| - Revision: |
$Rev: 1216 $ |
|
| - Report created: |
2025-07-11 16:35:33 |
| WDS: | STF257 | WDS ID/Discoverer |
| P: | 557.000 | Orbital period (years) |
| a: | 0.621 | Semi-major axis (arcseconds) |
| i: | 43.8 | Inclination (degrees) |
| Ω: | 142.4 | Longitude of ascending node (degrees) |
| T: | 1934.000 | Epoch of periastron passage (year) |
| e: | 0.588 | Eccentricity |
| ω: | 165.8 | Longitude of periastron (degrees) |
| Start-Year: | 1747.0 | Year |
| End-Year: | 2303.0 | Year |
| Epoch: | 2025.0 | Besselian Epoch |
| Position: | 022540.12+613258.8 | Epoch-2000 right ascension and declination |
| WDS-ID: | 02257+6133 | WDS designation |
| Discoverer Code: | STF257 | Discover designation and components |
| ADS number: | 1833 | Aitken Double Star catalog |
| HD number: | 14817 | HD catalog number |
| Hipparcos number: | 11318 | Hipparcos catalog number |
| V1: | 7.51 | Magnitude of the primary |
| V2: | 8.16 | Magnitude of the secondary |
| Equinox: | 2000 | Equinox |
| Date: | 2007 | 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 0.493 83.8 ------------------------- 1747.0 0.905 146.6 1748.0 0.903 146.8 1749.0 0.901 147.0 1750.0 0.899 147.2 1751.0 0.897 147.3 1752.0 0.895 147.5 1753.0 0.893 147.7 1754.0 0.891 147.9 1755.0 0.889 148.1 1756.0 0.887 148.3 1757.0 0.885 148.4 1758.0 0.882 148.6 1759.0 0.880 148.8 1760.0 0.878 149.0 1761.0 0.876 149.2 1762.0 0.873 149.4 1763.0 0.871 149.6 1764.0 0.868 149.8 1765.0 0.866 150.0 1766.0 0.864 150.2 1767.0 0.861 150.4 1768.0 0.859 150.5 1769.0 0.856 150.7 1770.0 0.853 150.9 1771.0 0.851 151.1 1772.0 0.848 151.3 1773.0 0.845 151.5 1774.0 0.843 151.8 1775.0 0.840 152.0 1776.0 0.837 152.2 1777.0 0.834 152.4 1778.0 0.832 152.6 1779.0 0.829 152.8 1780.0 0.826 153.0 1781.0 0.823 153.2 1782.0 0.820 153.4 1783.0 0.817 153.7 1784.0 0.814 153.9 1785.0 0.811 154.1 1786.0 0.808 154.3 1787.0 0.805 154.5 1788.0 0.802 154.8 1789.0 0.798 155.0 1790.0 0.795 155.2 1791.0 0.792 155.5 1792.0 0.789 155.7 1793.0 0.785 155.9 1794.0 0.782 156.2 1795.0 0.779 156.4 1796.0 0.775 156.6 1797.0 0.772 156.9 1798.0 0.768 157.1 1799.0 0.765 157.4 1800.0 0.761 157.6 1801.0 0.758 157.9 1802.0 0.754 158.1 1803.0 0.751 158.4 1804.0 0.747 158.6 1805.0 0.743 158.9 1806.0 0.739 159.2 1807.0 0.736 159.4 1808.0 0.732 159.7 1809.0 0.728 160.0 1810.0 0.724 