Maxima for W Lyr
Period: 197.88, Epoch: 2445084
Back to main page  Mean light curve  Period diagram

E Mag O (JD) O (dat) C (JD) C (Dat) O-C Source
-230   2399883 1858-07-22 2399572 1857-09-14 311 GuL, 1920, 1.2
-189   2407925 1880-07-28 2407685 1879-12-01 240 GuL, 1920, 1.2
-165   2412640 1893-06-25 2412434 1892-12-01 206 SVO
-160   2413607 1896-02-17 2413423 1895-08-17 184 GuL, 1920, 1.2
-159   2413816 1896-09-13 2413621 1896-03-02 195 AnHar, 1909, vol 55, p 95
-157   2414220 1897-10-22 2414017 1897-04-02 203 AnHar, 1909, vol 55, p 95
-156   2414416 1898-05-06 2414215 1897-10-17 201 AnHar, 1909, vol 55, p 95
-155   2414610 1898-11-16 2414413 1898-05-03 197 AnHar, 1909, vol 55, p 95
-154   2414810 1899-06-04 2414610 1898-11-16 200 AnHar, 1909, vol 55, p 95
-152   2415190 1900-06-19 2415006 1899-12-17 184 AnHar, 1952, vol 118
-150   2415580 1901-07-14 2415402 1901-01-17 178 AnHar, 1952, vol 118
-148   2415979 1902-08-17 2415798 1902-02-17 181 AnHar, 1909, vol 55, p 95
-147   2416187 1903-03-13 2415996 1902-09-03 191 GuL, 1920, 1.2, AnHar, 1952, vol 118
-146   2416378 1903-09-20 2416194 1903-03-20 184 AnHar, 1952, vol 118, GuL, 1920, 1.2
-145   2416587 1904-04-16 2416391 1903-10-03 196 AnHar, 1952, vol 118, GuL, 1920, 1.2
-144 7.6 2416783 1904-10-29 2416589 1904-04-18 194 AAVSO
-143 8.0 2416986 1905-05-20 2416787 1904-11-02 199 AAVSO
-142 8.0 2417174 1905-11-24 2416985 1905-05-19 189 AAVSO
-141   2417372 1906-06-10 2417183 1905-12-03 189 AAVSO
-140   2417568 1906-12-23 2417381 1906-06-19 187 AAVSO
-139 7.2 2417772 1907-07-15 2417579 1907-01-03 193 AAVSO
-138   2417969 1908-01-28 2417777 1907-07-20 192 AAVSO
-137 7.8 2418157 1908-08-03 2417974 1908-02-02 183 AAVSO
-136   2418367 1909-03-01 2418172 1908-08-18 195 AAVSO
-135 8.0 2418574 1909-09-24 2418370 1909-03-04 204 AAVSO
-134   2418765 1910-04-03 2418568 1909-09-18 197 AAVSO
-133 7.8 2418958 1910-10-13 2418766 1910-04-04 192 AAVSO
-132 8.3 2419161 1911-05-04 2418964 1910-10-19 197 AAVSO
-131 7.9 2419351 1911-11-10 2419162 1911-05-05 189 SVO
-130 7.5 2419544 1912-05-21 2419360 1911-11-19 184 SVO
-129 7.9 2419743 1912-12-06 2419557 1912-06-03 186 SVO
-128 7.9 2419943 1913-06-24 2419755 1912-12-18 188 SVO
-127 8.6 2420142 1914-01-09 2419953 1913-07-04 189 AAVSO
-126 7.7 2420329 1914-07-15 2420151 1914-01-18 178 SVO
-125 7.8 2420517 1915-01-19 2420349 1914-08-04 168 SVO
-124 8.4 2420718 1915-08-08 2420547 1915-02-18 171 SVO
-123 7.9 2420912 1916-02-18 2420745 1915-09-04 167 SVO
-122 7.8 2421101 1916-08-25 2420943 1916-03-20 158 SVO
-121 7.8 2421296 1917-03-08 2421141 1916-10-04 155 SVO
