Maxima for W Dra
Period: 278.6, Epoch: 2442176
Back to main page  Mean light curve  Period diagram

E Mag O (JD) O (dat) C (JD) C (Dat) O-C Source
-109   2413450 1895-09-13 2411809 1891-03-17 1641 SVO
-106   2414200 1897-10-02 2412644 1893-06-29 1556 SVO
-100   2415736 1901-12-17 2414316 1898-01-26 1420 SVO
-99   2416000 1902-09-07 2414595 1898-11-01 1405 SVO
-96   2416749 1904-09-25 2415430 1901-02-14 1319 AAVSO
-95   2417010 1905-06-13 2415709 1901-11-20 1301 AAVSO
-94 9.2 2417266 1906-02-24 2415988 1902-08-26 1278 AAVSO
-93 9.0 2417522 1906-11-07 2416266 1903-05-31 1256 AAVSO
-92   2417767 1907-07-10 2416545 1904-03-05 1222 AAVSO
-91 9.8 2418053 1908-04-21 2416823 1904-12-08 1230 AAVSO
-90 9.5 2418287 1908-12-11 2417102 1905-09-13 1185 AAVSO
-89 9.4 2418550 1909-08-31 2417381 1906-06-19 1169 AAVSO
-88   2418805 1910-05-13 2417659 1907-03-24 1146 AAVSO
-87   2419065 1911-01-28 2417938 1907-12-28 1127 AN, 1911, vol 188, p 311
-86 9.6 2419323 1911-10-13 2418216 1908-10-01 1107 SVO
-85 9.1 2419566 1912-06-12 2418495 1909-07-07 1071 AAVSO
-84 9.3 2419818 1913-02-19 2418774 1910-04-12 1044 AAVSO
-83 10.6 2420097 1913-11-25 2419052 1911-01-15 1045 AAVSO
-82 9.5 2420342 1914-07-28 2419331 1911-10-21 1011 AAVSO
-81   2420597 1915-04-09 2419609 1912-07-25 988 AAVSO
-80 9.4 2420857 1915-12-25 2419888 1913-04-30 969 AAVSO
-79 8.9 2421117 1916-09-10 2420167 1914-02-03 950 SVO
-78 10.0 2421383 1917-06-03 2420445 1914-11-08 938 AAVSO
-77 9.9 2421632 1918-02-07 2420724 1915-08-14 908 SVO
-76 9.1 2421899 1918-11-01 2421002 1916-05-18 897 AAVSO
-75 10.4 2422165 1919-07-25 2421281 1917-02-21 884 AAVSO
-74 9.8 2422424 1920-04-09 2421560 1917-11-27 864 SVO
-73 10.1 2422692 1921-01-02 2421838 1918-09-01 854 AAVSO
-72 9.0 2422949 1921-09-16 2422117 1919-06-07 832 AAVSO
-71 10.0 2423221 1922-06-15 2422395 1920-03-11 826 SVO
-70 9.4 2423487 1923-03-08 2422674 1920-12-15 813 AAVSO
-69 9.5 2423753 1923-11-29 2422953 1921-09-20 800 SVO
-68 9.8 2424013 1924-08-15 2423231 1922-06-25 782 SVO
-67 9.4 2424275 1925-05-04 2423510 1923-03-31 765 SVO
-66 9.0 2424529 1926-01-13 2423788 1924-01-03 741 AAVSO
-65 10.1 2424801 1926-10-12 2424067 1924-10-08 734 SVO
-64 9.5 2425055 1927-06-23 2424346 1925-07-14 709 SVO
-63 10.1 2425317 1928-03-11 2424624 1926-04-18 693 SVO
-62 10.0 2425570 1928-11-19 2424903 1927-01-22 667 SVO
-61 9.4 2425838 1929-08-14 2425181 1927-10-27 657 SVO
-60 10.0 2426120 1930-05-23 2425460 1928-08-01 660 SVO
-59 9.5 2426372 1931-01-30 2425739 1929-05-07 633 SVO
-58 9.8 2426634 1931-10-19 2426017 1930-02-09 617 SVO
-57 9.7 2426886 1932-06-27 2426296 1930-11-15 590 SVO
-56 10.0 2427155 1933-03-23 2426574 1931-08-20 581 SVO
-55 9.9 2427424 1933-12-17 2426853 1932-05-25 571 SVO
-54 9.7 2427681 1934-08-31 2427132 1933-02-28 549 SVO
-53 9.3 2427934 1935-05-11 2427410 1933-12-03 524 SVO
-52 9.9 2428212 1936-02-13 2427689 1934-09-08 523 SVO
-51 9.6 2428463 1936-10-21 2427967 1935-06-13 496 SVO
