Maxima for RY Cep
Period: 149.46, Epoch: 2444565.7

E Mag O (JD) O (dat) C (JD) C (Dat) O-C Source
-221   2411585 1890-08-05 2411535 1890-06-16 50 SVO
-213   2412785 1893-11-17 2412731 1893-09-24 54 SVO
-211   2413080 1894-09-08 2413030 1894-07-20 50 SVO
-206   2413841 1896-10-08 2413777 1896-08-05 64 AN, 1913, vol 193, p 319
-205   2413970 1897-02-14 2413926 1897-01-01 44 SVO
-202   2414423 1898-05-13 2414375 1898-03-26 48 AN, 1913, vol 193, p 319
-200   2414715 1899-03-01 2414674 1899-01-19 41 SVO
-199   2414875 1899-08-08 2414823 1899-06-17 52 SVO
-198   2415025 1900-01-05 2414973 1899-11-14 52 SVO
-197   2415143 1900-05-03 2415122 1900-04-12 21 AN, 1913, vol 193, p 319
-195   2415460 1901-03-16 2415421 1901-02-05 39 SVO
-194   2415613 1901-08-16 2415571 1901-07-05 42 AN, 1913, vol 193, p 319
-193   2415768 1902-01-18 2415720 1901-12-01 48 SVO
-192   2415915 1902-06-14 2415869 1902-04-29 46 SVO
-191   2416078 1902-11-24 2416019 1902-09-26 59 SVO
-189   2416365 1903-09-07 2416318 1903-07-22 47 SVO
-188   2416520 1904-02-09 2416467 1903-12-18 53 SVO
-187   2416663 1904-07-01 2416617 1904-05-16 46 SVO
-186   2416809 1904-11-24 2416766 1904-10-12 43 SVO
-184   2417105 1905-09-16 2417065 1905-08-07 40 SVO
-183   2417245 1906-02-03 2417215 1906-01-04 30 SVO
-181   2417545 1906-11-30 2417513 1906-10-29 32 SVO
-179   2417839 1907-09-20 2417812 1907-08-24 27 SVO
-178   2417985 1908-02-13 2417962 1908-01-21 23 SVO
-176   2418287 1908-12-11 2418261 1908-11-15 26 SVO
-175   2418424 1909-04-27 2418410 1909-04-13 14 AN, 1913, vol 193, p 319
-174   2418580 1909-09-30 2418560 1909-09-10 20 AN, 1913, vol 193, p 319
-173   2418720 1910-02-17 2418709 1910-02-06 11 AN, 1913, vol 193, p 319
-172   2418865 1910-07-12 2418859 1910-07-06 6 SVO
-171   2419022 1910-12-16 2419008 1910-12-02 14 SVO
-169   2419320 1911-10-10 2419307 1911-09-27 13 SVO
-166   2419780 1913-01-12 2419755 1912-12-18 25 SVO
-164   2420070 1913-10-29 2420054 1913-10-13 16 SVO
-163   2420220 1914-03-28 2420204 1914-03-12 16 SVO
-161   2420517 1915-01-19 2420503 1915-01-05 14 SVO
-159   2420813 1915-11-11 2420802 1915-10-31 11 SVO
-158   2420955 1916-04-01 2420951 1916-03-28 4 SVO
-157   2421102 1916-08-26 2421101 1916-08-25 1 SVO
-156   2421253 1917-01-24 2421250 1917-01-21 3 SVO
-154   2421561 1917-11-28 2421549 1917-11-16 12 SVO
-153   2421700 1918-04-16 2421698 1918-04-14 2 SVO
-152   2421835 1918-08-29 2421848 1918-09-11 -13 SVO
-151   2421990 1919-01-31 2421997 1919-02-07 -7 SVO
-150   2422150 1919-07-10 2422147 1919-07-07 3 SVO
-149   2422296 1919-12-03 2422296 1919-12-03 0 SVO