-120 8.0 2421496 1917-09-24 2421338 1917-04-19 158 SVO
-119 7.7 2421690 1918-04-06 2421536 1917-11-03 154 SVO
-118 7.8 2421888 1918-10-21 2421734 1918-05-20 154 SVO
-117 8.2 2422087 1919-05-08 2421932 1918-12-04 155 SVO
-116 7.8 2422282 1919-11-19 2422130 1919-06-20 152 SVO
-115 7.9 2422473 1920-05-28 2422328 1920-01-04 145 SVO
-114 8.0 2422673 1920-12-14 2422526 1920-07-20 147 SVO
-113 7.9 2422868 1921-06-27 2422724 1921-02-03 144 SVO
-112 7.9 2423058 1922-01-03 2422921 1921-08-19 137 SVO
-111 8.1 2423265 1922-07-29 2423119 1922-03-05 146 SVO
-110 7.7 2423457 1923-02-06 2423317 1922-09-19 140 SVO
-109 7.9 2423655 1923-08-23 2423515 1923-04-05 140 SVO
-108 7.9 2423850 1924-03-05 2423713 1923-10-20 137 SVO
-107 7.7 2424034 1924-09-05 2423911 1924-05-05 123 SVO
-106 8.0 2424223 1925-03-13 2424109 1924-11-19 114 SVO
-105 8.2 2424422 1925-09-28 2424307 1925-06-05 115 SVO
-104 7.9 2424615 1926-04-09 2424504 1925-12-19 111 SVO
-103 7.8 2424804 1926-10-15 2424702 1926-07-05 102 SVO
-102 7.8 2424996 1927-04-25 2424900 1927-01-19 96 SVO
-101 7.7 2425190 1927-11-05 2425098 1927-08-05 92 SVO
-100 8.0 2425388 1928-05-21 2425296 1928-02-19 92 SVO
-99 7.9 2425586 1928-12-05 2425494 1928-09-04 92 SVO
-98 7.8 2425782 1929-06-19 2425692 1929-03-21 90 SVO
-97 7.7 2425974 1929-12-28 2425890 1929-10-05 84 SVO
-96 7.7 2426165 1930-07-07 2426088 1930-04-21 77 SVO
-95 7.9 2426362 1931-01-20 2426285 1930-11-04 77 SVO
-94 8.0 2426564 1931-08-10 2426483 1931-05-21 81 SVO
-93 8.4 2426771 1932-03-04 2426681 1931-12-05 90 SVO
-92 7.9 2426961 1932-09-10 2426879 1932-06-20 82 SVO
-91 7.9 2427156 1933-03-24 2427077 1933-01-04 79 SVO
-90 8.0 2427355 1933-10-09 2427275 1933-07-21 80 SVO
-89 8.0 2427552 1934-04-24 2427473 1934-02-04 79 SVO
-88 7.7 2427748 1934-11-06 2427671 1934-08-21 77 SVO
-87 8.1 2427950 1935-05-27 2427868 1935-03-06 82 SVO
-86 7.7 2428150 1935-12-13 2428066 1935-09-20 84 SVO
-85 8.0 2428343 1936-06-23 2428264 1936-04-05 79 SVO
-84 7.7 2428538 1937-01-04 2428462 1936-10-20 76 SVO
-83 7.9 2428735 1937-07-20 2428660 1937-05-06 75 SVO
-82 8.1 2428941 1938-02-11 2428858 1937-11-20 83 SVO
-81 7.9 2429142 1938-08-31 2429056 1938-06-06 86 SVO
-80 7.8 2429333 1939-03-10 2429254 1938-12-21 79 SVO
-79 7.7 2429523 1939-09-16 2429451 1939-07-06 72 SVO
-78 7.9 2429724 1940-04-04 2429649 1940-01-20 75 SVO
-77 8.0 2429929 1940-10-26 2429847 1940-08-05 82 SVO
-76 7.9 2430131 1941-05-16 2430045 1941-02-19 86 SVO
-75 8.0 2430341 1941-12-12 2430243 1941-09-05 98 SVO
-74 7.8 2430530 1942-06-19 2430441 1942-03-22 89 SVO
-73 7.7 2430725 1942-12-31 2430639 1942-10-06 86 AAVSO
-72 7.9 2430927 1943-07-21 2430837 1943-04-22 90 SVO
