| WDS: | BU9AB | WDS ID/Discoverer |
| P: | 616.000 | Orbital period (years) |
| a: | 1.882 | Semi-major axis (arcseconds) |
| i: | 67.3 | Inclination (degrees) |
| Ω: | 174.0 | Longitude of ascending node (degrees) |
| T: | 1952.000 | Epoch of periastron passage (year) |
| e: | 0.1 | Eccentricity |
| ω: | 21.5 | Longitude of periastron (degrees) |
| Start-Year: | 1717.0 | Year |
| End-Year: | 2333.0 | Year |
| Epoch: | 2026.5 | Besselian Epoch |
Further data from the WDS Sixth Catalog of Orbits for BU9AB |
||
| Position: | 024703.60+353317.3 | Epoch-2000 right ascension and declination |
| WDS-ID: | 02471+3533 | WDS designation |
| Discoverer Code: | BU9AB | Discover designation and components |
| ADS number: | 2117 | Aitken Double Star catalog |
| HD number: | 17240 | HD catalog number |
| Hipparcos number: | 12990 | Hipparcos catalog number |
| V1: | 6.42 | Magnitude of the primary |
| V2: | 8.64 | Magnitude of the secondary |
| Equinox: | 2000 | Equinox |
| Date: | 2009 | Date of last observation |
| Orbit grade: | 5 | Orbit grade, ranging from : 1 = Definitive 2 = Good 3 = Reliable 4 = Preliminary 5 = Indeterminate |
| Flags: | Flags | |
| Ephemerides: | Ephemerides | |
| Code: | Zir2015a | 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 0.816 226.82 -------------------------- 1717.00 1.283 24.79 1718.00 1.272 25.28 1719.00 1.260 25.77 1720.00 1.249 26.28 1721.00 1.237 26.79 1722.00 1.225 27.32 1723.00 1.214 27.85 1724.00 1.202 28.39 1725.00 1.190 28.95 1726.00 1.179 29.52 1727.00 1.167 30.09 1728.00 1.156 30.68 1729.00 1.144 31.28 1730.00 1.133 31.90 1731.00 1.121 32.52 1732.00 1.110 33.16 1733.00 1.099 33.81 1734.00 1.087 34.48 1735.00 1.076 35.16 1736.00 1.065 35.85 1737.00 1.054 36.56 1738.00 1.043 37.28 1739.00 1.032 38.02 1740.00 1.021 38.78 1741.00 1.010 39.55 1742.00 0.999 40.34 1743.00 0.989 41.14 1744.00 0.978 41.96 1745.00 0.968 42.80 1746.00 0.957 43.66 1747.00 0.947 44.54 1748.00 0.937 45.43 1749.00 0.928 46.35 1750.00 0.918 47.28 1751.00 0.908 48.23 1752.00 0.899 49.21 1753.00 0.890 50.20 1754.00 0.881 51.21 1755.00 0.872 52.25 1756.00 0.864 53.30 1757.00 0.856 54.38 1758.00 0.848 55.47 1759.00 0.840 56.59 1760.00 0.832 57.73 1761.00 0.825 58.89 1762.00 0.818 60.06 1763.00 0.811 61.26 1764.00 0.805 62.48 1765.00 0.798 63.72 1766.00 0.792 64.97 1767.00 0.787 66.25 1768.00 0.782 67.54 1769.00 0.777 68.85 1770.00 0.772 70.18 1771.00 0.768 71.52 1772.00 0.764 72.87 1773.00 0.760 74.24 1774.00 0.757 75.62 1775.00 0.755 77.01 1776.00 0.752 78.41 1777.00 0.750 79.82 1778.00 0.748 81.24 1779.00 0.747 82.66 1780.00 0.746 84.08 1781.00 0.746 85.51 1782.00 0.746 86.94 1783.00 0.746 88.37 1784.00 0.747 89.80 1785.00 0.748 91.22 1786.00 0.749 92.64 1787.00 0.751 