Maxima for Y Lib
Period: 275.84, Epoch: 2444035.6
AAVSO offset: -5

E Mag O (JD) O (dat) C (JD) C (Dat) O-C Source
-117   2411790 1891-02-26 2411762 1891-01-29 28 SVO
-114   2412648 1893-07-03 2412590 1893-05-06 58 AnHar, 1909, vol 55, p 95
-113   2412895 1894-03-07 2412866 1894-02-06 29 SVO
-111   2413459 1895-09-22 2413417 1895-08-11 42 AnHar, 1909, vol 55, p 95
-110   2413719 1896-06-08 2413693 1896-05-13 26 AnHar, 1909, vol 55, p 95
-109   2414010 1897-03-26 2413969 1897-02-13 41 AnHar, 1909, vol 55, p 95
-106   2414832 1899-06-26 2414796 1899-05-21 36 SVO
-105   2415111 1900-04-01 2415072 1900-02-21 39 SVO
-102   2415937 1902-07-06 2415900 1902-05-30 37 SVO
-101   2416220 1903-04-15 2416176 1903-03-02 44 AnHar, 1952, vol 115
-98   2417034 1905-07-07 2417003 1905-06-06 31 AAVSO
-97   2417311 1906-04-10 2417279 1906-03-09 32 AAVSO
-96   2417573 1906-12-28 2417555 1906-12-10 18 AAVSO
-95   2417842 1907-09-23 2417831 1907-09-12 11 AAVSO
-94   2418145 1908-07-22 2418107 1908-06-14 38 AAVSO
-93 7.8 2418397 1909-03-31 2418382 1909-03-16 15 AAVSO
-92   2418675 1910-01-03 2418658 1909-12-17 17 AAVSO
-90   2419227 1911-07-09 2419210 1911-06-22 17 AAVSO
-89 8.0 2419511 1912-04-18 2419486 1912-03-24 25 AAVSO
-88   2419795 1913-01-27 2419762 1912-12-25 33 AAVSO
-87   2420069 1913-10-28 2420037 1913-09-26 32 AAVSO
-86 8.8 2420334 1914-07-20 2420313 1914-06-29 21 AAVSO
-85 8.4 2420614 1915-04-26 2420589 1915-04-01 25 AAVSO
-84 8.8 2420899 1916-02-05 2420865 1916-01-02 34 AAVSO
-83   2421157 1916-10-20 2421141 1916-10-04 16 AAVSO
-82 7.5 2421441 1917-07-31 2421417 1917-07-07 24 AAVSO
-81 9.0 2421721 1918-05-07 2421692 1918-04-08 29 AAVSO
-80   2421999 1919-02-09 2421968 1919-01-09 31 AAVSO
-79   2422263 1919-10-31 2422244 1919-10-12 19 AAVSO
-78 8.4 2422539 1920-08-02 2422520 1920-07-14 19 AAVSO
-77 9.0 2422821 1921-05-11 2422796 1921-04-16 25 SVO
-76 7.6 2423090 1922-02-04 2423072 1922-01-17 18 AAVSO
-75   2423365 1922-11-06 2423348 1922-10-20 17 AAVSO
-74 8.4 2423644 1923-08-12 2423623 1923-07-22 21 AAVSO
-73 8.3 2423918 1924-05-12 2423899 1924-04-23 19 AAVSO
-72 9.0 2424175 1925-01-24 2424175 1925-01-24 0 AAVSO
-71   2424458 1925-11-03 2424451 1925-10-27 7 AAVSO
-70 9.4 2424726 1926-07-29 2424727 1926-07-30 -1 AAVSO
-69 8.6 2424991 1927-04-20 2425003 1927-05-02 -12 AAVSO
-68 8.5 2425264 1928-01-18 2425278 1928-02-01 -14 AAVSO
-67 8.5 2425538 1928-10-18 2425554 1928-11-03 -16 SVO
-66 9.3 2425806 1929-07-13 2425830 1929-08-06 -24 SVO
-65 8.4 2426081 1930-04-14 2426106 1930-05-09 -25 SVO
-64 8.9 2426358 1931-01-16 2426382 1931-02-09 -24 SVO
-63   2426635 1931-10-20 2426658 1931-11-12 -23 AAVSO
-62 8.1 2426905 1932-07-16 2426933 1932-08-13 -28 SVO
-61 8.7 2427185 1933-04-22 2427209 1933-05-16 -24 SVO
-60 8.5 2427457 1934-01-19 2427485 1934-02-16 -28 AAVSO
-59   2427724 1934-10-13 2427761 1934-11-19 -37 AAVSO
-58 8.0 2427995 1935-07-11 2428037 1935-08-22 -42 SVO
-57 9.4 2428274 1936-04-15 2428313 1936-05-24 -39 SVO
-56 8.6 2428562 1937-01-28 2428589 1937-02-24 -27 AAVSO
