Maxima for R Gru
Period: 332.67, Epoch: 2440993.7
AAVSO offset: -2

E Mag O (JD) O (dat) C (JD) C (Dat) O-C Source
-86   2412409 1892-11-06 2412384 1892-10-12 25 GuL, 1920, 1.2
-84   2413072 1894-08-31 2413049 1894-08-08 23 AnHar, 1909, vol 55, p 95
-83   2413405 1895-07-30 2413382 1895-07-07 23 AnHar, 1952, vol 115, GuL, 1920, 1.2
-81   2414085 1897-06-09 2414047 1897-05-02 38 GuL, 1920, 1.2
-77 6.9 2415381 1900-12-27 2415378 1900-12-24 3 SVO
-76 8.2 2415709 1901-11-20 2415711 1901-11-22 -2 SVO
-75 8.2 2416053 1902-10-30 2416043 1902-10-20 10 SVO
-74 7.2 2416383 1903-09-25 2416376 1903-09-18 7 SVO
-73 7.1 2416708 1904-08-15 2416709 1904-08-16 -1 SVO
-72   2417037 1905-07-10 2417041 1905-07-14 -4 AnHar, 1952, vol 115, GuL, 1920, 1.2
-71   2417350 1906-05-19 2417374 1906-06-12 -24 AnHar, 1952, vol 115
-70   2417700 1907-05-04 2417707 1907-05-11 -7 AnHar, 1952, vol 115
-64 7.4 2419685 1912-10-09 2419703 1912-10-27 -18 SVO
-63   2420025 1913-09-14 2420035 1913-09-24 -10 AnHar, 1952, vol 115
-62   2420335 1914-07-21 2420368 1914-08-23 -33 AnHar, 1952, vol 115
-61 6.9 2420685 1915-07-06 2420701 1915-07-22 -16 SVO
-60   2421025 1916-06-10 2421033 1916-06-18 -8 AnHar, 1952, vol 115
-55 9.4 2422708 1921-01-18 2422697 1921-01-07 11 SVO
-54 8.8 2423040 1921-12-16 2423029 1921-12-05 11 AAVSO
-53 8.3 2423372 1922-11-13 2423362 1922-11-03 10 SVO
-52 8.0 2423700 1923-10-07 2423695 1923-10-02 5 SVO
-51 8.2 2424042 1924-09-13 2424028 1924-08-30 14 SVO
-50 8.1 2424370 1925-08-07 2424360 1925-07-28 10 SVO
-49 7.9 2424703 1926-07-06 2424693 1926-06-26 10 SVO
-48 7.8 2425031 1927-05-30 2425026 1927-05-25 5 AAVSO
-47 7.7 2425371 1928-05-04 2425358 1928-04-21 13 AAVSO
-46 9.3 2425707 1929-04-05 2425691 1929-03-20 16 AAVSO
-45 8.4 2426038 1930-03-02 2426024 1930-02-16 14 SVO
-44 8.7 2426371 1931-01-29 2426356 1931-01-14 15 SVO
-43 7.7 2426701 1931-12-25 2426689 1931-12-13 12 AAVSO
-42 8.9 2427030 1932-11-18 2427022 1932-11-10 8 SVO
-41 8.5 2427363 1933-10-17 2427354 1933-10-08 9 SVO
-40 8.1 2427693 1934-09-12 2427687 1934-09-06 6 SVO
-39 8.6 2428028 1935-08-13 2428020 1935-08-05 8 SVO
-38 7.9 2428363 1936-07-13 2428352 1936-07-02 11 SVO
-37 7.7 2428685 1937-05-31 2428685 1937-05-31 0 SVO
-36 8.0 2429025 1938-05-06 2429018 1938-04-29 7 SVO
-35 8.2 2429359 1939-04-05 2429350 1939-03-27 9 AAVSO
-34 7.2 2429673 1940-02-13 2429683 1940-02-23 -10 SVO