160.3 1811.0 0.720 160.5 1812.0 0.716 160.8 1813.0 0.712 161.1 1814.0 0.708 161.4 1815.0 0.704 161.7 1816.0 0.700 162.0 1817.0 0.696 162.3 1818.0 0.692 162.6 1819.0 0.688 162.9 1820.0 0.683 163.2 1821.0 0.679 163.5 1822.0 0.675 163.8 1823.0 0.671 164.2 1824.0 0.666 164.5 1825.0 0.662 164.8 1826.0 0.657 165.1 1827.0 0.653 165.5 1828.0 0.648 165.8 1829.0 0.644 166.2 1830.0 0.639 166.5 1831.0 0.635 166.9 1832.0 0.630 167.2 1833.0 0.625 167.6 1834.0 0.621 168.0 1835.0 0.616 168.4 1836.0 0.611 168.8 1837.0 0.606 169.2 1838.0 0.601 169.6 1839.0 0.597 170.0 1840.0 0.592 170.4 1841.0 0.587 170.8 1842.0 0.582 171.2 1843.0 0.577 171.7 1844.0 0.572 172.1 1845.0 0.566 172.5 1846.0 0.561 173.0 1847.0 0.556 173.5 1848.0 0.551 173.9 1849.0 0.546 174.4 1850.0 0.540 174.9 1851.0 0.535 175.4 1852.0 0.530 175.9 1853.0 0.524 176.5 1854.0 0.519 177.0 1855.0 0.514 177.5 1856.0 0.508 178.1 1857.0 0.503 178.7 1858.0 0.497 179.2 1859.0 0.492 179.8 1860.0 0.486 180.5 1861.0 0.480 181.1 1862.0 0.475 181.7 1863.0 0.469 182.4 1864.0 0.464 183.0 1865.0 0.458 183.7 1866.0 0.452 184.4 1867.0 0.446 185.1 1868.0 0.441 185.9 1869.0 0.435 186.6 1870.0 0.429 187.4 1871.0 0.423 188.2 1872.0 0.418 189.0 1873.0 0.412 189.9 1874.0 0.406 190.8 1875.0 0.400 191.7 1876.0 0.394 192.6 1877.0 0.388 193.5 1878.0 0.383 194.5 1879.0 0.377 195.5 1880.0 0.371 196.6 1881.0 0.365 197.6 1882.0 0.360 198.7 1883.0 0.354 199.9 1884.0 0.348 201.1 1885.0 0.343 202.3 1886.0 0.337 203.6 1887.0 0.331 204.9 1888.0 0.326 206.2 1889.0 0.320 207.6 1890.0 0.315 209.0 1891.0 0.310 210.5 1892.0 0.305 212.1 1893.0 0.299 213.7 1894.0 0.294 215.3 1895.0 0.289 217.0 1896.0 0.285 218.8 1897.0 0.280 220.6 1898.0 0.276 222.5 1899.0 0.271 224.5 1900.0 0.267 226.5 1901.0 0.263 228.5 1902.0 0.259 230.7 1903.0 0.256 232.9 1904.0 0.252 235.1 1905.0 0.249 237.4 1906.0 0.246 239.8 1907.0 0.243 242.3 1908.0 0.241 244.7 1909.0 0.239 247.3 1910.0 0.237 249.8 1911.0 0.235 252.5 1912.0 0.234 255.1 1913.0 0.232 257.8 1914.0 0.232 260.5 1915.0 0.231 263.2 1916.0 0.231 266.0 1917.0 0.231 268.7 1918.0 0.231 271.4 1919.0 0.231 274.2 1920.0 0.232 276.9 1921.0 0.232 279.6 1922.0 0.233 282.3 1923.0 0.235 284.9 1924.0 0.236 287.5 1925.0 0.237 290.1 1926.0 0.239 292.7 1927.0 0.240 295.2 1928.0 0.242 297.8 1929.0 0.244 300.2 1930.0 0.245 302.6 1931.0 0.247 305.0 1932.0 