Maxima for Y Mon
Period: 227, Epoch: 2454167
Back to main page  Mean light curve  Period diagram

E Mag O (JD) O (dat) C (JD) C (Dat) O-C Source
-176   2413950 1897-01-25 2414215 1897-10-17 -265 SVO
-173   2414650 1898-12-26 2414896 1899-08-29 -246 SVO
-170   2415316 1900-10-23 2415577 1901-07-11 -261 GuL, 1918, 1.1
-168   2415790 1902-02-09 2416031 1902-10-08 -241 AnHar, 1909, vol 55, p 95
-167   2416030 1902-10-07 2416258 1903-05-23 -228 SVO
-165   2416474 1903-12-25 2416712 1904-08-19 -238 SVO
-164   2416714 1904-08-21 2416939 1905-04-03 -225 AAVSO
-163 8.5 2416932 1905-03-27 2417166 1905-11-16 -234 AAVSO
-162   2417167 1905-11-17 2417393 1906-07-01 -226 AAVSO
-161   2417399 1906-07-07 2417620 1907-02-13 -221 AAVSO
-160   2417610 1907-02-03 2417847 1907-09-28 -237 AAVSO
-159   2417849 1907-09-30 2418074 1908-05-12 -225 AAVSO
-158   2418084 1908-05-22 2418301 1908-12-25 -217 AAVSO
-157 8.8 2418306 1908-12-30 2418528 1909-08-09 -222 AAVSO
-156   2418544 1909-08-25 2418755 1910-03-24 -211 AAVSO
-155 8.5 2418772 1910-04-10 2418982 1910-11-06 -210 SVO
-154   2418998 1910-11-22 2419209 1911-06-21 -211 AAVSO
-153   2419233 1911-07-15 2419436 1912-02-03 -203 AAVSO
-152 8.9 2419449 1912-02-16 2419663 1912-09-17 -214 AAVSO
-151   2419677 1912-10-01 2419890 1913-05-02 -213 AAVSO
-150   2419934 1913-06-15 2420117 1913-12-15 -183 AAVSO
-149 9.0 2420156 1914-01-23 2420344 1914-07-30 -188 SVO
-148   2420382 1914-09-06 2420571 1915-03-14 -189 AAVSO
-147 8.9 2420609 1915-04-21 2420798 1915-10-27 -189 AAVSO
-146 9.0 2420835 1915-12-03 2421025 1916-06-10 -190 AAVSO
-145   2421072 1916-07-27 2421252 1917-01-23 -180 AAVSO
-144 9.0 2421281 1917-02-21 2421479 1917-09-07 -198 SVO
-143   2421519 1917-10-17 2421706 1918-04-22 -187 AAVSO
-142 9.3 2421749 1918-06-04 2421933 1918-12-05 -184 AAVSO
-141 9.0 2421974 1919-01-15 2422160 1919-07-20 -186 SVO
-140   2422204 1919-09-02 2422387 1920-03-03 -183 AAVSO
-139 9.3 2422421 1920-04-06 2422614 1920-10-16 -193 SVO
-138 9.5 2422663 1920-12-04 2422841 1921-05-31 -178 SVO
-137   2422892 1921-07-21 2423068 1922-01-13 -176 AAVSO
-136 9.2 2423110 1922-02-24 2423295 1922-08-28 -185 SVO
-135 8.8 2423341 1922-10-13 2423522 1923-04-12 -181 AAVSO
-134   2423571 1923-05-31 2423749 1923-11-25 -178 AAVSO
-133 9.2 2423802 1924-01-17 2423976 1924-07-09 -174 SVO
-132   2424025 1924-08-27 2424203 1925-02-21 -178 AAVSO
-131 8.6 2424253 1925-04-12 2424430 1925-10-06 -177 AAVSO
-130 9.1 2424483 1925-11-28 2424657 1926-05-21 -174 AAVSO
-129   2424713 1926-07-16 2424884 1927-01-03 -171 AAVSO
-128 8.9 2424947 1927-03-07 2425111 1927-08-18 -164 SVO
-127 9.0 2425182 1927-10-28 2425338 1928-04-01 -156 AAVSO
-126   2425422 1928-06-24 2425565 1928-11-14 -143 AAVSO
