| - Revision: |
$Rev: 1216 $ |
|
| - Report created: |
2025-07-11 19:04:47 |
| WDS: | STF2509 | WDS ID/Discoverer |
| P: | 627.000 | Orbital period (years) |
| a: | 1.345 | Semi-major axis (arcseconds) |
| i: | 101.2 | Inclination (degrees) |
| Ω: | 139.6 | Longitude of ascending node (degrees) |
| T: | 1737.000 | Epoch of periastron passage (year) |
| e: | 0.75 | Eccentricity |
| ω: | 325.4 | Longitude of periastron (degrees) |
| Start-Year: | 1712.0 | Year |
| End-Year: | 2338.0 | Year |
| Epoch: | 2025.0 | Besselian Epoch |
| Position: | 191653.09+631227.0 | Epoch-2000 right ascension and declination |
| WDS-ID: | 19169+6312 | WDS designation |
| Discoverer Code: | STF2509 | Discover designation and components |
| ADS number: | 12296 | Aitken Double Star catalog |
| HD number: | 181566 | HD catalog number |
| Hipparcos number: | 94760 | Hipparcos catalog number |
| V1: | 7.44 | Magnitude of the primary |
| V2: | 8.17 | Magnitude of the secondary |
| Equinox: | 2000 | Equinox |
| Date: | 2011 | Date of last observation |
| Orbit grade: | 4 | Orbit grade, ranging from 1 'definitive' to 5 'indeterminate' |
| Flags: | Flags |
Image from the USNO WDS 6th Orbit Catalog (see Acknowledgements)
Year Sep[“] PA[°] --------------------------------------------- 2025.0 1.873 328.2 ------------------------- 1712.0 0.405 306.1 1713.0 0.381 305.3 1714.0 0.356 304.3 1715.0 0.332 303.2 1716.0 0.307 301.8 1717.0 0.282 300.3 1718.0 0.257 298.5 1719.0 0.231 296.2 1720.0 0.206 293.4 1721.0 0.181 289.8 1722.0 0.156 285.1 1723.0 0.133 278.7 1724.0 0.112 269.7 1725.0 0.094 256.9 1726.0 0.082 239.4 1727.0 0.080 218.8 1728.0 0.088 199.5 1729.0 0.103 184.7 1730.0 0.123 174.1 1731.0 0.145 166.6 1732.0 0.169 161.2 1733.0 0.192 157.1 1734.0 0.215 153.8 1735.0 0.238 151.2 1736.0 0.259 149.1 1737.0 0.279 147.2 1738.0 0.298 145.6 1739.0 0.315 144.2 1740.0 0.330 142.9 1741.0 0.343 141.7 1742.0 0.354 140.6 1743.0 0.364 139.6 1744.0 0.372 138.6 1745.0 0.378 137.7 1746.0 0.382 136.7 1747.0 0.386 135.8 1748.0 0.388 135.0 1749.0 0.388 134.1 1750.0 0.388 133.2 1751.0 0.387 132.3 1752.0 0.384 131.4 1753.0 0.381 130.5 1754.0 0.378 129.6 1755.0 0.373 128.6 1756.0 0.368 127.6 1757.0 0.363 126.6 1758.0 0.357 125.6 1759.0 0.351 124.6 1760.0 0.345 123.4 1761.0 0.338 122.3 1762.0 0.331 121.1 1763.0 0.324 119.9 1764.0 0.316 118.6 1765.0 0.309 117.2 1766.0 0.302 115.8 1767.0 0.294 114.3 1768.0 0.287 112.7 1769.0 0.279 111.0 1770.0 0.272 109.2 1771.0 0.264 107.4 1772.0 0.257 105.4 1773.0 0.250 103.4 1774.0 0.244 101.2 1775.0 0.237 98.9 1776.0 0.231 96.4 1777.0 0.225 93.9 1778.0 0.220 91.2 1779.0 0.215 88.3 1780.0 0.210 85.4 1781.0 0.206 