Maxima for RR Per
Period: 390.54, Epoch: 2444967.1
AAVSO offset: -2

E Mag O (JD) O (dat) C (JD) C (Dat) O-C Source
-76   2415290 1900-09-27 2415286 1900-09-23 4 AnHar, 1952, vol 118
-74   2416040 1902-10-17 2416067 1902-11-13 -27 AnHar, 1952, vol 118
-73   2416447 1903-11-28 2416457 1903-12-08 -10 AnHar, 1952, vol 118, GuL, 1918, 1.1
-72   2416841 1904-12-26 2416848 1905-01-02 -7 AnHar, 1909, vol 55, p 95
-71   2417236 1906-01-25 2417239 1906-01-28 -3 GuL, 1918, 1.1, AnHar, 1909, vol 55, p 95
-70 8.7 2417610 1907-02-03 2417629 1907-02-22 -19 AAVSO
-68 8.5 2418396 1909-03-30 2418410 1909-04-13 -14 AAVSO
-67 9.3 2418793 1910-05-01 2418801 1910-05-09 -8 SVO
-66 9.0 2419174 1911-05-17 2419191 1911-06-03 -17 SVO
-65 10.3 2419581 1912-06-27 2419582 1912-06-28 -1 SVO
-64 9.3 2419966 1913-07-17 2419972 1913-07-23 -6 SVO
-63   2420351 1914-08-06 2420363 1914-08-18 -12 AAVSO
-62   2420756 1915-09-15 2420753 1915-09-12 3 AAVSO
-61 8.9 2421148 1916-10-11 2421144 1916-10-07 4 AAVSO
-60 9.4 2421534 1917-11-01 2421535 1917-11-02 -1 SVO
-59 9.5 2421933 1918-12-05 2421925 1918-11-27 8 SVO
-58 8.9 2422323 1919-12-30 2422316 1919-12-23 7 SVO
-57 10.0 2422719 1921-01-29 2422706 1921-01-16 13 SVO
-56 9.1 2423106 1922-02-20 2423097 1922-02-11 9 SVO
-55 9.6 2423495 1923-03-16 2423487 1923-03-08 8 SVO
-54 8.8 2423881 1924-04-05 2423878 1924-04-02 3 SVO
-53 10.5 2424282 1925-05-11 2424268 1925-04-27 14 SVO
-52 9.6 2424671 1926-06-04 2424659 1926-05-23 12 SVO
-51 9.5 2425070 1927-07-08 2425049 1927-06-17 21 SVO
-50 9.4 2425465 1928-08-06 2425440 1928-07-12 25 SVO
-49 9.4 2425851 1929-08-27 2425830 1929-08-06 21 SVO
-48 8.8 2426235 1930-09-15 2426221 1930-09-01 14 SVO
-47 9.9 2426631 1931-10-16 2426612 1931-09-27 19 SVO
-46 8.6 2427016 1932-11-04 2427002 1932-10-21 14 SVO
-45 10.7 2427414 1933-12-07 2427393 1933-11-16 21 SVO
-44 9.6 2427802 1934-12-30 2427783 1934-12-11 19 SVO
-43 10.1 2428200 1936-02-01 2428174 1936-01-06 26 SVO
-42 9.4 2428581 1937-02-16 2428564 1937-01-30 17 SVO
-41 9.4 2428964 1938-03-06 2428955 1938-02-25 9 SVO
-40 9.4 2429362 1939-04-08 2429345 1939-03-22 17 SVO
-39 10.3 2429752 1940-05-02 2429736 1940-04-16 16 SVO
-38 8.9 2430128 1941-05-13 2430126 1941-05-11 2 SVO
-37   2430503 1942-05-23 2430517 1942-06-06 -14 AAVSO
-36 8.8 2430909 1943-07-03 2430908 1943-07-02 1 SVO
-35 9.0 2431297 1944-07-25 2431298 1944-07-26 -1 SVO
-34 8.7 2431688 1945-08-20 2431689 1945-08-21 -1 SVO
-33 9.8 2432083 1946-09-19 2432079 1946-09-15 4 SVO
-32 9.3 2432474 1947-10-15 2432470 1947-10-11 4 SVO
-31 8.8 2432864 1948-11-08 2432860 1948-11-04 4 SVO
-30 9.6 2433261 1949-12-10 2433251 1949-11-30 10 SVO
-29 9.5 2433654 1951-01-07 2433641 1950-12-25 13 SVO
-28 8.9 2434030 1952-01-18 2434032 1952-01-20 -2 SVO
-27 9.1 2434426 1953-02-17 2434422 1953-02-13 4 SVO
-26 9.5 2434816 1954-03-14 2434813 1954-03-11 3 SVO
-25 9.0 2435211 1955-04-13 2435204 1955-04-06 7 SVO
-24   2435592 1956-04-28 2435594 1956-04-30 -2 AAVSO
-23 9.7 2435983 1957-05-24 2435985 1957-05-26 -2 SVO
-22   2436371 1958-06-16 2436375 1958-06-20 -4 AAVSO
-21 10.2 2436761 1959-07-11 2436766 1959-07-16 -5 AAVSO
