Maxima for U Per
Period: 321.21, Epoch: 2445028.0
AAVSO offset: 10

E Mag O (JD) O (dat) C (JD) C (Dat) O-C Source
-104   2411673 1890-11-01 2411622 1890-09-11 51 AnHar, 1937, vol 105, p 459
-103   2411986 1891-09-10 2411943 1891-07-29 43 AnHar, 1909, vol 55, p 95
-102   2412314 1892-08-03 2412264 1892-06-14 50 AnHar, 1909, vol 55, p 95
-101   2412634 1893-06-19 2412586 1893-05-02 48 AnHar, 1909, vol 55, p 95
-100   2412939 1894-04-20 2412907 1894-03-19 32 AnHar, 1909, vol 55, p 95
-99 7.2 2413254 1895-03-01 2413228 1895-02-03 26 AAVSO
-98 6.9 2413564 1896-01-05 2413549 1895-12-21 15 AAVSO
-97 7.3 2413880 1896-11-16 2413870 1896-11-06 10 AAVSO
-96 7.4 2414200 1897-10-02 2414192 1897-09-24 8 AAVSO
-95 7.4 2414530 1898-08-28 2414513 1898-08-11 17 AAVSO
-94   2414850 1899-07-14 2414834 1899-06-28 16 AnHar, 1909, vol 55, p 95
-93 7.3 2415177 1900-06-06 2415155 1900-05-15 22 AAVSO
-92   2415500 1901-04-25 2415476 1901-04-01 24 SVO
-91   2415810 1902-03-01 2415798 1902-02-17 12 AAVSO
-90 7.9 2416128 1903-01-13 2416119 1903-01-04 9 AAVSO
-89   2416434 1903-11-15 2416440 1903-11-21 -6 AAVSO
-88 7.7 2416763 1904-10-09 2416761 1904-10-07 2 AAVSO
-87 8.1 2417084 1905-08-26 2417083 1905-08-25 1 SVO
-86   2417397 1906-07-05 2417404 1906-07-12 -7 AAVSO
-85 7.7 2417701 1907-05-05 2417725 1907-05-29 -24 AAVSO
-84 7.9 2418020 1908-03-19 2418046 1908-04-14 -26 AAVSO
-83 8.2 2418321 1909-01-14 2418367 1909-03-01 -46 AAVSO
-82 7.7 2418638 1909-11-27 2418689 1910-01-17 -51 AAVSO
-81 7.8 2418958 1910-10-13 2419010 1910-12-04 -52 AAVSO
-80   2419292 1911-09-12 2419331 1911-10-21 -39 MNRAS, 1919, vol 79, p 513
-79   2419571 1912-06-17 2419652 1912-09-06 -81 MNRAS, 1919, vol 79, p 513
-78   2419898 1913-05-10 2419973 1913-07-24 -75 AAVSO
-77 7.9 2420227 1914-04-04 2420295 1914-06-11 -68 AAVSO
-76 8.3 2420537 1915-02-08 2420616 1915-04-28 -79 SVO
-75 7.8 2420880 1916-01-17 2420937 1916-03-14 -57 SVO
-74 7.9 2421193 1916-11-25 2421258 1917-01-29 -65 SVO
-73 8.1 2421504 1917-10-02 2421579 1917-12-16 -75 SVO
-72 8.1 2421829 1918-08-23 2421901 1918-11-03 -72 SVO
-71 8.0 2422154 1919-07-14 2422222 1919-09-20 -68 AAVSO
-70 8.0 2422459 1920-05-14 2422543 1920-08-06 -84 SVO
-69 8.2 2422803 1921-04-23 2422864 1921-06-23 -61 SVO
-68 8.2 2423112 1922-02-26 2423186 1922-05-11 -74 SVO
-67 8.2 2423440 1923-01-20 2423507 1923-03-28 -67 SVO
-66 8.4 2423759 1923-12-05 2423828 1924-02-12 -69 AAVSO
-65 8.2 2424080 1924-10-21 2424149 1924-12-29 -69 AAVSO
-64 8.2 2424401 1925-09-07 2424470 1925-11-15 -69 AAVSO
-63 8.2 2424741 1926-08-13 2424792 1926-10-03 -51 AAVSO
-62 8.1 2425061 1927-06-29 2425113 1927-08-20 -52 SVO
-61 8.2 2425373 1928-05-06 2425434 1928-07-06 -61 SVO
-60 8.2 2425690 1929-03-19 2425755 1929-05-23 -65 AAVSO
-59 8.0 2426000 1930-01-23 2426076 1930-04-09 -76 SVO
-58 8.0 2426323 1930-12-12 2426398 1931-02-25 -75 SVO
