| - Revision: |
$Rev: 1216 $ |
|
| - Report created: |
2025-07-11 18:04:18 |
| WDS: | STF1527 | WDS ID/Discoverer |
| P: | 415.000 | Orbital period (years) |
| a: | 2.225 | Semi-major axis (arcseconds) |
| i: | 55.6 | Inclination (degrees) |
| Ω: | 188.0 | Longitude of ascending node (degrees) |
| T: | 2010.503 | Epoch of periastron passage (year) |
| e: | 0.8511 | Eccentricity |
| ω: | 0.5 | Longitude of periastron (degrees) |
| Start-Year: | 1818.0 | Year |
| End-Year: | 2232.0 | Year |
| Epoch: | 2025.0 | Besselian Epoch |
| Position: | 111859.91+141606.9 | Epoch-2000 right ascension and declination |
| WDS-ID: | 11190+1416 | WDS designation |
| Discoverer Code: | STF1527 | Discover designation and components |
| ADS number: | 8128 | Aitken Double Star catalog |
| HD number: | 98354 | HD catalog number |
| Hipparcos number: | 55254 | Hipparcos catalog number |
| V1: | 7.01 | Magnitude of the primary |
| V2: | 7.99 | Magnitude of the secondary |
| Equinox: | 2000 | Equinox |
| Date: | 2012 | Date of last observation |
| Orbit grade: | 3 | Orbit grade, ranging from 1 'definitive' to 5 'indeterminate' |
| Flags: | n | Flags |
Image from the USNO WDS 6th Orbit Catalog (see Acknowledgements)
Year Sep[“] PA[°] --------------------------------------------- 2025.0 0.686 320.9 ------------------------- 1818.0 4.102 9.4 1819.0 4.100 9.5 1820.0 4.097 9.6 1821.0 4.095 9.6 1822.0 4.092 9.7 1823.0 4.089 9.8 1824.0 4.086 9.9 1825.0 4.083 9.9 1826.0 4.080 10.0 1827.0 4.076 10.1 1828.0 4.073 10.2 1829.0 4.069 10.3 1830.0 4.065 10.3 1831.0 4.061 10.4 1832.0 4.057 10.5 1833.0 4.053 10.6 1834.0 4.048 10.6 1835.0 4.044 10.7 1836.0 4.039 10.8 1837.0 4.034 10.9 1838.0 4.029 10.9 1839.0 4.024 11.0 1840.0 4.019 11.1 1841.0 4.013 11.2 1842.0 4.008 11.3 1843.0 4.002 11.3 1844.0 3.996 11.4 1845.0 3.990 11.5 1846.0 3.984 11.6 1847.0 3.978 11.7 1848.0 3.971 11.7 1849.0 3.965 11.8 1850.0 3.958 11.9 1851.0 3.951 12.0 1852.0 3.944 12.1 1853.0 3.937 12.2 1854.0 3.929 12.2 1855.0 3.922 12.3 1856.0 3.914 12.4 1857.0 3.906 12.5 1858.0 3.898 12.6 1859.0 3.890 12.7 1860.0 3.882 12.7 1861.0 3.873 12.8 1862.0 3.864 12.9 1863.0 3.856 13.0 1864.0 3.847 13.1 1865.0 3.838 13.2 1866.0 3.828 13.3 1867.0 3.819 13.3 1868.0 3.809 13.4 1869.0 3.800 13.5 1870.0 3.790 13.6 1871.0 3.780 13.7 1872.0 3.770 13.8 1873.0 3.759 13.9 1874.0 3.749 14.0 1875.0 3.738 14.1 1876.0 3.727 14.1 1877.0 3.716 14.2 1878.0 3.705 14.3 1879.0 3.693 14.4 1880.0 3.682 14.5 1881.0 3.670 14.6 1882.0 3.658 14.7 1883.0 3.646 14.8 1884.0 3.634 14.9 1885.0 3.622 15.0 1886.0 3.609 15.1 1887.0 3.596 15.2 1888.0 3.583 15.3 1889.0 3.570 15.4 1890.0 3.557 15.5 1891.0 3.544 15.6 1892.0 3.530 15.7 1893.0 3.516 15.8 1894.0 3.502 15.9 1895.0 3.488 16.0 1896.0 3.474 16.1 1897.0 3.459 16.2 1898.0 3.444 16.3 1899.0 3.429 16.4 1900.0 3.414 16.5 1901.0 3.399 16.6 1902.0 3.384 16.8 1903.0 3.368 16.9 1904.0 3.352 17.0 1905.0 3.336 17.1 1906.0 3.320 17.2 1907.0 3.303 