Maxima for R Boo
Period: 223.4, Epoch: 2444518
Back to main page  Mean light curve  Period diagram

E Mag O (JD) O (dat) C (JD) C (Dat) O-C Source
-200   2399832 1858-06-01 2399838 1858-06-07 -6 AnHar, 1909, vol 55, p 95
-198   2400297 1859-09-09 2400285 1859-08-28 12 AnHar, 1909, vol 55, p 95
-197   2400501 1860-03-31 2400508 1860-04-07 -7 GuL, 1918, 1.1
-196   2400736 1860-11-21 2400732 1860-11-17 4 GuL, 1918, 1.1
-194   2401175 1862-02-03 2401178 1862-02-06 -3 VeBam, 1931, vol 3, p 1
-193   2401403 1862-09-19 2401402 1862-09-18 1 VeBam, 1931, vol 3, p 1
-192   2401621 1863-04-25 2401625 1863-04-29 -4 VeBam, 1931, vol 3, p 1
-191   2401850 1863-12-10 2401849 1863-12-09 1 GuL, 1918, 1.1
-190 7.2 2402063 1864-07-10 2402072 1864-07-19 -9 SVO
-188   2402515 1865-10-05 2402519 1865-10-09 -4 AnHar, 1909, vol 55, p 95
-187 7.5 2402738 1866-05-16 2402742 1866-05-20 -4 SVO
-186 6.8 2402964 1866-12-28 2402966 1866-12-30 -2 SVO
-185 7.1 2403187 1867-08-08 2403189 1867-08-10 -2 SVO
-184   2403403 1868-03-11 2403412 1868-03-20 -9 AnHar, 1909, vol 55, p 95
-183   2403638 1868-11-01 2403636 1868-10-30 2 VeBam, 1931, vol 3, p 1
-182 7.4 2403857 1869-06-08 2403859 1869-06-10 -2 SVO
-181   2404075 1870-01-12 2404083 1870-01-20 -8 AnHar, 1909, vol 55, p 95
-180 7.2 2404292 1870-08-17 2404306 1870-08-31 -14 SVO
-179 6.9 2404522 1871-04-04 2404529 1871-04-11 -7 SVO
-178   2404750 1871-11-18 2404753 1871-11-21 -3 VeBam, 1931, vol 3, p 1
-177 7.3 2404974 1872-06-29 2404976 1872-07-01 -2 SVO
-176   2405186 1873-01-27 2405200 1873-02-10 -14 AnHar, 1909, vol 55, p 95
-175 7.4 2405418 1873-09-16 2405423 1873-09-21 -5 SVO
-174 7.4 2405643 1874-04-29 2405646 1874-05-02 -3 SVO
-172   2406094 1875-07-24 2406093 1875-07-23 1 AnHar, 1909, vol 55, p 95
-171   2406320 1876-03-06 2406317 1876-03-03 3 AnHar, 1909, vol 55, p 95
-170   2406549 1876-10-21 2406540 1876-10-12 9 GuL, 1918, 1.1
-169   2406776 1877-06-05 2406763 1877-05-23 13 GuL, 1918, 1.1
-168   2407000 1878-01-15 2406987 1878-01-02 13 AnHar, 1909, vol 55, p 95
-167 7.6 2407218 1878-08-21 2407210 1878-08-13 8 SVO
-166   2407444 1879-04-04 2407434 1879-03-25 10 AnHar, 1909, vol 55, p 95
-164 7.1 2407886 1880-06-19 2407880 1880-06-13 6 SVO
-163   2408110 1881-01-29 2408104 1881-01-23 6 GuL, 1918, 1.1
-162   2408332 1881-09-08 2408327 1881-09-03 5 AnHar, 1909, vol 55, p 95
-161   2408564 1882-04-28 2408551 1882-04-15 13 AnHar, 1909, vol 55, p 95
-160   2408777 1882-11-27 2408774 1882-11-24 3 AnHar, 1909, vol 55, p 95
-159   2409001 1883-07-09 2408997 1883-07-05 4 AnHar, 1909, vol 55, p 95
-158   2409227 1884-02-20 2409221 1884-02-14 6 GuL, 1918, 1.1
-157   2409455 1884-10-05 2409444 1884-09-24 11 AnHar, 1909, vol 55, p 95
-156 7.9 2409675 1885-05-13 2409668 1885-05-06 7 SVO
