Maxima for Z Sgr
Period: 452.20, Epoch: 2439302.8
AAVSO offset: -1

E Mag O (JD) O (dat) C (JD) C (Dat) O-C Source
-63   2410854 1888-08-04 2410814 1888-06-25 40 AnHar, 1909, vol 55, p 95
-59   2412683 1893-08-07 2412623 1893-06-08 60 AnHar, 1909, vol 55, p 95
-58   2413120 1894-10-18 2413075 1894-09-03 45 AnHar, 1909, vol 55, p 95
-55   2414492 1898-07-21 2414432 1898-05-22 60 AnHar, 1909, vol 55, p 95
-54   2414929 1899-10-01 2414884 1899-08-17 45 AnHar, 1909, vol 55, p 95
-51   2416280 1903-06-14 2416241 1903-05-06 39 AnHar, 1952, vol 115
-50   2416739 1904-09-15 2416693 1904-07-31 46 AnHar, 1909, vol 55, p 95
-46   2418515 1909-07-27 2418502 1909-07-14 13 AnHar, 1952, vol 115
-37 9.4 2422569 1920-09-01 2422571 1920-09-03 -2 SVO
-36   2423046 1921-12-22 2423024 1921-11-30 22 AAVSO
-35   2423498 1923-03-19 2423476 1923-02-25 22 AAVSO
-30   2425710 1929-04-08 2425737 1929-05-05 -27 AnHar, 1952, vol 115
-29   2426150 1930-06-22 2426189 1930-07-31 -39 AAVSO
-28 9.3 2426616 1931-10-01 2426641 1931-10-26 -25 SVO
-27 9.1 2427063 1932-12-21 2427093 1933-01-20 -30 SVO
-26   2427510 1934-03-13 2427546 1934-04-18 -36 AAVSO
-25 8.6 2427979 1935-06-25 2427998 1935-07-14 -19 AAVSO
-24   2428441 1936-09-29 2428450 1936-10-08 -9 AAVSO
-23   2428897 1937-12-29 2428902 1938-01-03 -5 AAVSO
-22   2429369 1939-04-15 2429354 1939-03-31 15 AAVSO
-21 8.8 2429821 1940-07-10 2429807 1940-06-26 14 AAVSO
-20 8.5 2430267 1941-09-29 2430259 1941-09-21 8 SVO
-19   2430681 1942-11-17 2430711 1942-12-17 -30 AAVSO
-14 10.2 2432963 1949-02-15 2432972 1949-02-24 -9 AAVSO
-13 8.8 2433421 1950-05-19 2433424 1950-05-22 -3 SVO
-12 10.5 2433878 1951-08-19 2433876 1951-08-17 2 SVO
-11 10.8 2434327 1952-11-10 2434329 1952-11-12 -2 AAVSO
-10 8.7 2434759 1954-01-16 2434781 1954-02-07 -22 SVO
-9 10.3 2435216 1955-04-18 2435233 1955-05-05 -17 SVO
-8 9.5 2435657 1956-07-02 2435685 1956-07-30 -28 SVO
-7 9.8 2436099 1957-09-17 2436137 1957-10-25 -38 SVO
-6 8.7 2436552 1958-12-14 2436590 1959-01-21 -38 SVO
-5 9.9 2437002 1960-03-08 2437042 1960-04-17 -40 SVO
-4 9.0 2437441 1961-05-21 2437494 1961-07-13 -53 SVO
-3 9.2 2437898 1962-08-21 2437946 1962-10-08 -48 SVO
-2 9.4 2438350 1963-11-16 2438398 1964-01-03 -48 SVO
-1 9.0 2438799 1965-02-07 2438851 1965-03-31 -52 AAVSO
0 9.4 2439257 1966-05-11 2439303 1966-06-26 -46 SVO
1 9.5 2439714 1967-08-11 2439755 1967-09-21 -41 SVO
2 10.0 2440156 1968-10-26 2440207 1968-12-16 -51 AAVSO
3   2440607 1970-01-20 2440659 1970-03-13 -52 AAVSO
4 8.7 2441076 1971-05-04 2441112 1971-06-09 -36 AAVSO
5 9.8 2441532 1972-08-02 2441564 1972-09-03 -32 SVO
6 9.2 2441968 1973-10-12 2442016 1973-11-29 -48 AAVSO
7   2442428 1975-01-15 2442468 1975-02-24 -40 AAVSO
8 9.2 2442892 1976-04-23 2442920 1976-05-21 -28 AAVSO
9 9.5 2443331 1977-07-06 2443373 1977-08-17 -42 SVO
10 9.2 2443782 1978-09-30 2443825 1978-11-12 -43 SVO
11   2444237 1979-12-29 2444277 1980-02-07 -40 AAVSO
12 9.4 2444709 1981-04-14 2444729 1981-05-04 -20 AAVSO
13 9.2 2445176 1982-07-25 2445181 1982-07-30 -5 SVO
14 9.8 2445625 1983-10-17 2445634 1983-10-26 -9 SVO
15 11.0 2446084 1985-01-18 2446086 1985-01-20 -2 AAVSO
16 10.3 2446559 1986-05-08 2446538 1986-04-17 21 SVO
17 9.0 2447011 1987-08-03 2446990 1987-07-13 21 SVO
18   2447471 1988-11-05 2447442 1988-10-07 29 AAVSO
19 8.5 2447897 1990-01-05 2447895 1990-01-03 2 SVO
20 8.9 2448394 1991-05-17 2448347 1991-03-31 47 SVO
21 9.7 2448845 1992-08-10 2448799 1992-06-25 46 SVO
22 8.8 2449299 1993-11-07 2449251 1993-09-20 48 SVO
23   2449749 1995-01-31 2449703 1994-12-16 46 AAVSO
24 9.5 2450218 1996-05-14 2450156 1996-03-13 62 SVO
25 8.9 2450668 1997-08-07 2450608 1997-06-08 60 SVO
26   2451116 1998-10-29 2451060 1998-09-03 56 AAVSO
27 9.4 2451566 2000-01-22 2451512 1999-11-29 54 SVO
28   2452044 2001-05-14 2451964 2001-02-23 80 AAVSO
29 8.7 2452467 2002-07-11 2452416 2002-05-21 51 SVO
30 11.2 2452911 2003-09-28 2452869 2003-08-17 42 SVO
31 10.2 2453366 2004-12-26 2453321 2004-11-11 45 SVO
32   2453817 2006-03-22 2453773 2006-02-06 44 AAVSO
33 8.5 2454260 2007-06-08 2454225 2007-05-04 35 SVO
34 10.3 2454700 2008-08-21 2454677 2008-07-29 23 SVO
35 9.3 2455143 2009-11-07 2455130 2009-10-25 13 SVO
36   2455593 2011-01-31 2455582 2011-01-20 11 AAVSO
37 8.8 2456035 2012-04-17 2456034 2012-04-16 1 SVO
38 10.4 2456490 2013-07-16 2456486 2013-07-12 4 SVO
39 9.5 2456935 2014-10-04 2456938 2014-10-07 -3 SVO
40 9.4 2457379 2015-12-22 2457391 2016-01-03 -12 SVO
41 9.2 2457826 2017-03-13 2457843 2017-03-30 -17 SVO
42 8.8 2458280 2018-06-10 2458295 2018-06-25 -15 SVO
43 10.1 2458720 2019-08-24 2458747 2019-09-20 -27 SVO
44 9.1 2459177 2020-11-23 2459199 2020-12-15 -22 SVO
45 10.2 2459631 2022-02-20 2459652 2022-03-13 -21 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.