Maxima for RY Lyr
Period: 325.89, Epoch: 2445330.8
AAVSO offset: 4

E Mag O (JD) O (dat) C (JD) C (Dat) O-C Source
-92   2415316 1900-10-23 2415349 1900-11-25 -33 AnHar, 1909, vol 55, p 95
-91   2415655 1901-09-27 2415675 1901-10-17 -20 SVO
-89   2416300 1903-07-04 2416326 1903-07-30 -26 SVO
-88   2416642 1904-06-10 2416652 1904-06-20 -10 AnHar, 1909, vol 55, p 95
-87   2416978 1905-05-12 2416978 1905-05-12 0 AAVSO
-86   2417281 1906-03-11 2417304 1906-04-03 -23 AAVSO
-85   2417615 1907-02-08 2417630 1907-02-23 -15 AAVSO
-84   2417938 1907-12-28 2417956 1908-01-15 -18 AAVSO
-83 9.5 2418285 1908-12-09 2418282 1908-12-06 3 AAVSO
-82 9.8 2418605 1909-10-25 2418608 1909-10-28 -3 AAVSO
-81 10.0 2418939 1910-09-24 2418934 1910-09-19 5 AAVSO
-80 9.9 2419258 1911-08-09 2419259 1911-08-10 -1 SVO
-79 10.0 2419592 1912-07-08 2419585 1912-07-01 7 SVO
-78 9.4 2419907 1913-05-19 2419911 1913-05-23 -4 AAVSO
-77 9.1 2420233 1914-04-10 2420237 1914-04-14 -4 AAVSO
-76   2420560 1915-03-03 2420563 1915-03-06 -3 SVO
-75   2420899 1916-02-05 2420889 1916-01-26 10 AAVSO
-74   2421233 1917-01-04 2421215 1916-12-17 18 AAVSO
-73 9.4 2421549 1917-11-16 2421541 1917-11-08 8 AAVSO
-72 9.9 2421866 1918-09-29 2421867 1918-09-30 -1 SVO
-71 9.3 2422201 1919-08-30 2422192 1919-08-21 9 SVO
-70   2422529 1920-07-23 2422518 1920-07-12 11 AAVSO
-69 10.4 2422856 1921-06-15 2422844 1921-06-03 12 AAVSO
-68 9.8 2423184 1922-05-09 2423170 1922-04-25 14 AAVSO
-67 10.4 2423512 1923-04-02 2423496 1923-03-17 16 AAVSO
-66 10.4 2423835 1924-02-19 2423822 1924-02-06 13 AAVSO
-65 10.8 2424168 1925-01-17 2424148 1924-12-28 20 AAVSO
-64 11.0 2424502 1925-12-17 2424474 1925-11-19 28 AAVSO
-63 9.6 2424812 1926-10-23 2424800 1926-10-11 12 AAVSO
-62 10.7 2425144 1927-09-20 2425125 1927-09-01 19 AAVSO
-61 10.1 2425473 1928-08-14 2425451 1928-07-23 22 AAVSO
-60 10.3 2425795 1929-07-02 2425777 1929-06-14 18 SVO
-59 9.8 2426116 1930-05-19 2426103 1930-05-06 13 SVO
-58 10.5 2426442 1931-04-10 2426429 1931-03-28 13 SVO
-57 9.9 2426768 1932-03-01 2426755 1932-02-17 13 SVO
-56 10.3 2427086 1933-01-13 2427081 1933-01-08 5 SVO
-55 9.4 2427419 1933-12-12 2427407 1933-11-30 12 AAVSO
-54 10.2 2427743 1934-11-01 2427733 1934-10-22 10 SVO
-53 10.4 2428064 1935-09-18 2428059 1935-09-13 5 SVO
-52 9.7 2428390 1936-08-09 2428384 1936-08-03 6 SVO
-51 9.4 2428714 1937-06-29 2428710 1937-06-25 4 SVO
-50 9.9 2429031 1938-05-12 2429036 1938-05-17 -5 AAVSO
-49 10.2 2429363 1939-04-09 2429362 1939-04-08 1 AAVSO
