| - Revision: |
$Rev: 1216 $ |
|
| - Report created: |
2025-07-11 16:32:56 |
| WDS: | STF208AB | WDS ID/Discoverer |
| P: | 325.000 | Orbital period (years) |
| a: | 1.39 | Semi-major axis (arcseconds) |
| i: | 51.0 | Inclination (degrees) |
| Ω: | 20.5 | Longitude of ascending node (degrees) |
| T: | 1931.600 | Epoch of periastron passage (year) |
| e: | 0.59 | Eccentricity |
| ω: | 165.0 | Longitude of periastron (degrees) |
| Start-Year: | 1863.0 | Year |
| End-Year: | 2187.0 | Year |
| Epoch: | 2025.0 | Besselian Epoch |
| Position: | 020339.26+255607.6 | Epoch-2000 right ascension and declination |
| WDS-ID: | 02037+2556 | WDS designation |
| Discoverer Code: | STF208AB | Discover designation and components |
| ADS number: | 1631 | Aitken Double Star catalog |
| HD number: | 12558 | HD catalog number |
| Hipparcos number: | 9621 | Hipparcos catalog number |
| V1: | 5.82 | Magnitude of the primary |
| V2: | 7.87 | Magnitude of the secondary |
| Equinox: | Equinox | |
| Date: | 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 1.634 351.0 ------------------------- 1863.0 1.551 37.2 1864.0 1.534 37.6 1865.0 1.517 38.1 1866.0 1.500 38.6 1867.0 1.482 39.0 1868.0 1.465 39.5 1869.0 1.447 40.1 1870.0 1.429 40.6 1871.0 1.410 41.1 1872.0 1.391 41.7 1873.0 1.372 42.2 1874.0 1.353 42.8 1875.0 1.334 43.4 1876.0 1.314 44.1 1877.0 1.294 44.7 1878.0 1.273 45.4 1879.0 1.253 46.0 1880.0 1.232 46.7 1881.0 1.211 47.5 1882.0 1.190 48.2 1883.0 1.168 49.0 1884.0 1.146 49.8 1885.0 1.124 50.7 1886.0 1.102 51.5 1887.0 1.079 52.5 1888.0 1.057 53.4 1889.0 1.034 54.4 1890.0 1.010 55.4 1891.0 0.987 56.5 1892.0 0.964 57.7 1893.0 0.940 58.9 1894.0 0.916 60.1 1895.0 0.892 61.5 1896.0 0.868 62.9 1897.0 0.844 64.4 1898.0 0.820 65.9 1899.0 0.796 67.6 1900.0 0.772 69.4 1901.0 0.748 71.3 1902.0 0.725 73.3 1903.0 0.701 75.4 1904.0 0.678 77.7 1905.0 0.655 80.1 1906.0 0.633 82.8 1907.0 0.612 85.6 1908.0 0.591 88.6 1909.0 0.571 91.8 1910.0 0.553 95.2 1911.0 0.535 98.9 1912.0 0.519 102.8 1913.0 0.505 107.0 1914.0 0.492 111.3 1915.0 0.482 115.9 1916.0 0.474 120.7 1917.0 0.467 125.6 1918.0 0.463 130.6 1919.0 0.462 135.7 1920.0 0.463 140.8 1921.0 0.465 145.9 1922.0 0.470 150.8 1923.0 0.477 155.7 1924.0 0.485 160.4 1925.0 0.494 165.0 1926.0 0.503 169.3 1927.0 0.514 173.5 1928.0 0.524 177.6 1929.0 0.534 181.5 1930.0 0.544 185.2 1931.0 