94.05 1788.00 0.753 95.45 1789.00 0.756 96.85 1790.00 0.759 98.23 1791.00 0.762 99.61 1792.00 0.766 100.97 1793.00 0.770 102.32 1794.00 0.775 103.65 1795.00 0.779 104.96 1796.00 0.784 106.26 1797.00 0.790 107.55 1798.00 0.796 108.81 1799.00 0.802 110.06 1800.00 0.808 111.29 1801.00 0.814 112.50 1802.00 0.821 113.68 1803.00 0.828 114.85 1804.00 0.836 116.00 1805.00 0.843 117.13 1806.00 0.851 118.23 1807.00 0.859 119.32 1808.00 0.868 120.39 1809.00 0.876 121.43 1810.00 0.885 122.46 1811.00 0.894 123.46 1812.00 0.903 124.45 1813.00 0.912 125.41 1814.00 0.921 126.36 1815.00 0.931 127.29 1816.00 0.940 128.20 1817.00 0.950 129.08 1818.00 0.960 129.96 1819.00 0.970 130.81 1820.00 0.980 131.64 1821.00 0.991 132.46 1822.00 1.001 133.27 1823.00 1.011 134.05 1824.00 1.022 134.82 1825.00 1.032 135.57 1826.00 1.043 136.31 1827.00 1.054 137.03 1828.00 1.064 137.74 1829.00 1.075 138.44 1830.00 1.086 139.12 1831.00 1.097 139.79 1832.00 1.108 140.44 1833.00 1.118 141.08 1834.00 1.129 141.71 1835.00 1.140 142.33 1836.00 1.151 142.93 1837.00 1.162 143.53 1838.00 1.173 144.11 1839.00 1.184 144.68 1840.00 1.194 145.25 1841.00 1.205 145.80 1842.00 1.216 146.34 1843.00 1.227 146.87 1844.00 1.238 147.40 1845.00 1.248 147.91 1846.00 1.259 148.42 1847.00 1.269 148.92 1848.00 1.280 149.40 1849.00 1.290 149.89 1850.00 1.301 150.36 1851.00 1.311 150.83 1852.00 1.321 151.28 1853.00 1.331 151.74 1854.00 1.342 152.18 1855.00 1.352 152.62 1856.00 1.362 153.05 1857.00 1.371 153.48 1858.00 1.381 153.90 1859.00 1.391 154.31 1860.00 1.400 154.72 1861.00 1.410 155.12 1862.00 1.419 155.52 1863.00 1.428 155.91 1864.00 1.438 156.30 1865.00 1.447 156.68 1866.00 1.456 157.06 1867.00 1.464 157.43 1868.00 1.473 157.80 1869.00 1.482 158.16 1870.00 1.490 158.52 1871.00 1.498 158.88 1872.00 1.506 159.23 1873.00 1.514 159.58 1874.00 1.522 159.92 1875.00 1.530 160.26 1876.00 1.538 160.60 1877.00 1.545 160.94 1878.00 1.552 161.27 1879.00 1.560 161.60 1880.00 1.567 161.92 1881.00 1.574 162.24 1882.00 1.580 162.56 1883.00 1.587 162.88 1884.00 1.593 163.20 1885.00 1.600 163.51 1886.00 1.606 163.82 1887.00 1.612 164.12 1888.00 1.617 164.43 1889.00 1.623 164.73 1890.00 1.628 165.03 1891.00 1.634 165.33 1892.00 1.639 165.63 1893.00 1.643 165.92 1894.00 1.648 166.22 1895.00 1.653 166.51 1896.00 1.657 166.80 1897.00 1.661 167.09 1898.00 1.665 167.37 1899.00 1.669 167.66 1900.00 1.673 167.95 1901.00 1.676 168.23 1902.00 1.680 168.51 1903.00 1.683 168.79 1904.00 1.686 169.07 1905.00 1.688 169.35 1906.00 1.691 169.63 1907.00 1.693 169.91 1908.00 1.695 170.18 1909.00 1.697 170.46 1910.00 1.699 170.74 1911.00 1.700 171.01 1912.00 1.702 171.29 1913.00 1.703 171.56 1914.00 1.704 171.83 1915.00 1.705 172.11 1916.00 1.705 172.38 1917.00 1.706 