Maxima for R Boo
Period: 223.11, Epoch: 2455029
Back to main page  Mean light curve  Period diagram

E Mag O (JD) O (dat) C (JD) C (Dat) O-C Source
-247   2399832 1858-06-01 2399921 1858-08-29 -89 AnHar, 1909, vol 55, p 95
-245   2400297 1859-09-09 2400367 1859-11-18 -70 AnHar, 1909, vol 55, p 95
-244   2400501 1860-03-31 2400590 1860-06-28 -89 GuL, 1918, 1.1
-243   2400736 1860-11-21 2400813 1861-02-06 -77 GuL, 1918, 1.1
-241   2401175 1862-02-03 2401259 1862-04-28 -84 VeBam, 1931, vol 3, p 1
-240   2401403 1862-09-19 2401483 1862-12-08 -80 VeBam, 1931, vol 3, p 1
-239   2401621 1863-04-25 2401706 1863-07-19 -85 VeBam, 1931, vol 3, p 1
-238   2401850 1863-12-10 2401929 1864-02-27 -79 GuL, 1918, 1.1
-237 7.2 2402063 1864-07-10 2402152 1864-10-07 -89 SVO
-235   2402515 1865-10-05 2402598 1865-12-27 -83 AnHar, 1909, vol 55, p 95
-234 7.5 2402738 1866-05-16 2402821 1866-08-07 -83 SVO
-233 6.8 2402964 1866-12-28 2403044 1867-03-18 -80 SVO
-232 7.1 2403187 1867-08-08 2403267 1867-10-27 -80 SVO
-231   2403403 1868-03-11 2403491 1868-06-07 -88 AnHar, 1909, vol 55, p 95
-230   2403638 1868-11-01 2403714 1869-01-16 -76 VeBam, 1931, vol 3, p 1
-229 7.4 2403857 1869-06-08 2403937 1869-08-27 -80 SVO
-228   2404075 1870-01-12 2404160 1870-04-07 -85 AnHar, 1909, vol 55, p 95
-227 7.2 2404292 1870-08-17 2404383 1870-11-16 -91 SVO
-226 6.9 2404522 1871-04-04 2404606 1871-06-27 -84 SVO
-225   2404750 1871-11-18 2404829 1872-02-05 -79 VeBam, 1931, vol 3, p 1
-224 7.3 2404974 1872-06-29 2405052 1872-09-15 -78 SVO
-223   2405186 1873-01-27 2405275 1873-04-26 -89 AnHar, 1909, vol 55, p 95
-222 7.4 2405418 1873-09-16 2405499 1873-12-06 -81 SVO
-221 7.4 2405643 1874-04-29 2405722 1874-07-17 -79 SVO
-219   2406094 1875-07-24 2406168 1875-10-06 -74 AnHar, 1909, vol 55, p 95
-218   2406320 1876-03-06 2406391 1876-05-16 -71 AnHar, 1909, vol 55, p 95
-217   2406549 1876-10-21 2406614 1876-12-25 -65 GuL, 1918, 1.1
-216   2406776 1877-06-05 2406837 1877-08-05 -61 GuL, 1918, 1.1
-215   2407000 1878-01-15 2407060 1878-03-16 -60 AnHar, 1909, vol 55, p 95
-214 7.6 2407218 1878-08-21 2407283 1878-10-25 -65 SVO
-213   2407444 1879-04-04 2407507 1879-06-06 -63 AnHar, 1909, vol 55, p 95
-211 7.1 2407886 1880-06-19 2407953 1880-08-25 -67 SVO
-210   2408110 1881-01-29 2408176 1881-04-05 -66 GuL, 1918, 1.1
-209   2408332 1881-09-08 2408399 1881-11-14 -67 AnHar, 1909, vol 55, p 95
-208   2408564 1882-04-28 2408622 1882-06-25 -58 AnHar, 1909, vol 55, p 95
-207   2408777 1882-11-27 2408845 1883-02-03 -68 AnHar, 1909, vol 55, p 95
-206   2409001 1883-07-09 2409068 1883-09-14 -67 AnHar, 1909, vol 55, p 95
-205   2409227 1884-02-20 2409291 1884-04-24 -64 GuL, 1918, 1.1
-204   2409455 1884-10-05 2409515 1884-12-04 -60 AnHar, 1909, vol 55, p 95
-203 7.9 2409675 1885-05-13 2409738 1885-07-15 -63 SVO