0.249 307.4 1933.0 0.251 309.7 1934.0 0.252 312.0 1935.0 0.254 314.3 1936.0 0.255 316.6 1937.0 0.257 318.8 1938.0 0.258 321.0 1939.0 0.259 323.2 1940.0 0.260 325.3 1941.0 0.261 327.5 1942.0 0.263 329.6 1943.0 0.263 331.7 1944.0 0.264 333.8 1945.0 0.265 335.9 1946.0 0.266 337.9 1947.0 0.267 340.0 1948.0 0.267 342.0 1949.0 0.268 344.0 1950.0 0.268 346.1 1951.0 0.269 348.1 1952.0 0.270 350.1 1953.0 0.270 352.1 1954.0 0.271 354.1 1955.0 0.272 356.0 1956.0 0.272 358.0 1957.0 0.273 360.0 1958.0 0.274 1.9 1959.0 0.275 3.9 1960.0 0.276 5.8 1961.0 0.277 7.7 1962.0 0.278 9.6 1963.0 0.279 11.5 1964.0 0.280 13.3 1965.0 0.281 15.2 1966.0 0.283 17.0 1967.0 0.284 18.8 1968.0 0.286 20.6 1969.0 0.288 22.4 1970.0 0.290 24.1 1971.0 0.292 25.8 1972.0 0.294 27.5 1973.0 0.296 29.2 1974.0 0.298 30.9 1975.0 0.300 32.5 1976.0 0.303 34.1 1977.0 0.305 35.7 1978.0 0.308 37.2 1979.0 0.311 38.7 1980.0 0.314 40.2 1981.0 0.317 41.7 1982.0 0.320 43.1 1983.0 0.323 44.5 1984.0 0.326 45.9 1985.0 0.329 47.3 1986.0 0.332 48.6 1987.0 0.336 49.9 1988.0 0.339 51.2 1989.0 0.343 52.4 1990.0 0.346 53.7 1991.0 0.350 54.9 1992.0 0.354 56.0 1993.0 0.358 57.2 1994.0 0.361 58.3 1995.0 0.365 59.4 1996.0 0.369 60.5 1997.0 0.373 61.6 1998.0 0.377 62.6 1999.0 0.381 63.6 2000.0 0.385 64.6 2001.0 0.389 65.6 2002.0 0.393 66.5 2003.0 0.398 67.5 2004.0 0.402 68.4 2005.0 0.406 69.3 2006.0 0.410 70.1 2007.0 0.414 71.0 2008.0 0.419 71.8 2009.0 0.423 72.6 2010.0 0.427 73.4 2011.0 0.432 74.2 2012.0 0.436 75.0 2013.0 0.440 75.8 2014.0 0.445 76.5 2015.0 0.449 77.2 2016.0 0.453 78.0 2017.0 0.458 78.7 2018.0 0.462 79.3 2019.0 0.467 80.0 2020.0 0.471 80.7 2021.0 0.475 81.3 2022.0 0.480 82.0 2023.0 0.484 82.6 2024.0 0.488 83.2 2025.0 0.493 83.8 2026.0 0.497 84.4 2027.0 0.502 85.0 2028.0 0.506 85.6 2029.0 0.510 86.1 2030.0 0.515 86.7 2031.0 0.519 87.2 2032.0 0.523 87.8 2033.0 0.528 88.3 2034.0 0.532 88.8 2035.0 0.536 89.3 2036.0 0.540 89.8 2037.0 0.545 90.3 2038.0 0.549 90.8 2039.0 0.553 91.3 2040.0 0.557 91.8 2041.0 0.562 92.2 2042.0 0.566 92.7 2043.0 0.570 93.1 2044.0 0.574 93.6 2045.0 0.578 94.0 2046.0 0.583 94.4 2047.0 0.587 94.9 2048.0 0.591 95.3 2049.0 0.595 95.7 2050.0 0.599 96.1 2051.0 0.603 96.5 2052.0 0.607 96.9 2053.0 0.611 97.3 2054.0 0.615 97.7 2055.0 0.619 98.1 2056.0 0.623 98.5 2057.0 0.627 98.8 2058.0 0.631 99.2 2059.0 0.635 