Maxima for R Per
Period: 209.89, Epoch: 2445339
Back to main page  Mean light curve  Period diagram

E Mag O (JD) O (dat) C (JD) C (Dat) O-C Source
-211   2401058 1861-10-09 2401052 1861-10-03 6 MNRAS, 1916, vol 76, p 469, AnHar, 1909, vol 55, p 95
-209   2401465 1862-11-20 2401472 1862-11-27 -7 MNRAS, 1916, vol 76, p 469, AnHar, 1909, vol 55, p 95
-207   2401882 1864-01-11 2401892 1864-01-21 -10 AnHar, 1909, vol 55, p 95, MNRAS, 1916, vol 76, p 469
-206   2402104 1864-08-20 2402102 1864-08-18 2 AnHar, 1909, vol 55, p 95
-205 9.3 2402306 1865-03-10 2402312 1865-03-16 -6 SVO
-204   2402511 1865-10-01 2402521 1865-10-11 -10 MNRAS, 1916, vol 76, p 469, AnHar, 1909, vol 55, p 95
-203 8.2 2402714 1866-04-22 2402731 1866-05-09 -17 SVO
-202 9.2 2402911 1866-11-05 2402941 1866-12-05 -30 SVO
-201   2403124 1867-06-06 2403151 1867-07-03 -27 MNRAS, 1916, vol 76, p 469
-200   2403333 1868-01-01 2403361 1868-01-29 -28 MNRAS, 1916, vol 76, p 469
-199   2403551 1868-08-06 2403571 1868-08-26 -20 VeBam, 1931, vol 3, p 1
-198 8.9 2403757 1869-02-28 2403781 1869-03-24 -24 SVO
-197   2403971 1869-09-30 2403991 1869-10-20 -20 VeBam, 1931, vol 3, p 1, AnHar, 1909, vol 55, p 95
-196   2404170 1870-04-17 2404201 1870-05-18 -31 VeBam, 1931, vol 3, p 1
-195 8.8 2404384 1870-11-17 2404410 1870-12-13 -26 SVO
-193 8.4 2404810 1872-01-17 2404830 1872-02-06 -20 SVO
-192   2405023 1872-08-17 2405040 1872-09-03 -17 AnHar, 1909, vol 55, p 95
-191   2405235 1873-03-17 2405250 1873-04-01 -15 AnHar, 1909, vol 55, p 95
-190   2405441 1873-10-09 2405460 1873-10-28 -19 AnHar, 1909, vol 55, p 95
-189 8.9 2405661 1874-05-17 2405670 1874-05-26 -9 SVO
-188 8.6 2405868 1874-12-10 2405880 1874-12-22 -12 SVO
-185   2406511 1876-09-13 2406509 1876-09-11 2 GuL, 1918, 1.1
-183   2406922 1877-10-29 2406929 1877-11-05 -7 GuL, 1918, 1.1
-181   2407346 1878-12-27 2407349 1878-12-30 -3 MNRAS, 1916, vol 76, p 469
-180   2407588 1879-08-26 2407559 1879-07-28 29 GuL, 1918, 1.1
-179   2407776 1880-03-01 2407769 1880-02-23 7 AnHar, 1909, vol 55, p 95, GuL, 1918, 1.1
-178   2407986 1880-09-27 2407979 1880-09-20 7 MNRAS, 1916, vol 76, p 469, AnHar, 1909, vol 55, p 95
-177   2408197 1881-04-26 2408188 1881-04-17 9 GuL, 1918, 1.1
-176   2408414 1881-11-29 2408398 1881-11-13 16 AnHar, 1909, vol 55, p 95
-175   2408625 1882-06-28 2408608 1882-06-11 17 GuL, 1918, 1.1
-174   2408831 1883-01-20 2408818 1883-01-07 13 AnHar, 1909, vol 55, p 95
-173   2409049 1883-08-26 2409028 1883-08-05 21 GuL, 1918, 1.1, AnHar, 1909, vol 55, p 95