-196   2411235 1889-08-20 2411299 1889-10-23 -64 AnHar, 1909, vol 55, p 95
-195   2411457 1890-03-30 2411523 1890-06-04 -66 GuL, 1918, 1.1
-191   2412347 1892-09-05 2412415 1892-11-12 -68 GuL, 1918, 1.1
-190   2412556 1893-04-02 2412638 1893-06-23 -82 GuL, 1918, 1.1
-189   2412785 1893-11-17 2412861 1894-02-01 -76 GuL, 1918, 1.1
-188   2413010 1894-06-30 2413084 1894-09-12 -74 AnHar, 1909, vol 55, p 95
-186   2413459 1895-09-22 2413531 1895-12-03 -72 AnHar, 1909, vol 55, p 95
-185   2413686 1896-05-06 2413754 1896-07-13 -68 AnHar, 1909, vol 55, p 95
-183 7.9 2414127 1897-07-21 2414200 1897-10-02 -73 SVO
-182   2414345 1898-02-24 2414423 1898-05-13 -78 AnHar, 1909, vol 55, p 95
-180 7.2 2414804 1899-05-29 2414869 1899-08-02 -65 SVO
-178   2415243 1900-08-11 2415315 1900-10-22 -72 AnHar, 1909, vol 55, p 95
-177 6.6 2415461 1901-03-17 2415539 1901-06-03 -78 SVO
-175 7.8 2415926 1902-06-25 2415985 1902-08-23 -59 SVO
-174   2416145 1903-01-30 2416208 1903-04-03 -63 AnHar, 1909, vol 55, p 95
-173   2416375 1903-09-17 2416431 1903-11-12 -56 AnHar, 1909, vol 55, p 95
-172   2416590 1904-04-19 2416654 1904-06-22 -64 AnHar, 1909, vol 55, p 95
-171   2416804 1904-11-19 2416877 1905-01-31 -73 AnHar, 1909, vol 55, p 95
-170 6.6 2417036 1905-07-09 2417100 1905-09-11 -64 AAVSO
-169 7.6 2417262 1906-02-20 2417323 1906-04-22 -61 SVO
-168 6.9 2417487 1906-10-03 2417547 1906-12-02 -60 SVO
-167 7.7 2417714 1907-05-18 2417770 1907-07-13 -56 SVO
-166 7.2 2417933 1907-12-23 2417993 1908-02-21 -60 SVO
-165 7.0 2418156 1908-08-02 2418216 1908-10-01 -60 SVO
-164 7.2 2418381 1909-03-15 2418439 1909-05-12 -58 SVO
-163 7.5 2418606 1909-10-26 2418662 1909-12-21 -56 SVO
-162 7.1 2418831 1910-06-08 2418885 1910-08-01 -54 SVO
-161 6.7 2419038 1911-01-01 2419108 1911-03-12 -70 AAVSO
-160 7.7 2419266 1911-08-17 2419331 1911-10-21 -65 SVO
-159 7.5 2419486 1912-03-24 2419555 1912-06-01 -69 SVO
-158 7.1 2419708 1912-11-01 2419778 1913-01-10 -70 SVO
-157 7.7 2419931 1913-06-12 2420001 1913-08-21 -70 SVO
-156 7.2 2420151 1914-01-18 2420224 1914-04-01 -73 SVO
-155 7.6 2420375 1914-08-30 2420447 1914-11-10 -72 SVO
-154 6.8 2420597 1915-04-09 2420670 1915-06-21 -73 SVO
-153 6.9 2420816 1915-11-14 2420893 1916-01-30 -77 SVO
-152 7.1 2421041 1916-06-26 2421116 1916-09-09 -75 SVO
-151 7.1 2421272 1917-02-12 2421339 1917-04-20 -67 SVO
-150 6.9 2421481 1917-09-09 2421563 1917-11-30 -82 SVO
-149 7.5 2421709 1918-04-25 2421786 1918-07-11 -77 SVO
-148 7.3 2421933 1918-12-05 2422009 1919-02-19 -76 SVO
-147 7.4 2422155 1919-07-15 2422232 1919-09-30 -77 SVO
-146 6.9 2422379 1920-02-24 2422455 1920-05-10 -76 SVO
-145 7.4 2422601 1920-10-03 2422678 1920-12-19 -77 SVO
-144 6.9 2422823 1921-05-13 2422901 1921-07-30 -78 SVO
-143 7.2 2423047 1921-12-23 2423124 1922-03-10 -77 SVO
-142 7.0 2423275 1922-08-08 2423347 1922-10-19 -72 SVO
