Maxima for U Lib
Period: 227.06, Epoch: 2439139.6
AAVSO offset: -3

E Mag O (JD) O (dat) C (JD) C (Dat) O-C Source
-138   2407854 1880-05-18 2407806 1880-03-31 48 AnHar, 1937, vol 105, p 459
-120   2411932 1891-07-18 2411893 1891-06-09 39 AnHar, 1909, vol 55, p 95
-117   2412599 1893-05-15 2412574 1893-04-20 25 AnHar, 1909, vol 55, p 95
-112   2413732 1896-06-21 2413709 1896-05-29 23 AnHar, 1909, vol 55, p 95
-111   2413950 1897-01-25 2413936 1897-01-11 14 SVO
-110   2414180 1897-09-12 2414163 1897-08-26 17 SVO
-109   2414400 1898-04-20 2414390 1898-04-10 10 SVO
-107   2414860 1899-07-24 2414845 1899-07-09 15 SVO
-106   2415090 1900-03-11 2415072 1900-02-21 18 SVO
-104   2415555 1901-06-19 2415526 1901-05-21 29 SVO
-102   2416000 1902-09-07 2415980 1902-08-18 20 SVO
-99   2416693 1904-07-31 2416661 1904-06-29 32 AAVSO
-98   2416905 1905-02-28 2416888 1905-02-11 17 AAVSO
-96 9.0 2417349 1906-05-18 2417342 1906-05-11 7 AAVSO
-94 9.5 2417807 1907-08-19 2417796 1907-08-08 11 AAVSO
-93 9.4 2418036 1908-04-04 2418023 1908-03-22 13 AAVSO
-91 9.5 2418506 1909-07-18 2418478 1909-06-20 28 AAVSO
-90 9.3 2418725 1910-02-22 2418705 1910-02-02 20 AAVSO
-88   2419190 1911-06-02 2419159 1911-05-02 31 AAVSO
-86   2419631 1912-08-16 2419613 1912-07-29 18 AAVSO
-83 9.2 2420307 1914-06-23 2420294 1914-06-10 13 AAVSO
-80 9.0 2420989 1916-05-05 2420975 1916-04-21 14 AAVSO
-77   2421670 1918-03-17 2421656 1918-03-03 14 AAVSO
-75 9.2 2422113 1919-06-03 2422110 1919-05-31 3 AAVSO
-74 9.5 2422352 1920-01-28 2422337 1920-01-13 15 AAVSO
-73   2422573 1920-09-05 2422565 1920-08-28 8 AAVSO
-72   2422813 1921-05-03 2422792 1921-04-12 21 AAVSO
-70   2423248 1922-07-12 2423246 1922-07-10 2 AAVSO
-69 9.4 2423483 1923-03-04 2423473 1923-02-22 10 AAVSO
-68 9.2 2423708 1923-10-15 2423700 1923-10-07 8 AAVSO
-67 10.1 2423940 1924-06-03 2423927 1924-05-21 13 SVO
-66   2424159 1925-01-08 2424154 1925-01-03 5 AAVSO
-65 10.0 2424385 1925-08-22 2424381 1925-08-18 4 AAVSO
-64 10.4 2424617 1926-04-11 2424608 1926-04-02 9 AAVSO
-63   2424844 1926-11-24 2424835 1926-11-15 9 AAVSO
-62 9.0 2425069 1927-07-07 2425062 1927-06-30 7 AAVSO
-61 9.0 2425297 1928-02-20 2425289 1928-02-12 8 AAVSO
-60 10.0 2425526 1928-10-06 2425516 1928-09-26 10 AAVSO
-59 9.9 2425748 1929-05-16 2425743 1929-05-11 5 SVO
-57 9.2 2426193 1930-08-04 2426197 1930-08-08 -4 AAVSO
-56 9.6 2426426 1931-03-25 2426424 1931-03-23 2 AAVSO
-55   2426637 1931-10-22 2426652 1931-11-06 -15 AAVSO
