| 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: | 1746.5 | Year |
| End-Year: | 2303.5 | Year |
| Epoch: | 2026.5 | Besselian Epoch |
Further data from the WDS Sixth Catalog of Orbits for STF257 |
||
| 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 2 = Good 3 = Reliable 4 = Preliminary 5 = Indeterminate |
| Flags: | n | Flags |
| Ephemerides: | Ephemerides | |
| Code: | Doc2016b | Reference |
-- Image from the USNO WDS 6th Orbit Catalog (see Acknowledgements) --
| Green plus signs: | Visual (micrometric) measures |
| Violet asterisks: | Photographic measures |
| Blue symbols: | Various interferometric techniques |
| Dot-dash line: | Indicates the line of nodes |
Year Sep[“] PA[°] --------------------------------------------- 2026.50 0.499 84.70 -------------------------- 1746.50 0.906 146.54 1747.50 0.904 146.71 1748.50 0.902 146.89 1749.50 0.901 147.07 1750.50 0.898 147.25 1751.50 0.896 147.43 1752.50 0.894 147.61 1753.50 0.892 147.80 1754.50 0.890 147.98 1755.50 0.888 148.16 1756.50 0.886 148.35 1757.50 0.884 148.53 1758.50 0.881 148.72 1759.50 0.879 148.91 1760.50 0.877 149.10 1761.50 0.874 149.29 1762.50 0.872 149.48 1763.50 0.870 149.67 1764.50 0.867 149.86 1765.50 0.865 150.06 1766.50 0.862 150.25 1767.50 0.860 150.45 1768.50 0.857 150.65 1769.50 0.855 150.84 1770.50 0.852 151.04 1771.50 0.849 151.25 1772.50 0.847 151.45 1773.50 0.844 151.65 1774.50 0.841 151.86 1775.50 0.839 152.06 1776.50 0.836 152.27 1777.50 0.833 152.48 1778.50 0.830 152.69 1779.50 0.827 152.90 1780.50 0.824 153.11 1781.50 0.821 153.33 1782.50 0.818 153.55 1783.50 0.815 153.76 1784.50 0.812 153.98 1785.50 0.809 154.21 1786.50 0.806 154.43 1787.50 0.803 154.65 1788.50 0.800 154.88 1789.50 0.797 155.11 1790.50 0.794 155.34 1791.50 0.790 155.57 1792.50 0.787 155.80 1793.50 0.784 156.04 1794.50 0.780 156.28 1795.50 0.777 156.52 1796.50 0.774 156.76 1797.50 0.770 157.00 1798.50 0.767 157.25 1799.50 0.763 157.50 1800.50 0.760 157.75 1801.50 0.756 158.00 1802.50 0.752 158.26 1803.50 0.749 158.52 1804.50 0.745 158.78 1805.50 0.741 159.04 1806.50 0.738 159.31 1807.50 0.734 159.58 1808.50 0.730 159.85 1809.50 0.726 160.12 1810.50 0.722 160.40 1811.50 0.718 160.68 1812.50 0.714 160.97 1813.50 0.710 161.25 1814.50 0.706 161.54 1815.50 0.702 161.84 1816.50 0.698 162.13 1817.50 0.694 162.43 1818.50 0.690 162.74 1819.50 0.686 163.04 1820.50 0.681 163.36 1821.50 0.677 163.67 1822.50 0.673 163.99 1823.50 0.668 164.31 1824.50 0.664 164.64 1825.50 0.660 164.97 1826.50 0.655 165.31 1827.50 0.651 165.65 1828.50 0.646 166.00 1829.50 0.642 166.35 1830.50 0.637 166.71 1831.50 0.632 167.07 1832.50 0.628 167.43 1833.50 0.623 167.81 1834.50 0.618 168.18 1835.50 0.613 168.57 1836.50 0.609 168.96 1837.50 0.604 169.35 1838.50 0.599 169.75 1839.50 0.594 170.16 1840.50 0.589 170.58 1841.50 0.584 171.00 1842.50 0.579 171.43 1843.50 0.574 171.87 1844.50 0.569 172.32 1845.50 0.564 172.77 1846.50 0.559 173.23 1847.50 0.554 173.70 1848.50 0.548 174.18 1849.50 0.543 174.67 1850.50 0.538 175.17 1851.50 0.532 175.68 1852.50 0.527 176.19 1853.50 0.522 176.72 1854.50 0.516 177.26 1855.50 0.511 177.82 1856.50 0.505 178.38 1857.50 