Maxima for R Boo
Period: 223.56, Epoch: 2455044
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 2399825 1858-05-25 7 AnHar, 1909, vol 55, p 95
-245   2400297 1859-09-09 2400272 1859-08-15 25 AnHar, 1909, vol 55, p 95
-244   2400501 1860-03-31 2400495 1860-03-25 6 GuL, 1918, 1.1
-243   2400736 1860-11-21 2400719 1860-11-04 17 GuL, 1918, 1.1
-241   2401175 1862-02-03 2401166 1862-01-25 9 VeBam, 1931, vol 3, p 1
-240   2401403 1862-09-19 2401390 1862-09-06 13 VeBam, 1931, vol 3, p 1
-239   2401621 1863-04-25 2401613 1863-04-17 8 VeBam, 1931, vol 3, p 1
-238   2401850 1863-12-10 2401837 1863-11-27 13 GuL, 1918, 1.1
-237 7.2 2402063 1864-07-10 2402060 1864-07-07 3 SVO
-235   2402515 1865-10-05 2402507 1865-09-27 8 AnHar, 1909, vol 55, p 95
-234 7.5 2402738 1866-05-16 2402731 1866-05-09 7 SVO
-233 6.8 2402964 1866-12-28 2402955 1866-12-19 9 SVO
-232 7.1 2403187 1867-08-08 2403178 1867-07-30 9 SVO
-231   2403403 1868-03-11 2403402 1868-03-10 1 AnHar, 1909, vol 55, p 95
-230   2403638 1868-11-01 2403625 1868-10-19 13 VeBam, 1931, vol 3, p 1
-229 7.4 2403857 1869-06-08 2403849 1869-05-31 8 SVO
-228   2404075 1870-01-12 2404072 1870-01-09 3 AnHar, 1909, vol 55, p 95
-227 7.2 2404292 1870-08-17 2404296 1870-08-21 -4 SVO
-226 6.9 2404522 1871-04-04 2404519 1871-04-01 3 SVO
-225   2404750 1871-11-18 2404743 1871-11-11 7 VeBam, 1931, vol 3, p 1
-224 7.3 2404974 1872-06-29 2404967 1872-06-22 7 SVO
-223   2405186 1873-01-27 2405190 1873-01-31 -4 AnHar, 1909, vol 55, p 95
-222 7.4 2405418 1873-09-16 2405414 1873-09-12 4 SVO
-221 7.4 2405643 1874-04-29 2405637 1874-04-23 6 SVO
-219   2406094 1875-07-24 2406084 1875-07-14 10 AnHar, 1909, vol 55, p 95
-218   2406320 1876-03-06 2406308 1876-02-23 12 AnHar, 1909, vol 55, p 95
-217   2406549 1876-10-21 2406531 1876-10-03 18 GuL, 1918, 1.1
-216   2406776 1877-06-05 2406755 1877-05-15 21 GuL, 1918, 1.1
-215   2407000 1878-01-15 2406979 1877-12-25 21 AnHar, 1909, vol 55, p 95
-214 7.6 2407218 1878-08-21 2407202 1878-08-05 16 SVO
-213   2407444 1879-04-04 2407426 1879-03-17 18 AnHar, 1909, vol 55, p 95
-211 7.1 2407886 1880-06-19 2407873 1880-06-06 13 SVO
-210   2408110 1881-01-29 2408096 1881-01-15 14 GuL, 1918, 1.1
-209   2408332 1881-09-08 2408320 1881-08-27 12 AnHar, 1909, vol 55, p 95
-208   2408564 1882-04-28 2408544 1882-04-08 20 AnHar, 1909, vol 55, p 95
