Maxima for U Ser
Period: 239, Epoch: 2454880
Back to main page  Mean light curve  Period diagram

E Mag O (JD) O (dat) C (JD) C (Dat) O-C Source
-178   2412573 1893-04-19 2412338 1892-08-27 235 AnHar, 1909, vol 55, p 95
-175   2413295 1895-04-11 2413055 1894-08-14 240 AnHar, 1909, vol 55, p 95
-173   2413795 1896-08-23 2413533 1895-12-05 262 AnHar, 1909, vol 55, p 95
-172   2414023 1897-04-08 2413772 1896-07-31 251 AnHar, 1909, vol 55, p 95
-170   2414509 1898-08-07 2414250 1897-11-21 259 AnHar, 1909, vol 55, p 95
-169   2414741 1899-03-27 2414489 1898-07-18 252 AnHar, 1909, vol 55, p 95
-167   2415222 1900-07-21 2414967 1899-11-08 255 SVO
-166   2415452 1901-03-08 2415206 1900-07-05 246 AnHar, 1909, vol 55, p 95
-164   2415933 1902-07-02 2415684 1901-10-26 249 AnHar, 1909, vol 55, p 95
-163   2416156 1903-02-10 2415923 1902-06-22 233 AAVSO
-162   2416394 1903-10-06 2416162 1903-02-16 232 AAVSO
-161 7.7 2416639 1904-06-07 2416401 1903-10-13 238 SVO
-160   2416886 1905-02-09 2416640 1904-06-08 246 AAVSO
-159   2417110 1905-09-21 2416879 1905-02-02 231 AAVSO
-158 8.5 2417344 1906-05-13 2417118 1905-09-29 226 AAVSO
-156 8.5 2417822 1907-09-03 2417596 1907-01-20 226 AAVSO
-155   2418064 1908-05-02 2417835 1907-09-16 229 SVO
-154   2418307 1908-12-31 2418074 1908-05-12 233 AAVSO
-153 8.7 2418554 1909-09-04 2418313 1909-01-06 241 AAVSO
-152 7.8 2418776 1910-04-14 2418552 1909-09-02 224 AAVSO
-151   2419016 1910-12-10 2418791 1910-04-29 225 AAVSO
-150 8.6 2419259 1911-08-10 2419030 1910-12-24 229 AAVSO
-149   2419492 1912-03-30 2419269 1911-08-20 223 AAVSO
-147 8.4 2419971 1913-07-22 2419747 1912-12-10 224 SVO
-146 7.8 2420210 1914-03-18 2419986 1913-08-06 224 AAVSO
-145   2420448 1914-11-11 2420225 1914-04-02 223 AAVSO
-144 8.3 2420678 1915-06-29 2420464 1914-11-27 214 SVO
-143   2420939 1916-03-16 2420703 1915-07-24 236 AAVSO
-142 8.3 2421158 1916-10-21 2420942 1916-03-19 216 AAVSO
-141 8.4 2421392 1917-06-12 2421181 1916-11-13 211 SVO
-140 8.9 2421626 1918-02-01 2421420 1917-07-10 206 AAVSO
-139 8.5 2421868 1918-10-01 2421659 1918-03-06 209 AAVSO
-138 9.0 2422115 1919-06-05 2421898 1918-10-31 217 SVO
-137 8.1 2422348 1920-01-24 2422137 1919-06-27 211 AAVSO
-136 8.4 2422577 1920-09-09 2422376 1920-02-21 201 SVO
-135 8.5 2422815 1921-05-05 2422615 1920-10-17 200 SVO
-134 8.0 2423060 1922-01-05 2422854 1921-06-13 206 AAVSO
-133 9.0 2423289 1922-08-22 2423093 1922-02-07 196 SVO
-132 8.8 2423530 1923-04-20 2423332 1922-10-04 198 SVO
-131 8.2 2423759 1923-12-05 2423571 1923-05-31 188 SVO
-130 8.9 2424000 1924-08-02 2423810 1924-01-25 190 SVO
-129 8.7 2424242 1925-04-01 2424049 1924-09-20 193 SVO
-128 8.4 2424479 1925-11-24 2424288 1925-05-17 191 AAVSO