0.500 178.96 1858.50 0.494 179.54 1859.50 0.489 180.15 1860.50 0.483 180.76 1861.50 0.478 181.39 1862.50 0.472 182.04 1863.50 0.466 182.70 1864.50 0.461 183.38 1865.50 0.455 184.07 1866.50 0.449 184.78 1867.50 0.444 185.51 1868.50 0.438 186.26 1869.50 0.432 187.03 1870.50 0.426 187.82 1871.50 0.420 188.63 1872.50 0.415 189.47 1873.50 0.409 190.33 1874.50 0.403 191.21 1875.50 0.397 192.12 1876.50 0.391 193.06 1877.50 0.386 194.02 1878.50 0.380 195.01 1879.50 0.374 196.04 1880.50 0.368 197.10 1881.50 0.362 198.19 1882.50 0.357 199.31 1883.50 0.351 200.47 1884.50 0.345 201.67 1885.50 0.340 202.91 1886.50 0.334 204.20 1887.50 0.329 205.52 1888.50 0.323 206.89 1889.50 0.318 208.31 1890.50 0.312 209.78 1891.50 0.307 211.29 1892.50 0.302 212.86 1893.50 0.297 214.49 1894.50 0.292 216.16 1895.50 0.287 217.90 1896.50 0.282 219.70 1897.50 0.278 221.55 1898.50 0.273 223.47 1899.50 0.269 225.45 1900.50 0.265 227.49 1901.50 0.261 229.59 1902.50 0.257 231.76 1903.50 0.254 233.99 1904.50 0.251 236.28 1905.50 0.247 238.62 1906.50 0.245 241.03 1907.50 0.242 243.49 1908.50 0.240 246.00 1909.50 0.238 248.55 1910.50 0.236 251.15 1911.50 0.234 253.79 1912.50 0.233 256.45 1913.50 0.232 259.15 1914.50 0.231 261.86 1915.50 0.231 264.59 1916.50 0.231 267.32 1917.50 0.231 270.06 1918.50 0.231 272.80 1919.50 0.231 275.52 1920.50 0.232 278.23 1921.50 0.233 280.92 1922.50 0.234 283.59 1923.50 0.235 286.24 1924.50 0.237 288.85 1925.50 0.238 291.44 1926.50 0.240 293.99 1927.50 0.241 296.50 1928.50 0.243 298.99 1929.50 0.245 301.44 1930.50 0.246 303.85 1931.50 0.248 306.23 1932.50 0.250 308.58 1933.50 0.251 310.90 1934.50 0.253 313.19 1935.50 0.254 315.45 1936.50 0.256 317.69 1937.50 0.257 319.90 1938.50 0.259 322.08 1939.50 0.260 324.25 1940.50 0.261 326.39 1941.50 0.262 328.52 1942.50 0.263 330.63 1943.50 0.264 332.73 1944.50 0.265 334.81 1945.50 0.265 336.88 1946.50 0.266 338.94 1947.50 0.267 340.99 1948.50 0.268 343.03 1949.50 0.268 345.06 1950.50 0.269 347.08 1951.50 0.269 349.09 1952.50 0.270 351.09 1953.50 0.271 353.08 1954.50 0.271 355.06 1955.50 0.272 357.03 1956.50 0.273 359.00 1957.50 0.273 0.95 1958.50 0.274 2.89 1959.50 0.275 4.82 1960.50 0.276 6.74 1961.50 0.277 8.64 1962.50 0.278 10.53 1963.50 0.279 12.40 1964.50 0.281 14.26 1965.50 0.282 16.09 1966.50 0.284 17.91 1967.50 0.285 19.71 1968.50 0.287 21.49 1969.50 0.289 23.25 1970.50 0.291 24.98 1971.50 0.293 26.70 1972.50 0.295 28.38 1973.50 0.297 30.05 1974.50 0.299 31.69 1975.50 0.302 33.30 1976.50 0.304 34.88 1977.50 0.307 36.44 1978.50 0.309 37.98 1979.50 0.312 39.49 1980.50 0.315 40.96 1981.50 0.318 42.42 1982.50 0.321 43.84 1983.50 0.324 45.24 1984.50 0.327 46.61 1985.50 0.331 47.95 1986.50 0.334 49.27 1987.50 0.338 50.56 1988.50 0.341 51.83 1989.50 0.345 53.06 1990.50 0.348 54.28 1991.50 0.352 55.46 1992.50 0.356 56.63 1993.50 0.359 57.76 1994.50 0.363 58.88 1995.50 0.367 59.97 1996.50 0.371 61.04 1997.50 0.375 62.08 1998.50 0.379 63.11 1999.50 0.383 64.11 2000.50 0.387 65.09 2001.50 0.391 66.05 2002.50 0.395 66.99 2003.50 0.400 67.91 2004.50 0.404 68.81 2005.50 0.408 69.69 2006.50 0.412 70.56 2007.50 0.417 71.41 2008.50 0.421 72.24 2009.50 