-33 9.4 2430007 1941-01-12 2430016 1941-01-21 -9 SVO
-32 8.5 2430347 1941-12-18 2430348 1941-12-19 -1 SVO
-31 8.8 2430681 1942-11-17 2430681 1942-11-17 0 SVO
-30 8.0 2431009 1943-10-11 2431014 1943-10-16 -5 SVO
-29 7.9 2431340 1944-09-06 2431346 1944-09-12 -6 SVO
-28 7.8 2431678 1945-08-10 2431679 1945-08-11 -1 SVO
-27 8.3 2432009 1946-07-07 2432012 1946-07-10 -3 SVO
-26 7.9 2432347 1947-06-10 2432344 1947-06-07 3 SVO
-25 7.8 2432674 1948-05-02 2432677 1948-05-05 -3 SVO
-24 8.3 2433017 1949-04-10 2433010 1949-04-03 7 SVO
-23 7.9 2433348 1950-03-07 2433342 1950-03-01 6 SVO
-22 8.8 2433688 1951-02-10 2433675 1951-01-28 13 SVO
-21 8.2 2434019 1952-01-07 2434008 1951-12-27 11 SVO
-20 8.1 2434356 1952-12-09 2434340 1952-11-23 16 SVO
-19 8.3 2434695 1953-11-13 2434673 1953-10-22 22 SVO
-18 9.2 2435029 1954-10-13 2435006 1954-09-20 23 SVO
-17 7.9 2435354 1955-09-03 2435338 1955-08-18 16 SVO
-16 9.3 2435688 1956-08-02 2435671 1956-07-16 17 SVO
-15 8.2 2436018 1957-06-28 2436004 1957-06-14 14 SVO
-14 9.5 2436358 1958-06-03 2436336 1958-05-12 22 SVO
-13 7.5 2436668 1959-04-09 2436669 1959-04-10 -1 SVO
-12 8.6 2437008 1960-03-14 2437002 1960-03-08 6 SVO
-11 8.4 2437345 1961-02-14 2437334 1961-02-03 11 SVO
-10 8.3 2437676 1962-01-11 2437667 1962-01-02 9 SVO
-9 7.8 2438006 1962-12-07 2438000 1962-12-01 6 SVO
-8 8.4 2438320 1963-10-17 2438332 1963-10-29 -12 SVO
-7 7.7 2438643 1964-09-04 2438665 1964-09-26 -22 SVO
-6 8.0 2438972 1965-07-30 2438998 1965-08-25 -26 SVO
-5 8.7 2439308 1966-07-01 2439330 1966-07-23 -22 SVO
-4 8.1 2439630 1967-05-19 2439663 1967-06-21 -33 SVO
-3 8.4 2439956 1968-04-09 2439996 1968-05-19 -40 SVO
-2 8.0 2440295 1969-03-14 2440328 1969-04-16 -33 SVO
-1 8.4 2440631 1970-02-13 2440661 1970-03-15 -30 SVO
0 7.9 2440959 1971-01-07 2440994 1971-02-11 -35 SVO
1 7.9 2441286 1971-11-30 2441326 1972-01-09 -40 SVO
2 7.9 2441610 1972-10-19 2441659 1972-12-07 -49 SVO
3 8.0 2441949 1973-09-23 2441992 1973-11-05 -43 SVO
4 7.9 2442285 1974-08-25 2442324 1974-10-03 -39 SVO
5 8.7 2442616 1975-07-22 2442657 1975-09-01 -41 SVO
6 7.3 2442944 1976-06-14 2442990 1976-07-30 -46 SVO
7 9.4 2443271 1977-05-07 2443322 1977-06-27 -51 AAVSO
8 8.8 2443617 1978-04-18 2443655 1978-05-26 -38 AAVSO
9 8.7 2443969 1979-04-05 2443988 1979-04-24 -19 SVO
10 7.6 2444297 1980-02-27 2444320 1980-03-21 -23 AAVSO
11 8.4 2444631 1981-01-26 2444653 1981-02-17 -22 SVO