-141 7.1 2423490 1923-03-11 2423570 1923-05-30 -80 SVO
-140 7.0 2423710 1923-10-17 2423794 1924-01-09 -84 SVO
-139 7.1 2423939 1924-06-02 2424017 1924-08-19 -78 SVO
-138 7.7 2424162 1925-01-11 2424240 1925-03-30 -78 SVO
-137 6.9 2424382 1925-08-19 2424463 1925-11-08 -81 SVO
-136 7.7 2424612 1926-04-06 2424686 1926-06-19 -74 SVO
-135 7.2 2424841 1926-11-21 2424909 1927-01-28 -68 SVO
-134 7.1 2425061 1927-06-29 2425132 1927-09-08 -71 SVO
-133 7.1 2425286 1928-02-09 2425355 1928-04-18 -69 SVO
-132 6.9 2425506 1928-09-16 2425578 1928-11-27 -72 SVO
-131 7.5 2425737 1929-05-05 2425802 1929-07-09 -65 SVO
-130 7.5 2425966 1929-12-20 2426025 1930-02-17 -59 SVO
-129 7.5 2426195 1930-08-06 2426248 1930-09-28 -53 SVO
-128 7.4 2426426 1931-03-25 2426471 1931-05-09 -45 SVO
-127 6.7 2426641 1931-10-26 2426694 1931-12-18 -53 SVO
-126 7.5 2426866 1932-06-07 2426917 1932-07-28 -51 SVO
-125 7.1 2427089 1933-01-16 2427140 1933-03-08 -51 SVO
-124 7.6 2427318 1933-09-02 2427363 1933-10-17 -45 SVO
-123 7.4 2427545 1934-04-17 2427586 1934-05-28 -41 SVO
-122 6.9 2427770 1934-11-28 2427810 1935-01-07 -40 SVO
-121 7.5 2427992 1935-07-08 2428033 1935-08-18 -41 SVO
-120 7.1 2428216 1936-02-17 2428256 1936-03-28 -40 SVO
-119 7.7 2428449 1936-10-07 2428479 1936-11-06 -30 SVO
-118 7.2 2428671 1937-05-17 2428702 1937-06-17 -31 SVO
-117 7.2 2428891 1937-12-23 2428925 1938-01-26 -34 SVO
-116 7.0 2429111 1938-07-31 2429148 1938-09-06 -37 SVO
-115 7.1 2429336 1939-03-13 2429371 1939-04-17 -35 SVO
-114 7.1 2429553 1939-10-16 2429594 1939-11-26 -41 SVO
-113 7.3 2429780 1940-05-30 2429818 1940-07-07 -38 SVO
-112 7.3 2430009 1941-01-14 2430041 1941-02-15 -32 SVO
-111 7.0 2430229 1941-08-22 2430264 1941-09-26 -35 SVO
-110 7.0 2430447 1942-03-28 2430487 1942-05-07 -40 SVO
-109 7.2 2430671 1942-11-07 2430710 1942-12-16 -39 AAVSO
-108 6.9 2430892 1943-06-16 2430933 1943-07-27 -41 SVO
-107 7.7 2431120 1944-01-30 2431156 1944-03-06 -36 SVO
-106 7.4 2431350 1944-09-16 2431379 1944-10-15 -29 SVO
-105 6.9 2431567 1945-04-21 2431602 1945-05-26 -35 SVO
-104 7.1 2431780 1945-11-20 2431826 1946-01-05 -46 SVO
-103 7.0 2432009 1946-07-07 2432049 1946-08-16 -40 SVO
-102 7.2 2432228 1947-02-11 2432272 1947-03-27 -44 SVO
-101 7.0 2432442 1947-09-13 2432495 1947-11-05 -53 SVO
-100 7.3 2432672 1948-04-30 2432718 1948-06-15 -46 SVO
-99 7.4 2432893 1948-12-07 2432941 1949-01-24 -48 SVO
-98 7.2 2433116 1949-07-18 2433164 1949-09-04 -48 SVO
-97 7.3 2433340 1950-02-27 2433387 1950-04-15 -47 SVO
-96 6.8 2433566 1950-10-11 2433610 1950-11-24 -44 SVO
-95 7.5 2433795 1951-05-28 2433834 1951-07-06 -39 SVO
-94 6.7 2434014 1952-01-02 2434057 1952-02-14 -43 SVO
-93 7.4 2434236 1952-08-11 2434280 1952-09-24 -44 SVO
-92 7.2 2434462 1953-03-25 2434503 1953-05-05 -41 SVO
-91 7.0 2434686 1953-11-04 2434726 1953-12-14 -40 SVO
-90 7.4 2434918 1954-06-24 2434949 1954-07-25 -31 SVO