17.3 1908.0 3.287 17.4 1909.0 3.270 17.6 1910.0 3.253 17.7 1911.0 3.235 17.8 1912.0 3.218 17.9 1913.0 3.200 18.0 1914.0 3.182 18.2 1915.0 3.164 18.3 1916.0 3.146 18.4 1917.0 3.127 18.6 1918.0 3.109 18.7 1919.0 3.090 18.8 1920.0 3.071 19.0 1921.0 3.051 19.1 1922.0 3.032 19.2 1923.0 3.012 19.4 1924.0 2.992 19.5 1925.0 2.971 19.7 1926.0 2.951 19.8 1927.0 2.930 19.9 1928.0 2.909 20.1 1929.0 2.888 20.2 1930.0 2.866 20.4 1931.0 2.844 20.6 1932.0 2.822 20.7 1933.0 2.800 20.9 1934.0 2.778 21.0 1935.0 2.755 21.2 1936.0 2.732 21.4 1937.0 2.709 21.5 1938.0 2.685 21.7 1939.0 2.661 21.9 1940.0 2.637 22.1 1941.0 2.613 22.3 1942.0 2.588 22.5 1943.0 2.563 22.6 1944.0 2.538 22.8 1945.0 2.512 23.0 1946.0 2.487 23.2 1947.0 2.460 23.5 1948.0 2.434 23.7 1949.0 2.407 23.9 1950.0 2.380 24.1 1951.0 2.353 24.3 1952.0 2.325 24.6 1953.0 2.297 24.8 1954.0 2.269 25.0 1955.0 2.240 25.3 1956.0 2.211 25.6 1957.0 2.182 25.8 1958.0 2.152 26.1 1959.0 2.122 26.4 1960.0 2.091 26.7 1961.0 2.061 27.0 1962.0 2.029 27.3 1963.0 1.998 27.6 1964.0 1.966 27.9 1965.0 1.933 28.2 1966.0 1.901 28.6 1967.0 1.867 28.9 1968.0 1.834 29.3 1969.0 1.799 29.7 1970.0 1.765 30.1 1971.0 1.730 30.5 1972.0 1.694 30.9 1973.0 1.658 31.4 1974.0 1.622 31.9 1975.0 1.585 32.4 1976.0 1.548 32.9 1977.0 1.510 33.4 1978.0 1.471 34.0 1979.0 1.432 34.6 1980.0 1.393 35.3 1981.0 1.352 35.9 1982.0 1.312 36.6 1983.0 1.270 37.4 1984.0 1.228 38.2 1985.0 1.186 39.1 1986.0 1.143 40.0 1987.0 1.099 41.1 1988.0 1.055 42.2 1989.0 1.010 43.3 1990.0 0.964 44.7 1991.0 0.918 46.1 1992.0 0.871 47.7 1993.0 0.824 49.5 1994.0 0.776 51.5 1995.0 0.727 53.7 1996.0 0.679 56.3 1997.0 0.630 59.3 1998.0 0.582 62.8 1999.0 0.534 66.9 2000.0 0.487 71.8 2001.0 0.442 77.7 2002.0 0.400 84.9 2003.0 0.363 93.7 2004.0 0.333 104.3 2005.0 0.312 116.7 2006.0 0.302 130.3 2007.0 0.303 144.3 2008.0 0.311 157.9 2009.0 0.323 170.5 2010.0 0.330 182.4 2011.0 0.330 194.1 2012.0 0.321 206.1 2013.0 0.309 218.9 2014.0 0.299 232.8 2015.0 0.299 247.1 2016.0 0.310 260.9 2017.0 0.332 273.4 2018.0 0.363 284.0 2019.0 0.402 292.7 2020.0 0.445 299.9 2021.0 0.491 305.7 2022.0 0.538 310.5 2023.0 0.587 314.6 2024.0 0.636 318.0 2025.0 0.686 320.9 2026.0 0.735 323.4 2027.0 0.784 325.6 2028.0 0.832 327.6 2029.0 0.880 329.3 2030.0 0.927 330.9 2031.0 0.973 332.3 2032.0 1.019 333.6 2033.0 1.065 334.8 2034.0 1.109 335.9 2035.0 1.153 336.8 2036.0 1.197 337.8 2037.0 1.239 338.6 2038.0 1.282 339.4 2039.0 1.323 340.2 2040.0 1.364 340.9 2041.0 1.404 341.6 2042.0 1.444 342.2 2043.0 1.483 342.8 2044.0 1.522 343.3 2045.0 1.560 343.9 2046.0 1.597 344.4 2047.0 1.634 344.9 2048.0 1.671 345.3 2049.0 1.707 345.8 2050.0 1.742 346.2 2051.0 1.778 346.6 2052.0 1.812 347.0 2053.0 1.846 347.4 2054.0 1.880 347.8 2055.0 1.913 348.1 2056.0 1.946 348.5 2057.0 1.979 348.8 2058.0 2.011 349.1 2059.0 2.042 349.4 2060.0 2.074 349.7 2061.0 2.104 350.0 2062.0 2.135 350.3 2063.0 2.165 350.6 2064.0 2.195 350.9 2065.0 2.224 351.1 2066.0 