-149   2411235 1889-08-20 2411231 1889-08-16 4 AnHar, 1909, vol 55, p 95
-148   2411457 1890-03-30 2411455 1890-03-28 2 GuL, 1918, 1.1
-144   2412347 1892-09-05 2412348 1892-09-06 -1 GuL, 1918, 1.1
-143   2412556 1893-04-02 2412572 1893-04-18 -16 GuL, 1918, 1.1
-142   2412785 1893-11-17 2412795 1893-11-27 -10 GuL, 1918, 1.1
-141   2413010 1894-06-30 2413019 1894-07-09 -9 AnHar, 1909, vol 55, p 95
-139   2413459 1895-09-22 2413465 1895-09-28 -6 AnHar, 1909, vol 55, p 95
-138   2413686 1896-05-06 2413689 1896-05-09 -3 AnHar, 1909, vol 55, p 95
-136 7.9 2414127 1897-07-21 2414136 1897-07-30 -9 SVO
-135   2414345 1898-02-24 2414359 1898-03-10 -14 AnHar, 1909, vol 55, p 95
-133 7.2 2414804 1899-05-29 2414806 1899-05-31 -2 SVO
-131   2415243 1900-08-11 2415253 1900-08-21 -10 AnHar, 1909, vol 55, p 95
-130 6.6 2415461 1901-03-17 2415476 1901-04-01 -15 SVO
-128 7.8 2415926 1902-06-25 2415923 1902-06-22 3 SVO
-127   2416145 1903-01-30 2416146 1903-01-31 -1 AnHar, 1909, vol 55, p 95
-126   2416375 1903-09-17 2416370 1903-09-12 5 AnHar, 1909, vol 55, p 95
-125   2416590 1904-04-19 2416593 1904-04-22 -3 AnHar, 1909, vol 55, p 95
-124   2416804 1904-11-19 2416816 1904-12-01 -12 AnHar, 1909, vol 55, p 95
-123 6.6 2417036 1905-07-09 2417040 1905-07-13 -4 AAVSO
-122 7.6 2417262 1906-02-20 2417263 1906-02-21 -1 SVO
-121 6.9 2417487 1906-10-03 2417487 1906-10-03 0 SVO
-120 7.7 2417714 1907-05-18 2417710 1907-05-14 4 SVO
-119 7.2 2417933 1907-12-23 2417933 1907-12-23 0 SVO
-118 7.0 2418156 1908-08-02 2418157 1908-08-03 -1 SVO
-117 7.2 2418381 1909-03-15 2418380 1909-03-14 1 SVO
-116 7.5 2418606 1909-10-26 2418604 1909-10-24 2 SVO
-115 7.1 2418831 1910-06-08 2418827 1910-06-04 4 SVO
-114 6.7 2419038 1911-01-01 2419050 1911-01-13 -12 AAVSO
-113 7.7 2419266 1911-08-17 2419274 1911-08-25 -8 SVO
-112 7.5 2419486 1912-03-24 2419497 1912-04-04 -11 SVO
-111 7.1 2419708 1912-11-01 2419721 1912-11-14 -13 SVO
-110 7.7 2419931 1913-06-12 2419944 1913-06-25 -13 SVO
-109 7.2 2420151 1914-01-18 2420167 1914-02-03 -16 SVO
-108 7.6 2420375 1914-08-30 2420391 1914-09-15 -16 SVO
-107 6.8 2420597 1915-04-09 2420614 1915-04-26 -17 SVO
-106 6.9 2420816 1915-11-14 2420838 1915-12-06 -22 SVO
-105 7.1 2421041 1916-06-26 2421061 1916-07-16 -20 SVO
-104 7.1 2421272 1917-02-12 2421284 1917-02-24 -12 SVO
-103 6.9 2421481 1917-09-09 2421508 1917-10-06 -27 SVO
-102 7.5 2421709 1918-04-25 2421731 1918-05-17 -22 SVO
-101 7.3 2421933 1918-12-05 2421955 1918-12-27 -22 SVO
-100 7.4 2422155 1919-07-15 2422178 1919-08-07 -23 SVO
-99 6.9 2422379 1920-02-24 2422401 1920-03-17 -22 SVO
-98 7.4 2422601 1920-10-03 2422625 1920-10-27 -24 SVO
-97 6.9 2422823 1921-05-13 2422848 1921-06-07 -25 SVO
-96 7.2 2423047 1921-12-23 2423072 1922-01-17 -25 SVO
-95 7.0 2423275 1922-08-08 2423295 1922-08-28 -20 SVO
