| - Revision: |
$Rev: 1216 $ |
|
| - Report created: |
2025-07-11 19:18:37 |
| WDS: | STF2744AB | WDS ID/Discoverer |
| P: | 642.817 | Orbital period (years) |
| a: | 1.813 | Semi-major axis (arcseconds) |
| i: | 125.792 | Inclination (degrees) |
| Ω: | 92.661 | Longitude of ascending node (degrees) |
| T: | 2075.440 | Epoch of periastron passage (year) |
| e: | 0.58393 | Eccentricity |
| ω: | 72.512 | Longitude of periastron (degrees) |
| Start-Year: | 1704.0 | Year |
| End-Year: | 2346.0 | Year |
| Epoch: | 2025.0 | Besselian Epoch |
| Position: | 210303.09+013155.9 | Epoch-2000 right ascension and declination |
| WDS-ID: | 21031+0132 | WDS designation |
| Discoverer Code: | STF2744AB | Discover designation and components |
| ADS number: | 14573 | Aitken Double Star catalog |
| HD number: | 200375 | HD catalog number |
| Hipparcos number: | 103892 | Hipparcos catalog number |
| V1: | 6.76 | Magnitude of the primary |
| V2: | 7.33 | Magnitude of the secondary |
| Equinox: | Equinox | |
| Date: | 2015 | Date of last observation |
| Orbit grade: | 4 | 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 1.175 104.4 ------------------------- 1704.0 1.943 223.3 1705.0 1.941 223.1 1706.0 1.939 222.8 1707.0 1.937 222.6 1708.0 1.935 222.4 1709.0 1.932 222.1 1710.0 1.930 221.9 1711.0 1.928 221.7 1712.0 1.926 221.4 1713.0 1.923 221.2 1714.0 1.921 221.0 1715.0 1.919 220.7 1716.0 1.916 220.5 1717.0 1.914 220.3 1718.0 1.912 220.0 1719.0 1.909 219.8 1720.0 1.907 219.5 1721.0 1.905 219.3 1722.0 1.902 219.1 1723.0 1.900 218.8 1724.0 1.897 218.6 1725.0 1.895 218.3 1726.0 1.892 218.1 1727.0 1.890 217.8 1728.0 1.887 217.6 1729.0 1.885 217.3 1730.0 1.882 217.1 1731.0 1.880 216.9 1732.0 1.877 216.6 1733.0 1.875 216.4 1734.0 1.872 216.1 1735.0 1.870 215.9 1736.0 1.867 215.6 1737.0 1.865 215.4 1738.0 1.862 215.1 1739.0 1.859 214.9 1740.0 1.857 214.6 1741.0 1.854 214.3 1742.0 1.852 214.1 1743.0 1.849 213.8 1744.0 1.846 213.6 1745.0 1.844 213.3 1746.0 1.841 213.1 1747.0 1.838 212.8 1748.0 1.836 212.6 1749.0 1.833 212.3 1750.0 1.830 212.0 1751.0 1.828 211.8 1752.0 1.825 211.5 1753.0 1.822 211.2 1754.0 1.820 211.0 1755.0 1.817 210.7 1756.0 1.814 210.5 1757.0 1.811 210.2 1758.0 1.809 209.9 1759.0 1.806 209.7 1760.0 1.803 209.4 1761.0 1.801 209.1 1762.0 1.798 208.8 1763.0 1.795 208.6 1764.0 1.792 208.3 1765.0 1.790 208.0 1766.0 1.787 207.8 1767.0 1.784 207.5 1768.0 1.781 207.2 1769.0 1.779 206.9 1770.0 1.776 206.7 1771.0 1.773 206.4 1772.0 1.770 206.1 1773.0 1.768 205.8 1774.0 1.765 205.5 1775.0 1.762 205.3 1776.0 1.759 205.0 1777.0 1.757 204.7 1778.0 1.754 204.4 1779.0 1.751 204.1 1780.0 1.748 203.8 1781.0 1.746 203.6 1782.0 1.743 203.3 