2.253 351.4 2067.0 2.282 351.6 2068.0 2.310 351.9 2069.0 2.338 352.1 2070.0 2.366 352.3 2071.0 2.393 352.5 2072.0 2.420 352.8 2073.0 2.447 353.0 2074.0 2.473 353.2 2075.0 2.499 353.4 2076.0 2.525 353.6 2077.0 2.551 353.8 2078.0 2.576 354.0 2079.0 2.601 354.2 2080.0 2.625 354.4 2081.0 2.650 354.6 2082.0 2.674 354.7 2083.0 2.698 354.9 2084.0 2.721 355.1 2085.0 2.744 355.3 2086.0 2.767 355.4 2087.0 2.790 355.6 2088.0 2.813 355.7 2089.0 2.835 355.9 2090.0 2.857 356.1 2091.0 2.878 356.2 2092.0 2.900 356.4 2093.0 2.921 356.5 2094.0 2.942 356.7 2095.0 2.963 356.8 2096.0 2.983 357.0 2097.0 3.004 357.1 2098.0 3.024 357.2 2099.0 3.043 357.4 2100.0 3.063 357.5 2101.0 3.082 357.7 2102.0 3.101 357.8 2103.0 3.120 357.9 2104.0 3.139 358.0 2105.0 3.157 358.2 2106.0 3.176 358.3 2107.0 3.194 358.4 2108.0 3.211 358.6 2109.0 3.229 358.7 2110.0 3.246 358.8 2111.0 3.264 358.9 2112.0 3.281 359.0 2113.0 3.297 359.2 2114.0 3.314 359.3 2115.0 3.330 359.4 2116.0 3.347 359.5 2117.0 3.363 359.6 2118.0 3.378 359.7 2119.0 3.394 359.8 2120.0 3.409 359.9 2121.0 3.425 0.1 2122.0 3.440 0.2 2123.0 3.454 0.3 2124.0 3.469 0.4 2125.0 3.483 0.5 2126.0 3.498 0.6 2127.0 3.512 0.7 2128.0 3.526 0.8 2129.0 3.539 0.9 2130.0 3.553 1.0 2131.0 3.566 1.1 2132.0 3.579 1.2 2133.0 3.592 1.3 2134.0 3.605 1.4 2135.0 3.618 1.5 2136.0 3.630 1.6 2137.0 3.643 1.7 2138.0 3.655 1.8 2139.0 3.667 1.9 2140.0 3.679 2.0 2141.0 3.690 2.1 2142.0 3.702 2.2 2143.0 3.713 2.3 2144.0 3.724 2.3 2145.0 3.735 2.4 2146.0 3.746 2.5 2147.0 3.756 2.6 2148.0 3.767 2.7 2149.0 3.777 2.8 2150.0 3.787 2.9 2151.0 3.797 3.0 2152.0 3.807 3.1 2153.0 3.817 3.1 2154.0 3.826 3.2 2155.0 3.835 3.3 2156.0 3.844 3.4 2157.0 3.853 3.5 2158.0 3.862 3.6 2159.0 3.871 3.7 2160.0 3.879 3.8 2161.0 3.888 3.8 2162.0 3.896 3.9 2163.0 3.904 4.0 2164.0 3.912 4.1 2165.0 3.920 4.2 2166.0 3.927 4.3 2167.0 3.935 4.3 2168.0 3.942 4.4 2169.0 3.949 4.5 2170.0 3.956 4.6 2171.0 3.963 4.7 2172.0 3.970 4.7 2173.0 3.976 4.8 2174.0 3.983 4.9 2175.0 3.989 5.0 2176.0 3.995 5.1 2177.0 4.001 5.1 2178.0 4.007 5.2 2179.0 4.012 5.3 2180.0 4.018 5.4 2181.0 4.023 5.5 2182.0 4.028 5.5 2183.0 4.033 5.6 2184.0 4.038 5.7 2185.0 4.043 5.8 2186.0 4.047 5.9 2187.0 4.052 5.9 2188.0 4.056 6.0 2189.0 4.060 6.1 2190.0 4.064 6.2 2191.0 4.068 6.2 2192.0 4.072 6.3 2193.0 4.076 6.4 2194.0 4.079 6.5 2195.0 4.082 6.5 2196.0 4.085 6.6 2197.0 4.088 6.7 2198.0 4.091 6.8 2199.0 4.094 6.8 2200.0 4.097 6.9 2201.0 4.099 7.0 2202.0 4.101 7.1 2203.0 4.103 7.2 2204.0 4.105 7.2 2205.0 4.107 7.3 2206.0 4.109 7.4 2207.0 4.111 7.5 2208.0 4.112 7.5 2209.0 4.113 7.6 2210.0 4.115 7.7 2211.0 4.116 7.8 2212.0 4.116 7.8 2213.0 4.117 7.9 2214.0 4.118 8.0 2215.0 4.118 8.1 2216.0 4.118 8.1 2217.0 4.119 8.2 2218.0 4.119 8.3 2219.0 4.118 8.4 2220.0 4.118 8.4 2221.0 4.118 8.5 2222.0 4.117 8.6 2223.0 4.117 8.7 2224.0 4.116 8.7 2225.0 4.115 8.8 2226.0 4.114 8.9 2227.0 4.112 9.0 2228.0 4.111 9.0 2229.0 4.109 9.1 2230.0 4.108 9.2 2231.0 4.106 9.3