-94 7.1 2423490 1923-03-11 2423518 1923-04-08 -28 SVO
-93 7.0 2423710 1923-10-17 2423742 1923-11-18 -32 SVO
-92 7.1 2423939 1924-06-02 2423965 1924-06-28 -26 SVO
-91 7.7 2424162 1925-01-11 2424189 1925-02-07 -27 SVO
-90 6.9 2424382 1925-08-19 2424412 1925-09-18 -30 SVO
-89 7.7 2424612 1926-04-06 2424635 1926-04-29 -23 SVO
-88 7.2 2424841 1926-11-21 2424859 1926-12-09 -18 SVO
-87 7.1 2425061 1927-06-29 2425082 1927-07-20 -21 SVO
-86 7.1 2425286 1928-02-09 2425306 1928-02-29 -20 SVO
-85 6.9 2425506 1928-09-16 2425529 1928-10-09 -23 SVO
-84 7.5 2425737 1929-05-05 2425752 1929-05-20 -15 SVO
-83 7.5 2425966 1929-12-20 2425976 1929-12-30 -10 SVO
-82 7.5 2426195 1930-08-06 2426199 1930-08-10 -4 SVO
-81 7.4 2426426 1931-03-25 2426423 1931-03-22 3 SVO
-80 6.7 2426641 1931-10-26 2426646 1931-10-31 -5 SVO
-79 7.5 2426866 1932-06-07 2426869 1932-06-10 -3 SVO
-78 7.1 2427089 1933-01-16 2427093 1933-01-20 -4 SVO
-77 7.6 2427318 1933-09-02 2427316 1933-08-31 2 SVO
-76 7.4 2427545 1934-04-17 2427540 1934-04-12 5 SVO
-75 6.9 2427770 1934-11-28 2427763 1934-11-21 7 SVO
-74 7.5 2427992 1935-07-08 2427986 1935-07-02 6 SVO
-73 7.1 2428216 1936-02-17 2428210 1936-02-11 6 SVO
-72 7.7 2428449 1936-10-07 2428433 1936-09-21 16 SVO
-71 7.2 2428671 1937-05-17 2428657 1937-05-03 14 SVO
-70 7.2 2428891 1937-12-23 2428880 1937-12-12 11 SVO
-69 7.0 2429111 1938-07-31 2429103 1938-07-23 8 SVO
-68 7.1 2429336 1939-03-13 2429327 1939-03-04 9 SVO
-67 7.1 2429553 1939-10-16 2429550 1939-10-13 3 SVO
-66 7.3 2429780 1940-05-30 2429774 1940-05-24 6 SVO
-65 7.3 2430009 1941-01-14 2429997 1941-01-02 12 SVO
-64 7.0 2430229 1941-08-22 2430220 1941-08-13 9 SVO
-63 7.0 2430447 1942-03-28 2430444 1942-03-25 3 SVO
-62 7.2 2430671 1942-11-07 2430667 1942-11-03 4 AAVSO
-61 6.9 2430892 1943-06-16 2430891 1943-06-15 1 SVO
-60 7.7 2431120 1944-01-30 2431114 1944-01-24 6 SVO
-59 7.4 2431350 1944-09-16 2431337 1944-09-03 13 SVO
-58 6.9 2431567 1945-04-21 2431561 1945-04-15 6 SVO
-57 7.1 2431780 1945-11-20 2431784 1945-11-24 -4 SVO
-56 7.0 2432009 1946-07-07 2432008 1946-07-06 1 SVO
-55 7.2 2432228 1947-02-11 2432231 1947-02-14 -3 SVO
-54 7.0 2432442 1947-09-13 2432454 1947-09-25 -12 SVO
-53 7.3 2432672 1948-04-30 2432678 1948-05-06 -6 SVO
-52 7.4 2432893 1948-12-07 2432901 1948-12-15 -8 SVO
-51 7.2 2433116 1949-07-18 2433125 1949-07-27 -9 SVO
-50 7.3 2433340 1950-02-27 2433348 1950-03-07 -8 SVO
-49 6.8 2433566 1950-10-11 2433571 1950-10-16 -5 SVO
-48 7.5 2433795 1951-05-28 2433795 1951-05-28 0 SVO
-47 6.7 2434014 1952-01-02 2434018 1952-01-06 -4 SVO
-46 7.4 2434236 1952-08-11 2434242 1952-08-17 -6 SVO
-45 7.2 2434462 1953-03-25 2434465 1953-03-28 -3 SVO
-44 7.0 2434686 1953-11-04 2434688 1953-11-06 -2 SVO
-43 7.4 2434918 1954-06-24 2434912 1954-06-18 6 SVO