-207   2408777 1882-11-27 2408767 1882-11-17 10 AnHar, 1909, vol 55, p 95
-206   2409001 1883-07-09 2408991 1883-06-29 10 AnHar, 1909, vol 55, p 95
-205   2409227 1884-02-20 2409214 1884-02-07 13 GuL, 1918, 1.1
-204   2409455 1884-10-05 2409438 1884-09-18 17 AnHar, 1909, vol 55, p 95
-203 7.9 2409675 1885-05-13 2409661 1885-04-29 14 SVO
-196   2411235 1889-08-20 2411226 1889-08-11 9 AnHar, 1909, vol 55, p 95
-195   2411457 1890-03-30 2411450 1890-03-23 7 GuL, 1918, 1.1
-191   2412347 1892-09-05 2412344 1892-09-02 3 GuL, 1918, 1.1
-190   2412556 1893-04-02 2412568 1893-04-14 -12 GuL, 1918, 1.1
-189   2412785 1893-11-17 2412791 1893-11-23 -6 GuL, 1918, 1.1
-188   2413010 1894-06-30 2413015 1894-07-05 -5 AnHar, 1909, vol 55, p 95
-186   2413459 1895-09-22 2413462 1895-09-25 -3 AnHar, 1909, vol 55, p 95
-185   2413686 1896-05-06 2413685 1896-05-05 1 AnHar, 1909, vol 55, p 95
-183 7.9 2414127 1897-07-21 2414133 1897-07-27 -6 SVO
-182   2414345 1898-02-24 2414356 1898-03-07 -11 AnHar, 1909, vol 55, p 95
-180 7.2 2414804 1899-05-29 2414803 1899-05-28 1 SVO
-178   2415243 1900-08-11 2415250 1900-08-18 -7 AnHar, 1909, vol 55, p 95
-177 6.6 2415461 1901-03-17 2415474 1901-03-30 -13 SVO
-175 7.8 2415926 1902-06-25 2415921 1902-06-20 5 SVO
-174   2416145 1903-01-30 2416145 1903-01-30 0 AnHar, 1909, vol 55, p 95
-173   2416375 1903-09-17 2416368 1903-09-10 7 AnHar, 1909, vol 55, p 95
-172   2416590 1904-04-19 2416592 1904-04-21 -2 AnHar, 1909, vol 55, p 95
-171   2416804 1904-11-19 2416815 1904-11-30 -11 AnHar, 1909, vol 55, p 95
-170 6.6 2417036 1905-07-09 2417039 1905-07-12 -3 AAVSO
-169 7.6 2417262 1906-02-20 2417262 1906-02-20 0 SVO
-168 6.9 2417487 1906-10-03 2417486 1906-10-02 1 SVO
-167 7.7 2417714 1907-05-18 2417709 1907-05-13 5 SVO
-166 7.2 2417933 1907-12-23 2417933 1907-12-23 0 SVO
-165 7.0 2418156 1908-08-02 2418157 1908-08-03 -1 SVO
-164 7.2 2418381 1909-03-15 2418380 1909-03-14 1 SVO
-163 7.5 2418606 1909-10-26 2418604 1909-10-24 2 SVO
-162 7.1 2418831 1910-06-08 2418827 1910-06-04 4 SVO
-161 6.7 2419038 1911-01-01 2419051 1911-01-14 -13 AAVSO
-160 7.7 2419266 1911-08-17 2419274 1911-08-25 -8 SVO
-159 7.5 2419486 1912-03-24 2419498 1912-04-05 -12 SVO
-158 7.1 2419708 1912-11-01 2419722 1912-11-15 -14 SVO
-157 7.7 2419931 1913-06-12 2419945 1913-06-26 -14 SVO
-156 7.2 2420151 1914-01-18 2420169 1914-02-05 -18 SVO
-155 7.6 2420375 1914-08-30 2420392 1914-09-16 -17 SVO
