Maxima for R Leo
Period: 312.2, Epoch: 2444164
Back to main page  Mean light curve  Period diagram

E Mag O (JD) O (dat) C (JD) C (Dat) O-C Source
-260   2362875 1757-03-25 2362992 1757-07-20 -117 AnHar, 1909, vol 55, p 95
-231   2371991 1782-03-10 2372046 1782-05-04 -55 AnHar, 1909, vol 55, p 95
-217   2376396 1794-04-01 2376417 1794-04-22 -21 AnHar, 1909, vol 55, p 95
-210   2378577 1800-03-22 2378602 1800-04-16 -25 AnHar, 1909, vol 55, p 95
-209   2378867 1801-01-06 2378914 1801-02-22 -47 AnHar, 1909, vol 55, p 95
-189   2385115 1818-02-14 2385158 1818-03-29 -43 AnHar, 1909, vol 55, p 95
-176   2389167 1829-03-20 2389217 1829-05-09 -50 AnHar, 1909, vol 55, p 95
-175   2389474 1830-01-21 2389529 1830-03-17 -55 AnHar, 1909, vol 55, p 95
-163   2393249 1840-05-23 2393275 1840-06-18 -26 AnHar, 1909, vol 55, p 95
-155 5.3 2395738 1847-03-17 2395773 1847-04-21 -35 SVO
-154 5.7 2396045 1848-01-18 2396085 1848-02-27 -40 SVO
-153 5.4 2396367 1848-12-05 2396397 1849-01-04 -30 SVO
-152   2396681 1849-10-15 2396710 1849-11-13 -29 AnHar, 1909, vol 55, p 95
-150   2397301 1851-06-27 2397334 1851-07-30 -33 MNRAS, 1915, vol 76, p 158
-149   2397612 1852-05-03 2397646 1852-06-06 -34 AnHar, 1909, vol 55, p 95
-148 5.6 2397923 1853-03-10 2397958 1853-04-14 -35 SVO
-147 5.3 2398236 1854-01-17 2398271 1854-02-21 -35 SVO
-146   2398559 1854-12-06 2398583 1854-12-30 -24 AnHar, 1909, vol 55, p 95
-145   2398870 1855-10-13 2398895 1855-11-07 -25 AnHar, 1909, vol 55, p 95
-144   2399171 1856-08-09 2399207 1856-09-14 -36 MNRAS, 1915, vol 76, p 158
-143 5.4 2399490 1857-06-24 2399519 1857-07-23 -29 SVO
-142   2399802 1858-05-02 2399832 1858-06-01 -30 AnHar, 1909, vol 55, p 95
-141 5.5 2400115 1859-03-11 2400144 1859-04-09 -29 SVO
-140 6.1 2400426 1860-01-16 2400456 1860-02-15 -30 SVO
-139   2400732 1860-11-17 2400768 1860-12-23 -36 AnHar, 1909, vol 55, p 95
-138 5.6 2401040 1861-09-21 2401080 1861-10-31 -40 SVO
-137   2401355 1862-08-02 2401393 1862-09-09 -38 MNRAS, 1915, vol 76, p 158
-136 5.4 2401671 1863-06-14 2401705 1863-07-18 -34 SVO
-135 5.3 2401978 1864-04-16 2402017 1864-05-25 -39 SVO
-134 5.7 2402301 1865-03-05 2402329 1865-04-02 -28 SVO
-133 6.1 2402620 1866-01-18 2402641 1866-02-08 -21 SVO
-132 5.8 2402926 1866-11-20 2402954 1866-12-18 -28 SVO
-131   2403234 1867-09-24 2403266 1867-10-26 -32 AnHar, 1909, vol 55, p 95
-129   2403874 1869-06-25 2403890 1869-07-11 -16 AnHar, 1909, vol 55, p 95
-128 5.8 2404190 1870-05-07 2404202 1870-05-19 -12 SVO
-127 5.7 2404509 1871-03-22 2404515 1871-03-28 -6 SVO
-126 5.9 2404814 1872-01-21 2404827 1872-02-03 -13 SVO
-125 5.9 2405127 1872-11-29 2405139 1872-12-11 -12 SVO
-124 5.6 2405440 1873-10-08 2405451 1873-10-19 -11 SVO
-122 5.6 2406074 1875-07-04 2406076 1875-07-06 -2 SVO
-121   2406390 1876-05-15 2406388 1876-05-13 2 AnHar, 1909, vol 55, p 95
-120 5.2 2406696 1877-03-17 2406700 1877-03-21 -4 SVO
-119 6.1 2407004 1878-01-19 2407012 1878-01-27 -8 SVO
