Maxima for R Del
Period: 283, Epoch: 2454624
Back to main page  Mean light curve  Period diagram

E Mag O (JD) O (dat) C (JD) C (Dat) O-C Source
-185   2401877 1864-01-06 2402269 1865-02-01 -392 AnHar, 1937, vol 105, p 459
-183 8.7 2402475 1865-08-26 2402835 1866-08-21 -360 SVO
-182 8.1 2402752 1866-05-30 2403118 1867-05-31 -366 SVO
-180   2403325 1867-12-24 2403684 1868-12-17 -359 MNRAS, 1914, vol 74, p 568
-179   2403608 1868-10-02 2403967 1869-09-26 -359 VeBam, 1931, vol 3, p 1
-178 8.1 2403897 1869-07-18 2404250 1870-07-06 -353 SVO
-177   2404189 1870-05-06 2404533 1871-04-15 -344 VeBam, 1931, vol 3, p 1
-176   2404461 1871-02-02 2404816 1872-01-23 -355 VeBam, 1931, vol 3, p 1
-175   2404753 1871-11-21 2405099 1872-11-01 -346 AnHar, 1909, vol 55, p 95, VeBam, 1931, vol 3, p 1
-174 7.8 2405031 1872-08-25 2405382 1873-08-11 -351 SVO
-169   2406462 1876-07-26 2406797 1877-06-26 -335 GuL, 1920, 1.2
-168   2406750 1877-05-10 2407080 1878-04-05 -330 GuL, 1920, 1.2
-166   2407324 1878-12-05 2407646 1879-10-23 -322 GuL, 1920, 1.2, MNRAS, 1914, vol 74, p 568
-165   2407615 1879-09-22 2407929 1880-08-01 -314 MNRAS, 1914, vol 74, p 568, GuL, 1920, 1.2
-164   2407892 1880-06-25 2408212 1881-05-11 -320 GuL, 1920, 1.2, AnHar, 1909, vol 55, p 95
-163   2408193 1881-04-22 2408495 1882-02-18 -302 GuL, 1920, 1.2, AnHar, 1909, vol 55, p 95
-162   2408478 1882-02-01 2408778 1882-11-28 -300 GuL, 1920, 1.2
-160   2409054 1883-08-31 2409344 1884-06-16 -290 GuL, 1920, 1.2, AnHar, 1909, vol 55, p 95
-159   2409323 1884-05-26 2409627 1885-03-26 -304 GuL, 1920, 1.2
-156   2410191 1886-10-11 2410476 1887-07-23 -285 GuL, 1920, 1.2
-155   2410474 1887-07-21 2410759 1888-05-01 -285 GuL, 1920, 1.2, AnHar, 1909, vol 55, p 95
-151   2411617 1890-09-06 2411891 1891-06-07 -274 GuL, 1920, 1.2
-147   2412741 1893-10-04 2413023 1894-07-13 -282 AnHar, 1909, vol 55, p 95
-146   2413030 1894-07-20 2413306 1895-04-22 -276 AnHar, 1909, vol 55, p 95
-143   2413858 1896-10-25 2414155 1897-08-18 -297 AnHar, 1909, vol 55, p 95
-142   2414147 1897-08-10 2414438 1898-05-28 -291 AnHar, 1909, vol 55, p 95
-141   2414460 1898-06-19 2414721 1899-03-07 -261 AnHar, 1909, vol 55, p 95
-138   2415268 1900-09-05 2415570 1901-07-04 -302 GuL, 1920, 1.2, AnHar, 1909, vol 55, p 95
-137   2415530 1901-05-25 2415853 1902-04-13 -323 SVO
-136   2415820 1902-03-11 2416136 1903-01-21 -316 SVO
-135   2416113 1902-12-29 2416419 1903-10-31 -306 AnHar, 1909, vol 55, p 95
-134   2416414 1903-10-26 2416702 1904-08-09 -288 AnHar, 1909, vol 55, p 95
-133   2416679 1904-07-17 2416985 1905-05-19 -306 AnHar, 1909, vol 55, p 95
-132   2416965 1905-04-29 2417268 1906-02-26 -303 SVO
-131   2417249 1906-02-07 2417551 1906-12-06 -302 AAVSO