-172   2409241 1884-03-05 2409238 1884-03-02 3 AnHar, 1909, vol 55, p 95
-171 8.5 2409458 1884-10-08 2409448 1884-09-28 10 SVO
-169   2409880 1885-12-04 2409868 1885-11-22 12 AN, 1910, vol 186, p 45
-167   2410291 1887-01-19 2410287 1887-01-15 4 AnHar, 1909, vol 55, p 95, MNRAS, 1916, vol 76, p 469
-164   2410946 1888-11-04 2410917 1888-10-06 29 AN, 1910, vol 186, p 45, AnHar, 1909, vol 55, p 95
-162   2411345 1889-12-08 2411337 1889-11-30 8 AN, 1910, vol 186, p 45
-160   2411755 1891-01-22 2411757 1891-01-24 -2 AN, 1910, vol 186, p 45
-159   2411975 1891-08-30 2411966 1891-08-21 9 AnHar, 1909, vol 55, p 95
-158   2412188 1892-03-30 2412176 1892-03-18 12 AN, 1910, vol 186, p 45, AnHar, 1909, vol 55, p 95
-157   2412381 1892-10-09 2412386 1892-10-14 -5 AN, 1910, vol 186, p 45, GuL, 1918, 1.1
-156   2412590 1893-05-06 2412596 1893-05-12 -6 GuL, 1918, 1.1
-155   2412803 1893-12-05 2412806 1893-12-08 -3 GuL, 1918, 1.1, AnHar, 1909, vol 55, p 95
-153   2413250 1895-02-25 2413226 1895-02-01 24 AnHar, 1909, vol 55, p 95, GuL, 1918, 1.1
-151   2413625 1896-03-06 2413646 1896-03-27 -21 GuL, 1918, 1.1
-150   2413854 1896-10-21 2413856 1896-10-23 -2 AnHar, 1909, vol 55, p 95
-148   2414284 1897-12-25 2414275 1897-12-16 9 AnHar, 1909, vol 55, p 95
-146   2414700 1899-02-14 2414695 1899-02-09 5 SVO
-144   2415119 1900-04-09 2415115 1900-04-05 4 AnHar, 1909, vol 55, p 95
-143   2415340 1900-11-16 2415325 1900-11-01 15 SVO
-141   2415770 1902-01-20 2415745 1901-12-26 25 AnHar, 1952, vol 118
-140   2415975 1902-08-13 2415954 1902-07-23 21 SVO
-139   2416180 1903-03-06 2416164 1903-02-18 16 AnHar, 1952, vol 118
-138   2416401 1903-10-13 2416374 1903-09-16 27 AAVSO
-137   2416612 1904-05-11 2416584 1904-04-13 28 AAVSO
-136 8.4 2416806 1904-11-21 2416794 1904-11-09 12 SVO
-134 8.4 2417225 1906-01-14 2417214 1906-01-03 11 SVO
-133   2417431 1906-08-08 2417424 1906-08-01 7 AAVSO
-132 8.9 2417643 1907-03-08 2417634 1907-02-27 9 AAVSO
-131 8.7 2417866 1907-10-17 2417843 1907-09-24 23 AAVSO
-130 8.6 2418073 1908-05-11 2418053 1908-04-21 20 AAVSO
-129 8.6 2418268 1908-11-22 2418263 1908-11-17 5 SVO
-128   2418494 1909-07-06 2418473 1909-06-15 21 AAVSO
-127 8.6 2418692 1910-01-20 2418683 1910-01-11 9 SVO
-126   2418906 1910-08-22 2418893 1910-08-09 13 AAVSO
-125 8.3 2419100 1911-03-04 2419103 1911-03-07 -3 AAVSO
-124 8.6 2419312 1911-10-02 2419313 1911-10-03 -1 AAVSO
-123   2419535 1912-05-12 2419523 1912-04-30 12 AAVSO
-122 8.7 2419735 1912-11-28 2419732 1912-11-25 3 SVO
-120 8.4 2420152 1914-01-19 2420152 1914-01-19 0 SVO