-55   2428826 1937-10-19 2428864 1937-11-26 -38 AAVSO
-54 8.8 2429096 1938-07-16 2429140 1938-08-29 -44 AAVSO
-53 8.0 2429365 1939-04-11 2429416 1939-06-01 -51 AAVSO
-52 9.1 2429650 1940-01-21 2429692 1940-03-03 -42 AAVSO
-51   2429933 1940-10-30 2429968 1940-12-04 -35 AAVSO
-50 8.7 2430215 1941-08-08 2430244 1941-09-06 -29 AAVSO
-49 8.9 2430493 1942-05-13 2430519 1942-06-08 -26 SVO
-48 8.8 2430769 1943-02-13 2430795 1943-03-11 -26 AAVSO
-47   2431045 1943-11-16 2431071 1943-12-12 -26 AAVSO
-46 8.4 2431319 1944-08-16 2431347 1944-09-13 -28 AAVSO
-45 8.1 2431596 1945-05-20 2431623 1945-06-16 -27 SVO
-44 8.5 2431861 1946-02-09 2431899 1946-03-19 -38 AAVSO
-43   2432145 1946-11-20 2432174 1946-12-19 -29 AAVSO
-42 8.4 2432425 1947-08-27 2432450 1947-09-21 -25 AAVSO
-41 8.8 2432706 1948-06-03 2432726 1948-06-23 -20 SVO
-40 8.4 2432973 1949-02-25 2433002 1949-03-26 -29 AAVSO
-39 9.2 2433255 1949-12-04 2433278 1949-12-27 -23 AAVSO
-38 8.3 2433536 1950-09-11 2433554 1950-09-29 -18 AAVSO
-37 8.6 2433821 1951-06-23 2433829 1951-07-01 -8 SVO
-36 8.8 2434092 1952-03-20 2434105 1952-04-02 -13 AAVSO
-35   2434363 1952-12-16 2434381 1953-01-03 -18 AAVSO
-34 10.6 2434639 1953-09-18 2434657 1953-10-06 -18 AAVSO
-33 8.6 2434922 1954-06-28 2434933 1954-07-09 -11 SVO
-32 9.0 2435191 1955-03-24 2435209 1955-04-11 -18 AAVSO
-31   2435461 1955-12-19 2435485 1956-01-12 -24 AAVSO
-30   2435743 1956-09-26 2435760 1956-10-13 -17 AAVSO
-29 8.4 2436026 1957-07-06 2436036 1957-07-16 -10 AAVSO
-28 9.6 2436293 1958-03-30 2436312 1958-04-18 -19 AAVSO
-27   2436575 1959-01-06 2436588 1959-01-19 -13 AAVSO
-26   2436846 1959-10-04 2436864 1959-10-22 -18 AAVSO
-25 9.3 2437117 1960-07-01 2437140 1960-07-24 -23 SVO
-24 8.4 2437398 1961-04-08 2437415 1961-04-25 -17 AAVSO
-23 8.2 2437678 1962-01-13 2437691 1962-01-26 -13 AAVSO
-22   2437947 1962-10-09 2437967 1962-10-29 -20 AAVSO
-21 8.6 2438223 1963-07-12 2438243 1963-08-01 -20 SVO
-20 8.6 2438500 1964-04-14 2438519 1964-05-03 -19 SVO
-19 8.6 2438774 1965-01-13 2438795 1965-02-03 -21 AAVSO
-18   2439057 1965-10-23 2439070 1965-11-05 -13 AAVSO
-17 8.5 2439333 1966-07-26 2439346 1966-08-08 -13 SVO
-16 8.8 2439603 1967-04-22 2439622 1967-05-11 -19 SVO
-15 9.0 2439885 1968-01-29 2439898 1968-02-11 -13 AAVSO
-14   2440160 1968-10-30 2440174 1968-11-13 -14 AAVSO
-13 8.1 2440432 1969-07-29 2440450 1969-08-16 -18 AAVSO
-12 9.0 2440704 1970-04-27 2440725 1970-05-18 -21 SVO
-11 8.5 2440977 1971-01-25 2441001 1971-02-18 -24 AAVSO
-10   2441256 1971-10-31 2441277 1971-11-21 -21 AAVSO
-9 9.1 2441534 1972-08-04 2441553 1972-08-23 -19 AAVSO
-8 8.9 2441805 1973-05-02 2441829 1973-05-26 -24 SVO
-7 8.8 2442087 1974-02-08 2442105 1974-02-26 -18 AAVSO
-6   2442357 1974-11-05 2442381 1974-11-29 -24 AAVSO
-5 8.5 2442638 1975-08-13 2442656 1975-08-31 -18 AAVSO
-4 9.2 2442916 1976-05-17 2442932 1976-06-02 -16 SVO
-3 8.7 2443204 1977-03-01 2443208 1977-03-05 -4 SVO
-2   2443474 1977-11-26 2443484 1977-12-06 -10 AAVSO
-1 8.6 2443752 1978-08-31 2443760 1978-09-08 -8 SVO
0 8.7 2444024 1979-05-30 2444036 1979-06-11 -12 SVO