-89 7.2 2435150 1955-02-11 2435172 1955-03-05 -22 SVO
-88 7.0 2435364 1955-09-13 2435395 1955-10-14 -31 SVO
-87 6.9 2435584 1956-04-20 2435618 1956-05-24 -34 SVO
-86 7.3 2435813 1956-12-05 2435842 1957-01-03 -29 SVO
-85 7.2 2436035 1957-07-15 2436065 1957-08-14 -30 SVO
-84 7.2 2436253 1958-02-18 2436288 1958-03-25 -35 SVO
-83 7.0 2436477 1958-09-30 2436511 1958-11-03 -34 SVO
-82 7.8 2436706 1959-05-17 2436734 1959-06-14 -28 SVO
-81 7.4 2436933 1959-12-30 2436957 1960-01-23 -24 SVO
-80 7.0 2437153 1960-08-06 2437180 1960-09-02 -27 SVO
-79 7.0 2437374 1961-03-15 2437403 1961-04-13 -29 SVO
-78 7.2 2437588 1961-10-15 2437626 1961-11-22 -38 SVO
-77 7.0 2437815 1962-05-30 2437850 1962-07-04 -35 SVO
-76 7.5 2438045 1963-01-15 2438073 1963-02-12 -28 SVO
-75 7.4 2438272 1963-08-30 2438296 1963-09-23 -24 SVO
-74 7.0 2438495 1964-04-09 2438519 1964-05-03 -24 SVO
-73 7.2 2438715 1964-11-15 2438742 1964-12-12 -27 SVO
-72 7.2 2438941 1965-06-29 2438965 1965-07-23 -24 SVO
-71 7.5 2439171 1966-02-14 2439188 1966-03-03 -17 SVO
-70 6.8 2439386 1966-09-17 2439411 1966-10-12 -25 SVO
-69 7.1 2439609 1967-04-28 2439634 1967-05-23 -25 SVO
-68 7.3 2439836 1967-12-11 2439858 1968-01-02 -22 SVO
-67 6.9 2440062 1968-07-24 2440081 1968-08-12 -19 SVO
-66 7.2 2440287 1969-03-06 2440304 1969-03-23 -17 SVO
-65 7.3 2440515 1969-10-20 2440527 1969-11-01 -12 SVO
-64 6.7 2440730 1970-05-23 2440750 1970-06-12 -20 SVO
-63 7.5 2440957 1971-01-05 2440973 1971-01-21 -16 SVO
-62 7.1 2441178 1971-08-14 2441196 1971-09-01 -18 SVO
-61 8.1 2441408 1972-03-31 2441419 1972-04-11 -11 SVO
-60 7.2 2441629 1972-11-07 2441642 1972-11-20 -13 SVO
-59 7.5 2441854 1973-06-20 2441866 1973-07-02 -12 SVO
-58 7.0 2442075 1974-01-27 2442089 1974-02-10 -14 SVO
-57 7.4 2442297 1974-09-06 2442312 1974-09-21 -15 SVO
-56 7.0 2442514 1975-04-11 2442535 1975-05-02 -21 SVO
-55 7.6 2442739 1975-11-22 2442758 1975-12-11 -19 SVO
-54 7.4 2442964 1976-07-04 2442981 1976-07-21 -17 SVO
-53 7.6 2443189 1977-02-14 2443204 1977-03-01 -15 SVO
-52 7.0 2443411 1977-09-24 2443427 1977-10-10 -16 SVO
-51 7.3 2443629 1978-04-30 2443650 1978-05-21 -21 SVO
-50 7.5 2443853 1978-12-10 2443874 1978-12-31 -21 SVO
-49 7.1 2444073 1979-07-18 2444097 1979-08-11 -24 SVO
-48 7.4 2444299 1980-02-29 2444320 1980-03-21 -21 SVO
-47 7.2 2444522 1980-10-09 2444543 1980-10-30 -21 SVO
-46 7.1 2444737 1981-05-12 2444766 1981-06-10 -29 SVO
-45 7.0 2444965 1981-12-26 2444989 1982-01-19 -24 SVO
-44 6.9 2445186 1982-08-04 2445212 1982-08-30 -26 SVO
-43 7.4 2445418 1983-03-24 2445435 1983-04-10 -17 SVO
-42 7.8 2445642 1983-11-03 2445658 1983-11-19 -16 SVO
-41 6.9 2445861 1984-06-09 2445881 1984-06-29 -20 SVO
-40 7.4 2446082 1985-01-16 2446105 1985-02-08 -23 SVO
-39 7.3 2446313 1985-09-04 2446328 1985-09-19 -15 SVO
-38 7.2 2446530 1986-04-09 2446551 1986-04-30 -21 SVO
