Maxima for omi Cet
Period: 330.2, Epoch: 2458457
Back to main page  Mean light curve  Period diagram

E Mag O (JD) O (dat) C (JD) C (Dat) O-C Source
-465   2304169 1596-07-01 2304914 1598-07-16 -745 AnHar, 1909, vol 55, p 95
-451   2308781 1609-02-15 2309537 1611-03-13 -756 AnHar, 1909, vol 55, p 95
-418   2319714 1639-01-22 2320433 1641-01-10 -719 AnHar, 1909, vol 55, p 95
-395   2327308 1659-11-07 2328028 1661-10-27 -720 AnHar, 1909, vol 55, p 95
-394 2.7 2327652 1660-10-16 2328358 1662-09-22 -706 SVO
-393 4.0 2327975 1661-09-04 2328688 1663-08-18 -713 SVO
-392   2328320 1662-08-15 2329019 1664-07-14 -699 AnHar, 1909, vol 55, p 95
-387   2329980 1667-03-02 2330670 1669-01-20 -690 AnHar, 1909, vol 55, p 95
-385   2330629 1668-12-10 2331330 1670-11-11 -701 AnHar, 1909, vol 55, p 95
-384   2330954 1669-10-31 2331660 1671-10-07 -706 AnHar, 1909, vol 55, p 95
-383   2331282 1670-09-24 2331990 1672-09-01 -708 AnHar, 1909, vol 55, p 95
-382   2331624 1671-09-01 2332321 1673-07-29 -697 AnHar, 1909, vol 55, p 95
-376   2333586 1677-01-14 2334302 1678-12-31 -716 AnHar, 1909, vol 55, p 95
-375   2333933 1677-12-27 2334632 1679-11-26 -699 AnHar, 1909, vol 55, p 95
-374 2.5 2334256 1678-11-15 2334962 1680-10-21 -706 SVO
-373   2334580 1679-10-05 2335292 1681-09-16 -712 AnHar, 1909, vol 55, p 95
-371   2335278 1681-09-02 2335953 1683-07-09 -675 AnHar, 1909, vol 55, p 95
-365   2337233 1687-01-09 2337934 1688-12-10 -701 AnHar, 1909, vol 55, p 95
-354   2340909 1697-02-01 2341566 1698-11-20 -657 AnHar, 1909, vol 55, p 95
-353   2341266 1698-01-24 2341896 1699-10-16 -630 AnHar, 1909, vol 55, p 95
-351   2341940 1699-11-29 2342557 1701-08-08 -617 AnHar, 1909, vol 55, p 95
-350 2.7 2342264 1700-10-19 2342887 1702-07-04 -623 SVO
-349   2342610 1701-09-30 2343217 1703-05-30 -607 AnHar, 1909, vol 55, p 95
-348 4.0 2342948 1702-09-03 2343547 1704-04-24 -599 SVO
-341   2345262 1709-01-03 2345859 1710-08-23 -597 AnHar, 1909, vol 55, p 95
-340   2345599 1709-12-06 2346189 1711-07-19 -590 AnHar, 1909, vol 55, p 95
-339   2345945 1710-11-17 2346519 1712-06-13 -574 AnHar, 1909, vol 55, p 95
-338   2346277 1711-10-15 2346849 1713-05-09 -572 AnHar, 1909, vol 55, p 95
-337   2346603 1712-09-05 2347180 1714-04-05 -577 AnHar, 1909, vol 55, p 95
-331   2348592 1718-02-15 2349161 1719-09-07 -569 AnHar, 1909, vol 55, p 95
-330   2348935 1719-01-24 2349491 1720-08-02 -556 AnHar, 1909, vol 55, p 95
-328   2349603 1720-11-22 2350151 1722-05-24 -548 AnHar, 1909, vol 55, p 95
-318   2352913 1729-12-15 2353453 1731-06-08 -540 AnHar, 1909, vol 55, p 95
-317   2353256 1730-11-23 2353784 1732-05-04 -528 AnHar, 1909, vol 55, p 95
-316   2353574 1731-10-07 2354114 1733-03-30 -540 AnHar, 1909, vol 55, p 95