-42 7.2 2435150 1955-02-11 2435135 1955-01-27 15 SVO
-41 7.0 2435364 1955-09-13 2435359 1955-09-08 5 SVO
-40 6.9 2435584 1956-04-20 2435582 1956-04-18 2 SVO
-39 7.3 2435813 1956-12-05 2435805 1956-11-27 8 SVO
-38 7.2 2436035 1957-07-15 2436029 1957-07-09 6 SVO
-37 7.2 2436253 1958-02-18 2436252 1958-02-17 1 SVO
-36 7.0 2436477 1958-09-30 2436476 1958-09-29 1 SVO
-35 7.8 2436706 1959-05-17 2436699 1959-05-10 7 SVO
-34 7.4 2436933 1959-12-30 2436922 1959-12-19 11 SVO
-33 7.0 2437153 1960-08-06 2437146 1960-07-30 7 SVO
-32 7.0 2437374 1961-03-15 2437369 1961-03-10 5 SVO
-31 7.2 2437588 1961-10-15 2437593 1961-10-20 -5 SVO
-30 7.0 2437815 1962-05-30 2437816 1962-05-31 -1 SVO
-29 7.5 2438045 1963-01-15 2438039 1963-01-09 6 SVO
-28 7.4 2438272 1963-08-30 2438263 1963-08-21 9 SVO
-27 7.0 2438495 1964-04-09 2438486 1964-03-31 9 SVO
-26 7.2 2438715 1964-11-15 2438710 1964-11-10 5 SVO
-25 7.2 2438941 1965-06-29 2438933 1965-06-21 8 SVO
-24 7.5 2439171 1966-02-14 2439156 1966-01-30 15 SVO
-23 6.8 2439386 1966-09-17 2439380 1966-09-11 6 SVO
-22 7.1 2439609 1967-04-28 2439603 1967-04-22 6 SVO
-21 7.3 2439836 1967-12-11 2439827 1967-12-02 9 SVO
-20 6.9 2440062 1968-07-24 2440050 1968-07-12 12 SVO
-19 7.2 2440287 1969-03-06 2440273 1969-02-20 14 SVO
-18 7.3 2440515 1969-10-20 2440497 1969-10-02 18 SVO
-17 6.7 2440730 1970-05-23 2440720 1970-05-13 10 SVO
-16 7.5 2440957 1971-01-05 2440944 1970-12-23 13 SVO
-15 7.1 2441178 1971-08-14 2441167 1971-08-03 11 SVO
-14 8.1 2441408 1972-03-31 2441390 1972-03-13 18 SVO
-13 7.2 2441629 1972-11-07 2441614 1972-10-23 15 SVO
-12 7.5 2441854 1973-06-20 2441837 1973-06-03 17 SVO
-11 7.0 2442075 1974-01-27 2442061 1974-01-13 14 SVO
-10 7.4 2442297 1974-09-06 2442284 1974-08-24 13 SVO
-9 7.0 2442514 1975-04-11 2442507 1975-04-04 7 SVO
-8 7.6 2442739 1975-11-22 2442731 1975-11-14 8 SVO
-7 7.4 2442964 1976-07-04 2442954 1976-06-24 10 SVO
-6 7.6 2443189 1977-02-14 2443178 1977-02-03 11 SVO
-5 7.0 2443411 1977-09-24 2443401 1977-09-14 10 SVO
-4 7.3 2443629 1978-04-30 2443624 1978-04-25 5 SVO
-3 7.5 2443853 1978-12-10 2443848 1978-12-05 5 SVO
-2 7.1 2444073 1979-07-18 2444071 1979-07-16 2 SVO
-1 7.4 2444299 1980-02-29 2444295 1980-02-25 4 SVO
0 7.2 2444522 1980-10-09 2444518 1980-10-05 4 SVO
1 7.1 2444737 1981-05-12 2444741 1981-05-16 -4 SVO
2 7.0 2444965 1981-12-26 2444965 1981-12-26 0 SVO
3 6.9 2445186 1982-08-04 2445188 1982-08-06 -2 SVO
4 7.4 2445418 1983-03-24 2445412 1983-03-18 6 SVO
5 7.8 2445642 1983-11-03 2445635 1983-10-27 7 SVO
6 6.9 2445861 1984-06-09 2445858 1984-06-06 3 SVO
7 7.4 2446082 1985-01-16 2446082 1985-01-16 0 SVO
8 7.3 2446313 1985-09-04 2446305 1985-08-27 8 SVO
9 7.2 2446530 1986-04-09 2446529 1986-04-08 1 SVO
10 7.3 2446749 1986-11-14 2446752 1986-11-17 -3 SVO
