Maxima for R Del
Period: 285.23, Epoch: 2444076.8
AAVSO offset: 4

E Mag O (JD) O (dat) C (JD) C (Dat) O-C Source
-148   2401877 1864-01-06 2401863 1863-12-23 14 AnHar, 1937, vol 105, p 459
-146 8.7 2402475 1865-08-26 2402433 1865-07-15 42 SVO
-145 8.1 2402752 1866-05-30 2402718 1866-04-26 34 SVO
-143   2403325 1867-12-24 2403289 1867-11-18 36 MNRAS, 1914, vol 74, p 568
-142   2403608 1868-10-02 2403574 1868-08-29 34 VeBam, 1931, vol 3, p 1
-141 8.1 2403897 1869-07-18 2403859 1869-06-10 38 SVO
-140   2404189 1870-05-06 2404144 1870-03-22 45 VeBam, 1931, vol 3, p 1
-139   2404461 1871-02-02 2404430 1871-01-02 31 VeBam, 1931, vol 3, p 1
-138   2404753 1871-11-21 2404715 1871-10-14 38 AnHar, 1909, vol 55, p 95, VeBam, 1931, vol 3, p 1
-137 7.8 2405031 1872-08-25 2405000 1872-07-25 31 SVO
-132   2406462 1876-07-26 2406426 1876-06-20 36 GuL, 1920, 1.2
-131   2406750 1877-05-10 2406712 1877-04-02 38 GuL, 1920, 1.2
-129   2407324 1878-12-05 2407282 1878-10-24 42 GuL, 1920, 1.2, MNRAS, 1914, vol 74, p 568
-128   2407615 1879-09-22 2407567 1879-08-05 48 MNRAS, 1914, vol 74, p 568, GuL, 1920, 1.2
-127   2407892 1880-06-25 2407852 1880-05-16 40 GuL, 1920, 1.2, AnHar, 1909, vol 55, p 95
-126   2408193 1881-04-22 2408138 1881-02-26 55 GuL, 1920, 1.2, AnHar, 1909, vol 55, p 95
-125   2408478 1882-02-01 2408423 1881-12-08 55 GuL, 1920, 1.2
-123   2409054 1883-08-31 2408993 1883-07-01 61 GuL, 1920, 1.2, AnHar, 1909, vol 55, p 95
-122   2409323 1884-05-26 2409279 1884-04-12 44 GuL, 1920, 1.2
-119   2410191 1886-10-11 2410134 1886-08-15 57 GuL, 1920, 1.2
-118   2410474 1887-07-21 2410420 1887-05-28 54 GuL, 1920, 1.2, AnHar, 1909, vol 55, p 95
-114   2411617 1890-09-06 2411560 1890-07-12 57 GuL, 1920, 1.2
-110   2412741 1893-10-04 2412701 1893-08-25 40 AnHar, 1909, vol 55, p 95
-109   2413030 1894-07-20 2412987 1894-06-07 43 AnHar, 1909, vol 55, p 95
-106   2413858 1896-10-25 2413842 1896-10-09 16 AnHar, 1909, vol 55, p 95
-105   2414147 1897-08-10 2414128 1897-07-22 19 AnHar, 1909, vol 55, p 95
-104   2414460 1898-06-19 2414413 1898-05-03 47 AnHar, 1909, vol 55, p 95
-101   2415268 1900-09-05 2415269 1900-09-06 -1 GuL, 1920, 1.2, AnHar, 1909, vol 55, p 95
-100   2415530 1901-05-25 2415554 1901-06-18 -24 SVO
-99   2415820 1902-03-11 2415839 1902-03-30 -19 SVO
-98   2416113 1902-12-29 2416124 1903-01-09 -11 AnHar, 1909, vol 55, p 95
-97   2416414 1903-10-26 2416409 1903-10-21 5 AnHar, 1909, vol 55, p 95
-96   2416679 1904-07-17 2416695 1904-08-02 -16 AnHar, 1909, vol 55, p 95
-95   2416965 1905-04-29 2416980 1905-05-14 -15 SVO
-94   2417249 1906-02-07 2417265 1906-02-23 -16 AAVSO
-93 8.4 2417528 1906-11-13 2417550 1906-12-05 -22 AAVSO