-48   2429684 1940-02-24 2429688 1940-02-28 -4 AAVSO
-47 9.5 2430008 1941-01-13 2430014 1941-01-19 -6 SVO
-46 9.3 2430335 1941-12-06 2430340 1941-12-11 -5 AAVSO
-45 10.3 2430671 1942-11-07 2430666 1942-11-02 5 SVO
-44 9.6 2430997 1943-09-29 2430992 1943-09-24 5 SVO
-43 10.4 2431326 1944-08-23 2431317 1944-08-14 9 SVO
-42 9.9 2431652 1945-07-15 2431643 1945-07-06 9 SVO
-41 9.0 2431975 1946-06-03 2431969 1946-05-28 6 AAVSO
-40 9.5 2432283 1947-04-07 2432295 1947-04-19 -12 AAVSO
-39   2432613 1948-03-02 2432621 1948-03-10 -8 AAVSO
-38   2432947 1949-01-30 2432947 1949-01-30 0 AAVSO
-37 9.6 2433264 1949-12-13 2433273 1949-12-22 -9 SVO
-36 10.0 2433598 1950-11-12 2433599 1950-11-13 -1 AAVSO
-35 10.4 2433917 1951-09-27 2433925 1951-10-05 -8 SVO
-34 9.5 2434230 1952-08-05 2434250 1952-08-25 -20 SVO
-33 9.9 2434559 1953-06-30 2434576 1953-07-17 -17 SVO
-32 10.2 2434883 1954-05-20 2434902 1954-06-08 -19 AAVSO
-31 9.6 2435214 1955-04-16 2435228 1955-04-30 -14 SVO
-30 10.6 2435533 1956-02-29 2435554 1956-03-21 -21 AAVSO
-29 10.1 2435869 1957-01-30 2435880 1957-02-10 -11 SVO
-28 10.4 2436198 1957-12-25 2436206 1958-01-02 -8 SVO
-27 9.6 2436514 1958-11-06 2436532 1958-11-24 -18 SVO
-26 10.0 2436842 1959-09-30 2436858 1959-10-16 -16 SVO
-25 9.9 2437173 1960-08-26 2437184 1960-09-06 -11 SVO
-24 10.1 2437498 1961-07-17 2437509 1961-07-28 -11 SVO
-23 9.7 2437824 1962-06-08 2437835 1962-06-19 -11 SVO
-22 9.5 2438149 1963-04-29 2438161 1963-05-11 -12 SVO
-21 9.8 2438486 1964-03-31 2438487 1964-04-01 -1 AAVSO
-20 10.0 2438816 1965-02-24 2438813 1965-02-21 3 AAVSO
-19 9.7 2439148 1966-01-22 2439139 1966-01-13 9 SVO
-18 9.9 2439476 1966-12-16 2439465 1966-12-05 11 SVO
-17 9.5 2439802 1967-11-07 2439791 1967-10-27 11 SVO
-16 9.9 2440138 1968-10-08 2440117 1968-09-17 21 SVO
-15 9.5 2440462 1969-08-28 2440442 1969-08-08 20 SVO
-14 10.5 2440791 1970-07-23 2440768 1970-06-30 23 SVO
-13 9.8 2441119 1971-06-16 2441094 1971-05-22 25 SVO
-12 10.6 2441448 1972-05-10 2441420 1972-04-12 28 SVO
-11 9.4 2441770 1973-03-28 2441746 1973-03-04 24 AAVSO
-10 10.9 2442096 1974-02-17 2442072 1974-01-24 24 AAVSO
-9 9.6 2442407 1974-12-25 2442398 1974-12-16 9 SVO
-8 10.2 2442735 1975-11-18 2442724 1975-11-07 11 SVO
-7 9.7 2443052 1976-09-30 2443050 1976-09-28 2 SVO
-6 9.7 2443376 1977-08-20 2443375 1977-08-19 1 SVO
-5 9.8 2443696 1978-07-06 2443701 1978-07-11 -5 SVO
-4 9.4 2444016 1979-05-22 2444027 1979-06-02 -11 SVO
-3 10.0 2444343 1980-04-13 2444353 1980-04-23 -10 AAVSO