-130 8.4 2417528 1906-11-13 2417834 1907-09-15 -306 AAVSO
-129 8.2 2417802 1907-08-14 2418117 1908-06-24 -315 SVO
-128   2418085 1908-05-23 2418400 1909-04-03 -315 SVO
-127   2418373 1909-03-07 2418683 1910-01-11 -310 AAVSO
-126   2418655 1909-12-14 2418966 1910-10-21 -311 SVO
-125 8.7 2418946 1910-10-01 2419249 1911-07-31 -303 SVO
-124 8.1 2419229 1911-07-11 2419532 1912-05-09 -303 SVO
-123   2419520 1912-04-27 2419815 1913-02-16 -295 SVO
-122 8.4 2419822 1913-02-23 2420098 1913-11-26 -276 AAVSO
-121 8.4 2420090 1913-11-18 2420381 1914-09-05 -291 AAVSO
-120 8.4 2420385 1914-09-09 2420664 1915-06-15 -279 SVO
-119   2420664 1915-06-15 2420947 1916-03-24 -283 SVO
-118   2420956 1916-04-02 2421230 1917-01-01 -274 AAVSO
-117   2421248 1917-01-19 2421513 1917-10-11 -265 AAVSO
-116 8.3 2421529 1917-10-27 2421796 1918-07-21 -267 SVO
-115 8.7 2421818 1918-08-12 2422079 1919-04-30 -261 SVO
-114 8.2 2422109 1919-05-30 2422362 1920-02-07 -253 AAVSO
-113 8.5 2422394 1920-03-10 2422645 1920-11-16 -251 AAVSO
-112 8.6 2422673 1920-12-14 2422928 1921-08-26 -255 AAVSO
-111 8.8 2422958 1921-09-25 2423211 1922-06-05 -253 SVO
-110 7.9 2423235 1922-06-29 2423494 1923-03-15 -259 SVO
-109 8.6 2423523 1923-04-13 2423777 1923-12-23 -254 AAVSO
-108 8.0 2423801 1924-01-16 2424060 1924-10-01 -259 SVO
-107 8.8 2424089 1924-10-30 2424343 1925-07-11 -254 SVO
-106 8.9 2424377 1925-08-14 2424626 1926-04-20 -249 SVO
-105 7.9 2424650 1926-05-14 2424909 1927-01-28 -259 SVO
-104 8.2 2424940 1927-02-28 2425192 1927-11-07 -252 SVO
-103 8.3 2425225 1927-12-10 2425475 1928-08-16 -250 SVO
-102 8.1 2425508 1928-09-18 2425758 1929-05-26 -250 SVO
-101 8.0 2425790 1929-06-27 2426041 1930-03-05 -251 SVO
-100 8.2 2426075 1930-04-08 2426324 1930-12-13 -249 AAVSO
-99 8.1 2426361 1931-01-19 2426607 1931-09-22 -246 SVO
-98 8.6 2426650 1931-11-04 2426890 1932-07-01 -240 SVO
-97 8.6 2426937 1932-08-17 2427173 1933-04-10 -236 SVO
-96 8.5 2427222 1933-05-29 2427456 1934-01-18 -234 SVO
-95 8.4 2427504 1934-03-07 2427739 1934-10-28 -235 AAVSO
-94 8.2 2427781 1934-12-09 2428022 1935-08-07 -241 SVO
-93 8.1 2428065 1935-09-19 2428305 1936-05-16 -240 SVO
-92 8.3 2428351 1936-07-01 2428588 1937-02-23 -237 SVO
-91 8.6 2428648 1937-04-24 2428871 1937-12-03 -223 SVO
-90   2428945 1938-02-15 2429154 1938-09-12 -209 AAVSO
-89 7.7 2429218 1938-11-15 2429437 1939-06-22 -219 SVO
-88 8.7 2429505 1939-08-29 2429720 1940-03-31 -215 SVO
-87   2429787 1940-06-06 2430003 1941-01-08 -216 SVO
-86   2430067 1941-03-13 2430286 1941-10-18 -219 AAVSO
-85 8.0 2430354 1941-12-25 2430569 1942-07-28 -215 SVO
-84 8.6 2430642 1942-10-09 2430852 1943-05-07 -210 SVO
-83 8.8 2430933 1943-07-27 2431135 1944-02-14 -202 SVO
-82   2431217 1944-05-06 2431418 1944-11-23 -201 SVO
