Maxima for RR Per
Period: 390.54, Epoch: 2444966.2
AAVSO offset: -2

E Mag O (JD) O (dat) C (JD) C (Dat) O-C Source
-76   2415280 1900-09-17 2415285 1900-09-22 -5 SVO
-75   2415660 1901-10-02 2415676 1901-10-18 -16 SVO
-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 2417238 1906-01-27 -2 GuL, 1918, 1.1, AnHar, 1909, vol 55, p 95
-70 8.7 2417610 1907-02-03 2417629 1907-02-22 -19 AAVSO
-69   2418010 1908-03-09 2418019 1908-03-18 -9 SVO
-68 8.5 2418396 1909-03-30 2418410 1909-04-13 -14 AAVSO
-67 9.3 2418793 1910-05-01 2418800 1910-05-08 -7 SVO
-66 9.0 2419174 1911-05-17 2419191 1911-06-03 -17 SVO
-65 10.3 2419581 1912-06-27 2419581 1912-06-27 0 SVO
-64 9.3 2419966 1913-07-17 2419972 1913-07-23 -6 SVO
-63   2420351 1914-08-06 2420362 1914-08-17 -11 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 2421534 1917-11-01 0 SVO
-59 9.5 2421933 1918-12-05 2421925 1918-11-27 8 SVO
-58 8.9 2422323 1919-12-30 2422315 1919-12-22 8 SVO
-57 10.0 2422719 1921-01-29 2422706 1921-01-16 13 SVO
-56 9.1 2423106 1922-02-20 2423096 1922-02-10 10 SVO
-55 9.6 2423495 1923-03-16 2423487 1923-03-08 8 SVO
-54 8.8 2423881 1924-04-05 2423877 1924-04-01 4 SVO
-53 10.5 2424282 1925-05-11 2424268 1925-04-27 14 SVO
-52 9.6 2424671 1926-06-04 2424658 1926-05-22 13 SVO
-51 9.5 2425070 1927-07-08 2425049 1927-06-17 21 SVO
-50 9.4 2425465 1928-08-06 2425439 1928-07-11 26 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 2426611 1931-09-26 20 SVO
-46 8.6 2427016 1932-11-04 2427002 1932-10-21 14 SVO
-45 10.7 2427414 1933-12-07 2427392 1933-11-15 22 SVO
-44 9.6 2427802 1934-12-30 2427783 1934-12-11 19 SVO
-43 10.1 2428200 1936-02-01 2428173 1936-01-05 27 SVO
-42 9.4 2428581 1937-02-16 2428564 1937-01-30 17 SVO
-41 9.4 2428964 1938-03-06 2428954 1938-02-24 10 SVO
-40 9.4 2429362 1939-04-08 2429345 1939-03-22 17 SVO
-39 10.3 2429752 1940-05-02 2429735 1940-04-15 17 SVO
-38 8.9 2430128 1941-05-13 2430126 1941-05-11 2 SVO
-37   2430503 1942-05-23 2430516 1942-06-05 -13 AAVSO
-36 8.8 2430909 1943-07-03 2430907 1943-07-01 2 SVO
-35 9.0 2431297 1944-07-25 2431297 1944-07-25 0 SVO
-34 8.7 2431688 1945-08-20 2431688 1945-08-20 0 SVO
-33 9.8 2432083 1946-09-19 2432079 1946-09-15 4 SVO
-32 9.3 2432474 1947-10-15 2432469 1947-10-10 5 SVO
-31 8.8 2432864 1948-11-08 2432860 1948-11-04 4 SVO
-30 9.6 2433261 1949-12-10 2433250 1949-11-29 11 SVO
-29 9.5 2433654 1951-01-07 2433641 1950-12-25 13 SVO
-28 8.9 2434030 1952-01-18 2434031 1952-01-19 -1 SVO
-27 9.1 2434426 1953-02-17 2434422 1953-02-13 4 SVO
-26 9.5 2434816 1954-03-14 2434812 1954-03-10 4 SVO
-25 9.0 2435211 1955-04-13 2435203 1955-04-05 8 SVO
-24   2435592 1956-04-28 2435593 1956-04-29 -1 AAVSO
-23 9.7 2435983 1957-05-24 2435984 1957-05-25 -1 SVO
-22   2436371 1958-06-16 2436374 1958-06-19 -3 AAVSO
-21 10.2 2436761 1959-07-11 2436765 1959-07-15 -4 AAVSO
-20 9.7 2437156 1960-08-09 2437156 1960-08-09 0 SVO
-19 9.4 2437543 1961-08-31 2437546 1961-09-03 -3 SVO
-18 9.6 2437923 1962-09-15 2437937 1962-09-29 -14 SVO
-17 9.3 2438313 1963-10-10 2438327 1963-10-24 -14 SVO