-2 9.6 2444663 1981-02-27 2444679 1981-03-15 -16 SVO
-1 9.6 2444979 1982-01-09 2445005 1982-02-04 -26 SVO
0 9.5 2445313 1982-12-09 2445331 1982-12-27 -18 SVO
1 9.5 2445633 1983-10-25 2445657 1983-11-18 -24 SVO
2 9.9 2445963 1984-09-19 2445983 1984-10-09 -20 SVO
3 9.7 2446286 1985-08-08 2446309 1985-08-31 -23 SVO
4 9.6 2446614 1986-07-02 2446634 1986-07-22 -20 SVO
5 10.1 2446944 1987-05-28 2446960 1987-06-13 -16 SVO
6 9.8 2447267 1988-04-15 2447286 1988-05-04 -19 SVO
7 10.2 2447593 1989-03-07 2447612 1989-03-26 -19 SVO
8 10.0 2447926 1990-02-03 2447938 1990-02-15 -12 SVO
9 9.9 2448248 1990-12-22 2448264 1991-01-07 -16 SVO
10 9.8 2448578 1991-11-17 2448590 1991-11-29 -12 SVO
11 9.6 2448900 1992-10-04 2448916 1992-10-20 -16 SVO
12 9.5 2449228 1993-08-28 2449242 1993-09-11 -14 SVO
13 9.9 2449563 1994-07-29 2449567 1994-08-02 -4 SVO
14 9.7 2449885 1995-06-16 2449893 1995-06-24 -8 SVO
15 9.8 2450207 1996-05-03 2450219 1996-05-15 -12 SVO
16 9.6 2450536 1997-03-28 2450545 1997-04-06 -9 SVO
17 10.2 2450865 1998-02-20 2450871 1998-02-26 -6 SVO
18 9.6 2451190 1999-01-11 2451197 1999-01-18 -7 SVO
19 10.4 2451517 1999-12-04 2451523 1999-12-10 -6 SVO
20 9.5 2451845 2000-10-27 2451849 2000-10-31 -4 SVO
21 10.3 2452172 2001-09-19 2452175 2001-09-22 -3 SVO
22 10.0 2452499 2002-08-12 2452500 2002-08-13 -1 SVO
23 9.7 2452823 2003-07-02 2452826 2003-07-05 -3 SVO
24 10.2 2453151 2004-05-25 2453152 2004-05-26 -1 SVO
25   2453477 2005-04-16 2453478 2005-04-17 -1 AAVSO
26   2453805 2006-03-10 2453804 2006-03-09 1 AAVSO
27 10.0 2454136 2007-02-04 2454130 2007-01-29 6 SVO
28 9.6 2454468 2008-01-02 2454456 2007-12-21 12 SVO
29 10.6 2454797 2008-11-26 2454782 2008-11-11 15 SVO
30 9.8 2455121 2009-10-16 2455108 2009-10-03 13 SVO
31 10.5 2455455 2010-09-15 2455434 2010-08-25 21 SVO
32 9.6 2455784 2011-08-10 2455759 2011-07-16 25 SVO
33 10.4 2456112 2012-07-03 2456085 2012-06-06 27 SVO
34 9.8 2456438 2013-05-25 2456411 2013-04-28 27 SVO
35 9.9 2456767 2014-04-19 2456737 2014-03-20 30 SVO
36   2457080 2015-02-26 2457063 2015-02-09 17 SVO
37 9.7 2457409 2016-01-21 2457389 2016-01-01 20 SVO
38 10.0 2457732 2016-12-09 2457715 2016-11-22 17 SVO
39 9.5 2458044 2017-10-17 2458041 2017-10-14 3 SVO
40 10.4 2458368 2018-09-06 2458367 2018-09-05 1 SVO
41 9.8 2458689 2019-07-24 2458692 2019-07-27 -3 SVO
42 9.9 2459007 2020-06-06 2459018 2020-06-17 -11 SVO
43 9.9 2459325 2021-04-20 2459344 2021-05-09 -19 SVO
44 10.2 2459656 2022-03-17 2459670 2022-03-31 -14 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.