-119   2420362 1914-08-17 2420362 1914-08-17 0 AAVSO
-118 8.5 2420570 1915-03-13 2420572 1915-03-15 -2 AAVSO
-117 8.5 2420784 1915-10-13 2420782 1915-10-11 2 SVO
-116   2420987 1916-05-03 2420992 1916-05-08 -5 AAVSO
-115 8.7 2421208 1916-12-10 2421202 1916-12-04 6 SVO
-114 8.9 2421413 1917-07-03 2421412 1917-07-02 1 AAVSO
-113 8.3 2421619 1918-01-25 2421621 1918-01-27 -2 SVO
-112 9.0 2421845 1918-09-08 2421831 1918-08-25 14 SVO
-111 8.6 2422068 1919-04-19 2422041 1919-03-23 27 AAVSO
-110 8.3 2422264 1919-11-01 2422251 1919-10-19 13 SVO
-109   2422476 1920-05-31 2422461 1920-05-16 15 AAVSO
-108 8.3 2422683 1920-12-24 2422671 1920-12-12 12 SVO
-107 8.8 2422894 1921-07-23 2422881 1921-07-10 13 AAVSO
-106 8.7 2423108 1922-02-22 2423091 1922-02-05 17 SVO
-105 8.4 2423307 1922-09-09 2423301 1922-09-03 6 SVO
-104 9.0 2423530 1923-04-20 2423510 1923-03-31 20 SVO
-103 9.3 2423741 1923-11-17 2423720 1923-10-27 21 SVO
-102 8.7 2423940 1924-06-03 2423930 1924-05-24 10 SVO
-101 8.9 2424149 1924-12-29 2424140 1924-12-20 9 SVO
-100 8.5 2424353 1925-07-21 2424350 1925-07-18 3 SVO
-99 8.9 2424562 1926-02-15 2424560 1926-02-13 2 SVO
-98 8.5 2424767 1926-09-08 2424770 1926-09-11 -3 SVO
-97 9.1 2424972 1927-04-01 2424980 1927-04-09 -8 SVO
-96 8.5 2425186 1927-11-01 2425190 1927-11-05 -4 SVO
-95 8.9 2425399 1928-06-01 2425399 1928-06-01 0 SVO
-94 8.5 2425599 1928-12-18 2425609 1928-12-28 -10 SVO
-93 8.9 2425809 1929-07-16 2425819 1929-07-26 -10 AAVSO
-92 8.7 2426017 1930-02-09 2426029 1930-02-21 -12 SVO
-91 9.2 2426229 1930-09-09 2426239 1930-09-19 -10 SVO
-90 9.0 2426449 1931-04-17 2426449 1931-04-17 0 AAVSO
-89 8.4 2426649 1931-11-03 2426659 1931-11-13 -10 SVO
-88 8.7 2426855 1932-05-27 2426869 1932-06-10 -14 SVO
-87 8.5 2427055 1932-12-13 2427079 1933-01-06 -24 SVO
-86 9.2 2427273 1933-07-19 2427288 1933-08-03 -15 SVO
-85 8.6 2427489 1934-02-20 2427498 1934-03-01 -9 SVO
-84 9.2 2427702 1934-09-21 2427708 1934-09-27 -6 SVO
-83 8.3 2427916 1935-04-23 2427918 1935-04-25 -2 AAVSO
-82 9.0 2428123 1935-11-16 2428128 1935-11-21 -5 SVO
-81   2428322 1936-06-02 2428338 1936-06-18 -16 AAVSO
-80 8.5 2428536 1937-01-02 2428548 1937-01-14 -12 SVO
-79 8.8 2428746 1937-07-31 2428758 1937-08-12 -12 SVO
-78 9.7 2428972 1938-03-14 2428968 1938-03-10 4 SVO
-77 8.6 2429172 1938-09-30 2429177 1938-10-05 -5 SVO
-76   2429388 1939-05-04 2429387 1939-05-03 1 AAVSO
-75 9.4 2429605 1939-12-07 2429597 1939-11-29 8 SVO
-74 9.5 2429834 1940-07-23 2429807 1940-06-26 27 SVO
-73 9.0 2430031 1941-02-05 2430017 1941-01-22 14 SVO