-154 6.8 2420597 1915-04-09 2420616 1915-04-28 -19 SVO
-153 6.9 2420816 1915-11-14 2420839 1915-12-07 -23 SVO
-152 7.1 2421041 1916-06-26 2421063 1916-07-18 -22 SVO
-151 7.1 2421272 1917-02-12 2421286 1917-02-26 -14 SVO
-150 6.9 2421481 1917-09-09 2421510 1917-10-08 -29 SVO
-149 7.5 2421709 1918-04-25 2421734 1918-05-20 -25 SVO
-148 7.3 2421933 1918-12-05 2421957 1918-12-29 -24 SVO
-147 7.4 2422155 1919-07-15 2422181 1919-08-10 -26 SVO
-146 6.9 2422379 1920-02-24 2422404 1920-03-20 -25 SVO
-145 7.4 2422601 1920-10-03 2422628 1920-10-30 -27 SVO
-144 6.9 2422823 1921-05-13 2422851 1921-06-10 -28 SVO
-143 7.2 2423047 1921-12-23 2423075 1922-01-20 -28 SVO
-142 7.0 2423275 1922-08-08 2423298 1922-08-31 -23 SVO
-141 7.1 2423490 1923-03-11 2423522 1923-04-12 -32 SVO
-140 7.0 2423710 1923-10-17 2423746 1923-11-22 -36 SVO
-139 7.1 2423939 1924-06-02 2423969 1924-07-02 -30 SVO
-138 7.7 2424162 1925-01-11 2424193 1925-02-11 -31 SVO
-137 6.9 2424382 1925-08-19 2424416 1925-09-22 -34 SVO
-136 7.7 2424612 1926-04-06 2424640 1926-05-04 -28 SVO
-135 7.2 2424841 1926-11-21 2424863 1926-12-13 -22 SVO
-134 7.1 2425061 1927-06-29 2425087 1927-07-25 -26 SVO
-133 7.1 2425286 1928-02-09 2425311 1928-03-05 -25 SVO
-132 6.9 2425506 1928-09-16 2425534 1928-10-14 -28 SVO
-131 7.5 2425737 1929-05-05 2425758 1929-05-26 -21 SVO
-130 7.5 2425966 1929-12-20 2425981 1930-01-04 -15 SVO
-129 7.5 2426195 1930-08-06 2426205 1930-08-16 -10 SVO
-128 7.4 2426426 1931-03-25 2426428 1931-03-27 -2 SVO
-127 6.7 2426641 1931-10-26 2426652 1931-11-06 -11 SVO
-126 7.5 2426866 1932-06-07 2426875 1932-06-16 -9 SVO
-125 7.1 2427089 1933-01-16 2427099 1933-01-26 -10 SVO
-124 7.6 2427318 1933-09-02 2427323 1933-09-07 -5 SVO
-123 7.4 2427545 1934-04-17 2427546 1934-04-18 -1 SVO
-122 6.9 2427770 1934-11-28 2427770 1934-11-28 0 SVO
-121 7.5 2427992 1935-07-08 2427993 1935-07-09 -1 SVO
-120 7.1 2428216 1936-02-17 2428217 1936-02-18 -1 SVO
-119 7.7 2428449 1936-10-07 2428440 1936-09-28 9 SVO
-118 7.2 2428671 1937-05-17 2428664 1937-05-10 7 SVO
-117 7.2 2428891 1937-12-23 2428887 1937-12-19 4 SVO
-116 7.0 2429111 1938-07-31 2429111 1938-07-31 0 SVO
-115 7.1 2429336 1939-03-13 2429335 1939-03-12 1 SVO
-114 7.1 2429553 1939-10-16 2429558 1939-10-21 -5 SVO
-113 7.3 2429780 1940-05-30 2429782 1940-06-01 -2 SVO
-112 7.3 2430009 1941-01-14 2430005 1941-01-10 4 SVO