-125 9.0 2425662 1929-02-19 2425792 1929-06-29 -130 SVO
-124 9.2 2425895 1929-10-10 2426019 1930-02-11 -124 SVO
-123 8.7 2426109 1930-05-12 2426246 1930-09-26 -137 AAVSO
-122 8.7 2426343 1931-01-01 2426473 1931-05-11 -130 SVO
-121 9.3 2426573 1931-08-19 2426700 1931-12-24 -127 AAVSO
-120 9.5 2426811 1932-04-13 2426927 1932-08-07 -116 AAVSO
-119 8.9 2427052 1932-12-10 2427154 1933-03-22 -102 SVO
-118   2427268 1933-07-14 2427381 1933-11-04 -113 AAVSO
-117 9.3 2427514 1934-03-17 2427608 1934-06-19 -94 SVO
-116 9.4 2427748 1934-11-06 2427835 1935-02-01 -87 SVO
-115   2427975 1935-06-21 2428062 1935-09-16 -87 AAVSO
-114 9.7 2428214 1936-02-15 2428289 1936-04-30 -75 SVO
-113 9.7 2428453 1936-10-11 2428516 1936-12-13 -63 AAVSO
-112 9.0 2428683 1937-05-29 2428743 1937-07-28 -60 AAVSO
-111 9.3 2428919 1938-01-20 2428970 1938-03-12 -51 SVO
-110   2429152 1938-09-10 2429197 1938-10-25 -45 AAVSO
-109 8.6 2429383 1939-04-29 2429424 1939-06-09 -41 AAVSO
-108 8.7 2429615 1939-12-17 2429651 1940-01-22 -36 SVO
-107   2429850 1940-08-08 2429878 1940-09-05 -28 AAVSO
-106 9.5 2430095 1941-04-10 2430105 1941-04-20 -10 AAVSO
-105 9.2 2430331 1941-12-02 2430332 1941-12-03 -1 SVO
-104   2430558 1942-07-17 2430559 1942-07-18 -1 AAVSO
-103 9.1 2430795 1943-03-11 2430786 1943-03-02 9 SVO
-102 8.9 2431022 1943-10-24 2431013 1943-10-15 9 AAVSO
-101   2431262 1944-06-20 2431240 1944-05-29 22 AAVSO
-100 9.1 2431489 1945-02-02 2431467 1945-01-11 22 SVO
-99 9.4 2431712 1945-09-13 2431694 1945-08-26 18 AAVSO
-98 9.2 2431958 1946-05-17 2431921 1946-04-10 37 AAVSO
-97 9.0 2432192 1947-01-06 2432148 1946-11-23 44 AAVSO
-96   2432422 1947-08-24 2432375 1947-07-08 47 AAVSO
-95 8.9 2432651 1948-04-09 2432602 1948-02-20 49 AAVSO
-94 9.0 2432876 1948-11-20 2432829 1948-10-04 47 SVO
-93   2433106 1949-07-08 2433056 1949-05-19 50 AAVSO
-92 8.8 2433334 1950-02-21 2433283 1950-01-01 51 SVO
-91 9.5 2433572 1950-10-17 2433510 1950-08-16 62 AAVSO
-90 8.7 2433798 1951-05-31 2433737 1951-03-31 61 AAVSO
-89 9.3 2434026 1952-01-14 2433964 1951-11-13 62 SVO
-88   2434260 1952-09-04 2434191 1952-06-27 69 AAVSO
-87 9.2 2434490 1953-04-22 2434418 1953-02-09 72 AAVSO
-86 9.0 2434710 1953-11-28 2434645 1953-09-24 65 SVO
-85   2434943 1954-07-19 2434872 1954-05-09 71 AAVSO
-84 9.1 2435163 1955-02-24 2435099 1954-12-22 64 SVO
-83   2435390 1955-10-09 2435326 1955-08-06 64 AAVSO
-82   2435621 1956-05-27 2435553 1956-03-20 68 AAVSO
-81 9.0 2435855 1957-01-16 2435780 1956-11-02 75 SVO
-80 9.2 2436083 1957-09-01 2436007 1957-06-17 76 AAVSO
-79 9.1 2436308 1958-04-14 2436234 1958-01-30 74 AAVSO
-78 9.2 2436543 1958-12-05 2436461 1958-09-14 82 SVO
-77   2436770 1959-07-20 2436688 1959-04-29 82 AAVSO
-76 9.3 2437000 1960-03-06 2436915 1959-12-12 85 SVO