0.425 73.05 2010.50 0.429 73.85 2011.50 0.434 74.63 2012.50 0.438 75.39 2013.50 0.443 76.14 2014.50 0.447 76.88 2015.50 0.451 77.60 2016.50 0.456 78.31 2017.50 0.460 79.00 2018.50 0.464 79.68 2019.50 0.469 80.35 2020.50 0.473 81.01 2021.50 0.477 81.65 2022.50 0.482 82.29 2023.50 0.486 82.91 2024.50 0.491 83.52 2025.50 0.495 84.12 2026.50 0.499 84.70 2027.50 0.504 85.28 2028.50 0.508 85.85 2029.50 0.512 86.41 2030.50 0.517 86.96 2031.50 0.521 87.50 2032.50 0.525 88.03 2033.50 0.530 88.56 2034.50 0.534 89.07 2035.50 0.538 89.58 2036.50 0.543 90.07 2037.50 0.547 90.56 2038.50 0.551 91.05 2039.50 0.555 91.52 2040.50 0.560 91.99 2041.50 0.564 92.45 2042.50 0.568 92.91 2043.50 0.572 93.36 2044.50 0.576 93.80 2045.50 0.580 94.23 2046.50 0.585 94.66 2047.50 0.589 95.08 2048.50 0.593 95.50 2049.50 0.597 95.91 2050.50 0.601 96.32 2051.50 0.605 96.72 2052.50 0.609 97.11 2053.50 0.613 97.50 2054.50 0.617 97.89 2055.50 0.621 98.27 2056.50 0.625 98.64 2057.50 0.629 99.01 2058.50 0.633 99.38 2059.50 0.637 99.74 2060.50 0.641 100.09 2061.50 0.645 100.45 2062.50 0.648 100.79 2063.50 0.652 101.14 2064.50 0.656 101.48 2065.50 0.660 101.81 2066.50 0.664 102.15 2067.50 0.667 102.48 2068.50 0.671 102.80 2069.50 0.675 103.12 2070.50 0.678 103.44 2071.50 0.682 103.75 2072.50 0.686 104.07 2073.50 0.689 104.37 2074.50 0.693 104.68 2075.50 0.697 104.98 2076.50 0.700 105.28 2077.50 0.704 105.57 2078.50 0.707 105.86 2079.50 0.711 106.15 2080.50 0.714 106.44 2081.50 0.718 106.72 2082.50 0.721 107.01 2083.50 0.724 107.28 2084.50 0.728 107.56 2085.50 0.731 107.83 2086.50 0.735 108.10 2087.50 0.738 108.37 2088.50 0.741 108.64 2089.50 0.744 108.90 2090.50 0.748 109.16 2091.50 0.751 109.42 2092.50 0.754 109.68 2093.50 0.757 109.94 2094.50 0.760 110.19 2095.50 0.764 110.44 2096.50 0.767 110.69 2097.50 0.770 110.93 2098.50 0.773 111.18 2099.50 0.776 111.42 2100.50 0.779 111.66 2101.50 0.782 111.90 2102.50 0.785 112.14 2103.50 0.788 112.37 2104.50 0.791 112.61 2105.50 0.794 112.84 2106.50 0.797 113.07 2107.50 0.800 113.30 2108.50 0.802 113.52 2109.50 0.805 113.75 2110.50 0.808 113.97 2111.50 0.811 114.19 2112.50 0.814 114.42 2113.50 0.816 114.63 2114.50 0.819 114.85 2115.50 0.822 115.07 2116.50 0.824 115.28 2117.50 0.827 115.50 2118.50 0.830 115.71 2119.50 0.832 115.92 2120.50 0.835 116.13 2121.50 0.837 116.34 2122.50 0.840 116.54 2123.50 0.842 116.75 2124.50 0.845 116.95 2125.50 0.847 117.16 2126.50 0.850 117.36 2127.50 0.852 117.56 2128.50 0.854 117.76 2129.50 0.857 117.96 2130.50 0.859 118.16 2131.50 0.861 118.35 2132.50 0.864 118.55 2133.50 0.866 118.74 2134.50 0.868 118.94 2135.50 0.870 119.13 2136.50 0.873 119.32 2137.50 0.875 119.51 2138.50 0.877 119.70 2139.50 0.879 119.89 2140.50 0.881 120.08 2141.50 0.883 120.26 2142.50 0.885 120.45 2143.50 0.887 120.64 2144.50 0.889 120.82 2145.50 0.891 121.00 2146.50 0.893 121.19 2147.50 0.895 121.37 2148.50 0.897 121.55 2149.50 0.899 121.73 2150.50 0.901 121.91 2151.50 0.903 122.09 2152.50 0.905 122.27 2153.50 0.907 122.44 2154.50 0.908 122.62 2155.50 0.910 122.80 2156.50 0.912 122.97 2157.50 0.914 123.15 2158.50 0.915 123.32 2159.50 0.917 123.49 2160.50 0.919 123.67 