-71 7.9 2431131 1944-02-10 2431035 1943-11-06 96 SVO
-70 7.9 2431326 1944-08-23 2431232 1944-05-21 94 SVO
-69 8.1 2431520 1945-03-05 2431430 1944-12-05 90 AAVSO
-68 7.6 2431715 1945-09-16 2431628 1945-06-21 87 SVO
-67 8.3 2431916 1946-04-05 2431826 1946-01-05 90 SVO
-66 7.8 2432110 1946-10-16 2432024 1946-07-22 86 SVO
-65 8.1 2432306 1947-04-30 2432222 1947-02-05 84 SVO
-64 7.8 2432494 1947-11-04 2432420 1947-08-22 74 SVO
-63 7.8 2432689 1948-05-17 2432618 1948-03-07 71 SVO
-62 8.0 2432879 1948-11-23 2432815 1948-09-20 64 SVO
-61 8.1 2433079 1949-06-11 2433013 1949-04-06 66 SVO
-60 7.9 2433277 1949-12-26 2433211 1949-10-21 66 SVO
-59 7.9 2433470 1950-07-07 2433409 1950-05-07 61 SVO
-58 8.0 2433664 1951-01-17 2433607 1950-11-21 57 AAVSO
-57 8.3 2433855 1951-07-27 2433805 1951-06-07 50 SVO
-56 8.0 2434052 1952-02-09 2434003 1951-12-22 49 SVO
-55 8.0 2434246 1952-08-21 2434201 1952-07-07 45 SVO
-54 7.7 2434443 1953-03-06 2434398 1953-01-20 45 AAVSO
-53 8.1 2434637 1953-09-16 2434596 1953-08-06 41 SVO
-52 8.4 2434832 1954-03-30 2434794 1954-02-20 38 SVO
-51 8.1 2435028 1954-10-12 2434992 1954-09-06 36 SVO
-50 8.0 2435221 1955-04-23 2435190 1955-03-23 31 AAVSO
-49 7.7 2435416 1955-11-04 2435388 1955-10-07 28 SVO
-48 7.9 2435611 1956-05-17 2435586 1956-04-22 25 SVO
-47 7.8 2435807 1956-11-29 2435784 1956-11-06 23 SVO
-46 8.4 2436008 1957-06-18 2435982 1957-05-23 26 SVO
-45 7.6 2436203 1957-12-30 2436179 1957-12-06 24 AAVSO
-44 8.3 2436410 1958-07-25 2436377 1958-06-22 33 SVO
-43 8.7 2436604 1959-02-04 2436575 1959-01-06 29 AAVSO
-42 7.9 2436796 1959-08-15 2436773 1959-07-23 23 SVO
-41 7.9 2436994 1960-02-29 2436971 1960-02-06 23 AAVSO
-40 8.3 2437193 1960-09-15 2437169 1960-08-22 24 SVO
-39 8.2 2437392 1961-04-02 2437367 1961-03-08 25 SVO
-38 8.2 2437587 1961-10-14 2437565 1961-09-22 22 SVO
-37 7.6 2437777 1962-04-22 2437762 1962-04-07 15 SVO
-36 8.3 2437970 1962-11-01 2437960 1962-10-22 10 SVO
-35 7.8 2438161 1963-05-11 2438158 1963-05-08 3 SVO
-34 8.1 2438363 1963-11-29 2438356 1963-11-22 7 SVO
-33 8.1 2438564 1964-06-17 2438554 1964-06-07 10 SVO
-32 7.6 2438758 1964-12-28 2438752 1964-12-22 6 SVO
-31 8.1 2438955 1965-07-13 2438950 1965-07-08 5 SVO
-30 8.1 2439158 1966-02-01 2439148 1966-01-22 10 SVO
-29 7.8 2439350 1966-08-12 2439345 1966-08-07 5 SVO
-28 8.3 2439555 1967-03-05 2439543 1967-02-21 12 SVO
-27 7.8 2439748 1967-09-14 2439741 1967-09-07 7 SVO
-26 8.0 2439945 1968-03-29 2439939 1968-03-23 6 SVO
-25 7.7 2440141 1968-10-11 2440137 1968-10-07 4 SVO
-24 7.9 2440337 1969-04-25 2440335 1969-04-23 2 SVO
-23 7.7 2440531 1969-11-05 2440533 1969-11-07 -2 SVO