1783.0 1.740 203.0 1784.0 1.737 202.7 1785.0 1.735 202.4 1786.0 1.732 202.1 1787.0 1.729 201.8 1788.0 1.726 201.5 1789.0 1.724 201.2 1790.0 1.721 200.9 1791.0 1.718 200.6 1792.0 1.715 200.3 1793.0 1.713 200.0 1794.0 1.710 199.7 1795.0 1.707 199.4 1796.0 1.704 199.1 1797.0 1.702 198.8 1798.0 1.699 198.5 1799.0 1.696 198.2 1800.0 1.694 197.9 1801.0 1.691 197.6 1802.0 1.688 197.3 1803.0 1.686 197.0 1804.0 1.683 196.7 1805.0 1.680 196.4 1806.0 1.678 196.1 1807.0 1.675 195.8 1808.0 1.672 195.5 1809.0 1.670 195.2 1810.0 1.667 194.8 1811.0 1.664 194.5 1812.0 1.662 194.2 1813.0 1.659 193.9 1814.0 1.656 193.6 1815.0 1.654 193.3 1816.0 1.651 192.9 1817.0 1.649 192.6 1818.0 1.646 192.3 1819.0 1.644 192.0 1820.0 1.641 191.6 1821.0 1.639 191.3 1822.0 1.636 191.0 1823.0 1.633 190.7 1824.0 1.631 190.3 1825.0 1.628 190.0 1826.0 1.626 189.7 1827.0 1.623 189.3 1828.0 1.621 189.0 1829.0 1.619 188.7 1830.0 1.616 188.3 1831.0 1.614 188.0 1832.0 1.611 187.7 1833.0 1.609 187.3 1834.0 1.606 187.0 1835.0 1.604 186.7 1836.0 1.602 186.3 1837.0 1.599 186.0 1838.0 1.597 185.6 1839.0 1.595 185.3 1840.0 1.592 185.0 1841.0 1.590 184.6 1842.0 1.588 184.3 1843.0 1.585 183.9 1844.0 1.583 183.6 1845.0 1.581 183.2 1846.0 1.578 182.9 1847.0 1.576 182.5 1848.0 1.574 182.2 1849.0 1.572 181.8 1850.0 1.570 181.5 1851.0 1.567 181.1 1852.0 1.565 180.7 1853.0 1.563 180.4 1854.0 1.561 180.0 1855.0 1.559 179.7 1856.0 1.557 179.3 1857.0 1.555 178.9 1858.0 1.552 178.6 1859.0 1.550 178.2 1860.0 1.548 177.9 1861.0 1.546 177.5 1862.0 1.544 177.1 1863.0 1.542 176.8 1864.0 1.540 176.4 1865.0 1.538 176.0 1866.0 1.536 175.7 1867.0 1.534 175.3 1868.0 1.532 174.9 1869.0 1.531 174.5 1870.0 1.529 174.2 1871.0 1.527 173.8 1872.0 1.525 173.4 1873.0 1.523 173.0 1874.0 1.521 172.7 1875.0 1.519 172.3 1876.0 1.518 171.9 1877.0 1.516 171.5 1878.0 1.514 171.1 1879.0 1.512 170.8 1880.0 1.510 170.4 1881.0 1.509 170.0 1882.0 1.507 169.6 1883.0 1.505 169.2 1884.0 1.504 168.8 1885.0 1.502 168.5 1886.0 1.500 168.1 1887.0 1.499 167.7 1888.0 1.497 167.3 1889.0 1.495 166.9 1890.0 1.494 166.5 1891.0 1.492 166.1 1892.0 1.491 165.7 1893.0 1.489 165.3 1894.0 1.487 164.9 1895.0 1.486 164.5 1896.0 1.484 164.1 1897.0 1.483 163.7 1898.0 1.481 163.3 1899.0 1.480 162.9 1900.0 1.478 162.5 1901.0 1.477 162.1 1902.0 1.476 161.7 1903.0 1.474 161.3 1904.0 1.473 160.9 1905.0 1.471 160.5 1906.0 1.470 160.1 1907.0 1.469 159.7 1908.0 1.467 159.3 1909.0 1.466 158.9 1910.0 1.465 158.5 1911.0 1.463 158.1 1912.0 1.462 157.7 1913.0 1.461 157.3 1914.0 1.459 156.9 1915.0 1.458 156.5 1916.0 1.457 156.1 1917.0 1.455 155.6 1918.0 1.454 155.2 1919.0 1.453 154.8 1920.0 1.452 154.4 1921.0 1.450 154.0 1922.0 1.449 153.6 