-92 8.2 2417802 1907-08-14 2417836 1907-09-17 -34 SVO
-91   2418085 1908-05-23 2418121 1908-06-28 -36 SVO
-90   2418373 1909-03-07 2418406 1909-04-09 -33 AAVSO
-89   2418655 1909-12-14 2418691 1910-01-19 -36 SVO
-88 8.7 2418946 1910-10-01 2418977 1910-11-01 -31 SVO
-87 8.1 2419229 1911-07-11 2419262 1911-08-13 -33 SVO
-86   2419520 1912-04-27 2419547 1912-05-24 -27 SVO
-85 8.4 2419822 1913-02-23 2419832 1913-03-05 -10 AAVSO
-84 8.4 2420090 1913-11-18 2420117 1913-12-15 -27 AAVSO
-83 8.4 2420385 1914-09-09 2420403 1914-09-27 -18 SVO
-82   2420664 1915-06-15 2420688 1915-07-09 -24 SVO
-81   2420956 1916-04-02 2420973 1916-04-19 -17 AAVSO
-80   2421248 1917-01-19 2421258 1917-01-29 -10 AAVSO
-79 8.3 2421529 1917-10-27 2421544 1917-11-11 -15 SVO
-78 8.7 2421818 1918-08-12 2421829 1918-08-23 -11 SVO
-77 8.2 2422109 1919-05-30 2422114 1919-06-04 -5 AAVSO
-76 8.5 2422394 1920-03-10 2422399 1920-03-15 -5 AAVSO
-75 8.6 2422673 1920-12-14 2422685 1920-12-26 -12 AAVSO
-74 8.8 2422958 1921-09-25 2422970 1921-10-07 -12 SVO
-73 7.9 2423235 1922-06-29 2423255 1922-07-19 -20 SVO
-72 8.6 2423523 1923-04-13 2423540 1923-04-30 -17 AAVSO
-71 8.0 2423801 1924-01-16 2423825 1924-02-09 -24 SVO
-70 8.8 2424089 1924-10-30 2424111 1924-11-21 -22 SVO
-69 8.9 2424377 1925-08-14 2424396 1925-09-02 -19 SVO
-68 7.9 2424650 1926-05-14 2424681 1926-06-14 -31 SVO
-67 8.2 2424940 1927-02-28 2424966 1927-03-26 -26 SVO
-66 8.3 2425225 1927-12-10 2425252 1928-01-06 -27 SVO
-65 8.1 2425508 1928-09-18 2425537 1928-10-17 -29 SVO
-64 8.0 2425790 1929-06-27 2425822 1929-07-29 -32 SVO
-63 8.2 2426075 1930-04-08 2426107 1930-05-10 -32 AAVSO
-62 8.1 2426361 1931-01-19 2426393 1931-02-20 -32 SVO
-61 8.6 2426650 1931-11-04 2426678 1931-12-02 -28 SVO
-60 8.6 2426937 1932-08-17 2426963 1932-09-12 -26 SVO
-59 8.5 2427222 1933-05-29 2427248 1933-06-24 -26 SVO
-58 8.4 2427504 1934-03-07 2427533 1934-04-05 -29 AAVSO
-57 8.2 2427781 1934-12-09 2427819 1935-01-16 -38 SVO
-56 8.1 2428065 1935-09-19 2428104 1935-10-28 -39 SVO
-55 8.3 2428351 1936-07-01 2428389 1936-08-08 -38 SVO
-54 8.6 2428648 1937-04-24 2428674 1937-05-20 -26 SVO
-53   2428945 1938-02-15 2428960 1938-03-02 -15 AAVSO
-52 7.7 2429218 1938-11-15 2429245 1938-12-12 -27 SVO
-51 8.7 2429505 1939-08-29 2429530 1939-09-23 -25 SVO
-50   2429787 1940-06-06 2429815 1940-07-04 -28 SVO
-49   2430067 1941-03-13 2430101 1941-04-16 -34 AAVSO
-48 8.0 2430354 1941-12-25 2430386 1942-01-26 -32 SVO
-47 8.6 2430642 1942-10-09 2430671 1942-11-07 -29 SVO
-46 8.8 2430933 1943-07-27 2430956 1943-08-19 -23 SVO
-45   2431217 1944-05-06 2431241 1944-05-30 -24 SVO
-44   2431514 1945-02-27 2431527 1945-03-12 -13 AAVSO