-20 9.7 2437156 1960-08-09 2437156 1960-08-09 0 SVO
-19 9.4 2437543 1961-08-31 2437547 1961-09-04 -4 SVO
-18 9.6 2437923 1962-09-15 2437937 1962-09-29 -14 SVO
-17 9.3 2438313 1963-10-10 2438328 1963-10-25 -15 SVO
-16 10.2 2438702 1964-11-02 2438718 1964-11-18 -16 SVO
-15 9.6 2439088 1965-11-23 2439109 1965-12-14 -21 SVO
-14 9.7 2439477 1966-12-17 2439500 1967-01-09 -23 SVO
-13 9.5 2439866 1968-01-10 2439890 1968-02-03 -24 SVO
-12 9.5 2440257 1969-02-04 2440281 1969-02-28 -24 SVO
-11 9.4 2440643 1970-02-25 2440671 1970-03-25 -28 SVO
-10 9.7 2441037 1971-03-26 2441062 1971-04-20 -25 SVO
-9 9.4 2441427 1972-04-19 2441452 1972-05-14 -25 SVO
-8 9.8 2441823 1973-05-20 2441843 1973-06-09 -20 SVO
-7 9.7 2442220 1974-06-21 2442233 1974-07-04 -13 SVO
-6 9.7 2442608 1975-07-14 2442624 1975-07-30 -16 SVO
-5 9.4 2443009 1976-08-18 2443014 1976-08-23 -5 SVO
-4 9.8 2443398 1977-09-11 2443405 1977-09-18 -7 SVO
-3 9.3 2443785 1978-10-03 2443795 1978-10-13 -10 SVO
-2 9.5 2444172 1979-10-25 2444186 1979-11-08 -14 SVO
-1 9.9 2444567 1980-11-23 2444577 1980-12-03 -10 SVO
0 8.6 2444950 1981-12-11 2444967 1981-12-28 -17 SVO
1 9.1 2445351 1983-01-16 2445358 1983-01-23 -7 SVO
2 9.8 2445738 1984-02-07 2445748 1984-02-17 -10 SVO
3 9.5 2446125 1985-02-28 2446139 1985-03-14 -14 SVO
4 9.4 2446517 1986-03-27 2446529 1986-04-08 -12 SVO
5 9.6 2446914 1987-04-28 2446920 1987-05-04 -6 SVO
6 9.6 2447309 1988-05-27 2447310 1988-05-28 -1 SVO
7 9.2 2447695 1989-06-17 2447701 1989-06-23 -6 SVO
8 10.0 2448093 1990-07-20 2448091 1990-07-18 2 SVO
9 9.5 2448479 1991-08-10 2448482 1991-08-13 -3 SVO
10 9.6 2448868 1992-09-02 2448873 1992-09-07 -5 SVO
11 9.4 2449260 1993-09-29 2449263 1993-10-02 -3 SVO
12 9.3 2449648 1994-10-22 2449654 1994-10-28 -6 SVO
13 9.3 2450040 1995-11-18 2450044 1995-11-22 -4 SVO
14 9.5 2450434 1996-12-16 2450435 1996-12-17 -1 SVO
15 9.5 2450824 1998-01-10 2450825 1998-01-11 -1 SVO
16 9.7 2451216 1999-02-06 2451216 1999-02-06 0 SVO
17 9.7 2451613 2000-03-09 2451606 2000-03-02 7 SVO
18 9.9 2452007 2001-04-07 2451997 2001-03-28 10 SVO
19 9.0 2452386 2002-04-21 2452387 2002-04-22 -1 SVO
20 9.4 2452778 2003-05-18 2452778 2003-05-18 0 SVO
21 10.3 2453177 2004-06-20 2453169 2004-06-12 8 SVO
22 9.0 2453562 2005-07-10 2453559 2005-07-07 3 SVO
23 10.1 2453963 2006-08-15 2453950 2006-08-02 13 SVO
24 9.3 2454361 2007-09-17 2454340 2007-08-27 21 SVO
25 9.0 2454746 2008-10-06 2454731 2008-09-21 15 SVO
26 8.8 2455139 2009-11-03 2455121 2009-10-16 18 SVO
27 9.3 2455527 2010-11-26 2455512 2010-11-11 15 SVO
28 9.2 2455923 2011-12-27 2455902 2011-12-06 21 SVO
29 9.1 2456318 2013-01-25 2456293 2012-12-31 25 SVO
30 9.2 2456701 2014-02-12 2456683 2014-01-25 18 SVO
31 9.4 2457085 2015-03-03 2457074 2015-02-20 11 SVO
32 8.6 2457479 2016-03-31 2457465 2016-03-17 14 SVO
33 9.1 2457864 2017-04-20 2457855 2017-04-11 9 SVO
34 9.4 2458252 2018-05-13 2458246 2018-05-07 6 SVO
35 9.3 2458645 2019-06-10 2458636 2019-06-01 9 SVO
36 9.1 2459019 2020-06-18 2459027 2020-06-26 -8 SVO
37 9.4 2459407 2021-07-11 2459417 2021-07-21 -10 SVO
38 9.1 2459791 2022-07-30 2459808 2022-08-16 -17 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.