1923.0 1.448 153.2 1924.0 1.447 152.7 1925.0 1.446 152.3 1926.0 1.444 151.9 1927.0 1.443 151.5 1928.0 1.442 151.1 1929.0 1.441 150.6 1930.0 1.440 150.2 1931.0 1.438 149.8 1932.0 1.437 149.4 1933.0 1.436 148.9 1934.0 1.435 148.5 1935.0 1.434 148.1 1936.0 1.432 147.7 1937.0 1.431 147.2 1938.0 1.430 146.8 1939.0 1.429 146.4 1940.0 1.428 146.0 1941.0 1.427 145.5 1942.0 1.425 145.1 1943.0 1.424 144.7 1944.0 1.423 144.2 1945.0 1.422 143.8 1946.0 1.420 143.4 1947.0 1.419 142.9 1948.0 1.418 142.5 1949.0 1.417 142.1 1950.0 1.415 141.6 1951.0 1.414 141.2 1952.0 1.413 140.8 1953.0 1.412 140.3 1954.0 1.410 139.9 1955.0 1.409 139.4 1956.0 1.408 139.0 1957.0 1.406 138.6 1958.0 1.405 138.1 1959.0 1.403 137.7 1960.0 1.402 137.2 1961.0 1.401 136.8 1962.0 1.399 136.3 1963.0 1.398 135.9 1964.0 1.396 135.5 1965.0 1.395 135.0 1966.0 1.393 134.6 1967.0 1.391 134.1 1968.0 1.390 133.6 1969.0 1.388 133.2 1970.0 1.386 132.7 1971.0 1.385 132.3 1972.0 1.383 131.8 1973.0 1.381 131.4 1974.0 1.379 130.9 1975.0 1.377 130.5 1976.0 1.375 130.0 1977.0 1.373 129.5 1978.0 1.371 129.1 1979.0 1.369 128.6 1980.0 1.367 128.1 1981.0 1.365 127.7 1982.0 1.363 127.2 1983.0 1.360 126.7 1984.0 1.358 126.3 1985.0 1.356 125.8 1986.0 1.353 125.3 1987.0 1.351 124.8 1988.0 1.348 124.3 1989.0 1.345 123.9 1990.0 1.343 123.4 1991.0 1.340 122.9 1992.0 1.337 122.4 1993.0 1.334 121.9 1994.0 1.331 121.4 1995.0 1.328 120.9 1996.0 1.324 120.4 1997.0 1.321 119.9 1998.0 1.318 119.4 1999.0 1.314 118.9 2000.0 1.310 118.4 2001.0 1.307 117.9 2002.0 1.303 117.4 2003.0 1.299 116.9 2004.0 1.295 116.4 2005.0 1.291 115.8 2006.0 1.286 115.3 2007.0 1.282 114.8 2008.0 1.277 114.2 2009.0 1.272 113.7 2010.0 1.268 113.2 2011.0 1.263 112.6 2012.0 1.257 112.1 2013.0 1.252 111.5 2014.0 1.247 110.9 2015.0 1.241 110.4 2016.0 1.235 109.8 2017.0 1.229 109.2 2018.0 1.223 108.7 2019.0 1.217 108.1 2020.0 1.210 107.5 2021.0 1.204 106.9 2022.0 1.197 106.3 2023.0 1.190 105.7 2024.0 1.182 105.0 2025.0 1.175 104.4 2026.0 1.167 103.8 2027.0 1.159 103.1 2028.0 1.151 102.5 2029.0 1.142 101.8 2030.0 1.134 101.1 2031.0 1.125 100.4 2032.0 1.115 99.7 2033.0 1.106 99.0 2034.0 1.096 98.3 2035.0 1.086 97.6 2036.0 1.076 96.8 2037.0 1.065 96.1 2038.0 1.054 95.3 2039.0 1.043 94.5 2040.0 1.031 93.7 2041.0 1.019 92.8 2042.0 1.007 92.0 2043.0 0.994 91.1 2044.0 0.981 90.2 2045.0 0.968 89.3 2046.0 0.955 88.4 2047.0 0.941 87.4 2048.0 0.926 86.4 2049.0 0.912 85.4 2050.0 0.897 84.3 2051.0 0.881 83.2 2052.0 0.866 82.0 2053.0 0.850 80.8 2054.0 0.833 79.6 2055.0 0.817 78.3 2056.0 0.800 77.0 2057.0 0.782 75.6 2058.0 0.765 74.1 2059.0 0.747 72.6 2060.0 0.729 71.0 2061.0 0.711 69.3 2062.0 0.693 67.5 2063.0 0.675 65.7 2064.0 0.657 