-147   2422601 1920-10-03 2422595 1920-09-27 6 SVO
-146   2422741 1921-02-20 2422745 1921-02-24 -4 SVO
-145   2422890 1921-07-19 2422894 1921-07-23 -4 SVO
-144   2423040 1921-12-16 2423043 1921-12-19 -3 SVO
-142   2423340 1922-10-12 2423342 1922-10-14 -2 SVO
-141   2423490 1923-03-11 2423492 1923-03-13 -2 SVO
-140   2423645 1923-08-13 2423641 1923-08-09 4 SVO
-139   2423785 1923-12-31 2423791 1924-01-06 -6 SVO
-137   2424087 1924-10-28 2424090 1924-10-31 -3 SVO
-135   2424381 1925-08-18 2424389 1925-08-26 -8 SVO
-134   2424520 1926-01-04 2424538 1926-01-22 -18 SVO
-132   2424825 1926-11-05 2424837 1926-11-17 -12 SVO
-130   2425112 1927-08-19 2425136 1927-09-12 -24 SVO
-127   2425570 1928-11-19 2425584 1928-12-03 -14 SVO
-126   2425708 1929-04-06 2425734 1929-05-02 -26 AN, 1936, vol 259, p 101
-125   2425857 1929-09-02 2425883 1929-09-28 -26 SVO
-124   2426005 1930-01-28 2426033 1930-02-25 -28 SVO
-123   2426155 1930-06-27 2426182 1930-07-24 -27 SVO
-122   2426306 1930-11-25 2426332 1930-12-21 -26 SVO
-120   2426594 1931-09-09 2426631 1931-10-16 -37 SVO
-119   2426752 1932-02-14 2426780 1932-03-13 -28 SVO
-118   2426904 1932-07-15 2426929 1932-08-09 -25 SVO
-117   2427049 1932-12-07 2427079 1933-01-06 -30 AN, 1936, vol 259, p 101
-115   2427349 1933-10-03 2427378 1933-11-01 -29 AN, 1936, vol 259, p 101
-113   2427656 1934-08-06 2427677 1934-08-27 -21 SVO
-112   2427821 1935-01-18 2427826 1935-01-23 -5 SVO
-111   2427964 1935-06-10 2427976 1935-06-22 -12 SVO
-110   2428112 1935-11-05 2428125 1935-11-18 -13 SVO
-108   2428411 1936-08-30 2428424 1936-09-12 -13 SVO
-107   2428568 1937-02-03 2428573 1937-02-08 -5 SVO
-106   2428700 1937-06-15 2428723 1937-07-08 -23 SVO
-105   2428855 1937-11-17 2428872 1937-12-04 -17 SVO
-103   2429151 1938-09-09 2429171 1938-09-29 -20 SVO
-102   2429309 1939-02-14 2429321 1939-02-26 -12 SVO
-101   2429456 1939-07-11 2429470 1939-07-25 -14 SVO
-100   2429603 1939-12-05 2429620 1939-12-22 -17 SVO
-99   2429757 1940-05-07 2429769 1940-05-19 -12 SVO
-98   2429909 1940-10-06 2429919 1940-10-16 -10 SVO
-97   2430050 1941-02-24 2430068 1941-03-14 -18 SVO
-96   2430200 1941-07-24 2430218 1941-08-11 -18 SVO
-95   2430357 1941-12-28 2430367 1942-01-07 -10 SVO
-94   2430505 1942-05-25 2430516 1942-06-05 -11 SVO
-93   2430656 1942-10-23 2430666 1942-11-02 -10 SVO
-92   2430799 1943-03-15 2430815 1943-03-31 -16 SVO
-91   2430946 1943-08-09 2430965 1943-08-28 -19 SVO
-90   2431085 1943-12-26 2431114 1944-01-24 -29 SVO
-89   2431240 1944-05-29 2431264 1944-06-22 -24 SVO