172.65 1918.00 1.706 172.93 1919.00 1.706 173.20 1920.00 1.706 173.47 1921.00 1.705 173.75 1922.00 1.705 174.02 1923.00 1.704 174.29 1924.00 1.703 174.57 1925.00 1.701 174.84 1926.00 1.700 175.12 1927.00 1.698 175.39 1928.00 1.697 175.67 1929.00 1.695 175.95 1930.00 1.692 176.22 1931.00 1.690 176.50 1932.00 1.687 176.78 1933.00 1.684 177.06 1934.00 1.681 177.34 1935.00 1.678 177.62 1936.00 1.675 177.90 1937.00 1.671 178.19 1938.00 1.667 178.47 1939.00 1.663 178.76 1940.00 1.659 179.05 1941.00 1.655 179.34 1942.00 1.650 179.63 1943.00 1.645 179.92 1944.00 1.641 180.22 1945.00 1.635 180.51 1946.00 1.630 180.81 1947.00 1.624 181.11 1948.00 1.619 181.41 1949.00 1.613 181.72 1950.00 1.607 182.02 1951.00 1.600 182.33 1952.00 1.594 182.64 1953.00 1.587 182.96 1954.00 1.581 183.27 1955.00 1.574 183.59 1956.00 1.566 183.92 1957.00 1.559 184.24 1958.00 1.552 184.57 1959.00 1.544 184.90 1960.00 1.536 185.24 1961.00 1.528 185.58 1962.00 1.520 185.92 1963.00 1.512 186.26 1964.00 1.503 186.61 1965.00 1.494 186.97 1966.00 1.486 187.33 1967.00 1.477 187.69 1968.00 1.468 188.05 1969.00 1.458 188.43 1970.00 1.449 188.80 1971.00 1.439 189.18 1972.00 1.430 189.57 1973.00 1.420 189.96 1974.00 1.410 190.36 1975.00 1.400 190.76 1976.00 1.390 191.17 1977.00 1.379 191.58 1978.00 1.369 192.01 1979.00 1.358 192.43 1980.00 1.347 192.87 1981.00 1.337 193.31 1982.00 1.326 193.76 1983.00 1.315 194.21 1984.00 1.304 194.68 1985.00 1.292 195.15 1986.00 1.281 195.63 1987.00 1.270 196.12 1988.00 1.258 196.61 1989.00 1.247 197.12 1990.00 1.235 197.64 1991.00 1.223 198.16 1992.00 1.212 198.70 1993.00 1.200 199.25 1994.00 1.188 199.80 1995.00 1.176 200.37 1996.00 1.164 200.95 1997.00 1.152 201.55 1998.00 1.140 202.15 1999.00 1.128 202.77 2000.00 1.116 203.40 2001.00 1.104 204.05 2002.00 1.092 204.70 2003.00 1.080 205.38 2004.00 1.068 206.07 2005.00 1.056 206.77 2006.00 1.044 207.50 2007.00 1.032 208.23 2008.00 1.020 208.99 2009.00 1.008 209.76 2010.00 0.996 210.56 2011.00 0.984 211.37 2012.00 0.972 212.20 2013.00 0.960 213.05 2014.00 0.949 213.92 2015.00 0.937 214.81 2016.00 0.926 215.73 2017.00 0.915 216.67 2018.00 0.904 217.63 2019.00 0.893 218.62 2020.00 0.882 219.62 2021.00 0.871 220.66 2022.00 0.861 221.72 2023.00 0.850 222.81 2024.00 0.840 223.92 2025.00 0.830 225.06 2026.00 0.821 226.22 2027.00 0.811 227.42 2028.00 0.802 228.64 2029.00 0.793 229.89 2030.00 0.785 231.16 2031.00 0.777 232.47 2032.00 0.769 233.80 2033.00 0.761 235.16 2034.00 0.754 236.54 2035.00 0.747 237.96 2036.00 0.740 239.39 2037.00 0.734 240.86 2038.00 0.728 242.35 2039.00 0.723 243.86 2040.00 0.718 245.39 2041.00 0.713 246.94 2042.00 0.709 248.51 2043.00 0.705 250.10 2044.00 0.702 251.71 2045.00 0.699 253.33 2046.00 0.697 254.96 2047.00 0.695 