-57 8.3 2426654 1931-11-08 2426719 1932-01-12 -65 SVO
-56 8.1 2426979 1932-09-28 2427040 1932-11-28 -61 SVO
-55 8.2 2427305 1933-08-20 2427361 1933-10-15 -56 SVO
-54 8.0 2427630 1934-07-11 2427683 1934-09-02 -53 SVO
-53 7.8 2427950 1935-05-27 2428004 1935-07-20 -54 SVO
-52 8.3 2428290 1936-05-01 2428325 1936-06-05 -35 SVO
-51 8.3 2428619 1937-03-26 2428646 1937-04-22 -27 SVO
-50 8.0 2428951 1938-02-21 2428967 1938-03-09 -16 SVO
-49 7.9 2429276 1939-01-12 2429289 1939-01-25 -13 SVO
-48 8.0 2429606 1939-12-08 2429610 1939-12-12 -4 SVO
-47 8.1 2429940 1940-11-06 2429931 1940-10-28 9 SVO
-46 7.9 2430255 1941-09-17 2430252 1941-09-14 3 SVO
-45 8.0 2430593 1942-08-21 2430573 1942-08-01 20 SVO
-44 8.3 2430920 1943-07-14 2430895 1943-06-19 25 SVO
-43 8.3 2431256 1944-06-14 2431216 1944-05-05 40 SVO
-42 8.3 2431590 1945-05-14 2431537 1945-03-22 53 AAVSO
-41 8.3 2431925 1946-04-14 2431858 1946-02-06 67 SVO
-40 8.1 2432259 1947-03-14 2432180 1946-12-25 79 SVO
-39 8.0 2432575 1948-01-24 2432501 1947-11-11 74 SVO
-38 8.2 2432894 1948-12-08 2432822 1948-09-27 72 SVO
-37 8.0 2433207 1949-10-17 2433143 1949-08-14 64 SVO
-36 7.8 2433538 1950-09-13 2433464 1950-07-01 74 SVO
-35 8.1 2433872 1951-08-13 2433786 1951-05-19 86 SVO
-34 8.1 2434192 1952-06-28 2434107 1952-04-04 85 SVO
-33 8.4 2434509 1953-05-11 2434428 1953-02-19 81 AAVSO
-32 8.0 2434829 1954-03-27 2434749 1954-01-06 80 AAVSO
-31 8.1 2435154 1955-02-15 2435070 1954-11-23 84 AAVSO
-30 8.0 2435477 1956-01-04 2435392 1955-10-11 85 SVO
-29 8.0 2435795 1956-11-17 2435713 1956-08-27 82 SVO
-28 8.0 2436115 1957-10-03 2436034 1957-07-14 81 SVO
-27 8.0 2436425 1958-08-09 2436355 1958-05-31 70 SVO
-26 8.1 2436744 1959-06-24 2436676 1959-04-17 68 SVO
-25 8.0 2437062 1960-05-07 2436998 1960-03-04 64 AAVSO
-24 8.2 2437377 1961-03-18 2437319 1961-01-19 58 SVO
-23 8.0 2437703 1962-02-07 2437640 1961-12-06 63 SVO
-22 8.0 2438022 1962-12-23 2437961 1962-10-23 61 SVO
-21 8.1 2438340 1963-11-06 2438283 1963-09-10 57 SVO
-20 8.0 2438654 1964-09-15 2438604 1964-07-27 50 SVO
-19 8.0 2438979 1965-08-06 2438925 1965-06-13 54 SVO
-18 8.2 2439291 1966-06-14 2439246 1966-04-30 45 SVO
-17 8.3 2439623 1967-05-12 2439567 1967-03-17 56 SVO
-16 7.9 2439932 1968-03-16 2439889 1968-02-02 43 SVO
-15 8.2 2440258 1969-02-05 2440210 1968-12-19 48 SVO
-14 7.9 2440572 1969-12-16 2440531 1969-11-05 41 SVO
-13 8.0 2440898 1970-11-07 2440852 1970-09-22 46 SVO
-12 7.8 2441208 1971-09-13 2441173 1971-08-09 35 SVO
-11 8.1 2441540 1972-08-10 2441495 1972-06-26 45 SVO
-10 8.1 2441863 1973-06-29 2441816 1973-05-13 47 SVO
-9 8.1 2442182 1974-05-14 2442137 1974-03-30 45 SVO
-8 8.2 2442508 1975-04-05 2442458 1975-02-14 50 SVO
-7 7.8 2442833 1976-02-24 2442780 1976-01-02 53 SVO
-6 8.3 2443163 1977-01-19 2443101 1976-11-18 62 SVO
-5 8.2 2443490 1977-12-12 2443422 1977-10-05 68 SVO