-81   2431514 1945-02-27 2431701 1945-09-02 -187 AAVSO
-80 8.3 2431780 1945-11-20 2431984 1946-06-12 -204 SVO
-79 8.5 2432075 1946-09-11 2432267 1947-03-22 -192 SVO
-78 8.3 2432358 1947-06-21 2432550 1947-12-30 -192 SVO
-77   2432640 1948-03-29 2432833 1948-10-08 -193 SVO
-76 8.2 2432920 1949-01-03 2433116 1949-07-18 -196 AAVSO
-75 8.0 2433197 1949-10-07 2433399 1950-04-27 -202 SVO
-74 8.6 2433491 1950-07-28 2433682 1951-02-04 -191 SVO
-73 8.5 2433774 1951-05-07 2433965 1951-11-14 -191 AAVSO
-72 8.4 2434058 1952-02-15 2434248 1952-08-23 -190 SVO
-71 7.9 2434343 1952-11-26 2434531 1953-06-02 -188 SVO
-70 9.4 2434636 1953-09-15 2434814 1954-03-12 -178 SVO
-69 8.8 2434913 1954-06-19 2435097 1954-12-20 -184 AAVSO
-68   2435196 1955-03-29 2435380 1955-09-29 -184 AAVSO
-67 8.7 2435484 1956-01-11 2435663 1956-07-08 -179 AAVSO
-66 8.4 2435774 1956-10-27 2435946 1957-04-17 -172 SVO
-65 7.8 2436060 1957-08-09 2436229 1958-01-25 -169 SVO
-64 8.2 2436337 1958-05-13 2436512 1958-11-04 -175 AAVSO
-63   2436629 1959-03-01 2436795 1959-08-14 -166 AAVSO
-62 9.0 2436932 1959-12-29 2437078 1960-05-23 -146 AAVSO
-61 8.5 2437224 1960-10-16 2437361 1961-03-02 -137 SVO
-60 8.5 2437495 1961-07-14 2437644 1961-12-10 -149 SVO
-59 8.6 2437785 1962-04-30 2437927 1962-09-19 -142 AAVSO
-58   2438083 1963-02-22 2438210 1963-06-29 -127 AAVSO
-57 9.3 2438371 1963-12-07 2438493 1964-04-07 -122 AAVSO
-56 8.3 2438652 1964-09-13 2438776 1965-01-15 -124 SVO
-55 8.4 2438929 1965-06-17 2439059 1965-10-25 -130 SVO
-54 8.3 2439216 1966-03-31 2439342 1966-08-04 -126 AAVSO
-53 8.4 2439497 1967-01-06 2439625 1967-05-14 -128 AAVSO
-52 8.0 2439776 1967-10-12 2439908 1968-02-21 -132 SVO
-51 8.7 2440064 1968-07-26 2440191 1968-11-30 -127 SVO
-50 8.2 2440347 1969-05-05 2440474 1969-09-09 -127 SVO
-49 8.3 2440640 1970-02-22 2440757 1970-06-19 -117 SVO
-48 8.7 2440934 1970-12-13 2441040 1971-03-29 -106 SVO
-47 8.3 2441219 1971-09-24 2441323 1972-01-06 -104 SVO
-46 8.3 2441505 1972-07-06 2441606 1972-10-15 -101 SVO
-45 8.2 2441787 1973-04-14 2441889 1973-07-25 -102 AAVSO
-44 8.2 2442075 1974-01-27 2442172 1974-05-04 -97 SVO
-43 7.9 2442364 1974-11-12 2442455 1975-02-11 -91 SVO
-42 8.6 2442664 1975-09-08 2442738 1975-11-21 -74 SVO
-41 9.4 2442951 1976-06-21 2443021 1976-08-30 -70 SVO
-40 8.7 2443232 1977-03-29 2443304 1977-06-09 -72 AAVSO
-39 8.4 2443519 1978-01-10 2443587 1978-03-19 -68 SVO
-38 8.5 2443805 1978-10-23 2443870 1978-12-27 -65 SVO
-37 8.2 2444086 1979-07-31 2444153 1979-10-06 -67 SVO
-36 8.1 2444364 1980-05-04 2444436 1980-07-15 -72 SVO
-35 8.7 2444652 1981-02-16 2444719 1981-04-24 -67 SVO
-34 8.0 2444946 1981-12-07 2445002 1982-02-01 -56 SVO
-33 9.0 2445234 1982-09-21 2445285 1982-11-11 -51 SVO