-127 8.3 2424708 1926-07-11 2424527 1926-01-11 181 SVO
-126 7.8 2424947 1927-03-07 2424766 1926-09-07 181 AAVSO
-125 8.4 2425187 1927-11-02 2425005 1927-05-04 182 AAVSO
-124 8.3 2425427 1928-06-29 2425244 1927-12-29 183 SVO
-123 8.6 2425656 1929-02-13 2425483 1928-08-24 173 AAVSO
-122 8.4 2425899 1929-10-14 2425722 1929-04-20 177 AAVSO
-121 8.8 2426138 1930-06-10 2425961 1929-12-15 177 SVO
-120 8.6 2426386 1931-02-13 2426200 1930-08-11 186 AAVSO
-119 8.8 2426614 1931-09-29 2426439 1931-04-07 175 SVO
-118 8.1 2426836 1932-05-08 2426678 1931-12-02 158 SVO
-117 8.1 2427084 1933-01-11 2426917 1932-07-28 167 AAVSO
-116 8.7 2427321 1933-09-05 2427156 1933-03-24 165 SVO
-115 8.4 2427563 1934-05-05 2427395 1933-11-18 168 SVO
-114 8.6 2427807 1935-01-04 2427634 1934-07-15 173 AAVSO
-113 9.0 2428046 1935-08-31 2427873 1935-03-11 173 SVO
-112 8.4 2428286 1936-04-27 2428112 1935-11-05 174 SVO
-111 8.6 2428528 1936-12-25 2428351 1936-07-01 177 AAVSO
-110 9.1 2428760 1937-08-14 2428590 1937-02-25 170 SVO
-109 8.3 2428996 1938-04-07 2428829 1937-10-22 167 SVO
-108 8.7 2429243 1938-12-10 2429068 1938-06-18 175 SVO
-107 8.8 2429478 1939-08-02 2429307 1939-02-12 171 SVO
-106 8.2 2429710 1940-03-21 2429546 1939-10-09 164 SVO
-105 9.3 2429967 1940-12-03 2429785 1940-06-04 182 AAVSO
-104 9.2 2430200 1941-07-24 2430024 1941-01-29 176 SVO
-103 8.4 2430438 1942-03-19 2430263 1941-09-25 175 SVO
-102   2430684 1942-11-20 2430502 1942-05-22 182 AAVSO
-101 8.7 2430909 1943-07-03 2430741 1943-01-16 168 SVO
-100   2431154 1944-03-04 2430980 1943-09-12 174 AAVSO
-99 9.0 2431391 1944-10-27 2431219 1944-05-08 172 AAVSO
-98 9.0 2431633 1945-06-26 2431458 1945-01-02 175 SVO
-97 8.5 2431879 1946-02-27 2431697 1945-08-29 182 AAVSO
-96 8.4 2432106 1946-10-12 2431936 1946-04-25 170 SVO
-95 9.1 2432346 1947-06-09 2432175 1946-12-20 171 SVO
-94 8.4 2432572 1948-01-21 2432414 1947-08-16 158 AAVSO
-93 8.8 2432817 1948-09-22 2432653 1948-04-11 164 SVO
-92 8.8 2433060 1949-05-23 2432892 1948-12-06 168 SVO
-91 8.5 2433306 1950-01-24 2433131 1949-08-02 175 AAVSO
-90 8.4 2433540 1950-09-15 2433370 1950-03-29 170 SVO
-89 9.0 2433778 1951-05-11 2433609 1950-11-23 169 SVO
-88 8.6 2434019 1952-01-07 2433848 1951-07-20 171 AAVSO
-87 8.7 2434254 1952-08-29 2434087 1952-03-15 167 SVO
-86 9.0 2434500 1953-05-02 2434326 1952-11-09 174 SVO
-85   2434729 1953-12-17 2434565 1953-07-06 164 AAVSO
-84 8.4 2434966 1954-08-11 2434804 1954-03-02 162 SVO
-83 8.9 2435208 1955-04-10 2435043 1954-10-27 165 SVO
-82   2435441 1955-11-29 2435282 1955-06-23 159 AAVSO
-81 9.5 2435681 1956-07-26 2435521 1956-02-17 160 SVO
-80 8.4 2435918 1957-03-20 2435760 1956-10-13 158 AAVSO
-79 9.3 2436146 1957-11-03 2435999 1957-06-09 147 AAVSO