-88   2431383 1944-10-19 2431413 1944-11-18 -30 SVO
-87   2431535 1945-03-20 2431563 1945-04-17 -28 SVO
-86   2431688 1945-08-20 2431712 1945-09-13 -24 SVO
-85   2431825 1946-01-04 2431862 1946-02-10 -37 SVO
-84   2431983 1946-06-11 2432011 1946-07-09 -28 SVO
-83   2432137 1946-11-12 2432161 1946-12-06 -24 SVO
-82   2432285 1947-04-09 2432310 1947-05-04 -25 PCopO, 1955, vol 167, p 1
-81   2432432 1947-09-03 2432459 1947-09-30 -27 PCopO, 1955, vol 167, p 1
-80   2432600 1948-02-18 2432609 1948-02-27 -9 PCopO, 1955, vol 167, p 1
-79   2432730 1948-06-27 2432758 1948-07-25 -28 SVO
-78   2432890 1948-12-04 2432908 1948-12-22 -18 PCopO, 1955, vol 167, p 1
-77   2433030 1949-04-23 2433057 1949-05-20 -27 SVO
-76   2433186 1949-09-26 2433207 1949-10-17 -21 SVO
-75   2433341 1950-02-28 2433356 1950-03-15 -15 PCopO, 1955, vol 167, p 1
-74   2433491 1950-07-28 2433506 1950-08-12 -15 SVO
-73   2433632 1950-12-16 2433655 1951-01-08 -23 PCopO, 1955, vol 167, p 1
-72   2433782 1951-05-15 2433805 1951-06-07 -23 PCopO, 1955, vol 167, p 1
-71   2433943 1951-10-23 2433954 1951-11-03 -11 PCopO, 1955, vol 167, p 1
-70   2434082 1952-03-10 2434103 1952-03-31 -21 PCopO, 1955, vol 167, p 1
-69   2434240 1952-08-15 2434253 1952-08-28 -13 SVO
-68   2434389 1953-01-11 2434402 1953-01-24 -13 PCopO, 1955, vol 167, p 1
-67   2434528 1953-05-30 2434552 1953-06-23 -24 PCopO, 1955, vol 167, p 1
-66   2434680 1953-10-29 2434701 1953-11-19 -21 PCopO, 1955, vol 167, p 1
-19   2441685 1973-01-02 2441726 1973-02-12 -41 SVO
-17   2441990 1973-11-03 2442025 1973-12-08 -35 SVO
-16   2442140 1974-04-02 2442174 1974-05-06 -34 SVO
-15   2442290 1974-08-30 2442324 1974-10-03 -34 SVO
-14   2442439 1975-01-26 2442473 1975-03-01 -34 SVO
-13   2442595 1975-07-01 2442623 1975-07-29 -28 SVO
-12   2442751 1975-12-04 2442772 1975-12-25 -21 SVO
-10   2443050 1976-09-28 2443071 1976-10-19 -21 SVO
-9   2443195 1977-02-20 2443221 1977-03-18 -26 SVO
-8   2443350 1977-07-25 2443370 1977-08-14 -20 SVO
-7   2443485 1977-12-07 2443519 1978-01-10 -34 SVO
-6   2443640 1978-05-11 2443669 1978-06-09 -29 SVO
-5   2443800 1978-10-18 2443818 1978-11-05 -18 SVO
-4   2443930 1979-02-25 2443968 1979-04-04 -38 SVO
-3   2444080 1979-07-25 2444117 1979-08-31 -37 SVO
-2   2444235 1979-12-27 2444267 1980-01-28 -32 SVO
-1   2444385 1980-05-25 2444416 1980-06-25 -31 SVO
0   2444540 1980-10-27 2444566 1980-11-22 -26 SVO
1   2444690 1981-03-26 2444715 1981-04-20 -25 SVO
2   2444835 1981-08-18 2444865 1981-09-17 -30 SVO
3   2444979 1982-01-09 2445014 1982-02-13 -35 SVO
4   2445135 1982-06-14 2445164 1982-07-13 -29 SVO