82.3 1782.0 0.203 79.1 1783.0 0.200 75.8 1784.0 0.197 72.4 1785.0 0.196 69.0 1786.0 0.195 65.5 1787.0 0.195 61.9 1788.0 0.195 58.4 1789.0 0.196 54.9 1790.0 0.198 51.5 1791.0 0.200 48.1 1792.0 0.203 44.8 1793.0 0.207 41.7 1794.0 0.211 38.6 1795.0 0.216 35.7 1796.0 0.221 32.9 1797.0 0.227 30.2 1798.0 0.233 27.7 1799.0 0.239 25.3 1800.0 0.246 23.0 1801.0 0.253 20.9 1802.0 0.261 18.9 1803.0 0.269 17.0 1804.0 0.277 15.2 1805.0 0.285 13.5 1806.0 0.293 11.9 1807.0 0.302 10.4 1808.0 0.311 9.0 1809.0 0.319 7.6 1810.0 0.328 6.3 1811.0 0.338 5.1 1812.0 0.347 4.0 1813.0 0.356 2.9 1814.0 0.365 1.9 1815.0 0.375 0.9 1816.0 0.384 360.0 1817.0 0.394 359.1 1818.0 0.404 358.3 1819.0 0.413 357.5 1820.0 0.423 356.7 1821.0 0.433 356.0 1822.0 0.442 355.3 1823.0 0.452 354.6 1824.0 0.462 354.0 1825.0 0.472 353.4 1826.0 0.481 352.8 1827.0 0.491 352.2 1828.0 0.501 351.7 1829.0 0.511 351.1 1830.0 0.521 350.6 1831.0 0.531 350.2 1832.0 0.540 349.7 1833.0 0.550 349.2 1834.0 0.560 348.8 1835.0 0.570 348.4 1836.0 0.579 348.0 1837.0 0.589 347.6 1838.0 0.599 347.2 1839.0 0.609 346.9 1840.0 0.618 346.5 1841.0 0.628 346.2 1842.0 0.638 345.8 1843.0 0.647 345.5 1844.0 0.657 345.2 1845.0 0.667 344.9 1846.0 0.676 344.6 1847.0 0.686 344.3 1848.0 0.695 344.0 1849.0 0.705 343.7 1850.0 0.714 343.5 1851.0 0.724 343.2 1852.0 0.733 343.0 1853.0 0.743 342.7 1854.0 0.752 342.5 1855.0 0.761 342.3 1856.0 0.771 342.0 1857.0 0.780 341.8 1858.0 0.789 341.6 1859.0 0.798 341.4 1860.0 0.808 341.2 1861.0 0.817 341.0 1862.0 0.826 340.8 1863.0 0.835 340.6 1864.0 0.844 340.4 1865.0 0.853 340.2 1866.0 0.862 340.0 1867.0 0.871 339.8 1868.0 0.880 339.7 1869.0 0.889 339.5 1870.0 0.898 339.3 1871.0 0.907 339.2 1872.0 0.916 339.0 1873.0 0.925 338.8 1874.0 0.933 338.7 1875.0 0.942 338.5 1876.0 0.951 338.4 1877.0 0.960 338.2 1878.0 0.968 338.1 1879.0 0.977 338.0 1880.0 0.985 337.8 1881.0 0.994 337.7 1882.0 1.002 337.6 1883.0 1.011 337.4 1884.0 1.019 337.3 1885.0 1.028 337.2 1886.0 1.036 337.0 1887.0 1.044 336.9 1888.0 1.053 336.8 1889.0 1.061 336.7 1890.0 1.069 336.6 1891.0 1.078 336.4 1892.0 1.086 336.3 1893.0 1.094 336.2 1894.0 1.102 336.1 1895.0 1.110 336.0 1896.0 1.118 335.9 1897.0 1.126 335.8 1898.0 1.134 335.7 1899.0 1.142 335.6 1900.0 1.150 335.5 1901.0 1.158 335.4 1902.0 1.166 335.3 1903.0 1.173 335.2 1904.0 1.181 335.1 1905.0 1.189 335.0 1906.0 1.197 334.9 1907.0 1.204 334.8 1908.0 1.212 334.7 1909.0 1.220 334.6 1910.0 1.227 334.5 1911.0 1.235 334.4 1912.0 1.242 334.4 1913.0 1.250 334.3 1914.0 1.257 334.2 1915.0 1.265 334.1 1916.0 1.272 334.0 1917.0 1.279 333.9 1918.0 1.287 333.9 1919.0 1.294 333.8 1920.0 1.301 333.7 1921.0 1.308 333.6 1922.0 