63.7 2065.0 0.639 61.6 2066.0 0.621 59.4 2067.0 0.603 57.1 2068.0 0.585 54.6 2069.0 0.568 52.0 2070.0 0.552 49.2 2071.0 0.536 46.2 2072.0 0.521 43.1 2073.0 0.507 39.8 2074.0 0.494 36.3 2075.0 0.483 32.6 2076.0 0.472 28.8 2077.0 0.464 24.8 2078.0 0.457 20.7 2079.0 0.452 16.5 2080.0 0.449 12.1 2081.0 0.448 7.8 2082.0 0.448 3.4 2083.0 0.451 359.1 2084.0 0.456 354.9 2085.0 0.463 350.7 2086.0 0.471 346.7 2087.0 0.482 342.9 2088.0 0.493 339.2 2089.0 0.507 335.7 2090.0 0.521 332.4 2091.0 0.536 329.2 2092.0 0.553 326.3 2093.0 0.570 323.5 2094.0 0.588 320.9 2095.0 0.606 318.5 2096.0 0.625 316.1 2097.0 0.645 314.0 2098.0 0.665 311.9 2099.0 0.685 310.0 2100.0 0.705 308.2 2101.0 0.725 306.5 2102.0 0.745 304.9 2103.0 0.766 303.3 2104.0 0.786 301.9 2105.0 0.806 300.5 2106.0 0.827 299.2 2107.0 0.847 298.0 2108.0 0.867 296.8 2109.0 0.887 295.6 2110.0 0.907 294.5 2111.0 0.926 293.5 2112.0 0.946 292.5 2113.0 0.965 291.5 2114.0 0.984 290.6 2115.0 1.003 289.7 2116.0 1.021 288.9 2117.0 1.039 288.1 2118.0 1.058 287.3 2119.0 1.075 286.5 2120.0 1.093 285.8 2121.0 1.110 285.0 2122.0 1.128 284.3 2123.0 1.145 283.7 2124.0 1.161 283.0 2125.0 1.178 282.4 2126.0 1.194 281.7 2127.0 1.210 281.1 2128.0 1.226 280.6 2129.0 1.241 280.0 2130.0 1.256 279.4 2131.0 1.271 278.9 2132.0 1.286 278.3 2133.0 1.301 277.8 2134.0 1.315 277.3 2135.0 1.329 276.8 2136.0 1.343 276.3 2137.0 1.357 275.8 2138.0 1.371 275.4 2139.0 1.384 274.9 2140.0 1.397 274.4 2141.0 1.410 274.0 2142.0 1.423 273.6 2143.0 1.435 273.1 2144.0 1.447 272.7 2145.0 1.459 272.3 2146.0 1.471 271.9 2147.0 1.483 271.5 2148.0 1.495 271.1 2149.0 1.506 270.7 2150.0 1.517 270.3 2151.0 1.528 270.0 2152.0 1.539 269.6 2153.0 1.549 269.2 2154.0 1.560 268.9 2155.0 1.570 268.5 2156.0 1.580 268.1 2157.0 1.590 267.8 2158.0 1.600 267.5 2159.0 1.610 267.1 2160.0 1.619 266.8 2161.0 1.628 266.5 2162.0 1.638 266.1 2163.0 1.647 265.8 2164.0 1.655 265.5 2165.0 1.664 265.2 2166.0 1.673 264.8 2167.0 1.681 264.5 2168.0 1.689 264.2 2169.0 1.698 263.9 2170.0 1.706 263.6 2171.0 1.713 263.3 2172.0 1.721 263.0 2173.0 1.729 262.7 2174.0 1.736 262.4 2175.0 1.744 262.2 2176.0 1.751 261.9 2177.0 1.758 261.6 2178.0 1.765 261.3 2179.0 1.772 261.0 2180.0 1.778 260.7 2181.0 1.785 260.5 2182.0 1.791 260.2 2183.0 1.798 259.9 2184.0 1.804 259.7 2185.0 1.810 259.4 2186.0 1.816 259.1 2187.0 1.822 258.9 2188.0 1.828 258.6 2189.0 1.834 258.3 2190.0 1.839 258.1 2191.0 1.845 257.8 2192.0 1.850 257.6 2193.0 1.855 257.3 2194.0 1.861 257.1 2195.0 1.866 256.8 2196.0 1.871 256.6 2197.0 1.876 256.3 2198.0 1.880 256.1 2199.0 1.885 255.8 2200.0 1.890 255.6 2201.0 1.894 255.3 2202.0 1.899 255.1 2203.0 1.903 254.8 2204.0 1.907 254.6 2205.0 1.912 254.4 