5 9.7 2445287 1982-11-13 2445313 1982-12-09 -26 SVO
6   2445435 1983-04-10 2445462 1983-05-07 -27 SVO
7 9.7 2445592 1983-09-14 2445612 1983-10-04 -20 SVO
8   2445735 1984-02-04 2445761 1984-03-01 -26 SVO
9   2445883 1984-07-01 2445911 1984-07-29 -28 SVO
10   2446035 1984-11-30 2446060 1984-12-25 -25 SVO
11   2446180 1985-04-24 2446210 1985-05-24 -30 SVO
12   2446333 1985-09-24 2446359 1985-10-20 -26 SVO
13   2446484 1986-02-22 2446509 1986-03-19 -25 SVO
14   2446630 1986-07-18 2446658 1986-08-15 -28 SVO
15 9.8 2446776 1986-12-11 2446808 1987-01-12 -32 SVO
17 9.9 2447084 1987-10-15 2447106 1987-11-06 -22 SVO
18   2447240 1988-03-19 2447256 1988-04-04 -16 SVO
19   2447390 1988-08-16 2447405 1988-08-31 -15 SVO
20   2447525 1988-12-29 2447555 1989-01-28 -30 SVO
22 10.1 2447847 1989-11-16 2447854 1989-11-23 -7 SVO
23 9.9 2447984 1990-04-02 2448003 1990-04-21 -19 SVO
24   2448130 1990-08-26 2448153 1990-09-18 -23 SVO
25   2448275 1991-01-18 2448302 1991-02-14 -27 SVO
26   2448425 1991-06-17 2448452 1991-07-14 -27 SVO
27   2448575 1991-11-14 2448601 1991-12-10 -26 SVO
28   2448730 1992-04-17 2448751 1992-05-08 -21 SVO
30   2449020 1993-02-01 2449049 1993-03-02 -29 SVO
31   2449170 1993-07-01 2449199 1993-07-30 -29 AFOEV
32   2449320 1993-11-28 2449348 1993-12-26 -28 SVO
36 10.1 2449934 1995-08-04 2449946 1995-08-16 -12 SVO
37   2450075 1995-12-23 2450096 1996-01-13 -21 AFOEV
38 9.9 2450214 1996-05-10 2450245 1996-06-10 -31 SVO
39 9.9 2450365 1996-10-08 2450395 1996-11-07 -30 SVO
40 9.8 2450511 1997-03-03 2450544 1997-04-05 -33 SVO
41 10.2 2450682 1997-08-21 2450694 1997-09-02 -12 SVO
42   2450830 1998-01-16 2450843 1998-01-29 -13 AFOEV
43 9.8 2450962 1998-05-28 2450992 1998-06-27 -30 SVO
44 9.8 2451112 1998-10-25 2451142 1998-11-24 -30 SVO
45   2451264 1999-03-26 2451291 1999-04-22 -27 AFOEV
46 9.9 2451429 1999-09-07 2451441 1999-09-19 -12 SVO
47 9.8 2451571 2000-01-27 2451590 2000-02-15 -19 SVO
48 9.8 2451719 2000-06-23 2451740 2000-07-14 -21 SVO
49 10.0 2451874 2000-11-25 2451889 2000-12-10 -15 SVO
50   2452040 2001-05-10 2452039 2001-05-09 1 AFOEV
51 9.8 2452182 2001-09-29 2452188 2001-10-05 -6 SVO
52 9.7 2452321 2002-02-15 2452338 2002-03-04 -17 SVO
53 10.3 2452480 2002-07-24 2452487 2002-07-31 -7 SVO
54 10.0 2452636 2002-12-27 2452636 2002-12-27 0 SVO
55 9.8 2452786 2003-05-26 2452786 2003-05-26 0 SVO
56 9.8 2452941 2003-10-28 2452935 2003-10-22 6 SVO
57 9.7 2453094 2004-03-29 2453085 2004-03-20 9 SVO
58   2453251 2004-09-02 2453234 2004-08-16 17 AFOEV
59 9.9 2453396 2005-01-25 2453384 2005-01-13 12 SVO