1.315 333.5 1923.0 1.323 333.5 1924.0 1.330 333.4 1925.0 1.337 333.3 1926.0 1.344 333.2 1927.0 1.351 333.2 1928.0 1.358 333.1 1929.0 1.365 333.0 1930.0 1.372 332.9 1931.0 1.378 332.9 1932.0 1.385 332.8 1933.0 1.392 332.7 1934.0 1.399 332.7 1935.0 1.406 332.6 1936.0 1.412 332.5 1937.0 1.419 332.5 1938.0 1.426 332.4 1939.0 1.432 332.3 1940.0 1.439 332.3 1941.0 1.445 332.2 1942.0 1.452 332.1 1943.0 1.458 332.1 1944.0 1.465 332.0 1945.0 1.471 332.0 1946.0 1.477 331.9 1947.0 1.484 331.8 1948.0 1.490 331.8 1949.0 1.496 331.7 1950.0 1.502 331.7 1951.0 1.509 331.6 1952.0 1.515 331.5 1953.0 1.521 331.5 1954.0 1.527 331.4 1955.0 1.533 331.4 1956.0 1.539 331.3 1957.0 1.545 331.2 1958.0 1.551 331.2 1959.0 1.557 331.1 1960.0 1.563 331.1 1961.0 1.569 331.0 1962.0 1.574 331.0 1963.0 1.580 330.9 1964.0 1.586 330.9 1965.0 1.592 330.8 1966.0 1.597 330.8 1967.0 1.603 330.7 1968.0 1.609 330.7 1969.0 1.614 330.6 1970.0 1.620 330.6 1971.0 1.625 330.5 1972.0 1.631 330.5 1973.0 1.636 330.4 1974.0 1.642 330.4 1975.0 1.647 330.3 1976.0 1.652 330.3 1977.0 1.658 330.2 1978.0 1.663 330.2 1979.0 1.668 330.1 1980.0 1.673 330.1 1981.0 1.679 330.0 1982.0 1.684 330.0 1983.0 1.689 329.9 1984.0 1.694 329.9 1985.0 1.699 329.8 1986.0 1.704 329.8 1987.0 1.709 329.7 1988.0 1.714 329.7 1989.0 1.719 329.6 1990.0 1.724 329.6 1991.0 1.729 329.6 1992.0 1.733 329.5 1993.0 1.738 329.5 1994.0 1.743 329.4 1995.0 1.748 329.4 1996.0 1.752 329.3 1997.0 1.757 329.3 1998.0 1.762 329.2 1999.0 1.766 329.2 2000.0 1.771 329.2 2001.0 1.775 329.1 2002.0 1.780 329.1 2003.0 1.784 329.0 2004.0 1.788 329.0 2005.0 1.793 329.0 2006.0 1.797 328.9 2007.0 1.801 328.9 2008.0 1.806 328.8 2009.0 1.810 328.8 2010.0 1.814 328.7 2011.0 1.818 328.7 2012.0 1.822 328.7 2013.0 1.826 328.6 2014.0 1.831 328.6 2015.0 1.835 328.5 2016.0 1.839 328.5 2017.0 1.843 328.5 2018.0 1.846 328.4 2019.0 1.850 328.4 2020.0 1.854 328.4 2021.0 1.858 328.3 2022.0 1.862 328.3 2023.0 1.865 328.2 2024.0 1.869 328.2 2025.0 1.873 328.2 2026.0 1.877 328.1 2027.0 1.880 328.1 2028.0 1.884 328.0 2029.0 1.887 328.0 2030.0 1.891 328.0 2031.0 1.894 327.9 2032.0 1.898 327.9 2033.0 1.901 327.9 2034.0 1.904 327.8 2035.0 1.908 327.8 2036.0 1.911 327.7 2037.0 1.914 327.7 2038.0 1.917 327.7 2039.0 1.921 327.6 2040.0 1.924 327.6 2041.0 1.927 327.6 2042.0 1.930 327.5 2043.0 1.933 327.5 2044.0 1.936 327.5 2045.0 1.939 327.4 2046.0 1.942 327.4 2047.0 1.945 327.4 2048.0 1.948 327.3 2049.0 1.951 327.3 2050.0 1.953 327.2 2051.0 1.956 327.2 2052.0 1.959 327.2 2053.0 1.962 327.1 2054.0 1.964 327.1 2055.0 1.967 327.1 2056.0 1.969 327.0 2057.0 1.972 327.0 2058.0 1.974 327.0 2059.0 1.977 326.9 2060.0 1.979 326.9 