2161.50 0.920 123.84 2162.50 0.922 124.01 2163.50 0.923 124.18 2164.50 0.925 124.35 2165.50 0.926 124.52 2166.50 0.928 124.69 2167.50 0.929 124.86 2168.50 0.931 125.03 2169.50 0.932 125.20 2170.50 0.934 125.36 2171.50 0.935 125.53 2172.50 0.936 125.70 2173.50 0.938 125.86 2174.50 0.939 126.03 2175.50 0.940 126.19 2176.50 0.942 126.36 2177.50 0.943 126.52 2178.50 0.944 126.68 2179.50 0.945 126.85 2180.50 0.947 127.01 2181.50 0.948 127.17 2182.50 0.949 127.33 2183.50 0.950 127.49 2184.50 0.951 127.66 2185.50 0.952 127.82 2186.50 0.953 127.98 2187.50 0.954 128.14 2188.50 0.955 128.30 2189.50 0.956 128.46 2190.50 0.957 128.61 2191.50 0.958 128.77 2192.50 0.959 128.93 2193.50 0.960 129.09 2194.50 0.961 129.25 2195.50 0.961 129.41 2196.50 0.962 129.56 2197.50 0.963 129.72 2198.50 0.964 129.88 2199.50 0.964 130.03 2200.50 0.965 130.19 2201.50 0.966 130.35 2202.50 0.967 130.50 2203.50 0.967 130.66 2204.50 0.968 130.81 2205.50 0.968 130.97 2206.50 0.969 131.12 2207.50 0.969 131.28 2208.50 0.970 131.43 2209.50 0.970 131.59 2210.50 0.971 131.74 2211.50 0.971 131.90 2212.50 0.972 132.05 2213.50 0.972 132.20 2214.50 0.973 132.36 2215.50 0.973 132.51 2216.50 0.973 132.67 2217.50 0.974 132.82 2218.50 0.974 132.97 2219.50 0.974 133.13 2220.50 0.974 133.28 2221.50 0.975 133.43 2222.50 0.975 133.59 2223.50 0.975 133.74 2224.50 0.975 133.89 2225.50 0.975 134.04 2226.50 0.975 134.20 2227.50 0.975 134.35 2228.50 0.975 134.50 2229.50 0.975 134.66 2230.50 0.975 134.81 2231.50 0.975 134.96 2232.50 0.975 135.12 2233.50 0.975 135.27 2234.50 0.975 135.42 2235.50 0.975 135.57 2236.50 0.975 135.73 2237.50 0.975 135.88 2238.50 0.974 136.03 2239.50 0.974 136.19 2240.50 0.974 136.34 2241.50 0.974 136.49 2242.50 0.973 136.65 2243.50 0.973 136.80 2244.50 0.973 136.95 2245.50 0.972 137.11 2246.50 0.972 137.26 2247.50 0.971 137.42 2248.50 0.971 137.57 2249.50 0.971 137.73 2250.50 0.970 137.88 2251.50 0.970 138.03 2252.50 0.969 138.19 2253.50 0.968 138.34 2254.50 0.968 138.50 2255.50 0.967 138.66 2256.50 0.967 138.81 2257.50 0.966 138.97 2258.50 0.965 139.12 2259.50 0.964 139.28 2260.50 0.964 139.44 2261.50 0.963 139.59 2262.50 0.962 139.75 2263.50 0.961 139.91 2264.50 0.960 140.07 2265.50 0.959 140.22 2266.50 0.959 140.38 2267.50 0.958 140.54 2268.50 0.957 140.70 2269.50 0.956 140.86 2270.50 0.955 141.02 2271.50 0.954 141.18 2272.50 0.953 141.34 2273.50 0.951 141.50 2274.50 0.950 141.66 2275.50 0.949 141.82 2276.50 0.948 141.98 2277.50 0.947 142.14 2278.50 0.946 142.31 2279.50 0.944 142.47 2280.50 0.943 142.63 2281.50 0.942 142.80 2282.50 0.941 142.96 2283.50 0.939 143.13 2284.50 0.938 143.29 2285.50 0.936 143.46 2286.50 0.935 143.62 2287.50 0.933 143.79 2288.50 0.932 143.96 2289.50 0.930 144.12 2290.50 0.929 144.29 2291.50 0.927 144.46 2292.50 0.926 144.63 2293.50 0.924 144.80 2294.50 0.922 144.97 2295.50 0.921 145.14 2296.50 0.919 145.31 2297.50 0.917 145.49 2298.50 0.916 145.66 2299.50 0.914 145.83 2300.50 0.912 146.01 2301.50 0.910 146.18 2302.50 0.908 146.36
| Double Star Calculator: | Version 1.2 ($Rev: 2397 $) |
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| Report created: |
2026-06-25 15:00:08 |