99.6 2060.0 0.639 99.9 2061.0 0.643 100.3 2062.0 0.647 100.6 2063.0 0.650 101.0 2064.0 0.654 101.3 2065.0 0.658 101.6 2066.0 0.662 102.0 2067.0 0.665 102.3 2068.0 0.669 102.6 2069.0 0.673 103.0 2070.0 0.677 103.3 2071.0 0.680 103.6 2072.0 0.684 103.9 2073.0 0.688 104.2 2074.0 0.691 104.5 2075.0 0.695 104.8 2076.0 0.698 105.1 2077.0 0.702 105.4 2078.0 0.705 105.7 2079.0 0.709 106.0 2080.0 0.712 106.3 2081.0 0.716 106.6 2082.0 0.719 106.9 2083.0 0.723 107.1 2084.0 0.726 107.4 2085.0 0.730 107.7 2086.0 0.733 108.0 2087.0 0.736 108.2 2088.0 0.740 108.5 2089.0 0.743 108.8 2090.0 0.746 109.0 2091.0 0.749 109.3 2092.0 0.753 109.6 2093.0 0.756 109.8 2094.0 0.759 110.1 2095.0 0.762 110.3 2096.0 0.765 110.6 2097.0 0.768 110.8 2098.0 0.771 111.1 2099.0 0.774 111.3 2100.0 0.777 111.5 2101.0 0.780 111.8 2102.0 0.783 112.0 2103.0 0.786 112.3 2104.0 0.789 112.5 2105.0 0.792 112.7 2106.0 0.795 113.0 2107.0 0.798 113.2 2108.0 0.801 113.4 2109.0 0.804 113.6 2110.0 0.807 113.9 2111.0 0.809 114.1 2112.0 0.812 114.3 2113.0 0.815 114.5 2114.0 0.818 114.7 2115.0 0.820 115.0 2116.0 0.823 115.2 2117.0 0.826 115.4 2118.0 0.828 115.6 2119.0 0.831 115.8 2120.0 0.833 116.0 2121.0 0.836 116.2 2122.0 0.839 116.4 2123.0 0.841 116.6 2124.0 0.844 116.9 2125.0 0.846 117.1 2126.0 0.848 117.3 2127.0 0.851 117.5 2128.0 0.853 117.7 2129.0 0.856 117.9 2130.0 0.858 118.1 2131.0 0.860 118.3 2132.0 0.863 118.5 2133.0 0.865 118.6 2134.0 0.867 118.8 2135.0 0.869 119.0 2136.0 0.872 119.2 2137.0 0.874 119.4 2138.0 0.876 119.6 2139.0 0.878 119.8 2140.0 0.880 120.0 2141.0 0.882 120.2 2142.0 0.884 120.4 2143.0 0.886 120.5 2144.0 0.888 120.7 2145.0 0.890 120.9 2146.0 0.892 121.1 2147.0 0.894 121.3 2148.0 0.896 121.5 2149.0 0.898 121.6 2150.0 0.900 121.8 2151.0 0.902 122.0 2152.0 0.904 122.2 2153.0 0.906 122.4 2154.0 0.907 122.5 2155.0 0.909 122.7 2156.0 0.911 122.9 2157.0 0.913 123.1 2158.0 0.914 123.2 2159.0 0.916 123.4 2160.0 0.918 123.6 2161.0 0.919 123.8 2162.0 0.921 123.9 2163.0 0.923 124.1 2164.0 0.924 124.3 2165.0 0.926 124.4 2166.0 0.927 124.6 2167.0 0.929 124.8 2168.0 0.930 124.9 2169.0 0.932 125.1 2170.0 0.933 125.3 2171.0 0.934 125.4 2172.0 0.936 125.6 2173.0 0.937 125.8 2174.0 0.938 125.9 2175.0 0.940 126.1 2176.0 0.941 126.3 2177.0 0.942 126.4 2178.0 0.944 126.6 2179.0 0.945 126.8 2180.0 0.946 126.9 2181.0 