-309   2355880 1738-01-29 2356425 1739-07-28 -545 AnHar, 1909, vol 55, p 95
-308   2356203 1738-12-18 2356755 1740-06-22 -552 AnHar, 1909, vol 55, p 95
-293   2361161 1752-07-15 2361708 1754-01-13 -547 AnHar, 1909, vol 55, p 95
-288   2362823 1757-02-01 2363359 1758-07-22 -536 AnHar, 1909, vol 55, p 95
-287   2363171 1758-01-15 2363690 1759-06-18 -519 AnHar, 1909, vol 55, p 95
-286   2363495 1758-12-05 2364020 1760-05-13 -525 AnHar, 1909, vol 55, p 95
-276   2366833 1768-01-25 2367322 1769-05-28 -489 AnHar, 1909, vol 55, p 95
-275   2367174 1768-12-31 2367652 1770-04-23 -478 AnHar, 1909, vol 55, p 95
-274   2367498 1769-11-20 2367982 1771-03-19 -484 AnHar, 1909, vol 55, p 95
-273   2367820 1770-10-08 2368312 1772-02-12 -492 AnHar, 1909, vol 55, p 95
-263 1.9 2371124 1779-10-25 2371614 1781-02-26 -490 SVO
-262   2371470 1780-10-05 2371945 1782-01-23 -475 AnHar, 1909, vol 55, p 95
-260   2372141 1782-08-07 2372605 1783-11-14 -464 AnHar, 1909, vol 55, p 95
-254   2374147 1788-02-03 2374586 1789-04-17 -439 AnHar, 1909, vol 55, p 95
-253   2374477 1788-12-29 2374916 1790-03-13 -439 AnHar, 1909, vol 55, p 95
-252   2374813 1789-11-30 2375247 1791-02-07 -434 AnHar, 1909, vol 55, p 95
-251 3.1 2375130 1790-10-13 2375577 1792-01-03 -447 SVO
-250   2375477 1791-09-25 2375907 1792-11-28 -430 AnHar, 1909, vol 55, p 95
-244   2377465 1797-03-05 2377888 1798-05-02 -423 AnHar, 1909, vol 55, p 95
-241   2378455 1799-11-20 2378879 1801-01-18 -424 AnHar, 1909, vol 55, p 95
-240   2378797 1800-10-28 2379209 1801-12-14 -412 AnHar, 1909, vol 55, p 95
-232   2381434 1808-01-17 2381851 1809-03-09 -417 AnHar, 1909, vol 55, p 95
-231   2381758 1808-12-06 2382181 1810-02-02 -423 AnHar, 1909, vol 55, p 95
-230   2382101 1809-11-14 2382511 1810-12-29 -410 AnHar, 1909, vol 55, p 95
-229   2382428 1810-10-07 2382841 1811-11-24 -413 AnHar, 1909, vol 55, p 95
-228   2382776 1811-09-20 2383171 1812-10-19 -395 AnHar, 1909, vol 55, p 95
-227   2383114 1812-08-23 2383502 1813-09-15 -388 AnHar, 1909, vol 55, p 95
-221   2385074 1818-01-04 2385483 1819-02-17 -409 AnHar, 1909, vol 55, p 95
-220   2385408 1818-12-04 2385813 1820-01-13 -405 AnHar, 1909, vol 55, p 95
-219 3.6 2385742 1819-11-03 2386143 1820-12-08 -401 SVO
-218 3.2 2386067 1820-09-23 2386473 1821-11-03 -406 SVO
-201   2391676 1836-02-01 2392087 1837-03-18 -411 AnHar, 1909, vol 55, p 95
-200   2392007 1836-12-28 2392417 1838-02-11 -410 AnHar, 1909, vol 55, p 95
-197 2.6 2393023 1839-10-10 2393408 1840-10-29 -385 SVO
-196 3.6 2393369 1840-09-20 2393738 1841-09-24 -369 SVO
-195   2393709 1841-08-26 2394068 1842-08-20 -359 AnHar, 1909, vol 55, p 95
-194   2394044 1842-07-27 2394398 1843-07-16 -354 AnHar, 1909, vol 55, p 95