-43 8.3 2431780 1945-11-20 2431812 1945-12-22 -32 SVO
-42 8.5 2432075 1946-09-11 2432097 1946-10-03 -22 SVO
-41 8.3 2432358 1947-06-21 2432382 1947-07-15 -24 SVO
-40   2432640 1948-03-29 2432668 1948-04-26 -28 SVO
-39 8.2 2432920 1949-01-03 2432953 1949-02-05 -33 AAVSO
-38 8.0 2433197 1949-10-07 2433238 1949-11-17 -41 SVO
-37 8.6 2433491 1950-07-28 2433523 1950-08-29 -32 SVO
-36 8.5 2433774 1951-05-07 2433809 1951-06-11 -35 AAVSO
-35 8.4 2434058 1952-02-15 2434094 1952-03-22 -36 SVO
-34 7.9 2434343 1952-11-26 2434379 1953-01-01 -36 SVO
-33 9.4 2434636 1953-09-15 2434664 1953-10-13 -28 SVO
-32 8.8 2434913 1954-06-19 2434949 1954-07-25 -36 AAVSO
-31   2435196 1955-03-29 2435235 1955-05-07 -39 AAVSO
-30 8.7 2435484 1956-01-11 2435520 1956-02-16 -36 AAVSO
-29 8.4 2435774 1956-10-27 2435805 1956-11-27 -31 SVO
-28 7.8 2436060 1957-08-09 2436090 1957-09-08 -30 SVO
-27 8.2 2436337 1958-05-13 2436376 1958-06-21 -39 AAVSO
-26   2436629 1959-03-01 2436661 1959-04-02 -32 AAVSO
-25 9.0 2436932 1959-12-29 2436946 1960-01-12 -14 AAVSO
-24 8.5 2437224 1960-10-16 2437231 1960-10-23 -7 SVO
-23 8.5 2437495 1961-07-14 2437517 1961-08-05 -22 SVO
-22 8.6 2437785 1962-04-30 2437802 1962-05-17 -17 AAVSO
-21   2438083 1963-02-22 2438087 1963-02-26 -4 AAVSO
-20 9.3 2438371 1963-12-07 2438372 1963-12-08 -1 AAVSO
-19 8.3 2438652 1964-09-13 2438657 1964-09-18 -5 SVO
-18 8.4 2438929 1965-06-17 2438943 1965-07-01 -14 SVO
-17 8.3 2439216 1966-03-31 2439228 1966-04-12 -12 AAVSO
-16 8.4 2439497 1967-01-06 2439513 1967-01-22 -16 AAVSO
-15 8.0 2439776 1967-10-12 2439798 1967-11-03 -22 SVO
-14 8.7 2440064 1968-07-26 2440084 1968-08-15 -20 SVO
-13 8.2 2440347 1969-05-05 2440369 1969-05-27 -22 SVO
-12 8.3 2440640 1970-02-22 2440654 1970-03-08 -14 SVO
-11 8.7 2440934 1970-12-13 2440939 1970-12-18 -5 SVO
-10 8.3 2441219 1971-09-24 2441225 1971-09-30 -6 SVO
-9 8.3 2441505 1972-07-06 2441510 1972-07-11 -5 SVO
-8 8.2 2441787 1973-04-14 2441795 1973-04-22 -8 AAVSO
-7 8.2 2442075 1974-01-27 2442080 1974-02-01 -5 SVO
-6 7.9 2442364 1974-11-12 2442365 1974-11-13 -1 SVO
-5 8.6 2442664 1975-09-08 2442651 1975-08-26 13 SVO
-4 9.4 2442951 1976-06-21 2442936 1976-06-06 15 SVO
-3 8.7 2443232 1977-03-29 2443221 1977-03-18 11 AAVSO
-2 8.4 2443519 1978-01-10 2443506 1977-12-28 13 SVO
-1 8.5 2443805 1978-10-23 2443792 1978-10-10 13 SVO
0 8.2 2444086 1979-07-31 2444077 1979-07-22 9 SVO
1 8.1 2444364 1980-05-04 2444362 1980-05-02 2 SVO
2 8.7 2444652 1981-02-16 2444647 1981-02-11 5 SVO
3 8.0 2444946 1981-12-07 2444933 1981-11-24 13 SVO
4 9.0 2445234 1982-09-21 2445218 1982-09-05 16 SVO
5 8.2 2445519 1983-07-03 2445503 1983-06-17 16 SVO