0.553 188.8 1932.0 0.561 192.3 1933.0 0.569 195.7 1934.0 0.575 199.0 1935.0 0.580 202.3 1936.0 0.584 205.5 1937.0 0.587 208.7 1938.0 0.588 211.8 1939.0 0.589 215.0 1940.0 0.589 218.1 1941.0 0.589 221.2 1942.0 0.588 224.4 1943.0 0.587 227.5 1944.0 0.585 230.7 1945.0 0.584 233.9 1946.0 0.583 237.1 1947.0 0.582 240.3 1948.0 0.581 243.5 1949.0 0.581 246.7 1950.0 0.582 249.9 1951.0 0.583 253.1 1952.0 0.585 256.3 1953.0 0.588 259.5 1954.0 0.591 262.6 1955.0 0.596 265.7 1956.0 0.601 268.7 1957.0 0.607 271.7 1958.0 0.614 274.6 1959.0 0.622 277.5 1960.0 0.631 280.3 1961.0 0.640 282.9 1962.0 0.651 285.6 1963.0 0.662 288.1 1964.0 0.673 290.5 1965.0 0.685 292.9 1966.0 0.698 295.2 1967.0 0.712 297.3 1968.0 0.726 299.5 1969.0 0.740 301.5 1970.0 0.755 303.4 1971.0 0.770 305.3 1972.0 0.785 307.1 1973.0 0.801 308.8 1974.0 0.817 310.5 1975.0 0.833 312.1 1976.0 0.850 313.6 1977.0 0.867 315.1 1978.0 0.883 316.5 1979.0 0.900 317.9 1980.0 0.917 319.2 1981.0 0.935 320.5 1982.0 0.952 321.7 1983.0 0.969 322.9 1984.0 0.987 324.0 1985.0 1.004 325.1 1986.0 1.021 326.2 1987.0 1.039 327.2 1988.0 1.056 328.2 1989.0 1.074 329.1 1990.0 1.091 330.1 1991.0 1.108 331.0 1992.0 1.126 331.8 1993.0 1.143 332.7 1994.0 1.160 333.5 1995.0 1.177 334.3 1996.0 1.194 335.1 1997.0 1.211 335.8 1998.0 1.228 336.6 1999.0 1.244 337.3 2000.0 1.261 338.0 2001.0 1.277 338.6 2002.0 1.294 339.3 2003.0 1.310 339.9 2004.0 1.326 340.6 2005.0 1.342 341.2 2006.0 1.358 341.8 2007.0 1.374 342.4 2008.0 1.389 342.9 2009.0 1.405 343.5 2010.0 1.420 344.0 2011.0 1.436 344.6 2012.0 1.451 345.1 2013.0 1.466 345.6 2014.0 1.481 346.1 2015.0 1.495 346.6 2016.0 1.510 347.1 2017.0 1.524 347.5 2018.0 1.538 348.0 2019.0 1.553 348.5 2020.0 1.567 348.9 2021.0 1.580 349.3 2022.0 1.594 349.8 2023.0 1.608 350.2 2024.0 1.621 350.6 2025.0 1.634 351.0 2026.0 1.647 351.4 2027.0 1.660 351.8 2028.0 1.673 352.2 2029.0 1.685 352.6 2030.0 1.698 353.0 2031.0 1.710 353.4 2032.0 1.722 353.7 2033.0 1.734 354.1 2034.0 1.746 354.5 2035.0 1.758 354.8 2036.0 1.769 355.2 2037.0 1.781 355.5 2038.0 1.792 355.8 2039.0 1.803 356.2 2040.0 1.814 356.5 2041.0 1.825 356.8 2042.0 1.835 357.2 2043.0 1.846 357.5 2044.0 1.856 357.8 2045.0 1.866 358.1 2046.0 1.876 358.4 2047.0 1.886 358.7 2048.0 1.895 359.0 2049.0 1.905 359.3 2050.0 1.914 359.6 2051.0 1.923 359.9 2052.0 1.932 0.2 2053.0 1.941 0.5 2054.0 1.950 0.8 