-191   2394989 1845-02-26 2395389 1846-04-02 -400 AnHar, 1909, vol 55, p 95
-190   2395331 1846-02-03 2395719 1847-02-26 -388 AnHar, 1909, vol 55, p 95
-189 2.7 2395652 1846-12-21 2396049 1848-01-22 -397 SVO
-188 4.3 2395981 1847-11-15 2396379 1848-12-17 -398 SVO
-187 3.3 2396318 1848-10-17 2396710 1849-11-13 -392 SVO
-186 4.2 2396660 1849-09-24 2397040 1850-10-09 -380 SVO
-185   2397010 1850-09-09 2397370 1851-09-04 -360 AnHar, 1909, vol 55, p 95
-184   2397326 1851-07-22 2397700 1852-07-30 -374 AnHar, 1909, vol 55, p 95
-180 3.2 2398653 1855-03-10 2399021 1856-03-12 -368 SVO
-179   2398983 1856-02-03 2399351 1857-02-05 -368 AnHar, 1909, vol 55, p 95
-178   2399340 1857-01-25 2399681 1858-01-01 -341 AnHar, 1909, vol 55, p 95
-177 2.9 2399667 1857-12-18 2400012 1858-11-28 -345 SVO
-176 3.6 2399990 1858-11-06 2400342 1859-10-24 -352 SVO
-175 3.0 2400328 1859-10-10 2400672 1860-09-18 -344 SVO
-174 2.8 2400657 1860-09-03 2401002 1861-08-14 -345 SVO
-173   2400990 1861-08-02 2401332 1862-07-10 -342 AnHar, 1909, vol 55, p 95
-172   2401324 1862-07-02 2401663 1863-06-06 -339 AnHar, 1909, vol 55, p 95
-170 2.9 2401989 1864-04-27 2402323 1865-03-27 -334 SVO
-169 3.8 2402315 1865-03-19 2402653 1866-02-20 -338 SVO
-168 2.8 2402647 1866-02-14 2402983 1867-01-16 -336 SVO
-167 5.1 2402980 1867-01-13 2403314 1867-12-13 -334 SVO
-166 3.1 2403306 1867-12-05 2403644 1868-11-07 -338 SVO
-165 5.1 2403639 1868-11-02 2403974 1869-10-03 -335 SVO
-164 4.0 2403967 1869-09-26 2404304 1870-08-29 -337 SVO
-163 3.3 2404301 1870-08-26 2404634 1871-07-25 -333 SVO
-162   2404634 1871-07-25 2404965 1872-06-20 -331 AnHar, 1909, vol 55, p 95
-161   2404967 1872-06-22 2405295 1873-05-16 -328 AnHar, 1909, vol 55, p 95
-160   2405304 1873-05-25 2405625 1874-04-11 -321 AnHar, 1909, vol 55, p 95
-158 2.8 2405968 1875-03-20 2406285 1876-01-31 -317 SVO
-157   2406297 1876-02-12 2406616 1876-12-27 -319 AnHar, 1909, vol 55, p 95
-156 3.1 2406640 1877-01-20 2406946 1877-11-22 -306 SVO
-155 3.5 2406966 1877-12-12 2407276 1878-10-18 -310 SVO
-154 2.9 2407284 1878-10-26 2407606 1879-09-13 -322 SVO
-153 4.1 2407615 1879-09-22 2407936 1880-08-08 -321 SVO
-152   2407919 1880-07-22 2408267 1881-07-05 -348 AnHar, 1909, vol 55, p 95
-151   2408260 1881-06-28 2408597 1882-05-31 -337 GuL, 1918, 1.1
-150   2408609 1882-06-12 2408927 1883-04-26 -318 GuL, 1918, 1.1
-148   2409242 1884-03-06 2409587 1885-02-14 -345 AnHar, 1909, vol 55, p 95
-147 3.4 2409579 1885-02-06 2409918 1886-01-11 -339 SVO
-146 4.9 2409912 1886-01-05 2410248 1886-12-07 -336 SVO
-145 4.3 2410243 1886-12-02 2410578 1887-11-02 -335 SVO
-144 4.5 2410578 1887-11-02 2410908 1888-09-27 -330 SVO
-143 3.1 2410899 1888-09-18 2411238 1889-08-23 -339 SVO