60 9.9 2453545 2005-06-23 2453533 2005-06-11 12 SVO
61 10.0 2453700 2005-11-25 2453683 2005-11-08 17 SVO
62 9.9 2453857 2006-05-01 2453832 2006-04-06 25 SVO
63 9.9 2453998 2006-09-19 2453982 2006-09-03 16 SVO
64 9.9 2454142 2007-02-10 2454131 2007-01-30 11 SVO
65 9.9 2454292 2007-07-10 2454281 2007-06-29 11 SVO
66 9.9 2454445 2007-12-10 2454430 2007-11-25 15 SVO
67 10.2 2454599 2008-05-12 2454579 2008-04-22 20 SVO
68 9.8 2454738 2008-09-28 2454729 2008-09-19 9 SVO
69 10.1 2454899 2009-03-08 2454878 2009-02-15 21 SVO
70 9.7 2455040 2009-07-27 2455028 2009-07-15 12 SVO
71 10.0 2455189 2009-12-23 2455177 2009-12-11 12 SVO
72 10.3 2455348 2010-05-31 2455327 2010-05-10 21 SVO
73 9.9 2455496 2010-10-26 2455476 2010-10-06 20 SVO
74 10.3 2455656 2011-04-04 2455626 2011-03-05 30 SVO
75 9.6 2455796 2011-08-22 2455775 2011-08-01 21 SVO
76 9.7 2455948 2012-01-21 2455925 2011-12-29 23 SVO
77 9.7 2456103 2012-06-24 2456074 2012-05-26 29 SVO
78 9.5 2456250 2012-11-18 2456224 2012-10-23 26 SVO
79 9.9 2456403 2013-04-20 2456373 2013-03-21 30 SVO
80 9.8 2456556 2013-09-20 2456522 2013-08-17 34 SVO
81 9.9 2456709 2014-02-20 2456672 2014-01-14 37 SVO
82 9.6 2456858 2014-07-19 2456821 2014-06-12 37 SVO
83 9.8 2457009 2014-12-17 2456971 2014-11-09 38 SVO
84   2457155 2015-05-12 2457120 2015-04-07 35 SVO
85 9.4 2457308 2015-10-12 2457270 2015-09-04 38 SVO
86 10.1 2457464 2016-03-16 2457419 2016-01-31 45 SVO
87 9.8 2457616 2016-08-15 2457569 2016-06-29 47 SVO
88 9.6 2457757 2017-01-03 2457718 2016-11-25 39 SVO
89 10.0 2457912 2017-06-07 2457868 2017-04-24 44 SVO
90 9.6 2458063 2017-11-05 2458017 2017-09-20 46 SVO
91   2458200 2018-03-22 2458166 2018-02-16 34 SVO
92 9.4 2458354 2018-08-23 2458316 2018-07-16 38 SVO
93 9.5 2458505 2019-01-21 2458465 2018-12-12 40 SVO
94 9.6 2458657 2019-06-22 2458615 2019-05-11 42 SVO
95 9.6 2458807 2019-11-19 2458764 2019-10-07 43 SVO
96 9.6 2458950 2020-04-10 2458914 2020-03-05 36 SVO
97 10.4 2459115 2020-09-22 2459063 2020-08-01 52 SVO
98 9.8 2459252 2021-02-06 2459213 2020-12-29 39 SVO
99 9.5 2459401 2021-07-05 2459362 2021-05-27 39 SVO
100 9.5 2459553 2021-12-04 2459512 2021-10-24 41 SVO
101 9.5 2459697 2022-04-27 2459661 2022-03-22 36 SVO
102 10.1 2459866 2022-10-13 2459811 2022-08-19 55 SVO
103   2460010 2023-03-06 2459960 2023-01-15 50 SVO
104 9.6 2460142 2023-07-16 2460109 2023-06-13 33 SVO
105 9.7 2460309 2023-12-30 2460259 2023-11-10 50 SVO
106 9.8 2460453 2024-05-22 2460408 2024-04-07 45 SVO
107 9.7 2460608 2024-10-24 2460558 2024-09-04 50 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.