-72 8.9 2430247 1941-09-09 2430227 1941-08-20 20 SVO
-71 8.8 2430452 1942-04-02 2430437 1942-03-18 15 AAVSO
-70 9.3 2430669 1942-11-05 2430647 1942-10-14 22 SVO
-69   2430887 1943-06-11 2430857 1943-05-12 30 AAVSO
-68 8.6 2431088 1943-12-29 2431066 1943-12-07 22 SVO
-67 9.1 2431306 1944-08-03 2431276 1944-07-04 30 AAVSO
-66 8.8 2431519 1945-03-04 2431486 1945-01-30 33 SVO
-65 8.2 2431717 1945-09-18 2431696 1945-08-28 21 SVO
-64 8.4 2431929 1946-04-18 2431906 1946-03-26 23 AAVSO
-63 9.6 2432146 1946-11-21 2432116 1946-10-22 30 SVO
-62 8.8 2432356 1947-06-19 2432326 1947-05-20 30 AAVSO
-61 8.6 2432558 1948-01-07 2432536 1947-12-16 22 SVO
-60 8.8 2432762 1948-07-29 2432746 1948-07-13 16 AAVSO
-59 8.6 2432972 1949-02-24 2432955 1949-02-07 17 SVO
-58 8.6 2433176 1949-09-16 2433165 1949-09-05 11 SVO
-57 8.7 2433381 1950-04-09 2433375 1950-04-03 6 AAVSO
-56 9.5 2433611 1950-11-25 2433585 1950-10-30 26 SVO
-55   2433814 1951-06-16 2433795 1951-05-28 19 AAVSO
-54 9.1 2434031 1952-01-19 2434005 1951-12-24 26 SVO
-53 8.8 2434236 1952-08-11 2434215 1952-07-21 21 AAVSO
-52 8.8 2434448 1953-03-11 2434425 1953-02-16 23 AAVSO
-51 8.7 2434647 1953-09-26 2434635 1953-09-14 12 SVO
-50   2434868 1954-05-05 2434845 1954-04-12 23 AAVSO
-49 8.9 2435072 1954-11-25 2435054 1954-11-07 18 SVO
-48   2435280 1955-06-21 2435264 1955-06-05 16 AAVSO
-47 8.7 2435484 1956-01-11 2435474 1956-01-01 10 SVO
-46 8.6 2435696 1956-08-10 2435684 1956-07-29 12 AAVSO
-45 9.3 2435907 1957-03-09 2435894 1957-02-24 13 SVO
-44 8.9 2436122 1957-10-10 2436104 1957-09-22 18 SVO
-43   2436329 1958-05-05 2436314 1958-04-20 15 AAVSO
-42 9.0 2436545 1958-12-07 2436524 1958-11-16 21 SVO
-41   2436754 1959-07-04 2436734 1959-06-14 20 AAVSO
-40 8.8 2436963 1960-01-29 2436943 1960-01-09 20 SVO
-39 8.5 2437176 1960-08-29 2437153 1960-08-06 23 SVO
-38 9.3 2437390 1961-03-31 2437363 1961-03-04 27 SVO
-37 8.8 2437598 1961-10-25 2437573 1961-09-30 25 SVO
-36   2437812 1962-05-27 2437783 1962-04-28 29 AAVSO
-35 8.8 2438018 1962-12-19 2437993 1962-11-24 25 SVO
-34 8.7 2438221 1963-07-10 2438203 1963-06-22 18 AAVSO
-33 9.2 2438437 1964-02-11 2438413 1964-01-18 24 SVO
-32 8.8 2438648 1964-09-09 2438623 1964-08-15 25 SVO
-31 9.0 2438867 1965-04-16 2438832 1965-03-12 35 SVO
-30 8.9 2439068 1965-11-03 2439042 1965-10-08 26 SVO
-29 8.0 2439269 1966-05-23 2439252 1966-05-06 17 SVO
-28 9.1 2439489 1966-12-29 2439462 1966-12-02 27 SVO
-27 8.9 2439696 1967-07-24 2439672 1967-06-30 24 AAVSO
-26 8.8 2439907 1968-02-20 2439882 1968-01-26 25 SVO