11 7.3 2446973 1987-06-26 2446975 1987-06-28 -2 SVO
12 6.9 2447196 1988-02-04 2447199 1988-02-07 -3 SVO
13 7.8 2447425 1988-09-20 2447422 1988-09-17 3 SVO
14 7.0 2447642 1989-04-25 2447646 1989-04-29 -4 SVO
15 7.4 2447870 1989-12-09 2447869 1989-12-08 1 SVO
16 7.1 2448088 1990-07-15 2448092 1990-07-19 -4 SVO
17 7.4 2448313 1991-02-25 2448316 1991-02-28 -3 SVO
18 7.3 2448544 1991-10-14 2448539 1991-10-09 5 SVO
19 7.3 2448766 1992-05-23 2448763 1992-05-20 3 SVO
20 7.4 2448996 1993-01-08 2448986 1992-12-29 10 SVO
21 7.5 2449223 1993-08-23 2449209 1993-08-09 14 SVO
22 6.8 2449440 1994-03-28 2449433 1994-03-21 7 SVO
23 7.4 2449665 1994-11-08 2449656 1994-10-30 9 SVO
24 7.1 2449894 1995-06-25 2449880 1995-06-11 14 SVO
25 8.1 2450121 1996-02-07 2450103 1996-01-20 18 SVO
26 7.3 2450346 1996-09-19 2450326 1996-08-30 20 SVO
27 7.5 2450575 1997-05-06 2450550 1997-04-11 25 SVO
28 6.9 2450794 1997-12-11 2450773 1997-11-20 21 SVO
29 7.2 2451014 1998-07-19 2450997 1998-07-02 17 SVO
30 7.3 2451234 1999-02-24 2451220 1999-02-10 14 SVO
31 7.0 2451458 1999-10-06 2451443 1999-09-21 15 SVO
32 7.7 2451689 2000-05-24 2451667 2000-05-02 22 SVO
33 7.2 2451913 2001-01-03 2451890 2000-12-11 23 SVO
34 7.0 2452132 2001-08-10 2452114 2001-07-23 18 SVO
35 7.5 2452355 2002-03-21 2452337 2002-03-03 18 SVO
36 7.5 2452585 2002-11-06 2452560 2002-10-12 25 SVO
37 6.8 2452805 2003-06-14 2452784 2003-05-24 21 SVO
38 7.2 2453023 2004-01-18 2453007 2004-01-02 16 SVO
39 7.1 2453247 2004-08-29 2453231 2004-08-13 16 SVO
40 7.2 2453464 2005-04-03 2453454 2005-03-24 10 SVO
41 7.3 2453693 2005-11-18 2453677 2005-11-02 16 SVO
42 7.2 2453918 2006-07-01 2453901 2006-06-14 17 SVO
43 7.3 2454138 2007-02-06 2454124 2007-01-23 14 SVO
44 7.1 2454363 2007-09-19 2454348 2007-09-04 15 SVO
45 7.5 2454588 2008-05-01 2454571 2008-04-14 17 SVO
46 6.9 2454810 2008-12-09 2454794 2008-11-23 16 SVO
47 7.5 2455038 2009-07-25 2455018 2009-07-05 20 SVO
48 7.3 2455263 2010-03-07 2455241 2010-02-13 22 SVO
49 7.3 2455486 2010-10-16 2455465 2010-09-25 21 SVO
50 6.9 2455707 2011-05-25 2455688 2011-05-06 19 SVO
51 7.1 2455933 2012-01-06 2455911 2011-12-15 22 SVO
52 7.6 2456160 2012-08-20 2456135 2012-07-26 25 SVO
53 7.3 2456382 2013-03-30 2456358 2013-03-06 24 SVO
54 7.4 2456615 2013-11-18 2456582 2013-10-16 33 SVO
55 7.0 2456834 2014-06-25 2456805 2014-05-27 29 SVO
56 6.9 2457054 2015-01-31 2457028 2015-01-05 26 SVO
57 7.5 2457282 2015-09-16 2457252 2015-08-17 30 SVO
58 6.8 2457498 2016-04-19 2457475 2016-03-27 23 SVO
59 7.4 2457723 2016-11-30 2457699 2016-11-06 24 SVO
60 7.5 2457948 2017-07-13 2457922 2017-06-17 26 SVO
61 7.2 2458171 2018-02-21 2458145 2018-01-26 26 SVO
62 7.6 2458400 2018-10-08 2458369 2018-09-07 31 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.