-75 9.4 2437222 1960-10-14 2437142 1960-07-26 80 AAVSO
-74   2437451 1961-05-31 2437369 1961-03-10 82 AAVSO
-73 9.0 2437679 1962-01-14 2437596 1961-10-23 83 SVO
-72   2437911 1962-09-03 2437823 1962-06-07 88 AAVSO
-71 9.1 2438152 1963-05-02 2438050 1963-01-20 102 AAVSO
-70 9.0 2438369 1963-12-05 2438277 1963-09-04 92 SVO
-69   2438607 1964-07-30 2438504 1964-04-18 103 AAVSO
-68 9.6 2438831 1965-03-11 2438731 1964-12-01 100 SVO
-67 9.3 2439055 1965-10-21 2438958 1965-07-16 97 AAVSO
-66   2439281 1966-06-04 2439185 1966-02-28 96 AAVSO
-65 9.1 2439500 1967-01-09 2439412 1966-10-13 88 SVO
-64 9.2 2439720 1967-08-17 2439639 1967-05-28 81 AAVSO
-63 9.0 2439952 1968-04-05 2439866 1968-01-10 86 AAVSO
-62 9.0 2440190 1968-11-29 2440093 1968-08-24 97 AAVSO
-61   2440415 1969-07-12 2440320 1969-04-08 95 AAVSO
-60 9.1 2440641 1970-02-23 2440547 1969-11-21 94 SVO
-59 9.4 2440868 1970-10-08 2440774 1970-07-06 94 AAVSO
-58 9.1 2441094 1971-05-22 2441001 1971-02-18 93 AAVSO
-57 9.1 2441327 1972-01-10 2441228 1971-10-03 99 SVO
-56   2441551 1972-08-21 2441455 1972-05-17 96 AAVSO
-55 8.8 2441788 1973-04-15 2441682 1972-12-30 106 AAVSO
-54 9.0 2442013 1973-11-26 2441909 1973-08-14 104 SVO
-53   2442246 1974-07-17 2442136 1974-03-29 110 AAVSO
-52 9.3 2442473 1975-03-01 2442363 1974-11-11 110 SVO
-51 9.2 2442701 1975-10-15 2442590 1975-06-26 111 AAVSO
-50 10.9 2442932 1976-06-02 2442817 1976-02-08 115 AAVSO
-49 9.2 2443172 1977-01-28 2443044 1976-09-22 128 SVO
-48 9.2 2443394 1977-09-07 2443271 1977-05-07 123 AAVSO
-47 9.1 2443620 1978-04-21 2443498 1977-12-20 122 AAVSO
-46 9.1 2443842 1978-11-29 2443725 1978-08-04 117 SVO
-45   2444074 1979-07-19 2443952 1979-03-19 122 AAVSO
-44 9.1 2444305 1980-03-06 2444179 1979-11-01 126 SVO
-43 9.8 2444548 1980-11-04 2444406 1980-06-15 142 SVO
-42   2444765 1981-06-09 2444633 1981-01-28 132 AAVSO
-41 9.3 2445006 1982-02-05 2444860 1981-09-12 146 SVO
-40 9.7 2445233 1982-09-20 2445087 1982-04-27 146 AAVSO
-39 9.1 2445454 1983-04-29 2445314 1982-12-10 140 AAVSO
-38 9.4 2445690 1983-12-21 2445541 1983-07-25 149 SVO
-37   2445920 1984-08-07 2445768 1984-03-08 152 AAVSO
-36 9.8 2446160 1985-04-04 2445995 1984-10-21 165 SVO
-35 9.5 2446391 1985-11-21 2446222 1985-06-05 169 SVO
-34   2446617 1986-07-05 2446449 1986-01-18 168 AAVSO
-33 9.2 2446846 1987-02-19 2446676 1986-09-02 170 SVO
-32   2447072 1987-10-03 2446903 1987-04-17 169 AAVSO
-31   2447303 1988-05-21 2447130 1987-11-30 173 AAVSO
-30 9.3 2447540 1989-01-13 2447357 1988-07-14 183 SVO
-29   2447766 1989-08-27 2447584 1989-02-26 182 AAVSO
-28   2447999 1990-04-17 2447811 1989-10-11 188 AAVSO
-27 9.1 2448230 1990-12-04 2448038 1990-05-26 192 SVO
-26   2448461 1991-07-23 2448265 1991-01-08 196 AAVSO