-142   2411235 1889-08-20 2411569 1890-07-20 -334 AnHar, 1909, vol 55, p 95
-139   2412240 1892-05-21 2412559 1893-04-05 -319 BHarO, 1930, no 872, p 28
-137   2412907 1894-03-19 2413220 1895-01-26 -313 AnHar, 1909, vol 55, p 95
-136 3.9 2413254 1895-03-01 2413550 1895-12-22 -296 SVO
-135 3.6 2413594 1896-02-04 2413880 1896-11-16 -286 SVO
-134 3.7 2413921 1896-12-27 2414210 1897-10-12 -289 SVO
-133 3.4 2414250 1897-11-21 2414540 1898-09-07 -290 SVO
-132 2.8 2414568 1898-10-05 2414871 1899-08-04 -303 SVO
-131 3.8 2414900 1899-09-02 2415201 1900-06-30 -301 SVO
-130   2415232 1900-07-31 2415531 1901-05-26 -299 AnHar, 1909, vol 55, p 95
-129   2415550 1901-06-14 2415861 1902-04-21 -311 BHarO, 1930, no 872, p 28
-128   2415888 1902-05-18 2416191 1903-03-17 -303 BHarO, 1930, no 872, p 28
-127   2416220 1903-04-15 2416522 1904-02-11 -302 BHarO, 1930, no 872, p 28
-126   2416545 1904-03-05 2416852 1905-01-06 -307 AnHar, 1909, vol 55, p 95
-125   2416895 1905-02-18 2417182 1905-12-02 -287 AnHar, 1909, vol 55, p 95
-124 4.3 2417226 1906-01-15 2417512 1906-10-28 -286 SVO
-123 2.5 2417559 1906-12-14 2417842 1907-09-23 -283 SVO
-122 3.9 2417889 1907-11-09 2418173 1908-08-19 -284 SVO
-121 3.5 2418222 1908-10-07 2418503 1909-07-15 -281 SVO
-120 3.2 2418549 1909-08-30 2418833 1910-06-10 -284 SVO
-119 3.3 2418870 1910-07-17 2419163 1911-05-06 -293 SVO
-118 3.5 2419219 1911-07-01 2419493 1912-03-31 -274 AAVSO
-117   2419553 1912-05-30 2419824 1913-02-25 -271 AAVSO
-116 3.1 2419872 1913-04-14 2420154 1914-01-21 -282 SVO
-115 3.4 2420202 1914-03-10 2420484 1914-12-17 -282 SVO
-114 3.7 2420532 1915-02-03 2420814 1915-11-12 -282 SVO
-113 3.2 2420859 1915-12-27 2421144 1916-10-07 -285 SVO
-112 3.3 2421188 1916-11-20 2421475 1917-09-03 -287 SVO
-111 3.1 2421516 1917-10-14 2421805 1918-07-30 -289 SVO
-110 3.5 2421850 1918-09-13 2422135 1919-06-25 -285 SVO
-109 3.4 2422175 1919-08-04 2422465 1920-05-20 -290 SVO
-108 3.2 2422510 1920-07-04 2422795 1921-04-15 -285 AAVSO
-107   2422824 1921-05-14 2423126 1922-03-12 -302 AAVSO
-106 3.8 2423174 1922-04-29 2423456 1923-02-05 -282 SVO
-105 2.9 2423488 1923-03-09 2423786 1924-01-01 -298 SVO
-104 4.7 2423822 1924-02-06 2424116 1924-11-26 -294 SVO
-103 3.8 2424156 1925-01-05 2424446 1925-10-22 -290 SVO
-102 3.3 2424484 1925-11-29 2424777 1926-09-18 -293 SVO
-101 3.3 2424810 1926-10-21 2425107 1927-08-14 -297 SVO
-100 4.0 2425149 1927-09-25 2425437 1928-07-09 -288 SVO
-99 3.1 2425479 1928-08-20 2425767 1929-06-04 -288 SVO
-98 4.6 2425813 1929-07-20 2426097 1930-04-30 -284 SVO
-97 3.7 2426144 1930-06-16 2426428 1931-03-27 -284 SVO
-96 3.9 2426474 1931-05-12 2426758 1932-02-20 -284 SVO
-95 3.8 2426814 1932-04-16 2427088 1933-01-15 -274 SVO