-78 9.0 2436397 1958-07-12 2436238 1958-02-03 159 SVO
-77 7.6 2436627 1959-02-27 2436477 1958-09-30 150 AAVSO
-76 9.0 2436870 1959-10-28 2436716 1959-05-27 154 AAVSO
-75 9.4 2437102 1960-06-16 2436955 1960-01-21 147 SVO
-74 7.8 2437339 1961-02-08 2437194 1960-09-16 145 AAVSO
-73 8.9 2437572 1961-09-29 2437433 1961-05-13 139 AAVSO
-72 9.0 2437810 1962-05-25 2437672 1962-01-07 138 SVO
-71 8.4 2438051 1963-01-21 2437911 1962-09-03 140 AAVSO
-70 8.8 2438283 1963-09-10 2438150 1963-04-30 133 AAVSO
-69 9.1 2438525 1964-05-09 2438389 1963-12-25 136 SVO
-68 8.1 2438761 1964-12-31 2438628 1964-08-20 133 AAVSO
-67 9.2 2439001 1965-08-28 2438867 1965-04-16 134 SVO
-66 9.2 2439249 1966-05-03 2439106 1965-12-11 143 SVO
-65 8.6 2439474 1966-12-14 2439345 1966-08-07 129 AAVSO
-64 8.5 2439721 1967-08-18 2439584 1967-04-03 137 SVO
-63 9.1 2439959 1968-04-12 2439823 1967-11-28 136 SVO
-62 8.5 2440190 1968-11-29 2440062 1968-07-24 128 AAVSO
-61 8.5 2440430 1969-07-27 2440301 1969-03-20 129 SVO
-60 9.0 2440670 1970-03-24 2440540 1969-11-14 130 SVO
-59 8.0 2440902 1970-11-11 2440779 1970-07-11 123 AAVSO
-58 8.3 2441137 1971-07-04 2441018 1971-03-07 119 SVO
-57 8.4 2441382 1972-03-05 2441257 1971-11-01 125 SVO
-56 8.3 2441609 1972-10-18 2441496 1972-06-27 113 SVO
-55 8.5 2441843 1973-06-09 2441735 1973-02-21 108 SVO
-54 8.6 2442085 1974-02-06 2441974 1973-10-18 111 SVO
-53 8.4 2442321 1974-09-30 2442213 1974-06-14 108 SVO
-52 8.9 2442561 1975-05-28 2442452 1975-02-08 109 SVO
-51 8.7 2442800 1976-01-22 2442691 1975-10-05 109 SVO
-50 8.2 2443032 1976-09-10 2442930 1976-05-31 102 SVO
-49 9.0 2443273 1977-05-09 2443169 1977-01-25 104 SVO
-48 8.7 2443511 1978-01-02 2443408 1977-09-21 103 SVO
-47 8.8 2443753 1978-09-01 2443647 1978-05-18 106 SVO
-46 8.4 2443995 1979-05-01 2443886 1979-01-12 109 SVO
-45 8.5 2444217 1979-12-09 2444125 1979-09-08 92 SVO
-44 9.1 2444467 1980-08-15 2444364 1980-05-04 103 SVO
-43 9.0 2444706 1981-04-11 2444603 1980-12-29 103 SVO
-42 8.1 2444936 1981-11-27 2444842 1981-08-25 94 SVO
-41 9.3 2445177 1982-07-26 2445081 1982-04-21 96 SVO
-40 8.5 2445409 1983-03-15 2445320 1982-12-16 89 SVO
-39 9.4 2445658 1983-11-19 2445559 1983-08-12 99 SVO
-38 8.4 2445892 1984-07-10 2445798 1984-04-07 94 SVO
-37 8.4 2446124 1985-02-27 2446037 1984-12-02 87 SVO
-36 9.0 2446363 1985-10-24 2446276 1985-07-29 87 SVO
-35 8.0 2446592 1986-06-10 2446515 1986-03-25 77 SVO
-34 8.8 2446830 1987-02-03 2446754 1986-11-19 76 SVO
-33 8.9 2447070 1987-10-01 2446993 1987-07-16 77 SVO
-32 8.4 2447308 1988-05-26 2447232 1988-03-11 76 SVO
-31 8.5 2447544 1989-01-17 2447471 1988-11-05 73 SVO
-30 8.3 2447783 1989-09-13 2447710 1989-07-02 73 SVO