-118 5.8 2407325 1878-12-06 2407324 1878-12-05 1 SVO
-116   2407955 1880-08-27 2407949 1880-08-21 6 MNRAS, 1915, vol 76, p 158
-114   2408588 1882-05-22 2408573 1882-05-07 15 AnHar, 1909, vol 55, p 95
-113   2408906 1883-04-05 2408885 1883-03-15 21 AnHar, 1909, vol 55, p 95
-112   2409220 1884-02-13 2409198 1884-01-22 22 AnHar, 1909, vol 55, p 95
-111   2409533 1884-12-22 2409510 1884-11-29 23 AnHar, 1909, vol 55, p 95
-110   2409839 1885-10-24 2409822 1885-10-07 17 MNRAS, 1915, vol 76, p 158
-107   2410790 1888-06-01 2410759 1888-05-01 31 AnHar, 1909, vol 55, p 95
-106   2411109 1889-04-16 2411071 1889-03-09 38 AnHar, 1909, vol 55, p 95
-105   2411417 1890-02-18 2411383 1890-01-15 34 AnHar, 1909, vol 55, p 95
-103   2412040 1891-11-03 2412007 1891-10-01 33 GuL, 1918, 1.1
-101 5.7 2412640 1893-06-25 2412632 1893-06-17 8 SVO
-100 6.4 2412956 1894-05-07 2412944 1894-04-25 12 SVO
-99 5.4 2413254 1895-03-01 2413256 1895-03-03 -2 SVO
-98 6.4 2413563 1896-01-04 2413568 1896-01-09 -5 SVO
-97   2413880 1896-11-16 2413881 1896-11-17 -1 AnHar, 1909, vol 55, p 95
-96   2414191 1897-09-23 2414193 1897-09-25 -2 MNRAS, 1915, vol 76, p 158
-94 5.9 2414784 1899-05-09 2414817 1899-06-11 -33 SVO
-93 5.1 2415110 1900-03-31 2415129 1900-04-19 -19 SVO
-92   2415435 1901-02-19 2415442 1901-02-26 -7 AnHar, 1909, vol 55, p 95
-91   2415735 1901-12-16 2415754 1902-01-04 -19 AnHar, 1909, vol 55, p 95
-90   2416050 1902-10-27 2416066 1902-11-12 -16 AnHar, 1909, vol 55, p 95
-88   2416667 1904-07-05 2416690 1904-07-28 -23 AnHar, 1909, vol 55, p 95
-87 6.0 2416980 1905-05-14 2417003 1905-06-06 -23 SVO
-86 5.6 2417300 1906-03-30 2417315 1906-04-14 -15 SVO
-85 5.3 2417608 1907-02-01 2417627 1907-02-20 -19 SVO
-84 5.8 2417934 1907-12-24 2417939 1907-12-29 -5 SVO
-83 6.0 2418257 1908-11-11 2418251 1908-11-05 6 SVO
-82 5.9 2418577 1909-09-27 2418564 1909-09-14 13 SVO
-81 6.6 2418882 1910-07-29 2418876 1910-07-23 6 SVO
-80 6.0 2419211 1911-06-23 2419188 1911-05-31 23 SVO
-79 5.3 2419527 1912-05-04 2419500 1912-04-07 27 SVO
-78 6.5 2419848 1913-03-21 2419812 1913-02-13 36 SVO
-77 6.0 2420174 1914-02-10 2420125 1913-12-23 49 SVO
-76 5.9 2420495 1914-12-28 2420437 1914-10-31 58 SVO
-75 5.2 2420799 1915-10-28 2420749 1915-09-08 50 SVO
-74 5.6 2421120 1916-09-13 2421061 1916-07-16 59 SVO
-73 5.5 2421429 1917-07-19 2421373 1917-05-24 56 SVO
-72 5.6 2421748 1918-06-03 2421686 1918-04-02 62 SVO
-71 6.7 2422068 1919-04-19 2421998 1919-02-08 70 SVO
-70 6.1 2422397 1920-03-13 2422310 1919-12-17 87 SVO
-69 5.8 2422700 1921-01-10 2422622 1920-10-24 78 SVO
-68 5.7 2423016 1921-11-22 2422934 1921-09-01 82 SVO
-67 5.7 2423330 1922-10-02 2423247 1922-07-11 83 SVO
-66 5.4 2423633 1923-08-01 2423559 1923-05-19 74 SVO
-65 6.4 2423949 1924-06-12 2423871 1924-03-26 78 SVO
-64 6.1 2424267 1925-04-26 2424183 1925-02-01 84 SVO
-63 5.5 2424572 1926-02-25 2424495 1925-12-10 77 SVO
-62 5.5 2424883 1927-01-02 2424808 1926-10-19 75 SVO