1 8.7 2444305 1980-03-06 2444311 1980-03-12 -6 SVO
2 8.7 2444572 1980-11-28 2444587 1980-12-13 -15 AAVSO
3 8.4 2444848 1981-08-31 2444863 1981-09-15 -15 AAVSO
4 9.2 2445131 1982-06-10 2445139 1982-06-18 -8 SVO
5 8.5 2445409 1983-03-15 2445415 1983-03-21 -6 SVO
6 8.9 2445683 1983-12-14 2445691 1983-12-22 -8 AAVSO
7 9.3 2445952 1984-09-08 2445966 1984-09-22 -14 AAVSO
8 8.8 2446226 1985-06-09 2446242 1985-06-25 -16 SVO
9 9.1 2446504 1986-03-14 2446518 1986-03-28 -14 SVO
10 8.7 2446791 1986-12-26 2446794 1986-12-29 -3 AAVSO
11 9.0 2447053 1987-09-14 2447070 1987-10-01 -17 SVO
12 8.9 2447341 1988-06-28 2447346 1988-07-03 -5 SVO
13 8.7 2447614 1989-03-28 2447622 1989-04-05 -8 SVO
14   2447893 1990-01-01 2447897 1990-01-05 -4 AAVSO
15 9.2 2448175 1990-10-10 2448173 1990-10-08 2 SVO
16 8.9 2448451 1991-07-13 2448449 1991-07-11 2 SVO
17 8.2 2448722 1992-04-09 2448725 1992-04-12 -3 SVO
18   2448999 1993-01-11 2449001 1993-01-13 -2 AAVSO
19 8.9 2449276 1993-10-15 2449277 1993-10-16 -1 SVO
20 8.9 2449551 1994-07-17 2449552 1994-07-18 -1 SVO
21 8.2 2449818 1995-04-10 2449828 1995-04-20 -10 SVO
22 9.2 2450102 1996-01-19 2450104 1996-01-21 -2 SVO
23 9.0 2450383 1996-10-26 2450380 1996-10-23 3 SVO
24 8.7 2450652 1997-07-22 2450656 1997-07-26 -4 SVO
25 8.4 2450926 1998-04-22 2450932 1998-04-28 -6 SVO
26 9.4 2451202 1999-01-23 2451207 1999-01-28 -5 SVO
27 8.8 2451482 1999-10-30 2451483 1999-10-31 -1 SVO
28 9.2 2451766 2000-08-09 2451759 2000-08-02 7 SVO
29 9.1 2452050 2001-05-20 2452035 2001-05-05 15 SVO
30 8.9 2452326 2002-02-20 2452311 2002-02-05 15 SVO
31   2452590 2002-11-11 2452587 2002-11-08 3 AAVSO
32 8.7 2452875 2003-08-23 2452862 2003-08-10 13 SVO
33 8.4 2453155 2004-05-29 2453138 2004-05-12 17 SVO
34 8.1 2453430 2005-02-28 2453414 2005-02-12 16 SVO
35   2453706 2005-12-01 2453690 2005-11-15 16 AAVSO
36 8.4 2453977 2006-08-29 2453966 2006-08-18 11 SVO
37 9.1 2454266 2007-06-14 2454242 2007-05-21 24 SVO
38 8.9 2454538 2008-03-12 2454518 2008-02-21 20 SVO
39 8.3 2454812 2008-12-11 2454793 2008-11-22 19 AAVSO
40 9.4 2455094 2009-09-19 2455069 2009-08-25 25 SVO
41 9.2 2455374 2010-06-26 2455345 2010-05-28 29 SVO
42 8.9 2455652 2011-03-31 2455621 2011-02-28 31 SVO
43 8.9 2455929 2012-01-02 2455897 2011-12-01 32 AAVSO
44 8.7 2456213 2012-10-12 2456173 2012-09-02 40 SVO
45 8.8 2456485 2013-07-11 2456448 2013-06-04 37 SVO
46 8.6 2456762 2014-04-14 2456724 2014-03-07 38 SVO
47 8.2 2457037 2015-01-14 2457000 2014-12-08 37 AAVSO
48 9.6 2457309 2015-10-13 2457276 2015-09-10 33 SVO
49 9.0 2457586 2016-07-16 2457552 2016-06-12 34 SVO
50 9.1 2457861 2017-04-17 2457828 2017-03-15 33 SVO
51 8.4 2458133 2018-01-14 2458103 2017-12-15 30 SVO
52   2458415 2018-10-23 2458379 2018-09-17 36 SVO
53 9.3 2458684 2019-07-19 2458655 2019-06-20 29 SVO
54 9.3 2458957 2020-04-17 2458931 2020-03-22 26 SVO
55 8.7 2459231 2021-01-16 2459207 2020-12-23 24 SVO
56 8.7 2459505 2021-10-17 2459483 2021-09-25 22 SVO
57 9.5 2459787 2022-07-26 2459758 2022-06-27 29 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.