-25 8.9 2440115 1968-09-15 2440092 1968-08-23 23 SVO
-24 8.7 2440326 1969-04-14 2440302 1969-03-21 24 AAVSO
-23 9.2 2440537 1969-11-11 2440512 1969-10-17 25 SVO
-22   2440749 1970-06-11 2440721 1970-05-14 28 AAVSO
-21 9.1 2440955 1971-01-03 2440931 1970-12-10 24 SVO
-20 8.8 2441159 1971-07-26 2441141 1971-07-08 18 AAVSO
-19 8.6 2441365 1972-02-17 2441351 1972-02-03 14 SVO
-18 9.1 2441572 1972-09-11 2441561 1972-08-31 11 SVO
-17 8.9 2441789 1973-04-16 2441771 1973-03-29 18 SVO
-16 8.5 2441992 1973-11-05 2441981 1973-10-25 11 SVO
-15   2442209 1974-06-10 2442191 1974-05-23 18 AAVSO
-14 8.9 2442417 1975-01-04 2442401 1974-12-19 16 SVO
-13 8.9 2442626 1975-08-01 2442610 1975-07-16 16 AAVSO
-12 8.5 2442827 1976-02-18 2442820 1976-02-11 7 SVO
-11 9.4 2443043 1976-09-21 2443030 1976-09-08 13 SVO
-10 9.2 2443256 1977-04-22 2443240 1977-04-06 16 AAVSO
-9 8.5 2443457 1977-11-09 2443450 1977-11-02 7 SVO
-8 10.3 2443664 1978-06-04 2443660 1978-05-31 4 AAVSO
-7 8.9 2443868 1978-12-25 2443870 1978-12-27 -2 SVO
-6 9.0 2444086 1979-07-31 2444080 1979-07-25 6 SVO
-5 8.6 2444288 1980-02-18 2444290 1980-02-20 -2 SVO
-4 9.1 2444495 1980-09-12 2444499 1980-09-16 -4 SVO
-3 8.7 2444700 1981-04-05 2444709 1981-04-14 -9 AAVSO
-2 9.2 2444915 1981-11-06 2444919 1981-11-10 -4 SVO
-1 10.3 2445129 1982-06-08 2445129 1982-06-08 0 AAVSO
0 9.3 2445341 1983-01-06 2445339 1983-01-04 2 SVO
1 8.9 2445549 1983-08-02 2445549 1983-08-02 0 AAVSO
2 8.6 2445767 1984-03-07 2445759 1984-02-28 8 SVO
3 9.1 2445977 1984-10-03 2445969 1984-09-25 8 SVO
4 9.1 2446189 1985-05-03 2446179 1985-04-23 10 AAVSO
5 9.0 2446396 1985-11-26 2446388 1985-11-18 8 SVO
6 9.3 2446608 1986-06-26 2446598 1986-06-16 10 AAVSO
7 9.1 2446818 1987-01-22 2446808 1987-01-12 10 SVO
8 8.5 2447026 1987-08-18 2447018 1987-08-10 8 SVO
9   2447248 1988-03-27 2447228 1988-03-07 20 AAVSO
10 9.0 2447457 1988-10-22 2447438 1988-10-03 19 SVO
11   2447660 1989-05-13 2447648 1989-05-01 12 AAVSO
12 9.8 2447879 1989-12-18 2447858 1989-11-27 21 SVO
13   2448088 1990-07-15 2448068 1990-06-25 20 AAVSO
14 9.1 2448298 1991-02-10 2448277 1991-01-20 21 SVO
15 8.8 2448500 1991-08-31 2448487 1991-08-18 13 SVO
16   2448729 1992-04-16 2448697 1992-03-15 32 AAVSO
17 8.7 2448930 1992-11-03 2448907 1992-10-11 23 SVO
18   2449143 1993-06-04 2449117 1993-05-09 26 AAVSO
19 9.6 2449350 1993-12-28 2449327 1993-12-05 23 SVO
20 9.3 2449565 1994-07-31 2449537 1994-07-03 28 SVO
21 8.6 2449772 1995-02-23 2449747 1995-01-29 25 SVO
22 8.6 2449982 1995-09-21 2449957 1995-08-27 25 SVO