6 8.3 2445811 1984-04-20 2445788 1984-03-28 23 SVO
7 8.2 2446087 1985-01-21 2446073 1985-01-07 14 SVO
8 8.1 2446376 1985-11-06 2446359 1985-10-20 17 SVO
9 8.5 2446669 1986-08-26 2446644 1986-08-01 25 SVO
10 8.7 2446958 1987-06-11 2446929 1987-05-13 29 SVO
11 8.0 2447240 1988-03-19 2447214 1988-02-22 26 SVO
12 8.6 2447531 1989-01-04 2447500 1988-12-04 31 SVO
13 8.0 2447814 1989-10-14 2447785 1989-09-15 29 SVO
14 9.0 2448103 1990-07-30 2448070 1990-06-27 33 SVO
15 8.6 2448393 1991-05-16 2448355 1991-04-08 38 SVO
16 8.1 2448666 1992-02-13 2448641 1992-01-19 25 SVO
17 8.6 2448966 1992-12-09 2448926 1992-10-30 40 SVO
18 8.2 2449245 1993-09-14 2449211 1993-08-11 34 SVO
19 8.4 2449531 1994-06-27 2449496 1994-05-23 35 SVO
20 8.7 2449821 1995-04-13 2449781 1995-03-04 40 SVO
21 8.6 2450105 1996-01-22 2450067 1995-12-15 38 SVO
22 7.9 2450377 1996-10-20 2450352 1996-09-25 25 SVO
23 8.4 2450666 1997-08-05 2450637 1997-07-07 29 SVO
24 8.1 2450954 1998-05-20 2450922 1998-04-18 32 SVO
25 8.2 2451235 1999-02-25 2451208 1999-01-29 27 SVO
26 8.0 2451513 1999-11-30 2451493 1999-11-10 20 SVO
27 8.7 2451804 2000-09-16 2451778 2000-08-21 26 SVO
28 8.5 2452090 2001-06-29 2452063 2001-06-02 27 SVO
29 8.6 2452372 2002-04-07 2452349 2002-03-15 23 SVO
30 8.2 2452653 2003-01-13 2452634 2002-12-25 19 SVO
31 8.5 2452933 2003-10-20 2452919 2003-10-06 14 SVO
32 8.2 2453213 2004-07-26 2453204 2004-07-17 9 SVO
33 8.0 2453493 2005-05-02 2453489 2005-04-28 4 SVO
34 8.4 2453780 2006-02-13 2453775 2006-02-08 5 SVO
35 8.4 2454069 2006-11-29 2454060 2006-11-20 9 SVO
36 8.2 2454342 2007-08-29 2454345 2007-09-01 -3 SVO
37 8.2 2454624 2008-06-06 2454630 2008-06-12 -6 SVO
38 8.4 2454911 2009-03-20 2454916 2009-03-25 -5 SVO
39 8.3 2455197 2009-12-31 2455201 2010-01-04 -4 SVO
40 9.0 2455492 2010-10-22 2455486 2010-10-16 6 SVO
41 8.3 2455778 2011-08-04 2455771 2011-07-28 7 SVO
42 8.6 2456062 2012-05-14 2456057 2012-05-09 5 SVO
43 8.6 2456347 2013-02-23 2456342 2013-02-18 5 SVO
44 8.0 2456631 2013-12-04 2456627 2013-11-30 4 SVO
45 8.3 2456917 2014-09-16 2456912 2014-09-11 5 SVO
46 8.3 2457203 2015-06-29 2457197 2015-06-23 6 SVO
47 8.6 2457500 2016-04-21 2457483 2016-04-04 17 SVO
48 8.8 2457790 2017-02-05 2457768 2017-01-14 22 SVO
49 7.9 2458065 2017-11-07 2458053 2017-10-26 12 SVO
50 8.3 2458354 2018-08-23 2458338 2018-08-07 16 SVO
51 8.3 2458637 2019-06-02 2458624 2019-05-20 13 SVO
52 8.6 2458927 2020-03-18 2458909 2020-02-29 18 SVO
53 8.2 2459214 2020-12-30 2459194 2020-12-10 20 SVO
54 8.3 2459497 2021-10-09 2459479 2021-09-21 18 SVO
55 7.9 2459775 2022-07-14 2459765 2022-07-04 10 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.