-54 9.2 2426847 1932-05-19 2426879 1932-06-20 -32 AAVSO
-53   2427098 1933-01-25 2427106 1933-02-02 -8 AAVSO
-52 9.4 2427333 1933-09-17 2427333 1933-09-17 0 AAVSO
-51 9.5 2427556 1934-04-28 2427560 1934-05-02 -4 SVO
-50   2427782 1934-12-10 2427787 1934-12-15 -5 AAVSO
-49 9.8 2428011 1935-07-27 2428014 1935-07-30 -3 AAVSO
-48   2428241 1936-03-13 2428241 1936-03-13 0 AAVSO
-47   2428462 1936-10-20 2428468 1936-10-26 -6 AAVSO
-46 10.0 2428690 1937-06-05 2428695 1937-06-10 -5 SVO
-45   2428908 1938-01-09 2428922 1938-01-23 -14 AAVSO
-44 9.6 2429130 1938-08-19 2429149 1938-09-07 -19 SVO
-43 9.6 2429365 1939-04-11 2429376 1939-04-22 -11 AAVSO
-41 9.6 2429809 1940-06-28 2429830 1940-07-19 -21 SVO
-40   2430043 1941-02-17 2430057 1941-03-03 -14 AAVSO
-38 9.7 2430480 1942-04-30 2430511 1942-05-31 -31 AAVSO
-36 9.4 2430940 1943-08-03 2430966 1943-08-29 -26 AAVSO
-33 9.7 2431621 1945-06-14 2431647 1945-07-10 -26 AAVSO
-31   2432071 1946-09-07 2432101 1946-10-07 -30 AAVSO
-30 9.4 2432297 1947-04-21 2432328 1947-05-22 -31 AAVSO
-28 9.4 2432757 1948-07-24 2432782 1948-08-18 -25 AAVSO
-27 9.9 2432993 1949-03-17 2433009 1949-04-02 -16 SVO
-26 10.4 2433212 1949-10-22 2433236 1949-11-15 -24 AAVSO
-25 9.8 2433442 1950-06-09 2433463 1950-06-30 -21 SVO
-24 9.0 2433669 1951-01-22 2433690 1951-02-12 -21 AAVSO
-23 10.0 2433895 1951-09-05 2433917 1951-09-27 -22 AAVSO
-22 9.5 2434121 1952-04-18 2434144 1952-05-11 -23 SVO
-21   2434340 1952-11-23 2434371 1952-12-24 -31 AAVSO
-20 9.7 2434565 1953-07-06 2434599 1953-08-09 -34 SVO
-19 9.3 2434787 1954-02-13 2434826 1954-03-24 -39 SVO
-18 9.6 2435013 1954-09-27 2435053 1954-11-06 -40 AAVSO
-17 9.6 2435230 1955-05-02 2435280 1955-06-21 -50 SVO
-16 9.5 2435458 1955-12-16 2435507 1956-02-03 -49 AAVSO
-15 10.0 2435689 1956-08-03 2435734 1956-09-17 -45 SVO
-14 9.3 2435912 1957-03-14 2435961 1957-05-02 -49 SVO
-13 9.4 2436143 1957-10-31 2436188 1957-12-15 -45 AAVSO
-12 9.9 2436370 1958-06-15 2436415 1958-07-30 -45 SVO
-11 9.2 2436600 1959-01-31 2436642 1959-03-14 -42 AAVSO
-10 10.2 2436830 1959-09-18 2436869 1959-10-27 -39 AAVSO
-9 9.9 2437063 1960-05-08 2437096 1960-06-10 -33 SVO
-8 9.9 2437288 1960-12-19 2437323 1961-01-23 -35 AAVSO
-7 10.2 2437519 1961-08-07 2437550 1961-09-07 -31 SVO
-6 9.5 2437746 1962-03-22 2437777 1962-04-22 -31 SVO
-5   2437969 1962-10-31 2438004 1962-12-05 -35 AAVSO
-4 9.4 2438202 1963-06-21 2438231 1963-07-20 -29 SVO
-3 9.8 2438427 1964-02-01 2438458 1964-03-03 -31 AAVSO
-2 10.4 2438657 1964-09-18 2438686 1964-10-17 -29 AAVSO
