-08-11 2444488 1980-09-05 -25 SVO
1 9.5 2444781 1981-06-25 2444813 1981-07-27 -32 SVO
2 9.7 2445108 1982-05-18 2445138 1982-06-17 -30 SVO
3 9.3 2445425 1983-03-31 2445462 1983-05-07 -37 SVO
4 9.5 2445751 1984-02-20 2445787 1984-03-27 -36 SVO
5 9.4 2446077 1985-01-11 2446111 1985-02-14 -34 SVO
6 9.6 2446408 1985-12-08 2446436 1986-01-05 -28 SVO
7 9.5 2446725 1986-10-21 2446760 1986-11-25 -35 SVO
8 9.5 2447061 1987-09-22 2447085 1987-10-16 -24 SVO
9 9.6 2447391 1988-08-17 2447410 1988-09-05 -19 SVO
10 9.7 2447711 1989-07-03 2447734 1989-07-26 -23 SVO
11 9.8 2448032 1990-05-20 2448059 1990-06-16 -27 SVO
12   2448360 1991-04-13 2448383 1991-05-06 -23 SVO
13   2448675 1992-02-22 2448708 1992-03-26 -33 SVO
14 9.7 2449004 1993-01-16 2449032 1993-02-13 -28 SVO
15 9.9 2449348 1993-12-26 2449357 1994-01-04 -9 SVO
16 9.6 2449668 1994-11-11 2449682 1994-11-25 -14 SVO
17 9.6 2449989 1995-09-28 2450006 1995-10-15 -17 SVO
18 9.7 2450313 1996-08-17 2450331 1996-09-04 -18 SVO
19 9.7 2450642 1997-07-12 2450655 1997-07-25 -13 SVO
20 9.6 2450971 1998-06-06 2450980 1998-06-15 -9 SVO
21 9.7 2451302 1999-05-03 2451304 1999-05-05 -2 SVO
22 10.0 2451641 2000-04-06 2451629 2000-03-25 12 SVO
23 9.6 2451941 2001-01-31 2451954 2001-02-13 -13 SVO
24 9.6 2452270 2001-12-26 2452278 2002-01-03 -8 SVO
25 9.6 2452600 2002-11-21 2452603 2002-11-24 -3 SVO
26 9.8 2452937 2003-10-24 2452927 2003-10-14 10 SVO
27 9.6 2453245 2004-08-27 2453252 2004-09-03 -7 SVO
28 9.7 2453581 2005-07-29 2453576 2005-07-24 5 SVO
29 9.7 2453905 2006-06-18 2453901 2006-06-14 4 SVO
30 9.7 2454232 2007-05-11 2454226 2007-05-05 6 SVO
31 9.7 2454561 2008-04-04 2454550 2008-03-24 11 SVO
32 9.9 2454901 2009-03-10 2454875 2009-02-12 26 SVO
33 9.4 2455211 2010-01-14 2455199 2010-01-02 12 SVO
34 9.6 2455547 2010-12-16 2455524 2010-11-23 23 SVO
35 9.5 2455864 2011-10-29 2455848 2011-10-13 16 SVO
36 9.8 2456193 2012-09-22 2456173 2012-09-02 20 SVO
37 9.9 2456523 2013-08-18 2456498 2013-07-24 25 SVO
38 9.6 2456852 2014-07-13 2456822 2014-06-13 30 SVO
39 9.5 2457165 2015-05-22 2457147 2015-05-04 18 SVO
40 9.6 2457499 2016-04-20 2457471 2016-03-23 28 SVO
41 9.7 2457823 2017-03-10 2457796 2017-02-11 27 SVO
42   2458150 2018-01-31 2458120 2018-01-01 30 SVO
43 9.8 2458476 2018-12-23 2458445 2018-11-22 31 SVO
44 9.7 2458785 2019-10-28 2458770 2019-10-13 15 SVO
45 9.5 2459121 2020-09-28 2459094 2020-09-01 27 SVO
46 9.9 2459451 2021-08-24 2459419 2021-07-23 32 SVO
47 9.4 2459767 2022-07-06 2459743 2022-06-12 24 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.