2061.0 1.982 326.9 2062.0 1.984 326.8 2063.0 1.986 326.8 2064.0 1.989 326.8 2065.0 1.991 326.7 2066.0 1.993 326.7 2067.0 1.995 326.7 2068.0 1.998 326.6 2069.0 2.000 326.6 2070.0 2.002 326.6 2071.0 2.004 326.5 2072.0 2.006 326.5 2073.0 2.008 326.5 2074.0 2.010 326.4 2075.0 2.011 326.4 2076.0 2.013 326.4 2077.0 2.015 326.3 2078.0 2.017 326.3 2079.0 2.019 326.3 2080.0 2.020 326.2 2081.0 2.022 326.2 2082.0 2.024 326.2 2083.0 2.025 326.1 2084.0 2.027 326.1 2085.0 2.028 326.1 2086.0 2.030 326.0 2087.0 2.031 326.0 2088.0 2.032 326.0 2089.0 2.034 325.9 2090.0 2.035 325.9 2091.0 2.036 325.9 2092.0 2.038 325.8 2093.0 2.039 325.8 2094.0 2.040 325.8 2095.0 2.041 325.8 2096.0 2.042 325.7 2097.0 2.043 325.7 2098.0 2.044 325.7 2099.0 2.045 325.6 2100.0 2.046 325.6 2101.0 2.047 325.6 2102.0 2.048 325.5 2103.0 2.049 325.5 2104.0 2.049 325.5 2105.0 2.050 325.4 2106.0 2.051 325.4 2107.0 2.051 325.4 2108.0 2.052 325.3 2109.0 2.052 325.3 2110.0 2.053 325.3 2111.0 2.053 325.2 2112.0 2.054 325.2 2113.0 2.054 325.2 2114.0 2.055 325.1 2115.0 2.055 325.1 2116.0 2.055 325.1 2117.0 2.055 325.1 2118.0 2.056 325.0 2119.0 2.056 325.0 2120.0 2.056 325.0 2121.0 2.056 324.9 2122.0 2.056 324.9 2123.0 2.056 324.9 2124.0 2.056 324.8 2125.0 2.056 324.8 2126.0 2.056 324.8 2127.0 2.055 324.7 2128.0 2.055 324.7 2129.0 2.055 324.7 2130.0 2.055 324.6 2131.0 2.054 324.6 2132.0 2.054 324.6 2133.0 2.053 324.5 2134.0 2.053 324.5 2135.0 2.052 324.5 2136.0 2.052 324.5 2137.0 2.051 324.4 2138.0 2.050 324.4 2139.0 2.050 324.4 2140.0 2.049 324.3 2141.0 2.048 324.3 2142.0 2.047 324.3 2143.0 2.046 324.2 2144.0 2.045 324.2 2145.0 2.044 324.2 2146.0 2.043 324.1 2147.0 2.042 324.1 2148.0 2.041 324.1 2149.0 2.040 324.0 2150.0 2.039 324.0 2151.0 2.037 324.0 2152.0 2.036 323.9 2153.0 2.035 323.9 2154.0 2.033 323.9 2155.0 2.032 323.8 2156.0 2.030 323.8 2157.0 2.029 323.8 2158.0 2.027 323.7 2159.0 2.025 323.7 2160.0 2.024 323.7 2161.0 2.022 323.7 2162.0 2.020 323.6 2163.0 2.018 323.6 2164.0 2.016 323.6 2165.0 2.014 323.5 2166.0 2.012 323.5 2167.0 2.010 323.5 2168.0 2.008 323.4 2169.0 2.006 323.4 2170.0 2.004 323.4 2171.0 2.002 323.3 2172.0 1.999 323.3 2173.0 1.997 323.3 2174.0 1.994 323.2 2175.0 1.992 323.2 2176.0 1.989 323.2 2177.0 1.987 323.1 2178.0 1.984 323.1 2179.0 1.982 323.1 2180.0 1.979 323.0 2181.0 1.976 323.0 2182.0 1.973 323.0 2183.0 1.970 322.9 2184.0 1.967 322.9 2185.0 1.964 322.8 2186.0 1.961 322.8 2187.0 1.958 322.8 2188.0 1.955 322.7 2189.0 1.952 322.7 2190.0 1.948 322.7 2191.0 1.945 322.6 2192.0 1.942 322.6 2193.0 1.938 322.6 2194.0 1.935 322.5 2195.0 1.931 322.5 2196.0 1.927 322.5 2197.0 1.924 322.4 2198.0 1.920 322.4 2199.0 