Maxima for U Per
Period: 321.25, Epoch: 2445029.6
AAVSO offset: 10

E Mag O (JD) O (dat) C (JD) C (Dat) O-C Source
-104   2411673 1890-11-01 2411620 1890-09-09 53 AnHar, 1937, vol 105, p 459
-103   2411986 1891-09-10 2411941 1891-07-27 45 AnHar, 1909, vol 55, p 95
-102   2412314 1892-08-03 2412263 1892-06-13 51 AnHar, 1909, vol 55, p 95
-101   2412634 1893-06-19 2412584 1893-04-30 50 AnHar, 1909, vol 55, p 95
-100   2412939 1894-04-20 2412905 1894-03-17 34 AnHar, 1909, vol 55, p 95
-99 7.2 2413254 1895-03-01 2413226 1895-02-01 28 AAVSO
-98 6.9 2413564 1896-01-05 2413547 1895-12-19 17 AAVSO
-97 7.3 2413880 1896-11-16 2413869 1896-11-05 11 AAVSO
-96 7.4 2414200 1897-10-02 2414190 1897-09-22 10 AAVSO
-95 7.4 2414530 1898-08-28 2414511 1898-08-09 19 AAVSO
-94   2414850 1899-07-14 2414832 1899-06-26 18 AnHar, 1909, vol 55, p 95
-93 7.3 2415177 1900-06-06 2415154 1900-05-14 23 AAVSO
-91   2415810 1902-03-01 2415796 1902-02-15 14 AAVSO
-90 7.9 2416128 1903-01-13 2416117 1903-01-02 11 AAVSO
-89   2416434 1903-11-15 2416439 1903-11-20 -5 AAVSO
-88 7.7 2416763 1904-10-09 2416760 1904-10-06 3 AAVSO
-87 8.1 2417084 1905-08-26 2417081 1905-08-23 3 SVO
-86   2417397 1906-07-05 2417402 1906-07-10 -5 AAVSO
-85 7.7 2417701 1907-05-05 2417724 1907-05-28 -23 AAVSO
-84 7.9 2418020 1908-03-19 2418045 1908-04-13 -25 AAVSO
-83 8.2 2418321 1909-01-14 2418366 1909-02-28 -45 AAVSO
-82 7.7 2418638 1909-11-27 2418687 1910-01-15 -49 AAVSO
-81 7.8 2418958 1910-10-13 2419009 1910-12-03 -51 AAVSO
-80   2419292 1911-09-12 2419330 1911-10-20 -38 MNRAS, 1919, vol 79, p 513
-79   2419571 1912-06-17 2419651 1912-09-05 -80 MNRAS, 1919, vol 79, p 513
-78   2419898 1913-05-10 2419972 1913-07-23 -74 AAVSO
-77 7.9 2420227 1914-04-04 2420294 1914-06-10 -67 AAVSO
-76 8.3 2420537 1915-02-08 2420615 1915-04-27 -78 SVO
-75 7.8 2420880 1916-01-17 2420936 1916-03-13 -56 SVO
-74 7.9 2421193 1916-11-25 2421257 1917-01-28 -64 SVO
-73 8.1 2421504 1917-10-02 2421579 1917-12-16 -75 SVO
-72 8.1 2421829 1918-08-23 2421900 1918-11-02 -71 SVO
-71 8.0 2422154 1919-07-14 2422221 1919-09-19 -67 AAVSO
-70 8.0 2422459 1920-05-14 2422542 1920-08-05 -83 SVO
-69 8.2 2422803 1921-04-23 2422864 1921-06-23 -61 SVO
-68 8.2 2423112 1922-02-26 2423185 1922-05-10 -73 SVO
-67 8.2 2423440 1923-01-20 2423506 1923-03-27 -66 SVO
-66 8.4 2423759 1923-12-05 2423827 1924-02-11 -68 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 2424791 1926-10-02 -50 AAVSO
-62 8.1 2425061 1927-06-29 2425112 1927-08-19 -51 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 2426397 1931-02-24 -74 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 2427682 1934-09-01 -52 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 2430574 1942-08-02 19 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 2433465 1950-07-02 73 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 2434750 1954-01-07 79 AAVSO
-31 8.1 2435154 1955-02-15 2435071 1954-11-24 83 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 2436035 1957-07-15 80 SVO
-27 8.0 2436425 1958-08-09 2436356 1958-06-01 69 SVO
-26 8.1 2436744 1959-06-24 2436677 1959-04-18 67 SVO
-25 8.0 2437062 1960-05-07 2436998 1960-03-04 64 AAVSO
-24 8.4 2437389 1961-03-30 2437320 1961-01-20 69 AAVSO
-23 8.0 2437703 1962-02-07 2437641 1961-12-07 62 SVO
-22 8.0 2438022 1962-12-23 2437962 1962-10-24 60 SVO
-21 8.1 2438340 1963-11-06 2438283 1963-09-10 57 SVO
-20 8.0 2438654 1964-09-15 2438605 1964-07-28 49 SVO
-19 8.0 2438979 1965-08-06 2438926 1965-06-14 53 SVO