-37 7.3 2446749 1986-11-14 2446774 1986-12-09 -25 SVO
-36 7.3 2446973 1987-06-26 2446997 1987-07-20 -24 SVO
-35 6.9 2447196 1988-02-04 2447220 1988-02-28 -24 SVO
-34 7.8 2447425 1988-09-20 2447443 1988-10-08 -18 SVO
-33 7.0 2447642 1989-04-25 2447666 1989-05-19 -24 SVO
-32 7.4 2447870 1989-12-09 2447889 1989-12-28 -19 SVO
-31 7.1 2448088 1990-07-15 2448113 1990-08-09 -25 SVO
-30 7.4 2448313 1991-02-25 2448336 1991-03-20 -23 SVO
-29 7.3 2448544 1991-10-14 2448559 1991-10-29 -15 SVO
-28 7.3 2448766 1992-05-23 2448782 1992-06-08 -16 SVO
-27 7.4 2448996 1993-01-08 2449005 1993-01-17 -9 SVO
-26 7.5 2449223 1993-08-23 2449228 1993-08-28 -5 SVO
-25 6.8 2449440 1994-03-28 2449451 1994-04-08 -11 SVO
-24 7.4 2449665 1994-11-08 2449674 1994-11-17 -9 SVO
-23 7.1 2449894 1995-06-25 2449897 1995-06-28 -3 SVO
-22 8.1 2450121 1996-02-07 2450121 1996-02-07 0 SVO
-21 7.3 2450346 1996-09-19 2450344 1996-09-17 2 SVO
-20 7.5 2450575 1997-05-06 2450567 1997-04-28 8 SVO
-19 6.9 2450794 1997-12-11 2450790 1997-12-07 4 SVO
-18 7.2 2451014 1998-07-19 2451013 1998-07-18 1 SVO
-17 7.3 2451234 1999-02-24 2451236 1999-02-26 -2 SVO
-16 7.0 2451458 1999-10-06 2451459 1999-10-07 -1 SVO
-15 7.7 2451689 2000-05-24 2451682 2000-05-17 7 SVO
-14 7.2 2451913 2001-01-03 2451905 2000-12-26 8 SVO
-13 7.0 2452132 2001-08-10 2452129 2001-08-07 3 SVO
-12 7.5 2452355 2002-03-21 2452352 2002-03-18 3 SVO
-11 7.5 2452585 2002-11-06 2452575 2002-10-27 10 SVO
-10 6.8 2452805 2003-06-14 2452798 2003-06-07 7 SVO
-9 7.2 2453023 2004-01-18 2453021 2004-01-16 2 SVO
-8 7.1 2453247 2004-08-29 2453244 2004-08-26 3 SVO
-7 7.2 2453464 2005-04-03 2453467 2005-04-06 -3 SVO
-6 7.3 2453693 2005-11-18 2453690 2005-11-15 3 SVO
-5 7.2 2453918 2006-07-01 2453913 2006-06-26 5 SVO
-4 7.3 2454138 2007-02-06 2454137 2007-02-05 1 SVO
-3 7.1 2454363 2007-09-19 2454360 2007-09-16 3 SVO
-2 7.5 2454588 2008-05-01 2454583 2008-04-26 5 SVO
-1 6.9 2454810 2008-12-09 2454806 2008-12-05 4 SVO
0 7.5 2455038 2009-07-25 2455029 2009-07-16 9 SVO
1 7.3 2455263 2010-03-07 2455252 2010-02-24 11 SVO
2 7.3 2455486 2010-10-16 2455475 2010-10-05 11 SVO
3 6.9 2455707 2011-05-25 2455698 2011-05-16 9 SVO
4 7.1 2455933 2012-01-06 2455921 2011-12-25 12 SVO
5 7.6 2456160 2012-08-20 2456145 2012-08-05 15 SVO
6 7.3 2456382 2013-03-30 2456368 2013-03-16 14 SVO
7 7.4 2456615 2013-11-18 2456591 2013-10-25 24 SVO
8 7.0 2456834 2014-06-25 2456814 2014-06-05 20 SVO
9 6.9 2457054 2015-01-31 2457037 2015-01-14 17 SVO
10 7.5 2457282 2015-09-16 2457260 2015-08-25 22 SVO
11 6.8 2457498 2016-04-19 2457483 2016-04-04 15 SVO
12 7.4 2457723 2016-11-30 2457706 2016-11-13 17 SVO
13 7.5 2457948 2017-07-13 2457929 2017-06-24 19 SVO
14 7.2 2458171 2018-02-21 2458153 2018-02-03 18 SVO
15 7.6 2458400 2018-10-08 2458376 2018-09-14 24 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.