-111 7.0 2430229 1941-08-22 2430229 1941-08-22 0 SVO
-110 7.0 2430447 1942-03-28 2430452 1942-04-02 -5 SVO
-109 7.2 2430671 1942-11-07 2430676 1942-11-12 -5 AAVSO
-108 6.9 2430892 1943-06-16 2430900 1943-06-24 -8 SVO
-107 7.7 2431120 1944-01-30 2431123 1944-02-02 -3 SVO
-106 7.4 2431350 1944-09-16 2431347 1944-09-13 3 SVO
-105 6.9 2431567 1945-04-21 2431570 1945-04-24 -3 SVO
-104 7.1 2431780 1945-11-20 2431794 1945-12-04 -14 SVO
-103 7.0 2432009 1946-07-07 2432017 1946-07-15 -8 SVO
-102 7.2 2432228 1947-02-11 2432241 1947-02-24 -13 SVO
-101 7.0 2432442 1947-09-13 2432464 1947-10-05 -22 SVO
-100 7.3 2432672 1948-04-30 2432688 1948-05-16 -16 SVO
-99 7.4 2432893 1948-12-07 2432912 1948-12-26 -19 SVO
-98 7.2 2433116 1949-07-18 2433135 1949-08-06 -19 SVO
-97 7.3 2433340 1950-02-27 2433359 1950-03-18 -19 SVO
-96 6.8 2433566 1950-10-11 2433582 1950-10-27 -16 SVO
-95 7.5 2433795 1951-05-28 2433806 1951-06-08 -11 SVO
-94 6.7 2434014 1952-01-02 2434029 1952-01-17 -15 SVO
-93 7.4 2434236 1952-08-11 2434253 1952-08-28 -17 SVO
-92 7.2 2434462 1953-03-25 2434476 1953-04-08 -14 SVO
-91 7.0 2434686 1953-11-04 2434700 1953-11-18 -14 SVO
-90 7.4 2434918 1954-06-24 2434924 1954-06-30 -6 SVO
-89 7.2 2435150 1955-02-11 2435147 1955-02-08 3 SVO
-88 7.0 2435364 1955-09-13 2435371 1955-09-20 -7 SVO
-87 6.9 2435584 1956-04-20 2435594 1956-04-30 -10 SVO
-86 7.3 2435813 1956-12-05 2435818 1956-12-10 -5 SVO
-85 7.2 2436035 1957-07-15 2436041 1957-07-21 -6 SVO
-84 7.2 2436253 1958-02-18 2436265 1958-03-02 -12 SVO
-83 7.0 2436477 1958-09-30 2436489 1958-10-12 -12 SVO
-82 7.8 2436706 1959-05-17 2436712 1959-05-23 -6 SVO
-81 7.4 2436933 1959-12-30 2436936 1960-01-02 -3 SVO
-80 7.0 2437153 1960-08-06 2437159 1960-08-12 -6 SVO
-79 7.0 2437374 1961-03-15 2437383 1961-03-24 -9 SVO
-78 7.2 2437588 1961-10-15 2437606 1961-11-02 -18 SVO
-77 7.0 2437815 1962-05-30 2437830 1962-06-14 -15 SVO
-76 7.5 2438045 1963-01-15 2438053 1963-01-23 -8 SVO
-75 7.4 2438272 1963-08-30 2438277 1963-09-04 -5 SVO
-74 7.0 2438495 1964-04-09 2438501 1964-04-15 -6 SVO
-73 7.2 2438715 1964-11-15 2438724 1964-11-24 -9 SVO
-72 7.2 2438941 1965-06-29 2438948 1965-07-06 -7 SVO
-71 7.5 2439171 1966-02-14 2439171 1966-02-14 0 SVO
-70 6.8 2439386 1966-09-17 2439395 1966-09-26 -9 SVO
-69 7.1 2439609 1967-04-28 2439618 1967-05-07 -9 SVO
-68 7.3 2439836 1967-12-11 2439842 1967-12-17 -6 SVO