1.916 322.4 2200.0 1.912 322.3 2201.0 1.908 322.3 2202.0 1.904 322.2 2203.0 1.900 322.2 2204.0 1.896 322.2 2205.0 1.892 322.1 2206.0 1.888 322.1 2207.0 1.883 322.1 2208.0 1.879 322.0 2209.0 1.875 322.0 2210.0 1.870 321.9 2211.0 1.866 321.9 2212.0 1.861 321.9 2213.0 1.856 321.8 2214.0 1.851 321.8 2215.0 1.847 321.7 2216.0 1.842 321.7 2217.0 1.837 321.7 2218.0 1.832 321.6 2219.0 1.827 321.6 2220.0 1.821 321.6 2221.0 1.816 321.5 2222.0 1.811 321.5 2223.0 1.806 321.4 2224.0 1.800 321.4 2225.0 1.795 321.3 2226.0 1.789 321.3 2227.0 1.783 321.3 2228.0 1.778 321.2 2229.0 1.772 321.2 2230.0 1.766 321.1 2231.0 1.760 321.1 2232.0 1.754 321.0 2233.0 1.748 321.0 2234.0 1.742 321.0 2235.0 1.735 320.9 2236.0 1.729 320.9 2237.0 1.722 320.8 2238.0 1.716 320.8 2239.0 1.709 320.7 2240.0 1.703 320.7 2241.0 1.696 320.6 2242.0 1.689 320.6 2243.0 1.682 320.6 2244.0 1.675 320.5 2245.0 1.668 320.5 2246.0 1.661 320.4 2247.0 1.654 320.4 2248.0 1.646 320.3 2249.0 1.639 320.3 2250.0 1.631 320.2 2251.0 1.624 320.2 2252.0 1.616 320.1 2253.0 1.608 320.1 2254.0 1.600 320.0 2255.0 1.592 320.0 2256.0 1.584 319.9 2257.0 1.576 319.8 2258.0 1.568 319.8 2259.0 1.559 319.7 2260.0 1.551 319.7 2261.0 1.542 319.6 2262.0 1.534 319.6 2263.0 1.525 319.5 2264.0 1.516 319.5 2265.0 1.507 319.4 2266.0 1.498 319.3 2267.0 1.489 319.3 2268.0 1.479 319.2 2269.0 1.470 319.2 2270.0 1.460 319.1 2271.0 1.451 319.0 2272.0 1.441 319.0 2273.0 1.431 318.9 2274.0 1.421 318.8 2275.0 1.411 318.8 2276.0 1.401 318.7 2277.0 1.391 318.6 2278.0 1.380 318.6 2279.0 1.369 318.5 2280.0 1.359 318.4 2281.0 1.348 318.4 2282.0 1.337 318.3 2283.0 1.326 318.2 2284.0 1.315 318.1 2285.0 1.303 318.0 2286.0 1.292 318.0 2287.0 1.280 317.9 2288.0 1.268 317.8 2289.0 1.256 317.7 2290.0 1.244 317.6 2291.0 1.232 317.6 2292.0 1.220 317.5 2293.0 1.207 317.4 2294.0 1.194 317.3 2295.0 1.181 317.2 2296.0 1.168 317.1 2297.0 1.155 317.0 2298.0 1.142 316.9 2299.0 1.128 316.8 2300.0 1.115 316.7 2301.0 1.101 316.6 2302.0 1.087 316.5 2303.0 1.073 316.3 2304.0 1.058 316.2 2305.0 1.044 316.1 2306.0 1.029 316.0 2307.0 1.014 315.9 2308.0 0.999 315.7 2309.0 0.983 315.6 2310.0 0.968 315.4 2311.0 0.952 315.3 2312.0 0.936 315.1 2313.0 0.920 315.0 2314.0 0.903 314.8 2315.0 0.887 314.7 2316.0 0.870 314.5 2317.0 0.853 314.3 2318.0 0.835 314.1 2319.0 0.818 313.9 2320.0 0.800 313.7 2321.0 0.782 313.5 2322.0 0.763 313.3 2323.0 0.744 313.1 2324.0 0.725 312.8 2325.0 0.706 312.5 2326.0 0.687 312.3 2327.0 0.667 312.0 2328.0 0.647 311.7 2329.0 0.626 311.3 2330.0 0.606 311.0 2331.0 0.585 310.6 2332.0 0.563 310.2 2333.0 0.542 309.8 2334.0 0.520 309.3 2335.0 0.497 308.8 2336.0 0.475 308.2 2337.0 0.452 307.6