-61 5.7 2425190 1927-11-05 2425120 1927-08-27 70 SVO
-60 6.0 2425507 1928-09-17 2425432 1928-07-04 75 SVO
-59 5.5 2425826 1929-08-02 2425744 1929-05-12 82 SVO
-58 5.7 2426145 1930-06-17 2426056 1930-03-20 89 SVO
-57 5.7 2426457 1931-04-25 2426369 1931-01-27 88 SVO
-56 5.9 2426773 1932-03-06 2426681 1931-12-05 92 SVO
-55 6.0 2427079 1933-01-06 2426993 1932-10-12 86 SVO
-54 5.5 2427382 1933-11-05 2427305 1933-08-20 77 SVO
-53 5.6 2427692 1934-09-11 2427617 1934-06-28 75 SVO
-52 5.6 2427998 1935-07-14 2427930 1935-05-07 68 SVO
-51 5.9 2428316 1936-05-27 2428242 1936-03-14 74 SVO
-50 5.8 2428617 1937-03-24 2428554 1937-01-20 63 SVO
-49 5.7 2428922 1938-01-23 2428866 1937-11-28 56 SVO
-48 5.5 2429225 1938-11-22 2429178 1938-10-06 47 SVO
-47 5.8 2429535 1939-09-28 2429491 1939-08-15 44 SVO
-46 6.0 2429851 1940-08-09 2429803 1940-06-22 48 SVO
-45 5.8 2430160 1941-06-14 2430115 1941-04-30 45 SVO
-44 6.7 2430478 1942-04-28 2430427 1942-03-08 51 SVO
-43 5.9 2430796 1943-03-12 2430739 1943-01-14 57 SVO
-42 6.0 2431096 1944-01-06 2431052 1943-11-23 44 SVO
-41 5.7 2431403 1944-11-08 2431364 1944-09-30 39 AAVSO
-40   2431721 1945-09-22 2431676 1945-08-08 45 AAVSO
-39 5.9 2432034 1946-08-01 2431988 1946-06-16 46 SVO
-38 5.6 2432343 1947-06-06 2432300 1947-04-24 43 SVO
-37 5.5 2432652 1948-04-10 2432613 1948-03-02 39 SVO
-36 6.0 2432968 1949-02-20 2432925 1949-01-08 43 SVO
-35 5.4 2433273 1949-12-22 2433237 1949-11-16 36 SVO
-34 5.8 2433589 1950-11-03 2433549 1950-09-24 40 SVO
-33 5.7 2433906 1951-09-16 2433861 1951-08-02 45 SVO
-32 5.9 2434218 1952-07-24 2434174 1952-06-10 44 SVO
-31 5.8 2434536 1953-06-07 2434486 1953-04-18 50 SVO
-30 6.3 2434848 1954-04-15 2434798 1954-02-24 50 SVO
-29 5.7 2435160 1955-02-21 2435110 1955-01-02 50 SVO
-28 5.7 2435472 1955-12-30 2435422 1955-11-10 50 SVO
-27 6.0 2435786 1956-11-08 2435735 1956-09-18 51 SVO
-26 5.4 2436090 1957-09-08 2436047 1957-07-27 43 SVO
-25 6.1 2436391 1958-07-06 2436359 1958-06-04 32 SVO
-24 5.7 2436715 1959-05-26 2436671 1959-04-12 44 SVO
-23 5.4 2437032 1960-04-07 2436983 1960-02-18 49 SVO
-22 5.6 2437336 1961-02-05 2437296 1960-12-27 40 SVO
-21 5.6 2437648 1961-12-14 2437608 1961-11-04 40 SVO
-20 5.7 2437962 1962-10-24 2437920 1962-09-12 42 SVO
-19 5.7 2438276 1963-09-03 2438232 1963-07-21 44 SVO
-18 6.0 2438583 1964-07-06 2438544 1964-05-28 39 SVO
-17 5.3 2438890 1965-05-09 2438857 1965-04-06 33 SVO
-16 6.2 2439196 1966-03-11 2439169 1966-02-12 27 SVO
-15 5.5 2439504 1967-01-13 2439481 1966-12-21 23 SVO
-14 5.7 2439821 1967-11-26 2439793 1967-10-29 28 SVO
-13 5.6 2440134 1968-10-04 2440105 1968-09-05 29 SVO
-12 5.5 2440439 1969-08-05 2440418 1969-07-15 21 SVO
-11 5.3 2440737 1970-05-30 2440730 1970-05-23 7 SVO
-10 6.5 2441057 1971-04-15 2441042 1971-03-31 15 SVO
-9 5.8 2441368 1972-02-20 2441354 1972-02-06 14 SVO
-8 6.4 2441684 1973-01-01 2441666 1972-12-14 18 SVO
-7 5.6 2441992 1973-11-05 2441979 1973-10-23 13 SVO
-6 5.7 2442296 1974-09-05 2442291 1974-08-31 5 SVO