-4 8.0 2443820 1978-11-07 2443743 1978-08-22 77 SVO
-3 8.1 2444132 1979-09-15 2444064 1979-07-09 68 SVO
-2 8.0 2444448 1980-07-27 2444386 1980-05-26 62 SVO
-1 8.1 2444750 1981-05-25 2444707 1981-04-12 43 SVO
0 8.1 2445073 1982-04-13 2445028 1982-02-27 45 SVO
1 8.2 2445395 1983-03-01 2445349 1983-01-14 46 SVO
2 7.9 2445708 1984-01-08 2445670 1983-12-01 38 SVO
3 7.9 2446028 1984-11-23 2445992 1984-10-18 36 SVO
4 8.0 2446352 1985-10-13 2446313 1985-09-04 39 SVO
5 8.1 2446670 1986-08-27 2446634 1986-07-22 36 SVO
6 8.2 2446994 1987-07-17 2446955 1987-06-08 39 SVO
7 7.9 2447308 1988-05-26 2447277 1988-04-25 31 SVO
8 8.3 2447614 1989-03-28 2447598 1989-03-12 16 SVO
9 7.9 2447932 1990-02-09 2447919 1990-01-27 13 SVO
10 7.9 2448238 1990-12-12 2448240 1990-12-14 -2 SVO
11 8.1 2448552 1991-10-22 2448561 1991-10-31 -9 SVO
12 8.3 2448877 1992-09-11 2448883 1992-09-17 -6 SVO
13 8.2 2449199 1993-07-30 2449204 1993-08-04 -5 SVO
14 8.0 2449512 1994-06-08 2449525 1994-06-21 -13 SVO
15 8.2 2449834 1995-04-26 2449846 1995-05-08 -12 SVO
16 7.9 2450145 1996-03-02 2450167 1996-03-24 -22 SVO
17 8.0 2450470 1997-01-21 2450489 1997-02-09 -19 SVO
18 8.1 2450795 1997-12-12 2450810 1997-12-27 -15 SVO
19 8.0 2451107 1998-10-20 2451131 1998-11-13 -24 SVO
20 8.0 2451423 1999-09-01 2451452 1999-09-30 -29 SVO
21 8.1 2451742 2000-07-16 2451773 2000-08-16 -31 SVO
22 8.0 2452057 2001-05-27 2452095 2001-07-04 -38 SVO
23 8.2 2452388 2002-04-23 2452416 2002-05-21 -28 SVO
24 8.1 2452704 2003-03-05 2452737 2003-04-07 -33 SVO
25 7.9 2453024 2004-01-19 2453058 2004-02-22 -34 SVO
26 8.2 2453345 2004-12-05 2453380 2005-01-09 -35 SVO
27 8.1 2453667 2005-10-23 2453701 2005-11-26 -34 SVO
28 8.0 2453995 2006-09-16 2454022 2006-10-13 -27 SVO
29 8.1 2454316 2007-08-03 2454343 2007-08-30 -27 SVO
30 8.1 2454637 2008-06-19 2454664 2008-07-16 -27 SVO
31 8.2 2454949 2009-04-27 2454986 2009-06-03 -37 SVO
32 8.0 2455276 2010-03-20 2455307 2010-04-20 -31 SVO
33 8.2 2455592 2011-01-30 2455628 2011-03-07 -36 SVO
34 8.0 2455909 2011-12-13 2455949 2012-01-22 -40 SVO
35 8.4 2456228 2012-10-27 2456270 2012-12-08 -42 SVO
36 7.9 2456542 2013-09-06 2456592 2013-10-26 -50 SVO
37 8.3 2456858 2014-07-19 2456913 2014-09-12 -55 SVO
38 8.2 2457177 2015-06-03 2457234 2015-07-30 -57 SVO
39 8.1 2457492 2016-04-13 2457555 2016-06-15 -63 SVO
40 8.3 2457813 2017-02-28 2457877 2017-05-03 -64 SVO
41 8.4 2458141 2018-01-22 2458198 2018-03-20 -57 SVO
42 8.3 2458470 2018-12-17 2458519 2019-02-04 -49 SVO
43   2458800 2019-11-12 2458840 2019-12-22 -40 SVO
44 8.3 2459126 2020-10-03 2459161 2020-11-07 -35 SVO
45 8.2 2459448 2021-08-21 2459483 2021-09-25 -35 SVO
46 8.0 2459766 2022-07-05 2459804 2022-08-12 -38 SVO
47 8.1 2460079 2023-05-14 2460125 2023-06-29 -46 SVO
48 8.0 2460390 2024-03-20 2460446 2024-05-15 -56 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.