-18 8.2 2439291 1966-06-14 2439247 1966-05-01 44 SVO
-17 8.3 2439623 1967-05-12 2439568 1967-03-18 55 SVO
-16 7.9 2439932 1968-03-16 2439890 1968-02-03 42 SVO
-15 8.2 2440258 1969-02-05 2440211 1968-12-20 47 SVO
-14 7.9 2440572 1969-12-16 2440532 1969-11-06 40 SVO
-13 8.0 2440898 1970-11-07 2440853 1970-09-23 45 SVO
-12 7.8 2441208 1971-09-13 2441175 1971-08-11 33 SVO
-11 8.1 2441540 1972-08-10 2441496 1972-06-27 44 SVO
-10 8.1 2441863 1973-06-29 2441817 1973-05-14 46 SVO
-9 8.1 2442182 1974-05-14 2442138 1974-03-31 44 SVO
-8 8.2 2442508 1975-04-05 2442460 1975-02-16 48 SVO
-7 7.8 2442833 1976-02-24 2442781 1976-01-03 52 SVO
-6 8.3 2443163 1977-01-19 2443102 1976-11-19 61 SVO
-5 8.2 2443490 1977-12-12 2443423 1977-10-06 67 SVO
-4 8.0 2443820 1978-11-07 2443745 1978-08-24 75 SVO
-3 8.1 2444132 1979-09-15 2444066 1979-07-11 66 SVO
-2 8.0 2444448 1980-07-27 2444387 1980-05-27 61 SVO
-1 8.1 2444750 1981-05-25 2444708 1981-04-13 42 SVO
0 8.1 2445073 1982-04-13 2445030 1982-03-01 43 SVO
1 8.2 2445395 1983-03-01 2445351 1983-01-16 44 SVO
2 7.9 2445708 1984-01-08 2445672 1983-12-03 36 SVO
3 7.9 2446028 1984-11-23 2445993 1984-10-19 35 SVO
4 8.0 2446352 1985-10-13 2446315 1985-09-06 37 SVO
5 8.1 2446670 1986-08-27 2446636 1986-07-24 34 SVO
6 8.2 2446994 1987-07-17 2446957 1987-06-10 37 SVO
7 7.9 2447308 1988-05-26 2447278 1988-04-26 30 SVO
8 8.3 2447614 1989-03-28 2447600 1989-03-14 14 SVO
9 7.9 2447932 1990-02-09 2447921 1990-01-29 11 SVO
10 7.9 2448238 1990-12-12 2448242 1990-12-16 -4 SVO
11 8.1 2448552 1991-10-22 2448563 1991-11-02 -11 SVO
12 8.3 2448877 1992-09-11 2448885 1992-09-19 -8 SVO
13 8.2 2449199 1993-07-30 2449206 1993-08-06 -7 SVO
14 8.0 2449512 1994-06-08 2449527 1994-06-23 -15 SVO
15 8.2 2449834 1995-04-26 2449848 1995-05-10 -14 SVO
16 7.9 2450145 1996-03-02 2450169 1996-03-26 -24 SVO
17 8.0 2450470 1997-01-21 2450491 1997-02-11 -21 SVO
18 8.1 2450795 1997-12-12 2450812 1997-12-29 -17 SVO
19 8.0 2451107 1998-10-20 2451133 1998-11-15 -26 SVO
20 8.0 2451423 1999-09-01 2451454 1999-10-02 -31 SVO
21 8.1 2451742 2000-07-16 2451776 2000-08-19 -34 SVO
22 8.0 2452057 2001-05-27 2452097 2001-07-06 -40 SVO
23 8.2 2452388 2002-04-23 2452418 2002-05-23 -30 SVO
24 8.1 2452704 2003-03-05 2452739 2003-04-09 -35 SVO
25 7.9 2453024 2004-01-19 2453061 2004-02-25 -37 SVO
26 8.2 2453345 2004-12-05 2453382 2005-01-11 -37 SVO
27 8.1 2453667 2005-10-23 2453703 2005-11-28 -36 SVO
28 8.0 2453995 2006-09-16 2454024 2006-10-15 -29 SVO
29 8.1 2454316 2007-08-03 2454346 2007-09-02 -30 SVO
30 8.1 2454637 2008-06-19 2454667 2008-07-19 -30 SVO
31 8.2 2454949 2009-04-27 2454988 2009-06-05 -39 SVO
32 8.0 2455276 2010-03-20 2455309 2010-04-22 -33 SVO
33 8.2 2455592 2011-01-30 2455631 2011-03-10 -39 SVO
34 8.0 2455909 2011-12-13 2455952 2012-01-25 -43 SVO
35 8.4 2456228 2012-10-27 2456273 2012-12-11 -45 SVO
36 7.9 2456542 2013-09-06 2456594 2013-10-28 -52 SVO
37 8.3 2456858 2014-07-19 2456916 2014-09-15 -58 SVO
38 8.2 2457177 2015-06-03 2457237 2015-08-02 -60 SVO
39 8.1 2457492 2016-04-13 2457558 2016-06-18 -66 SVO
40 8.3 2457813 2017-02-28 2457879 2017-05-05 -66 SVO
41 8.4 2458141 2018-01-22 2458201 2018-03-23 -60 SVO
42 8.3 2458470 2018-12-17 2458522 2019-02-07 -52 SVO
43   2458800 2019-11-12 2458843 2019-12-25 -43 SVO
44 8.3 2459126 2020-10-03 2459164 2020-11-10 -38 SVO
45 8.2 2459448 2021-08-21 2459486 2021-09-28 -38 SVO
46 8.0 2459766 2022-07-05 2459807 2022-08-15 -41 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.