2206.0 1.916 254.1 2207.0 1.920 253.9 2208.0 1.924 253.6 2209.0 1.927 253.4 2210.0 1.931 253.2 2211.0 1.935 252.9 2212.0 1.938 252.7 2213.0 1.942 252.5 2214.0 1.945 252.2 2215.0 1.949 252.0 2216.0 1.952 251.8 2217.0 1.955 251.5 2218.0 1.958 251.3 2219.0 1.961 251.1 2220.0 1.964 250.9 2221.0 1.967 250.6 2222.0 1.970 250.4 2223.0 1.973 250.2 2224.0 1.975 250.0 2225.0 1.978 249.7 2226.0 1.980 249.5 2227.0 1.983 249.3 2228.0 1.985 249.1 2229.0 1.988 248.9 2230.0 1.990 248.6 2231.0 1.992 248.4 2232.0 1.994 248.2 2233.0 1.996 248.0 2234.0 1.998 247.8 2235.0 2.000 247.5 2236.0 2.002 247.3 2237.0 2.004 247.1 2238.0 2.006 246.9 2239.0 2.008 246.7 2240.0 2.009 246.4 2241.0 2.011 246.2 2242.0 2.012 246.0 2243.0 2.014 245.8 2244.0 2.015 245.6 2245.0 2.017 245.4 2246.0 2.018 245.2 2247.0 2.019 244.9 2248.0 2.020 244.7 2249.0 2.021 244.5 2250.0 2.023 244.3 2251.0 2.024 244.1 2252.0 2.025 243.9 2253.0 2.025 243.7 2254.0 2.026 243.4 2255.0 2.027 243.2 2256.0 2.028 243.0 2257.0 2.029 242.8 2258.0 2.029 242.6 2259.0 2.030 242.4 2260.0 2.031 242.2 2261.0 2.031 242.0 2262.0 2.032 241.7 2263.0 2.032 241.5 2264.0 2.032 241.3 2265.0 2.033 241.1 2266.0 2.033 240.9 2267.0 2.033 240.7 2268.0 2.034 240.5 2269.0 2.034 240.3 2270.0 2.034 240.1 2271.0 2.034 239.8 2272.0 2.034 239.6 2273.0 2.034 239.4 2274.0 2.034 239.2 2275.0 2.034 239.0 2276.0 2.034 238.8 2277.0 2.034 238.6 2278.0 2.033 238.4 2279.0 2.033 238.2 2280.0 2.033 237.9 2281.0 2.033 237.7 2282.0 2.032 237.5 2283.0 2.032 237.3 2284.0 2.031 237.1 2285.0 2.031 236.9 2286.0 2.030 236.7 2287.0 2.030 236.5 2288.0 2.029 236.2 2289.0 2.029 236.0 2290.0 2.028 235.8 2291.0 2.027 235.6 2292.0 2.027 235.4 2293.0 2.026 235.2 2294.0 2.025 235.0 2295.0 2.024 234.8 2296.0 2.023 234.5 2297.0 2.022 234.3 2298.0 2.021 234.1 2299.0 2.020 233.9 2300.0 2.020 233.7 2301.0 2.018 233.5 2302.0 2.017 233.3 2303.0 2.016 233.0 2304.0 2.015 232.8 2305.0 2.014 232.6 2306.0 2.013 232.4 2307.0 2.012 232.2 2308.0 2.010 232.0 2309.0 2.009 231.8 2310.0 2.008 231.5 2311.0 2.007 231.3 2312.0 2.005 231.1 2313.0 2.004 230.9 2314.0 2.002 230.7 2315.0 2.001 230.4 2316.0 2.000 230.2 2317.0 1.998 230.0 2318.0 1.997 229.8 2319.0 1.995 229.6 2320.0 1.994 229.4 2321.0 1.992 229.1 2322.0 1.990 228.9 2323.0 1.989 228.7 2324.0 1.987 228.5 2325.0 1.985 228.2 2326.0 1.984 228.0 2327.0 1.982 227.8 2328.0 1.980 227.6 2329.0 1.978 227.4 2330.0 1.977 227.1 2331.0 1.975 226.9 2332.0 1.973 226.7 2333.0 1.971 226.5 2334.0 1.969 226.2 2335.0 1.967 226.0 2336.0 1.965 225.8 2337.0 1.963 225.6 2338.0 1.961 225.3 2339.0 1.959 225.1 2340.0 1.957 224.9 2341.0 1.955 224.6 2342.0 1.953 224.4 2343.0 1.951 224.2 2344.0 1.949 224.0 2345.0 1.947 223.7