-29 9.0 2448028 1990-05-16 2447949 1990-02-26 79 SVO
-28   2448271 1991-01-14 2448188 1990-10-23 83 AAVSO
-27 8.5 2448500 1991-08-31 2448427 1991-06-19 73 SVO
-26 8.8 2448741 1992-04-28 2448666 1992-02-13 75 SVO
-25 8.5 2448971 1992-12-14 2448905 1992-10-09 66 SVO
-24 8.3 2449201 1993-08-01 2449144 1993-06-05 57 SVO
-23 9.6 2449441 1994-03-29 2449383 1994-01-30 58 SVO
-22 9.1 2449675 1994-11-18 2449622 1994-09-26 53 SVO
-21 8.5 2449905 1995-07-06 2449861 1995-05-23 44 SVO
-20 8.4 2450137 1996-02-23 2450100 1996-01-17 37 SVO
-19 8.4 2450383 1996-10-26 2450339 1996-09-12 44 SVO
-18 8.2 2450611 1997-06-11 2450578 1997-05-09 33 SVO
-17 8.9 2450849 1998-02-04 2450817 1998-01-03 32 SVO
-16 8.3 2451085 1998-09-28 2451056 1998-08-30 29 SVO
-15 9.2 2451322 1999-05-23 2451295 1999-04-26 27 SVO
-14 8.6 2451555 2000-01-11 2451534 1999-12-21 21 SVO
-13 8.8 2451795 2000-09-07 2451773 2000-08-16 22 SVO
-12 8.3 2452029 2001-04-29 2452012 2001-04-12 17 SVO
-11 9.0 2452264 2001-12-20 2452251 2001-12-07 13 SVO
-10 8.4 2452500 2002-08-13 2452490 2002-08-03 10 SVO
-9 8.9 2452740 2003-04-10 2452729 2003-03-30 11 SVO
-8 8.6 2452977 2003-12-03 2452968 2003-11-24 9 SVO
-7 8.3 2453211 2004-07-24 2453207 2004-07-20 4 SVO
-6 8.7 2453457 2005-03-27 2453446 2005-03-16 11 SVO
-5 8.8 2453693 2005-11-18 2453685 2005-11-10 8 SVO
-4 8.2 2453928 2006-07-11 2453924 2006-07-07 4 SVO
-3 8.5 2454160 2007-02-28 2454163 2007-03-03 -3 SVO
-2 8.3 2454398 2007-10-24 2454402 2007-10-28 -4 SVO
-1 9.2 2454644 2008-06-26 2454641 2008-06-23 3 SVO
0 8.3 2454872 2009-02-09 2454880 2009-02-17 -8 SVO
1 9.0 2455119 2009-10-14 2455119 2009-10-14 0 SVO
2 8.8 2455357 2010-06-09 2455358 2010-06-10 -1 SVO
3 8.8 2455602 2011-02-09 2455597 2011-02-04 5 SVO
4 9.1 2455845 2011-10-10 2455836 2011-10-01 9 SVO
5 8.2 2456074 2012-05-26 2456075 2012-05-27 -1 SVO
6 8.7 2456307 2013-01-14 2456314 2013-01-21 -7 AAVSO
7 8.6 2456552 2013-09-16 2456553 2013-09-17 -1 SVO
8 9.1 2456791 2014-05-13 2456792 2014-05-14 -1 SVO
9 8.7 2457021 2014-12-29 2457031 2015-01-08 -10 AAVSO
10 8.1 2457258 2015-08-23 2457270 2015-09-04 -12 SVO
11 9.0 2457507 2016-04-28 2457509 2016-04-30 -2 SVO
12 9.1 2457754 2016-12-31 2457748 2016-12-25 6 SVO
13 8.3 2457980 2017-08-14 2457987 2017-08-21 -7 SVO
14 8.2 2458214 2018-04-05 2458226 2018-04-17 -12 SVO
15 9.0 2458458 2018-12-05 2458465 2018-12-12 -7 SVO
16 8.7 2458700 2019-08-04 2458704 2019-08-08 -4 SVO
17 8.3 2458931 2020-03-22 2458943 2020-04-03 -12 SVO
18 8.6 2459170 2020-11-16 2459182 2020-11-28 -12 SVO
19 8.6 2459416 2021-07-20 2459421 2021-07-25 -5 SVO
20 8.3 2459656 2022-03-17 2459660 2022-03-21 -4 SVO
21   2459890 2022-11-06 2459899 2022-11-15 -9 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.