-32 8.2 2445519 1983-07-03 2445568 1983-08-21 -49 SVO
-31 8.3 2445811 1984-04-20 2445851 1984-05-30 -40 SVO
-30 8.2 2446087 1985-01-21 2446134 1985-03-09 -47 SVO
-29 8.1 2446376 1985-11-06 2446417 1985-12-17 -41 SVO
-28 8.5 2446669 1986-08-26 2446700 1986-09-26 -31 SVO
-27 8.7 2446958 1987-06-11 2446983 1987-07-06 -25 SVO
-26 8.0 2447240 1988-03-19 2447266 1988-04-14 -26 SVO
-25 8.6 2447531 1989-01-04 2447549 1989-01-22 -18 SVO
-24 8.0 2447814 1989-10-14 2447832 1989-11-01 -18 SVO
-23 9.0 2448103 1990-07-30 2448115 1990-08-11 -12 SVO
-22 8.6 2448393 1991-05-16 2448398 1991-05-21 -5 SVO
-21 8.1 2448666 1992-02-13 2448681 1992-02-28 -15 SVO
-20 8.6 2448966 1992-12-09 2448964 1992-12-07 2 SVO
-19 8.2 2449245 1993-09-14 2449247 1993-09-16 -2 SVO
-18 8.4 2449531 1994-06-27 2449530 1994-06-26 1 SVO
-17 8.7 2449821 1995-04-13 2449813 1995-04-05 8 SVO
-16 8.6 2450105 1996-01-22 2450096 1996-01-13 9 SVO
-15 7.9 2450377 1996-10-20 2450379 1996-10-22 -2 SVO
-14 8.4 2450666 1997-08-05 2450662 1997-08-01 4 SVO
-13 8.1 2450954 1998-05-20 2450945 1998-05-11 9 SVO
-12 8.2 2451235 1999-02-25 2451228 1999-02-18 7 SVO
-11 8.0 2451513 1999-11-30 2451511 1999-11-28 2 SVO
-10 8.7 2451804 2000-09-16 2451794 2000-09-06 10 SVO
-9 8.5 2452090 2001-06-29 2452077 2001-06-16 13 SVO
-8 8.6 2452372 2002-04-07 2452360 2002-03-26 12 SVO
-7 8.2 2452653 2003-01-13 2452643 2003-01-03 10 SVO
-6 8.5 2452933 2003-10-20 2452926 2003-10-13 7 SVO
-5 8.2 2453213 2004-07-26 2453209 2004-07-22 4 SVO
-4 8.0 2453493 2005-05-02 2453492 2005-05-01 1 SVO
-3 8.4 2453780 2006-02-13 2453775 2006-02-08 5 SVO
-2 8.4 2454069 2006-11-29 2454058 2006-11-18 11 SVO
-1 8.2 2454342 2007-08-29 2454341 2007-08-28 1 SVO
0 8.2 2454624 2008-06-06 2454624 2008-06-06 0 SVO
1 8.4 2454911 2009-03-20 2454907 2009-03-16 4 SVO
2 8.3 2455197 2009-12-31 2455190 2009-12-24 7 SVO
3 9.0 2455492 2010-10-22 2455473 2010-10-03 19 SVO
4 8.3 2455778 2011-08-04 2455756 2011-07-13 22 SVO
5 8.6 2456062 2012-05-14 2456039 2012-04-21 23 SVO
6 8.6 2456347 2013-02-23 2456322 2013-01-29 25 SVO
7 8.0 2456631 2013-12-04 2456605 2013-11-08 26 SVO
8 8.3 2456917 2014-09-16 2456888 2014-08-18 29 SVO
9 8.3 2457203 2015-06-29 2457171 2015-05-28 32 SVO
10 8.6 2457500 2016-04-21 2457454 2016-03-06 46 SVO
11 8.8 2457790 2017-02-05 2457737 2016-12-14 53 SVO
12 7.9 2458065 2017-11-07 2458020 2017-09-23 45 SVO
13 8.3 2458354 2018-08-23 2458303 2018-07-03 51 SVO
14 8.3 2458637 2019-06-02 2458586 2019-04-12 51 SVO
15 8.6 2458927 2020-03-18 2458869 2020-01-20 58 SVO
16 8.2 2459214 2020-12-30 2459152 2020-10-29 62 SVO
17 8.3 2459497 2021-10-09 2459435 2021-08-08 62 SVO
18 7.9 2459775 2022-07-14 2459718 2022-05-18 57 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.