-67 6.9 2440062 1968-07-24 2440065 1968-07-27 -3 SVO
-66 7.2 2440287 1969-03-06 2440289 1969-03-08 -2 SVO
-65 7.3 2440515 1969-10-20 2440513 1969-10-18 2 SVO
-64 6.7 2440730 1970-05-23 2440736 1970-05-29 -6 SVO
-63 7.5 2440957 1971-01-05 2440960 1971-01-08 -3 SVO
-62 7.1 2441178 1971-08-14 2441183 1971-08-19 -5 SVO
-61 8.1 2441408 1972-03-31 2441407 1972-03-30 1 SVO
-60 7.2 2441629 1972-11-07 2441630 1972-11-08 -1 SVO
-59 7.5 2441854 1973-06-20 2441854 1973-06-20 0 SVO
-58 7.0 2442075 1974-01-27 2442078 1974-01-30 -3 SVO
-57 7.4 2442297 1974-09-06 2442301 1974-09-10 -4 SVO
-56 7.0 2442514 1975-04-11 2442525 1975-04-22 -11 SVO
-55 7.6 2442739 1975-11-22 2442748 1975-12-01 -9 SVO
-54 7.4 2442964 1976-07-04 2442972 1976-07-12 -8 SVO
-53 7.6 2443189 1977-02-14 2443195 1977-02-20 -6 SVO
-52 7.0 2443411 1977-09-24 2443419 1977-10-02 -8 SVO
-51 7.3 2443629 1978-04-30 2443642 1978-05-13 -13 SVO
-50 7.5 2443853 1978-12-10 2443866 1978-12-23 -13 SVO
-49 7.1 2444073 1979-07-18 2444090 1979-08-04 -17 SVO
-48 7.4 2444299 1980-02-29 2444313 1980-03-14 -14 SVO
-47 7.2 2444522 1980-10-09 2444537 1980-10-24 -15 SVO
-46 7.1 2444737 1981-05-12 2444760 1981-06-04 -23 SVO
-45 7.0 2444965 1981-12-26 2444984 1982-01-14 -19 SVO
-44 6.9 2445186 1982-08-04 2445207 1982-08-25 -21 SVO
-43 7.4 2445418 1983-03-24 2445431 1983-04-06 -13 SVO
-42 7.8 2445642 1983-11-03 2445654 1983-11-15 -12 SVO
-41 6.9 2445861 1984-06-09 2445878 1984-06-26 -17 SVO
-40 7.4 2446082 1985-01-16 2446102 1985-02-05 -20 SVO
-39 7.3 2446313 1985-09-04 2446325 1985-09-16 -12 SVO
-38 7.2 2446530 1986-04-09 2446549 1986-04-28 -19 SVO
-37 7.3 2446749 1986-11-14 2446772 1986-12-07 -23 SVO
-36 7.3 2446973 1987-06-26 2446996 1987-07-19 -23 SVO
-35 6.9 2447196 1988-02-04 2447219 1988-02-27 -23 SVO
-34 7.8 2447425 1988-09-20 2447443 1988-10-08 -18 SVO
-33 7.0 2447642 1989-04-25 2447667 1989-05-20 -25 SVO
-32 7.4 2447870 1989-12-09 2447890 1989-12-29 -20 SVO
-31 7.1 2448088 1990-07-15 2448114 1990-08-10 -26 SVO
-30 7.4 2448313 1991-02-25 2448337 1991-03-21 -24 SVO
-29 7.3 2448544 1991-10-14 2448561 1991-10-31 -17 SVO
-28 7.3 2448766 1992-05-23 2448784 1992-06-10 -18 SVO
-27 7.4 2448996 1993-01-08 2449008 1993-01-20 -12 SVO
-26 7.5 2449223 1993-08-23 2449231 1993-08-31 -8 SVO
-25 6.8 2449440 1994-03-28 2449455 1994-04-12 -15 SVO
-24 7.4 2449665 1994-11-08 2449679 1994-11-22 -14 SVO