2055.0 1.958 1.1 2056.0 1.967 1.4 2057.0 1.975 1.7 2058.0 1.983 1.9 2059.0 1.991 2.2 2060.0 1.998 2.5 2061.0 2.006 2.8 2062.0 2.013 3.0 2063.0 2.021 3.3 2064.0 2.028 3.6 2065.0 2.035 3.8 2066.0 2.041 4.1 2067.0 2.048 4.3 2068.0 2.054 4.6 2069.0 2.061 4.9 2070.0 2.067 5.1 2071.0 2.073 5.4 2072.0 2.078 5.6 2073.0 2.084 5.9 2074.0 2.090 6.1 2075.0 2.095 6.4 2076.0 2.100 6.6 2077.0 2.105 6.9 2078.0 2.110 7.1 2079.0 2.114 7.4 2080.0 2.119 7.6 2081.0 2.123 7.8 2082.0 2.127 8.1 2083.0 2.131 8.3 2084.0 2.135 8.6 2085.0 2.139 8.8 2086.0 2.142 9.0 2087.0 2.146 9.3 2088.0 2.149 9.5 2089.0 2.152 9.7 2090.0 2.155 10.0 2091.0 2.158 10.2 2092.0 2.160 10.4 2093.0 2.163 10.7 2094.0 2.165 10.9 2095.0 2.167 11.1 2096.0 2.169 11.4 2097.0 2.170 11.6 2098.0 2.172 11.8 2099.0 2.173 12.1 2100.0 2.174 12.3 2101.0 2.175 12.5 2102.0 2.176 12.8 2103.0 2.177 13.0 2104.0 2.178 13.2 2105.0 2.178 13.4 2106.0 2.178 13.7 2107.0 2.178 13.9 2108.0 2.178 14.1 2109.0 2.178 14.4 2110.0 2.177 14.6 2111.0 2.177 14.8 2112.0 2.176 15.0 2113.0 2.175 15.3 2114.0 2.174 15.5 2115.0 2.172 15.7 2116.0 2.171 16.0 2117.0 2.169 16.2 2118.0 2.167 16.4 2119.0 2.165 16.7 2120.0 2.163 16.9 2121.0 2.160 17.1 2122.0 2.158 17.4 2123.0 2.155 17.6 2124.0 2.152 17.8 2125.0 2.149 18.1 2126.0 2.146 18.3 2127.0 2.142 18.5 2128.0 2.138 18.8 2129.0 2.135 19.0 2130.0 2.131 19.2 2131.0 2.126 19.5 2132.0 2.122 19.7 2133.0 2.117 20.0 2134.0 2.113 20.2 2135.0 2.108 20.5 2136.0 2.103 20.7 2137.0 2.097 21.0 2138.0 2.092 21.2 2139.0 2.086 21.4 2140.0 2.080 21.7 2141.0 2.074 22.0 2142.0 2.068 22.2 2143.0 2.061 22.5 2144.0 2.055 22.7 2145.0 2.048 23.0 2146.0 2.041 23.2 2147.0 2.033 23.5 2148.0 2.026 23.8 2149.0 2.018 24.0 2150.0 2.010 24.3 2151.0 2.002 24.6 2152.0 1.994 24.8 2153.0 1.986 25.1 2154.0 1.977 25.4 2155.0 1.968 25.7 2156.0 1.959 26.0 2157.0 1.950 26.2 2158.0 1.940 26.5 2159.0 1.930 26.8 2160.0 1.920 27.1 2161.0 1.910 27.4 2162.0 1.900 27.7 2163.0 1.889 28.0 2164.0 1.879 28.3 2165.0 1.868 28.6 2166.0 1.856 28.9 2167.0 1.845 29.3 2168.0 1.833 29.6 2169.0 1.821 29.9 2170.0 1.809 30.2 2171.0 1.797 30.6 2172.0 1.784 30.9 2173.0 1.771 31.2 2174.0 1.758 31.6 2175.0 1.745 32.0 2176.0 1.732 32.3 2177.0 1.718 32.7 2178.0 1.704 33.0 2179.0 1.690 33.4 2180.0 1.675 33.8 2181.0 1.661 34.2 2182.0 1.646 34.6 2183.0 1.630 35.0 2184.0 1.615 35.4 2185.0 1.599 35.8 2186.0 1.583 36.3