0.947 127.1 2182.0 0.948 127.3 2183.0 0.949 127.4 2184.0 0.950 127.6 2185.0 0.952 127.7 2186.0 0.953 127.9 2187.0 0.954 128.1 2188.0 0.955 128.2 2189.0 0.956 128.4 2190.0 0.957 128.5 2191.0 0.957 128.7 2192.0 0.958 128.9 2193.0 0.959 129.0 2194.0 0.960 129.2 2195.0 0.961 129.3 2196.0 0.962 129.5 2197.0 0.963 129.6 2198.0 0.963 129.8 2199.0 0.964 130.0 2200.0 0.965 130.1 2201.0 0.966 130.3 2202.0 0.966 130.4 2203.0 0.967 130.6 2204.0 0.967 130.7 2205.0 0.968 130.9 2206.0 0.969 131.0 2207.0 0.969 131.2 2208.0 0.970 131.4 2209.0 0.970 131.5 2210.0 0.971 131.7 2211.0 0.971 131.8 2212.0 0.972 132.0 2213.0 0.972 132.1 2214.0 0.972 132.3 2215.0 0.973 132.4 2216.0 0.973 132.6 2217.0 0.973 132.7 2218.0 0.974 132.9 2219.0 0.974 133.0 2220.0 0.974 133.2 2221.0 0.974 133.4 2222.0 0.975 133.5 2223.0 0.975 133.7 2224.0 0.975 133.8 2225.0 0.975 134.0 2226.0 0.975 134.1 2227.0 0.975 134.3 2228.0 0.975 134.4 2229.0 0.975 134.6 2230.0 0.975 134.7 2231.0 0.975 134.9 2232.0 0.975 135.0 2233.0 0.975 135.2 2234.0 0.975 135.3 2235.0 0.975 135.5 2236.0 0.975 135.7 2237.0 0.975 135.8 2238.0 0.975 136.0 2239.0 0.974 136.1 2240.0 0.974 136.3 2241.0 0.974 136.4 2242.0 0.974 136.6 2243.0 0.973 136.7 2244.0 0.973 136.9 2245.0 0.972 137.0 2246.0 0.972 137.2 2247.0 0.972 137.3 2248.0 0.971 137.5 2249.0 0.971 137.6 2250.0 0.970 137.8 2251.0 0.970 138.0 2252.0 0.969 138.1 2253.0 0.969 138.3 2254.0 0.968 138.4 2255.0 0.967 138.6 2256.0 0.967 138.7 2257.0 0.966 138.9 2258.0 0.965 139.0 2259.0 0.965 139.2 2260.0 0.964 139.4 2261.0 0.963 139.5 2262.0 0.962 139.7 2263.0 0.962 139.8 2264.0 0.961 140.0 2265.0 0.960 140.1 2266.0 0.959 140.3 2267.0 0.958 140.5 2268.0 0.957 140.6 2269.0 0.956 140.8 2270.0 0.955 140.9 2271.0 0.954 141.1 2272.0 0.953 141.3 2273.0 0.952 141.4 2274.0 0.951 141.6 2275.0 0.950 141.7 2276.0 0.949 141.9 2277.0 0.947 142.1 2278.0 0.946 142.2 2279.0 0.945 142.4 2280.0 0.944 142.6 2281.0 0.942 142.7 2282.0 0.941 142.9 2283.0 0.940 143.0 2284.0 0.938 143.2 2285.0 0.937 143.4 2286.0 0.936 143.5 2287.0 0.934 143.7 2288.0 0.933 143.9 2289.0 0.931 144.0 2290.0 0.930 144.2 2291.0 0.928 144.4 2292.0 0.927 144.5 2293.0 0.925 144.7 2294.0 0.923 144.9 2295.0 0.922 145.1 2296.0 0.920 145.2 2297.0 0.918 145.4 2298.0 0.916 145.6 2299.0 0.915 145.7 2300.0 0.913 145.9 2301.0 0.911 146.1 2302.0 0.909 146.3