12 8.7 2444973 1982-01-03 2444986 1982-01-16 -13 SVO
13 7.9 2445300 1982-11-26 2445318 1982-12-14 -18 SVO
14 8.1 2445640 1983-11-01 2445651 1983-11-12 -11 SVO
15 7.7 2445976 1984-10-02 2445984 1984-10-10 -8 SVO
16 9.2 2446319 1985-09-10 2446316 1985-09-07 3 SVO
17 8.1 2446653 1986-08-10 2446649 1986-08-06 4 SVO
18 8.5 2446992 1987-07-15 2446982 1987-07-05 10 SVO
19   2447318 1988-06-05 2447314 1988-06-01 4 AAVSO
20   2447651 1989-05-04 2447647 1989-04-30 4 AAVSO
21   2447990 1990-04-08 2447980 1990-03-29 10 AAVSO
22 7.6 2448308 1991-02-20 2448312 1991-02-24 -4 SVO
23 8.8 2448661 1992-02-08 2448645 1992-01-23 16 SVO
24 8.0 2448987 1992-12-30 2448978 1992-12-21 9 SVO
25 7.9 2449310 1993-11-18 2449310 1993-11-18 0 SVO
26 7.5 2449632 1994-10-06 2449643 1994-10-17 -11 SVO
27 8.8 2449971 1995-09-10 2449976 1995-09-15 -5 SVO
28 8.2 2450304 1996-08-08 2450308 1996-08-12 -4 SVO
29 8.2 2450628 1997-06-28 2450641 1997-07-11 -13 SVO
30 8.1 2450963 1998-05-29 2450974 1998-06-09 -11 SVO
31   2451296 1999-04-27 2451306 1999-05-07 -10 AAVSO
32   2451626 2000-03-22 2451639 2000-04-04 -13 AAVSO
33   2451966 2001-02-25 2451972 2001-03-03 -6 AAVSO
34 7.9 2452306 2002-01-31 2452304 2002-01-29 2 SVO
35 7.8 2452654 2003-01-14 2452637 2002-12-28 17 SVO
36 8.0 2452983 2003-12-09 2452970 2003-11-26 13 SVO
37 8.0 2453311 2004-11-01 2453303 2004-10-24 8 SVO
38 7.5 2453643 2005-09-29 2453635 2005-09-21 8 SVO
39 7.8 2453983 2006-09-04 2453968 2006-08-20 15 SVO
40 7.5 2454305 2007-07-23 2454301 2007-07-19 4 SVO
41 7.1 2454634 2008-06-16 2454633 2008-06-15 1 SVO
42 7.7 2454968 2009-05-16 2454966 2009-05-14 2 AAVSO
43 7.9 2455298 2010-04-11 2455299 2010-04-12 -1 AAVSO
44 8.5 2455647 2011-03-26 2455631 2011-03-10 16 AAVSO
45   2455981 2012-02-23 2455964 2012-02-06 17 AAVSO
46   2456324 2013-01-31 2456297 2013-01-04 27 AAVSO
47 7.7 2456651 2013-12-24 2456629 2013-12-02 22 SVO
48 8.0 2456981 2014-11-19 2456962 2014-10-31 19 SVO
49 8.7 2457313 2015-10-17 2457295 2015-09-29 18 SVO
50 8.0 2457663 2016-10-01 2457627 2016-08-26 36 SVO
51 7.6 2457979 2017-08-13 2457960 2017-07-25 19 SVO
52 7.5 2458306 2018-07-06 2458293 2018-06-23 13 SVO
53 8.3 2458650 2019-06-15 2458625 2019-05-21 25 SVO
54   2458970 2020-04-30 2458958 2020-04-18 12 SVO
55 8.2 2459319 2021-04-14 2459291 2021-03-17 28 SVO
56   2459660 2022-03-21 2459623 2022-02-12 37 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.