-50 9.5 2428729 1937-07-14 2428246 1936-03-18 483 SVO
-49 9.5 2428984 1938-03-26 2428525 1936-12-22 459 SVO
-48 10.3 2429255 1938-12-22 2428803 1937-09-26 452 SVO
-47 9.8 2429508 1939-09-01 2429082 1938-07-02 426 SVO
-46 10.7 2429784 1940-06-03 2429360 1939-04-06 424 SVO
-45   2430049 1941-02-23 2429639 1940-01-10 410 AAVSO
-44 10.4 2430303 1941-11-04 2429918 1940-10-15 385 SVO
-43 9.9 2430565 1942-07-24 2430196 1941-07-20 369 SVO
-42 9.3 2430820 1943-04-05 2430475 1942-04-25 345 AAVSO
-41 9.5 2431089 1943-12-30 2430753 1943-01-28 336 AAVSO
-40 9.8 2431358 1944-09-24 2431032 1943-11-03 326 SVO
-39 9.3 2431622 1945-06-15 2431311 1944-08-08 311 AAVSO
-38 9.5 2431909 1946-03-29 2431589 1945-05-13 320 AAVSO
-37 9.0 2432156 1946-12-01 2431868 1946-02-16 288 SVO
-36 9.6 2432429 1947-08-31 2432146 1946-11-21 283 SVO
-35 9.8 2432695 1948-05-23 2432425 1947-08-27 270 SVO
-34 9.7 2432957 1949-02-09 2432704 1948-06-01 253 AAVSO
-33 10.0 2433252 1949-12-01 2432982 1949-03-06 270 SVO
-32 9.4 2433501 1950-08-07 2433261 1949-12-10 240 SVO
-31 9.8 2433771 1951-05-04 2433539 1950-09-14 232 SVO
-30 9.6 2434018 1952-01-06 2433818 1951-06-20 200 SVO
-29 9.6 2434306 1952-10-20 2434097 1952-03-25 209 SVO
-28 10.1 2434573 1953-07-14 2434375 1952-12-28 198 SVO
-27 9.6 2434835 1954-04-02 2434654 1953-10-03 181 AAVSO
-26 9.8 2435114 1955-01-06 2434932 1954-07-08 182 SVO
-25 10.0 2435387 1955-10-06 2435211 1955-04-13 176 AAVSO
-24 9.6 2435646 1956-06-21 2435490 1956-01-17 156 SVO
-23 9.7 2435909 1957-03-11 2435768 1956-10-21 141 AAVSO
-22 9.8 2436175 1957-12-02 2436047 1957-07-27 128 AAVSO
-21 10.2 2436455 1958-09-08 2436325 1958-05-01 130 SVO
-20 9.4 2436710 1959-05-21 2436604 1959-02-04 106 SVO
-19 10.2 2436991 1960-02-26 2436883 1959-11-10 108 SVO
-18 10.2 2437269 1960-11-30 2437161 1960-08-14 108 SVO
-17 10.0 2437536 1961-08-24 2437440 1961-05-20 96 SVO
-16 9.7 2437808 1962-05-23 2437718 1962-02-22 90 SVO
-15   2438066 1963-02-05 2437997 1962-11-28 69 AAVSO
-14 9.8 2438339 1963-11-05 2438276 1963-09-03 63 SVO
-13 9.9 2438618 1964-08-10 2438554 1964-06-07 64 SVO
-12 10.4 2438890 1965-05-09 2438833 1965-03-13 57 SVO
-11 10.0 2439159 1966-02-02 2439111 1965-12-16 48 SVO
-10 10.7 2439432 1966-11-02 2439390 1966-09-21 42 SVO
-9 10.0 2439703 1967-07-31 2439669 1967-06-27 34 SVO
-8 9.3 2439960 1968-04-13 2439947 1968-03-31 13 SVO
-7 10.0 2440250 1969-01-28 2440226 1969-01-04 24 SVO
-6 9.5 2440502 1969-10-07 2440504 1969-10-09 -2 SVO
-5 10.3 2440794 1970-07-26 2440783 1970-07-15 11 SVO
-4 10.5 2441074 1971-05-02 2441062 1971-04-20 12 SVO
-3 9.9 2441344 1972-01-27 2441340 1972-01-23 4 SVO
-2 9.8 2441613 1972-10-22 2441619 1972-10-28 -6 SVO
-1 9.8 2441891 1973-07-27 2441897 1973-08-02 -6 SVO
0 10.1 2442182 1974-05-14 2442176 1974-05-08 6 SVO
1 9.3 2442451 1975-02-07 2442455 1975-02-11 -4 SVO
2 11.1 2442738 1975-11-21 2442733 1975-11-16 5 SVO
3 10.5 2443011 1976-08-20 2443012 1976-08-21 -1 SVO