-22 7.8 2440735 1970-05-28 2440731 1970-05-24 4 SVO
-21 8.1 2440940 1970-12-19 2440929 1970-12-08 11 SVO
-20 7.7 2441136 1971-07-03 2441126 1971-06-23 10 SVO
-19 8.0 2441322 1972-01-05 2441324 1972-01-07 -2 SVO
-18 7.7 2441521 1972-07-22 2441522 1972-07-23 -1 SVO
-17 8.1 2441719 1973-02-05 2441720 1973-02-06 -1 SVO
-16 8.1 2441924 1973-08-29 2441918 1973-08-23 6 SVO
-15 7.7 2442112 1974-03-05 2442116 1974-03-09 -4 SVO
-14 8.3 2442318 1974-09-27 2442314 1974-09-23 4 SVO
-13 7.7 2442513 1975-04-10 2442512 1975-04-09 1 SVO
-12 8.5 2442713 1975-10-27 2442709 1975-10-23 4 SVO
-11 8.0 2442913 1976-05-14 2442907 1976-05-08 6 SVO
-10 8.1 2443110 1976-11-27 2443105 1976-11-22 5 SVO
-9 7.5 2443300 1977-06-05 2443303 1977-06-08 -3 SVO
-8 8.0 2443493 1977-12-15 2443501 1977-12-23 -8 SVO
-7 7.9 2443693 1978-07-03 2443699 1978-07-09 -6 SVO
-6 7.8 2443890 1979-01-16 2443897 1979-01-23 -7 SVO
-5 8.1 2444092 1979-08-06 2444095 1979-08-09 -3 SVO
-4 8.0 2444294 1980-02-24 2444292 1980-02-22 2 SVO
-3 7.7 2444486 1980-09-03 2444490 1980-09-07 -4 SVO
-2 8.3 2444695 1981-03-31 2444688 1981-03-24 7 SVO
-1 7.9 2444896 1981-10-18 2444886 1981-10-08 10 SVO
0 7.7 2445087 1982-04-27 2445084 1982-04-24 3 SVO
1 8.0 2445292 1982-11-18 2445282 1982-11-08 10 SVO
2 8.3 2445491 1983-06-05 2445480 1983-05-25 11 SVO
3 8.1 2445694 1983-12-25 2445678 1983-12-09 16 SVO
4 7.7 2445888 1984-07-06 2445876 1984-06-24 12 SVO
5 8.0 2446086 1985-01-20 2446073 1985-01-07 13 SVO
6 8.1 2446286 1985-08-08 2446271 1985-07-24 15 SVO
7 8.2 2446486 1986-02-24 2446469 1986-02-07 17 SVO
8 7.7 2446686 1986-09-12 2446667 1986-08-24 19 SVO
9 8.1 2446880 1987-03-25 2446865 1987-03-10 15 SVO
10 7.8 2447073 1987-10-04 2447063 1987-09-24 10 SVO
11 8.0 2447274 1988-04-22 2447261 1988-04-09 13 SVO
12 7.8 2447476 1988-11-10 2447459 1988-10-24 17 SVO
13 7.8 2447674 1989-05-27 2447656 1989-05-09 18 SVO
14 7.7 2447870 1989-12-09 2447854 1989-11-23 16 SVO
15 7.7 2448067 1990-06-24 2448052 1990-06-09 15 SVO
16 8.1 2448266 1991-01-09 2448250 1990-12-24 16 SVO
17 7.8 2448457 1991-07-19 2448448 1991-07-10 9 SVO
18 8.1 2448653 1992-01-31 2448646 1992-01-24 7 SVO
19 7.7 2448854 1992-08-19 2448844 1992-08-09 10 SVO
20 8.0 2449047 1993-02-28 2449042 1993-02-23 5 SVO
21 7.9 2449237 1993-09-06 2449239 1993-09-08 -2 SVO
22 7.9 2449429 1994-03-17 2449437 1994-03-25 -8 SVO
23 8.2 2449633 1994-10-07 2449635 1994-10-09 -2 SVO
24 8.0 2449824 1995-04-16 2449833 1995-04-25 -9 SVO
25 8.0 2450023 1995-11-01 2450031 1995-11-09 -8 SVO
26 7.6 2450212 1996-05-08 2450229 1996-05-25 -17 SVO
27 8.2 2450409 1996-11-21 2450427 1996-12-09 -18 SVO