-94 3.8 2427145 1933-03-13 2427418 1933-12-11 -273 SVO
-93 3.9 2427474 1934-02-05 2427748 1934-11-06 -274 SVO
-92 3.1 2427805 1935-01-02 2428079 1935-10-03 -274 SVO
-91 4.2 2428150 1935-12-13 2428409 1936-08-28 -259 SVO
-90 3.0 2428483 1936-11-10 2428739 1937-07-24 -256 SVO
-89 4.4 2428826 1937-10-19 2429069 1938-06-19 -243 SVO
-88 3.9 2429155 1938-09-13 2429399 1939-05-15 -244 SVO
-87 3.2 2429483 1939-08-07 2429730 1940-04-10 -247 SVO
-86 3.6 2429823 1940-07-12 2430060 1941-03-06 -237 SVO
-85 3.6 2430166 1941-06-20 2430390 1942-01-30 -224 AAVSO
-84 3.5 2430491 1942-05-11 2430720 1942-12-26 -229 SVO
-83 3.1 2430815 1943-03-31 2431050 1943-11-21 -235 SVO
-82 4.1 2431154 1944-03-04 2431381 1944-10-17 -227 SVO
-81 3.0 2431480 1945-01-24 2431711 1945-09-12 -231 SVO
-80 4.0 2431822 1946-01-01 2432041 1946-08-08 -219 SVO
-79 3.9 2432154 1946-11-29 2432371 1947-07-04 -217 SVO
-78 2.9 2432480 1947-10-21 2432701 1948-05-29 -221 SVO
-77 3.6 2432819 1948-09-24 2433032 1949-04-25 -213 SVO
-76 3.2 2433152 1949-08-23 2433362 1950-03-21 -210 SVO
-75 3.7 2433484 1950-07-21 2433692 1951-02-14 -208 SVO
-74 3.4 2433809 1951-06-11 2434022 1952-01-10 -213 SVO
-73 3.2 2434155 1952-05-22 2434352 1952-12-05 -197 SVO
-72 3.4 2434488 1953-04-20 2434683 1953-11-01 -195 SVO
-71 3.4 2434821 1954-03-19 2435013 1954-09-27 -192 SVO
-70 3.8 2435148 1955-02-09 2435343 1955-08-23 -195 SVO
-69 3.6 2435484 1956-01-11 2435673 1956-07-18 -189 SVO
-68 4.0 2435810 1956-12-02 2436003 1957-06-13 -193 SVO
-67 3.2 2436140 1957-10-28 2436334 1958-05-10 -194 SVO
-66 3.5 2436472 1958-09-25 2436664 1959-04-05 -192 SVO
-65 3.2 2436801 1959-08-20 2436994 1960-02-29 -193 SVO
-64 3.1 2437134 1960-07-18 2437324 1961-01-24 -190 SVO
-63 3.0 2437469 1961-06-18 2437654 1961-12-20 -185 SVO
-62 3.9 2437800 1962-05-15 2437985 1962-11-16 -185 SVO
-61 3.4 2438134 1963-04-14 2438315 1963-10-12 -181 SVO
-60 3.1 2438463 1964-03-08 2438645 1964-09-06 -182 SVO
-59 3.2 2438796 1965-02-04 2438975 1965-08-02 -179 SVO
-58 3.4 2439131 1966-01-05 2439305 1966-06-28 -174 SVO
-57 3.7 2439463 1966-12-03 2439636 1967-05-25 -173 SVO
-56 3.2 2439802 1967-11-07 2439966 1968-04-19 -164 SVO
-55 3.7 2440127 1968-09-27 2440296 1969-03-15 -169 SVO
-54 3.0 2440464 1969-08-30 2440626 1970-02-08 -162 SVO
-53 4.1 2440809 1970-08-10 2440956 1971-01-04 -147 SVO
-52 3.8 2441154 1971-07-21 2441287 1971-12-01 -133 SVO
-51 3.5 2441492 1972-06-23 2441617 1972-10-26 -125 SVO
-50   2441828 1973-05-25 2441947 1973-09-21 -119 AAVSO
-49 3.0 2442146 1974-04-08 2442277 1974-08-17 -131 SVO
-48 3.4 2442486 1975-03-14 2442607 1975-07-13 -121 SVO
-47 4.5 2442829 1976-02-20 2442938 1976-06-08 -109 SVO
-46 3.3 2443154 1977-01-10 2443268 1977-05-04 -114 SVO