23   2450188 1996-04-14 2450166 1996-03-23 22 AAVSO
24 9.4 2450395 1996-11-07 2450376 1996-10-19 19 SVO
25 9.0 2450607 1997-06-07 2450586 1997-05-17 21 SVO
26 8.7 2450819 1998-01-05 2450796 1997-12-13 23 SVO
27   2451025 1998-07-30 2451006 1998-07-11 19 AAVSO
28 8.7 2451230 1999-02-20 2451216 1999-02-06 14 SVO
29 8.6 2451438 1999-09-16 2451426 1999-09-04 12 SVO
30   2451649 2000-04-14 2451636 2000-04-01 13 AAVSO
31 8.7 2451857 2000-11-08 2451846 2000-10-28 11 SVO
32   2452078 2001-06-17 2452055 2001-05-25 23 AAVSO
33 8.6 2452279 2002-01-04 2452265 2001-12-21 14 SVO
34   2452489 2002-08-02 2452475 2002-07-19 14 AAVSO
35 10.0 2452702 2003-03-03 2452685 2003-02-14 17 SVO
36 9.1 2452909 2003-09-26 2452895 2003-09-12 14 SVO
37   2453121 2004-04-25 2453105 2004-04-09 16 AAVSO
38 8.7 2453338 2004-11-28 2453315 2004-11-05 23 SVO
39   2453544 2005-06-22 2453525 2005-06-03 19 AAVSO
40 9.0 2453763 2006-01-27 2453735 2005-12-30 28 SVO
41 8.9 2453977 2006-08-29 2453944 2006-07-27 33 SVO
42   2454179 2007-03-19 2454154 2007-02-22 25 AAVSO
43 8.5 2454386 2007-10-12 2454364 2007-09-20 22 SVO
44   2454605 2008-05-18 2454574 2008-04-17 31 AAVSO
45 9.5 2454820 2008-12-19 2454784 2008-11-13 36 SVO
46 9.2 2455029 2009-07-16 2454994 2009-06-11 35 AAVSO
47 8.9 2455237 2010-02-09 2455204 2010-01-07 33 SVO
48 9.2 2455447 2010-09-07 2455414 2010-08-05 33 SVO
49 8.8 2455654 2011-04-02 2455624 2011-03-03 30 AAVSO
50 8.8 2455867 2011-11-01 2455834 2011-09-29 33 SVO
51   2456081 2012-06-02 2456043 2012-04-25 38 AAVSO
52 8.6 2456285 2012-12-23 2456253 2012-11-21 32 SVO
53 8.9 2456495 2013-07-21 2456463 2013-06-19 32 AAVSO
54 8.8 2456717 2014-02-28 2456673 2014-01-15 44 AAVSO
55 9.4 2456924 2014-09-23 2456883 2014-08-13 41 SVO
56 8.7 2457133 2015-04-20 2457093 2015-03-11 40 SVO
57 8.9 2457342 2015-11-15 2457303 2015-10-07 39 SVO
58   2457549 2016-06-09 2457513 2016-05-04 36 AAVSO
59 8.4 2457753 2016-12-30 2457723 2016-11-30 30 SVO
60 9.4 2457971 2017-08-05 2457932 2017-06-27 39 SVO
61   2458185 2018-03-07 2458142 2018-01-23 43 SVO
62 8.4 2458378 2018-09-16 2458352 2018-08-21 26 SVO
63   2458600 2019-04-26 2458562 2019-03-19 38 SVO
64 8.9 2458812 2019-11-24 2458772 2019-10-15 40 SVO
65   2459020 2020-06-19 2458982 2020-05-12 38 SVO
66 8.5 2459217 2021-01-02 2459192 2020-12-08 25 SVO
67 9.1 2459435 2021-08-08 2459402 2021-07-06 33 SVO
68 8.8 2459637 2022-02-26 2459612 2022-02-01 25 SVO
69 8.8 2459850 2022-09-27 2459821 2022-08-29 29 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.