-16 10.2 2438702 1964-11-02 2438718 1964-11-18 -16 SVO
-15 9.6 2439088 1965-11-23 2439108 1965-12-13 -20 SVO
-14 9.7 2439477 1966-12-17 2439499 1967-01-08 -22 SVO
-13 9.5 2439866 1968-01-10 2439889 1968-02-02 -23 SVO
-12 9.5 2440257 1969-02-04 2440280 1969-02-27 -23 SVO
-11 9.4 2440643 1970-02-25 2440670 1970-03-24 -27 SVO
-10 9.7 2441037 1971-03-26 2441061 1971-04-19 -24 SVO
-9 9.4 2441427 1972-04-19 2441451 1972-05-13 -24 SVO
-8 9.8 2441823 1973-05-20 2441842 1973-06-08 -19 SVO
-7 9.7 2442220 1974-06-21 2442232 1974-07-03 -12 SVO
-6 9.7 2442608 1975-07-14 2442623 1975-07-29 -15 SVO
-5 9.4 2443009 1976-08-18 2443014 1976-08-23 -5 SVO
-4 9.8 2443398 1977-09-11 2443404 1977-09-17 -6 SVO
-3 9.3 2443785 1978-10-03 2443795 1978-10-13 -10 SVO
-2 9.5 2444172 1979-10-25 2444185 1979-11-07 -13 SVO
-1 9.9 2444567 1980-11-23 2444576 1980-12-02 -9 SVO
0 8.6 2444950 1981-12-11 2444966 1981-12-27 -16 SVO
1 9.1 2445351 1983-01-16 2445357 1983-01-22 -6 SVO
2 9.8 2445738 1984-02-07 2445747 1984-02-16 -9 SVO
3 9.5 2446125 1985-02-28 2446138 1985-03-13 -13 SVO
4 9.4 2446517 1986-03-27 2446528 1986-04-07 -11 SVO
5 9.6 2446914 1987-04-28 2446919 1987-05-03 -5 SVO
6 9.6 2447309 1988-05-27 2447309 1988-05-27 0 SVO
7 9.2 2447695 1989-06-17 2447700 1989-06-22 -5 SVO
8 10.0 2448093 1990-07-20 2448091 1990-07-18 2 SVO
9 9.5 2448479 1991-08-10 2448481 1991-08-12 -2 SVO
10 9.6 2448868 1992-09-02 2448872 1992-09-06 -4 SVO
11 9.4 2449260 1993-09-29 2449262 1993-10-01 -2 SVO
12 9.3 2449648 1994-10-22 2449653 1994-10-27 -5 SVO
13 9.3 2450040 1995-11-18 2450043 1995-11-21 -3 SVO
14 9.5 2450434 1996-12-16 2450434 1996-12-16 0 SVO
15 9.5 2450824 1998-01-10 2450824 1998-01-10 0 SVO
16 9.7 2451216 1999-02-06 2451215 1999-02-05 1 SVO
17 9.7 2451613 2000-03-09 2451605 2000-03-01 8 SVO
18 9.9 2452007 2001-04-07 2451996 2001-03-27 11 SVO
19 9.0 2452386 2002-04-21 2452386 2002-04-21 0 SVO
20 9.4 2452778 2003-05-18 2452777 2003-05-17 1 SVO
21 10.3 2453177 2004-06-20 2453168 2004-06-11 9 SVO
22 9.0 2453562 2005-07-10 2453558 2005-07-06 4 SVO
23 10.1 2453963 2006-08-15 2453949 2006-08-01 14 SVO
24 9.3 2454361 2007-09-17 2454339 2007-08-26 22 SVO
25 9.0 2454746 2008-10-06 2454730 2008-09-20 16 SVO
26 8.8 2455139 2009-11-03 2455120 2009-10-15 19 SVO
27 9.3 2455527 2010-11-26 2455511 2010-11-10 16 SVO
28 9.2 2455923 2011-12-27 2455901 2011-12-05 22 SVO
29 9.1 2456318 2013-01-25 2456292 2012-12-30 26 SVO
30 9.2 2456701 2014-02-12 2456682 2014-01-24 19 SVO
31 9.4 2457085 2015-03-03 2457073 2015-02-19 12 SVO
32 8.6 2457479 2016-03-31 2457463 2016-03-15 16 SVO
33 9.1 2457864 2017-04-20 2457854 2017-04-10 10 SVO
34 9.4 2458252 2018-05-13 2458244 2018-05-05 8 SVO
35 9.3 2458645 2019-06-10 2458635 2019-05-31 10 SVO
36 9.1 2459019 2020-06-18 2459026 2020-06-25 -7 SVO
37 9.4 2459407 2021-07-11 2459416 2021-07-20 -9 SVO
38 9.1 2459791 2022-07-30 2459807 2022-08-15 -16 SVO
39 9.4 2460183 2023-08-26 2460197 2023-09-09 -14 SVO
40 9.1 2460553 2024-08-30 2460588 2024-10-04 -35 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.