28 7.9 2450602 1997-06-02 2450625 1997-06-25 -23 SVO
29 8.3 2450805 1997-12-22 2450823 1998-01-09 -18 SVO
30 8.2 2451003 1998-07-08 2451020 1998-07-25 -17 SVO
31 7.7 2451196 1999-01-17 2451218 1999-02-08 -22 SVO
32 7.8 2451392 1999-08-01 2451416 1999-08-25 -24 SVO
33 7.5 2451589 2000-02-14 2451614 2000-03-10 -25 SVO
34 8.2 2451794 2000-09-06 2451812 2000-09-24 -18 SVO
35 8.1 2451992 2001-03-23 2452010 2001-04-10 -18 SVO
36 8.2 2452188 2001-10-05 2452208 2001-10-25 -20 SVO
37 7.9 2452386 2002-04-21 2452406 2002-05-11 -20 SVO
38 8.3 2452586 2002-11-07 2452603 2002-11-24 -17 SVO
39 7.7 2452776 2003-05-16 2452801 2003-06-10 -25 SVO
40 8.1 2452974 2003-11-30 2452999 2003-12-25 -25 SVO
41 8.6 2453175 2004-06-18 2453197 2004-07-10 -22 SVO
42 8.3 2453376 2005-01-05 2453395 2005-01-24 -19 SVO
43 8.3 2453575 2005-07-23 2453593 2005-08-10 -18 SVO
44 7.9 2453761 2006-01-25 2453791 2006-02-24 -30 SVO
45 8.3 2453958 2006-08-10 2453989 2006-09-10 -31 SVO
46 8.0 2454166 2007-03-06 2454186 2007-03-26 -20 SVO
47 8.0 2454365 2007-09-21 2454384 2007-10-10 -19 SVO
48 8.0 2454554 2008-03-28 2454582 2008-04-25 -28 SVO
49 8.0 2454743 2008-10-03 2454780 2008-11-09 -37 SVO
50 8.6 2454951 2009-04-29 2454978 2009-05-26 -27 SVO
51 8.2 2455146 2009-11-10 2455176 2009-12-10 -30 SVO
52 8.0 2455333 2010-05-16 2455374 2010-06-26 -41 SVO
53 8.1 2455531 2010-11-30 2455572 2011-01-10 -41 SVO
54 8.4 2455729 2011-06-16 2455770 2011-07-27 -41 SVO
55 8.1 2455914 2011-12-18 2455967 2012-02-09 -53 SVO
56 8.5 2456113 2012-07-04 2456165 2012-08-25 -52 SVO
57 8.3 2456312 2013-01-19 2456363 2013-03-11 -51 SVO
58 8.2 2456504 2013-07-30 2456561 2013-09-25 -57 SVO
59 8.7 2456708 2014-02-19 2456759 2014-04-11 -51 SVO
60 8.1 2456904 2014-09-03 2456957 2014-10-26 -53 SVO
61 8.6 2457094 2015-03-12 2457155 2015-05-12 -61 SVO
62 7.8 2457289 2015-09-23 2457353 2015-11-26 -64 SVO
63 8.2 2457482 2016-04-03 2457550 2016-06-10 -68 SVO
64 8.3 2457683 2016-10-21 2457748 2016-12-25 -65 SVO
65 8.1 2457870 2017-04-26 2457946 2017-07-11 -76 SVO
66 8.1 2458068 2017-11-10 2458144 2018-01-25 -76 SVO
67 8.8 2458270 2018-05-31 2458342 2018-08-11 -72 SVO
68 8.3 2458467 2018-12-14 2458540 2019-02-25 -73 SVO
69 8.4 2458662 2019-06-27 2458738 2019-09-11 -76 SVO
70 7.9 2458848 2019-12-30 2458936 2020-03-27 -88 SVO
71 8.2 2459042 2020-07-11 2459133 2020-10-10 -91 SVO
72 8.3 2459231 2021-01-16 2459331 2021-04-26 -100 SVO
73 8.3 2459426 2021-07-30 2459529 2021-11-10 -103 SVO
74 8.5 2459627 2022-02-16 2459727 2022-05-27 -100 SVO
75 8.3 2459829 2022-09-06 2459925 2022-12-11 -96 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.