-23 7.1 2449894 1995-06-25 2449902 1995-07-03 -8 SVO
-22 8.1 2450121 1996-02-07 2450126 1996-02-12 -5 SVO
-21 7.3 2450346 1996-09-19 2450349 1996-09-22 -3 SVO
-20 7.5 2450575 1997-05-06 2450573 1997-05-04 2 SVO
-19 6.9 2450794 1997-12-11 2450796 1997-12-13 -2 SVO
-18 7.2 2451014 1998-07-19 2451020 1998-07-25 -6 SVO
-17 7.3 2451234 1999-02-24 2451243 1999-03-05 -9 SVO
-16 7.0 2451458 1999-10-06 2451467 1999-10-15 -9 SVO
-15 7.7 2451689 2000-05-24 2451691 2000-05-26 -2 SVO
-14 7.2 2451913 2001-01-03 2451914 2001-01-04 -1 SVO
-13 7.0 2452132 2001-08-10 2452138 2001-08-16 -6 SVO
-12 7.5 2452355 2002-03-21 2452361 2002-03-27 -6 SVO
-11 7.5 2452585 2002-11-06 2452585 2002-11-06 0 SVO
-10 6.8 2452805 2003-06-14 2452808 2003-06-17 -3 SVO
-9 7.2 2453023 2004-01-18 2453032 2004-01-27 -9 SVO
-8 7.1 2453247 2004-08-29 2453256 2004-09-07 -9 SVO
-7 7.2 2453464 2005-04-03 2453479 2005-04-18 -15 SVO
-6 7.3 2453693 2005-11-18 2453703 2005-11-28 -10 SVO
-5 7.2 2453918 2006-07-01 2453926 2006-07-09 -8 SVO
-4 7.3 2454138 2007-02-06 2454150 2007-02-18 -12 SVO
-3 7.1 2454363 2007-09-19 2454373 2007-09-29 -10 SVO
-2 7.5 2454588 2008-05-01 2454597 2008-05-10 -9 SVO
-1 6.9 2454810 2008-12-09 2454820 2008-12-19 -10 SVO
0 7.5 2455038 2009-07-25 2455044 2009-07-31 -6 SVO
1 7.3 2455263 2010-03-07 2455268 2010-03-12 -5 SVO
2 7.3 2455486 2010-10-16 2455491 2010-10-21 -5 SVO
3 6.9 2455707 2011-05-25 2455715 2011-06-02 -8 SVO
4 7.1 2455933 2012-01-06 2455938 2012-01-11 -5 SVO
5 7.6 2456160 2012-08-20 2456162 2012-08-22 -2 SVO
6 7.3 2456382 2013-03-30 2456385 2013-04-02 -3 SVO
7 7.4 2456615 2013-11-18 2456609 2013-11-12 6 SVO
8 7.0 2456834 2014-06-25 2456832 2014-06-23 2 SVO
9 6.9 2457054 2015-01-31 2457056 2015-02-02 -2 SVO
10 7.5 2457282 2015-09-16 2457280 2015-09-14 2 SVO
11 6.8 2457498 2016-04-19 2457503 2016-04-24 -5 SVO
12 7.4 2457723 2016-11-30 2457727 2016-12-04 -4 SVO
13 7.5 2457948 2017-07-13 2457950 2017-07-15 -2 SVO
14 7.2 2458171 2018-02-21 2458174 2018-02-24 -3 SVO
15 7.6 2458400 2018-10-08 2458397 2018-10-05 3 SVO
16 7.1 2458620 2019-05-16 2458621 2019-05-17 -1 SVO
17 7.3 2458845 2019-12-27 2458845 2019-12-27 0 SVO
18 7.3 2459070 2020-08-08 2459068 2020-08-06 2 SVO
19 7.0 2459290 2021-03-16 2459292 2021-03-18 -2 SVO
20 7.0 2459508 2021-10-20 2459515 2021-10-27 -7 SVO
21 8.1 2459738 2022-06-07 2459739 2022-06-08 -1 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.