-1 9.6 2438891 1965-05-10 2438913 1965-06-01 -22 AAVSO
0 9.2 2439129 1966-01-03 2439140 1966-01-14 -11 AAVSO
1 10.2 2439354 1966-08-16 2439367 1966-08-29 -13 AAVSO
2 9.7 2439578 1967-03-28 2439594 1967-04-13 -16 SVO
3   2439801 1967-11-06 2439821 1967-11-26 -20 AAVSO
4 9.5 2440040 1968-07-02 2440048 1968-07-10 -8 SVO
5 10.4 2440267 1969-02-14 2440275 1969-02-22 -8 AAVSO
6 10.0 2440491 1969-09-26 2440502 1969-10-07 -11 AAVSO
7 9.2 2440725 1970-05-18 2440729 1970-05-22 -4 AAVSO
8   2440950 1970-12-29 2440956 1971-01-04 -6 AAVSO
9 9.8 2441181 1971-08-17 2441183 1971-08-19 -2 AAVSO
10 9.5 2441416 1972-04-08 2441410 1972-04-02 6 AAVSO
11   2441637 1972-11-15 2441637 1972-11-15 0 AAVSO
12 9.9 2441869 1973-07-05 2441864 1973-06-30 5 SVO
13 9.3 2442097 1974-02-18 2442091 1974-02-12 6 AAVSO
14 10.0 2442334 1974-10-13 2442318 1974-09-27 16 AAVSO
15 9.9 2442559 1975-05-26 2442545 1975-05-12 14 SVO
16 9.3 2442784 1976-01-06 2442773 1975-12-26 11 AAVSO
17 9.8 2443008 1976-08-17 2443000 1976-08-09 8 SVO
18 9.4 2443232 1977-03-29 2443227 1977-03-24 5 SVO
19   2443456 1977-11-08 2443454 1977-11-06 2 AAVSO
20 9.9 2443691 1978-07-01 2443681 1978-06-21 10 SVO
21 9.2 2443916 1979-02-11 2443908 1979-02-03 8 AAVSO
22 9.9 2444142 1979-09-25 2444135 1979-09-18 7 AAVSO
23 10.0 2444372 1980-05-12 2444362 1980-05-02 10 SVO
24 11.0 2444596 1980-12-22 2444589 1980-12-15 7 AAVSO
25 9.6 2444824 1981-08-07 2444816 1981-07-30 8 SVO
26 9.8 2445053 1982-03-24 2445043 1982-03-14 10 SVO
27   2445287 1982-11-13 2445270 1982-10-27 17 AAVSO
28 10.6 2445517 1983-07-01 2445497 1983-06-11 20 SVO
29 10.1 2445747 1984-02-16 2445724 1984-01-24 23 AAVSO
30 9.8 2445971 1984-09-27 2445951 1984-09-07 20 AAVSO
31 9.5 2446211 1985-05-25 2446178 1985-04-22 33 SVO
32 9.9 2446425 1985-12-25 2446405 1985-12-05 20 AAVSO
33 9.5 2446660 1986-08-17 2446633 1986-07-21 27 SVO
34 9.7 2446888 1987-04-02 2446860 1987-03-05 28 SVO
35   2447105 1987-11-05 2447087 1987-10-18 18 AAVSO
36 9.3 2447334 1988-06-21 2447314 1988-06-01 20 SVO
37 10.9 2447561 1989-02-03 2447541 1989-01-14 20 SVO
38   2447788 1989-09-18 2447768 1989-08-29 20 AAVSO
39 10.4 2448018 1990-05-06 2447995 1990-04-13 23 SVO
40   2448238 1990-12-12 2448222 1990-11-26 16 AAVSO
41 10.3 2448460 1991-07-22 2448449 1991-07-11 11 SVO
42 9.6 2448689 1992-03-07 2448676 1992-02-23 13 SVO
43   2448909 1992-10-13 2448903 1992-10-07 6 AAVSO
44 10.0 2449138 1993-05-30 2449130 1993-05-22 8 SVO