-25 8.9 2448696 1992-03-14 2448492 1991-08-23 204 SVO
-24   2448931 1992-11-04 2448719 1992-04-06 212 AAVSO
-23   2449158 1993-06-19 2448946 1992-11-19 212 AAVSO
-22 8.9 2449388 1994-02-04 2449173 1993-07-04 215 SVO
-21   2449612 1994-09-16 2449400 1994-02-16 212 AAVSO
-20   2449846 1995-05-08 2449627 1994-10-01 219 AAVSO
-19 9.1 2450067 1995-12-15 2449854 1995-05-16 213 SVO
-18   2450296 1996-07-31 2450081 1995-12-29 215 AAVSO
-17 9.2 2450529 1997-03-21 2450308 1996-08-12 221 SVO
-16 9.2 2450760 1997-11-07 2450535 1997-03-27 225 SVO
-15   2450983 1998-06-18 2450762 1997-11-09 221 AAVSO
-14 9.1 2451212 1999-02-02 2450989 1998-06-24 223 SVO
-13   2451442 1999-09-20 2451216 1999-02-06 226 AAVSO
-12   2451672 2000-05-07 2451443 1999-09-21 229 AAVSO
-11 9.3 2451898 2000-12-19 2451670 2000-05-05 228 SVO
-10   2452131 2001-08-09 2451897 2000-12-18 234 AAVSO
-9 9.3 2452353 2002-03-19 2452124 2001-08-02 229 SVO
-8 8.9 2452576 2002-10-28 2452351 2002-03-17 225 SVO
-7   2452803 2003-06-12 2452578 2002-10-30 225 AAVSO
-6 9.9 2453035 2004-01-30 2452805 2003-06-14 230 SVO
-5   2453253 2004-09-04 2453032 2004-01-27 221 AAVSO
-4   2453491 2005-04-30 2453259 2004-09-10 232 AAVSO
-3 9.3 2453712 2005-12-07 2453486 2005-04-25 226 SVO
-2   2453937 2006-07-20 2453713 2005-12-08 224 AAVSO
-1 9.1 2454165 2007-03-05 2453940 2006-07-23 225 SVO
0   2454396 2007-10-22 2454167 2007-03-07 229 AAVSO
1   2454628 2008-06-10 2454394 2007-10-20 234 AAVSO
2 8.8 2454851 2009-01-19 2454621 2008-06-03 230 SVO
3   2455075 2009-08-31 2454848 2009-01-16 227 AAVSO
4 9.1 2455301 2010-04-14 2455075 2009-08-31 226 AAVSO
5 8.8 2455531 2010-11-30 2455302 2010-04-15 229 SVO
6   2455756 2011-07-13 2455529 2010-11-28 227 AAVSO
7 9.1 2455992 2012-03-05 2455756 2011-07-13 236 SVO
8 8.7 2456225 2012-10-24 2455983 2012-02-25 242 SVO
9   2456452 2013-06-08 2456210 2012-10-09 242 AAVSO
10 8.8 2456684 2014-01-26 2456437 2013-05-24 247 SVO
11 9.3 2456910 2014-09-09 2456664 2014-01-06 246 AAVSO
12 9.3 2457144 2015-05-01 2456891 2014-08-21 253 AAVSO
13 8.6 2457366 2015-12-09 2457118 2015-04-05 248 SVO
14   2457591 2016-07-21 2457345 2015-11-18 246 AAVSO
15 8.9 2457817 2017-03-04 2457572 2016-07-02 245 SVO
16 9.1 2458054 2017-10-27 2457799 2017-02-14 255 SVO
17   2458275 2018-06-05 2458026 2017-09-29 249 SVO
18 8.8 2458508 2019-01-24 2458253 2018-05-14 255 SVO
19   2458730 2019-09-03 2458480 2018-12-27 250 SVO
20 8.9 2458964 2020-04-24 2458707 2019-08-11 257 SVO
21 9.0 2459198 2020-12-14 2458934 2020-03-25 264 SVO
22   2459425 2021-07-29 2459161 2020-11-07 264 SVO
23 8.6 2459650 2022-03-11 2459388 2021-06-22 262 SVO
24 9.2 2459886 2022-11-02 2459615 2022-02-04 271 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.