-45 2.7 2443489 1977-12-11 2443598 1978-03-30 -109 SVO
-44 4.4 2443841 1978-11-28 2443928 1979-02-23 -87 SVO
-43 3.7 2444175 1979-10-28 2444258 1980-01-19 -83 SVO
-42 3.5 2444511 1980-09-28 2444589 1980-12-15 -78 SVO
-41 3.9 2444843 1981-08-26 2444919 1981-11-10 -76 SVO
-40 2.6 2445180 1982-07-29 2445249 1982-10-06 -69 AAVSO
-39 3.8 2445514 1983-06-28 2445579 1983-09-01 -65 AAVSO
-38 4.2 2445842 1984-05-21 2445909 1984-07-27 -67 AAVSO
-37 3.3 2446181 1985-04-25 2446240 1985-06-23 -59 SVO
-36 3.6 2446510 1986-03-20 2446570 1986-05-19 -60 SVO
-35 3.1 2446840 1987-02-13 2446900 1987-04-14 -60 SVO
-34 4.2 2447175 1988-01-14 2447230 1988-03-09 -55 SVO
-33 3.4 2447497 1988-12-01 2447560 1989-02-02 -63 SVO
-32 3.2 2447826 1989-10-26 2447891 1989-12-30 -65 SVO
-31 3.5 2448168 1990-10-03 2448221 1990-11-25 -53 SVO
-30 3.4 2448500 1991-08-31 2448551 1991-10-21 -51 SVO
-29 2.6 2448825 1992-07-21 2448881 1992-09-15 -56 SVO
-28 3.7 2449166 1993-06-27 2449211 1993-08-11 -45 SVO
-27 3.5 2449498 1994-05-25 2449542 1994-07-08 -44 SVO
-26 3.4 2449831 1995-04-23 2449872 1995-06-03 -41 SVO
-25 3.5 2450165 1996-03-22 2450202 1996-04-28 -37 SVO
-24 2.7 2450488 1997-02-08 2450532 1997-03-24 -44 SVO
-23 3.8 2450826 1998-01-12 2450862 1998-02-17 -36 SVO
-22 4.5 2451164 1998-12-16 2451193 1999-01-14 -29 SVO
-21 3.3 2451499 1999-11-16 2451523 1999-12-10 -24 SVO
-20 3.6 2451825 2000-10-07 2451853 2000-11-04 -28 SVO
-19 3.1 2452166 2001-09-13 2452183 2001-09-30 -17 SVO
-18 3.1 2452494 2002-08-07 2452513 2002-08-26 -19 SVO
-17 3.6 2452837 2003-07-16 2452844 2003-07-23 -7 SVO
-16 3.4 2453174 2004-06-17 2453174 2004-06-17 0 SVO
-15 3.6 2453510 2005-05-19 2453504 2005-05-13 6 SVO
-14 3.6 2453841 2006-04-15 2453834 2006-04-08 7 SVO
-13 2.9 2454156 2007-02-24 2454164 2007-03-04 -8 SVO
-12 3.9 2454495 2008-01-29 2454495 2008-01-29 0 SVO
-11 3.7 2454831 2008-12-30 2454825 2008-12-24 6 SVO
-10 3.5 2455165 2009-11-29 2455155 2009-11-19 10 SVO
-9 3.2 2455498 2010-10-28 2455485 2010-10-15 13 SVO
-8 2.9 2455819 2011-09-14 2455815 2011-09-10 4 SVO
-7 3.5 2456158 2012-08-18 2456146 2012-08-06 12 SVO
-6 3.0 2456487 2013-07-13 2456476 2013-07-02 11 SVO
-5 3.5 2456818 2014-06-09 2456806 2014-05-28 12 SVO
-4 3.5 2457154 2015-05-11 2457136 2015-04-23 18 SVO
-3 3.5 2457472 2016-03-24 2457466 2016-03-18 6 SVO
-2 3.7 2457809 2017-02-24 2457797 2017-02-12 12 SVO
-1 3.4 2458140 2018-01-21 2458127 2018-01-08 13 SVO
0 3.9 2458466 2018-12-13 2458457 2018-12-04 9 SVO
1 3.0 2458788 2019-10-31 2458787 2019-10-30 1 SVO
2 3.3 2459122 2020-09-29 2459117 2020-09-24 5 SVO
3 2.8 2459433 2021-08-06 2459448 2021-08-21 -15 SVO
4 3.4 2459772 2022-07-11 2459778 2022-07-17 -6 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.