45   2449363 1994-01-10 2449357 1994-01-04 6 AAVSO
46 9.1 2449585 1994-08-20 2449584 1994-08-19 1 SVO
47 10.1 2449814 1995-04-06 2449811 1995-04-03 3 SVO
48   2450042 1995-11-20 2450038 1995-11-16 4 AAVSO
49 9.6 2450259 1996-06-24 2450265 1996-06-30 -6 SVO
50   2450489 1997-02-09 2450492 1997-02-12 -3 AAVSO
51   2450727 1997-10-05 2450720 1997-09-28 7 AAVSO
52 10.0 2450945 1998-05-11 2450947 1998-05-13 -2 SVO
53   2451167 1998-12-19 2451174 1998-12-26 -7 AAVSO
54 9.6 2451391 1999-07-31 2451401 1999-08-10 -10 SVO
55 10.0 2451622 2000-03-18 2451628 2000-03-24 -6 SVO
56   2451849 2000-10-31 2451855 2000-11-06 -6 AAVSO
57 9.6 2452084 2001-06-23 2452082 2001-06-21 2 SVO
58 9.7 2452308 2002-02-02 2452309 2002-02-03 -1 SVO
59   2452535 2002-09-17 2452536 2002-09-18 -1 AAVSO
60 10.0 2452762 2003-05-02 2452763 2003-05-03 -1 SVO
61   2452994 2003-12-20 2452990 2003-12-16 4 AAVSO
62   2453219 2004-08-01 2453217 2004-07-30 2 AAVSO
63 9.1 2453442 2005-03-12 2453444 2005-03-14 -2 SVO
64   2453687 2005-11-12 2453671 2005-10-27 16 AAVSO
65 9.4 2453902 2006-06-15 2453898 2006-06-11 4 SVO
66   2454144 2007-02-12 2454125 2007-01-24 19 AAVSO
67   2454358 2007-09-14 2454352 2007-09-08 6 AAVSO
68 9.3 2454584 2008-04-27 2454579 2008-04-22 5 SVO
69   2454809 2008-12-08 2454807 2008-12-06 2 AAVSO
70 9.2 2455043 2009-07-30 2455034 2009-07-21 9 SVO
71 10.2 2455274 2010-03-18 2455261 2010-03-05 13 SVO
72   2455504 2010-11-03 2455488 2010-10-18 16 AAVSO
73 9.9 2455724 2011-06-11 2455715 2011-06-02 9 SVO
74 9.6 2455954 2012-01-27 2455942 2012-01-15 12 AAVSO
75 10.2 2456180 2012-09-09 2456169 2012-08-29 11 AAVSO
76 9.9 2456405 2013-04-22 2456396 2013-04-13 9 SVO
77 10.0 2456633 2013-12-06 2456623 2013-11-26 10 AAVSO
78 9.7 2456858 2014-07-19 2456850 2014-07-11 8 SVO
79 10.5 2457092 2015-03-10 2457077 2015-02-23 15 SVO
80   2457318 2015-10-22 2457304 2015-10-08 14 AAVSO
81 9.5 2457538 2016-05-29 2457531 2016-05-22 7 SVO
82 9.8 2457769 2017-01-15 2457758 2017-01-04 11 AAVSO
83 10.0 2457996 2017-08-30 2457985 2017-08-19 11 AAVSO
84 10.1 2458221 2018-04-12 2458212 2018-04-03 9 SVO
85   2458445 2018-11-22 2458439 2018-11-16 6 SVO
86 9.6 2458674 2019-07-09 2458667 2019-07-02 7 SVO
87 9.9 2458902 2020-02-22 2458894 2020-02-14 8 SVO
88   2459130 2020-10-07 2459121 2020-09-28 9 SVO
89 10.0 2459359 2021-05-24 2459348 2021-05-13 11 SVO
90   2459580 2021-12-31 2459575 2021-12-26 5 SVO
91 9.8 2459805 2022-08-13 2459802 2022-08-10 3 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.