4 9.9 2443284 1977-05-20 2443290 1977-05-26 -6 SVO
5 10.3 2443569 1978-03-01 2443569 1978-03-01 0 SVO
6 10.2 2443842 1978-11-29 2443848 1978-12-05 -6 SVO
7 10.1 2444126 1979-09-09 2444126 1979-09-09 0 SVO
8 9.6 2444404 1980-06-13 2444405 1980-06-14 -1 SVO
9 10.1 2444694 1981-03-30 2444683 1981-03-19 11 SVO
10 9.6 2444970 1981-12-31 2444962 1981-12-23 8 SVO
11 9.6 2445255 1982-10-12 2445241 1982-09-28 14 SVO
12 9.7 2445531 1983-07-15 2445519 1983-07-03 12 SVO
13 9.7 2445803 1984-04-12 2445798 1984-04-07 5 SVO
14 9.9 2446089 1985-01-23 2446076 1985-01-10 13 SVO
15 9.7 2446366 1985-10-27 2446355 1985-10-16 11 SVO
16 10.1 2446650 1986-08-07 2446634 1986-07-22 16 SVO
17 9.7 2446930 1987-05-14 2446912 1987-04-26 18 SVO
18 9.4 2447205 1988-02-13 2447191 1988-01-30 14 SVO
19 9.7 2447493 1988-11-27 2447469 1988-11-03 24 SVO
20 10.1 2447778 1989-09-08 2447748 1989-08-09 30 SVO
21 9.3 2448057 1990-06-14 2448027 1990-05-15 30 SVO
22 9.6 2448336 1991-03-20 2448305 1991-02-17 31 SVO
23 10.5 2448624 1992-01-02 2448584 1991-11-23 40 SVO
24 9.8 2448899 1992-10-03 2448862 1992-08-27 37 SVO
25 9.3 2449173 1993-07-04 2449141 1993-06-02 32 SVO
26 10.1 2449458 1994-04-15 2449420 1994-03-08 38 SVO
27 10.5 2449734 1995-01-16 2449698 1994-12-11 36 SVO
28 9.9 2450009 1995-10-18 2449977 1995-09-16 32 SVO
29 9.9 2450287 1996-07-22 2450255 1996-06-20 32 SVO
30 10.2 2450572 1997-05-03 2450534 1997-03-26 38 SVO
31 9.6 2450848 1998-02-03 2450813 1997-12-30 35 SVO
32 9.8 2451130 1998-11-12 2451091 1998-10-04 39 SVO
33 9.9 2451411 1999-08-20 2451370 1999-07-10 41 SVO
34 9.4 2451692 2000-05-27 2451648 2000-04-13 44 SVO
35 9.5 2451974 2001-03-05 2451927 2001-01-17 47 SVO
36 9.2 2452241 2001-11-27 2452206 2001-10-23 35 SVO
37 9.8 2452541 2002-09-23 2452484 2002-07-28 57 SVO
38 11.0 2452829 2003-07-08 2452763 2003-05-03 66 SVO
39 10.5 2453113 2004-04-17 2453041 2004-02-05 72 SVO
40 9.8 2453393 2005-01-22 2453320 2004-11-10 73 SVO
41 11.3 2453673 2005-10-29 2453599 2005-08-16 74 SVO
42 9.8 2453966 2006-08-18 2453877 2006-05-21 89 SVO
43 10.2 2454270 2007-06-18 2454156 2007-02-24 114 SVO
44 9.5 2454560 2008-04-03 2454434 2007-11-29 126 SVO
45 9.3 2454843 2009-01-11 2454713 2008-09-03 130 SVO
46 10.8 2455137 2009-11-01 2454992 2009-06-09 145 SVO
47 10.4 2455426 2010-08-17 2455270 2010-03-14 156 SVO
48 10.2 2455712 2011-05-30 2455549 2010-12-18 163 SVO
49 10.3 2456002 2012-03-15 2455827 2011-09-22 175 SVO
50 10.2 2456295 2013-01-02 2456106 2012-06-27 189 SVO
51 9.3 2456571 2013-10-05 2456385 2013-04-02 186 SVO
52 10.0 2456859 2014-07-20 2456663 2014-01-05 196 SVO
53 9.8 2457161 2015-05-18 2456942 2014-10-11 219 SVO
54 9.6 2457448 2016-02-29 2457220 2015-07-16 228 SVO
55 9.5 2457736 2016-12-13 2457499 2016-04-20 237 SVO
56 10.0 2458035 2017-10-08 2457778 2017-01-24 257 SVO
57 9.5 2458319 2018-07-19 2458056 2017-10-29 263 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.