-5 5.7 2442607 1975-07-13 2442603 1975-07-09 4 SVO
-4 5.8 2442919 1976-05-20 2442915 1976-05-16 4 SVO
-3 5.5 2443235 1977-04-01 2443227 1977-03-24 8 SVO
-2 6.3 2443544 1978-02-04 2443540 1978-01-31 4 SVO
-1 5.4 2443844 1978-12-01 2443852 1978-12-09 -8 SVO
0 5.7 2444160 1979-10-13 2444164 1979-10-17 -4 SVO
1 5.7 2444478 1980-08-26 2444476 1980-08-24 2 SVO
2 5.4 2444800 1981-07-14 2444788 1981-07-02 12 SVO
3 5.3 2445106 1982-05-16 2445101 1982-05-11 5 SVO
4 5.7 2445429 1983-04-04 2445413 1983-03-19 16 SVO
5 6.3 2445748 1984-02-17 2445725 1984-01-25 23 SVO
6 6.0 2446067 1985-01-01 2446037 1984-12-02 30 SVO
7 5.5 2446371 1985-11-01 2446349 1985-10-10 22 SVO
8 5.9 2446687 1986-09-13 2446662 1986-08-19 25 SVO
9 5.7 2447004 1987-07-27 2446974 1987-06-27 30 SVO
10 5.6 2447310 1988-05-28 2447286 1988-05-04 24 SVO
11 5.5 2447623 1989-04-06 2447598 1989-03-12 25 SVO
12 6.2 2447946 1990-02-23 2447910 1990-01-18 36 SVO
13 6.1 2448258 1991-01-01 2448223 1990-11-27 35 SVO
14 5.5 2448554 1991-10-24 2448535 1991-10-05 19 SVO
15 5.3 2448861 1992-08-26 2448847 1992-08-12 14 SVO
16 6.4 2449186 1993-07-17 2449159 1993-06-20 27 SVO
17 5.7 2449497 1994-05-24 2449471 1994-04-28 26 SVO
18 6.5 2449810 1995-04-02 2449784 1995-03-07 26 SVO
19 5.8 2450122 1996-02-08 2450096 1996-01-13 26 SVO
20 6.3 2450439 1996-12-21 2450408 1996-11-20 31 SVO
21   2450750 1997-10-28 2450720 1997-09-28 30 AAVSO
22 5.4 2451049 1998-08-23 2451032 1998-08-06 17 SVO
23 5.4 2451361 1999-07-01 2451345 1999-06-15 16 SVO
24 5.8 2451668 2000-05-03 2451657 2000-04-22 11 SVO
25 5.5 2451983 2001-03-14 2451969 2001-02-28 14 SVO
26 5.9 2452291 2002-01-16 2452281 2002-01-06 10 SVO
27 5.7 2452605 2002-11-26 2452593 2002-11-14 12 SVO
28 6.0 2452907 2003-09-24 2452906 2003-09-23 1 SVO
29 6.0 2453224 2004-08-06 2453218 2004-07-31 6 SVO
30 5.5 2453543 2005-06-21 2453530 2005-06-08 13 SVO
31 5.7 2453849 2006-04-23 2453842 2006-04-16 7 SVO
32 6.0 2454163 2007-03-03 2454154 2007-02-22 9 SVO
33 5.6 2454465 2007-12-30 2454467 2008-01-01 -2 SVO
34 5.8 2454779 2008-11-08 2454779 2008-11-08 0 SVO
35 5.6 2455089 2009-09-14 2455091 2009-09-16 -2 SVO
36 6.4 2455405 2010-07-27 2455403 2010-07-25 2 SVO
37 5.3 2455710 2011-05-28 2455715 2011-06-02 -5 SVO
38 6.1 2456022 2012-04-04 2456028 2012-04-10 -6 SVO
39 6.0 2456336 2013-02-12 2456340 2013-02-16 -4 SVO
40 5.9 2456640 2013-12-13 2456652 2013-12-25 -12 SVO
41 5.8 2456953 2014-10-22 2456964 2014-11-02 -11 SVO
42 5.5 2457259 2015-08-24 2457276 2015-09-10 -17 SVO
43 6.2 2457579 2016-07-09 2457589 2016-07-19 -10 SVO
44 6.3 2457899 2017-05-25 2457901 2017-05-27 -2 SVO
45 5.7 2458218 2018-04-09 2458213 2018-04-04 5 SVO
46 5.7 2458522 2019-02-07 2458525 2019-02-10 -3 SVO
47 5.8 2458834 2019-12-16 2458837 2019-12-19 -3 SVO
48 5.7 2459151 2020-10-28 2459150 2020-10-27 1 SVO
49 6.2 2459458 2021-08-31 2459462 2021-09-04 -4 SVO
50 5.6 2459766 2022-07-05 2459774 2022-07-13 -8 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.