256.60 2048.00 0.694 258.24 2049.00 0.693 259.89 2050.00 0.693 261.55 2051.00 0.693 263.20 2052.00 0.694 264.85 2053.00 0.695 266.50 2054.00 0.697 268.14 2055.00 0.699 269.77 2056.00 0.702 271.39 2057.00 0.705 273.00 2058.00 0.708 274.59 2059.00 0.712 276.17 2060.00 0.717 277.72 2061.00 0.722 279.26 2062.00 0.727 280.77 2063.00 0.733 282.27 2064.00 0.739 283.73 2065.00 0.746 285.17 2066.00 0.753 286.59 2067.00 0.760 287.98 2068.00 0.768 289.34 2069.00 0.776 290.68 2070.00 0.784 291.98 2071.00 0.793 293.26 2072.00 0.802 294.51 2073.00 0.811 295.73 2074.00 0.820 296.93 2075.00 0.830 298.10 2076.00 0.840 299.24 2077.00 0.850 300.35 2078.00 0.861 301.43 2079.00 0.871 302.49 2080.00 0.882 303.53 2081.00 0.893 304.54 2082.00 0.905 305.52 2083.00 0.916 306.48 2084.00 0.927 307.41 2085.00 0.939 308.33 2086.00 0.951 309.22 2087.00 0.963 310.08 2088.00 0.975 310.93 2089.00 0.987 311.76 2090.00 0.999 312.56 2091.00 1.011 313.35 2092.00 1.024 314.12 2093.00 1.036 314.87 2094.00 1.049 315.60 2095.00 1.061 316.31 2096.00 1.074 317.01 2097.00 1.087 317.69 2098.00 1.099 318.35 2099.00 1.112 319.00 2100.00 1.125 319.64 2101.00 1.138 320.26 2102.00 1.151 320.87 2103.00 1.163 321.46 2104.00 1.176 322.04 2105.00 1.189 322.61 2106.00 1.202 323.17 2107.00 1.215 323.71 2108.00 1.227 324.25 2109.00 1.240 324.77 2110.00 1.253 325.28 2111.00 1.266 325.78 2112.00 1.278 326.27 2113.00 1.291 326.75 2114.00 1.304 327.23 2115.00 1.316 327.69 2116.00 1.329 328.14 2117.00 1.341 328.59 2118.00 1.354 329.03 2119.00 1.366 329.46 2120.00 1.378 329.88 2121.00 1.390 330.29 2122.00 1.403 330.70 2123.00 1.415 331.10 2124.00 1.427 331.50 2125.00 1.439 331.88 2126.00 1.451 332.26 2127.00 1.463 332.64 2128.00 1.474 333.01 2129.00 1.486 333.37 2130.00 1.498 333.73 2131.00 1.509 334.08 2132.00 1.521 334.42 2133.00 1.532 334.77 2134.00 1.543 335.10 2135.00 1.554 335.43 2136.00 1.565 335.76 2137.00 1.576 336.08 2138.00 1.587 336.40 2139.00 1.598 336.71 2140.00 1.609 337.02 2141.00 1.619 337.33 2142.00 1.630 337.63 2143.00 1.640 337.93 2144.00 1.650 338.22 2145.00 1.660 338.51 2146.00 1.670 338.80 2147.00 1.680 339.08 2148.00 1.690 339.36 2149.00 1.700 339.64 2150.00 1.709 339.91 2151.00 1.719 340.18 2152.00 1.728 340.45 2153.00 1.738 340.71 2154.00 1.747 340.97 2155.00 1.756 341.23 2156.00 1.765 341.49 2157.00 1.773 341.74 2158.00 1.782 342.00 2159.00 1.791 342.24 2160.00 1.799 342.49 2161.00 1.807 342.74 2162.00 1.815 342.98 2163.00 1.823 343.22 2164.00 1.831 343.46 2165.00 1.839 343.69 2166.00 1.847 343.93 2167.00 1.854 344.16 2168.00 1.862 344.39 2169.00 1.869 344.62 2170.00 1.876 344.84 2171.00 1.883 345.07 2172.00 1.890 345.29 2173.00 1.897 345.51 2174.00 1.903 345.73 2175.00 1.910 345.95 2176.00 1.916 346.17 2177.00 1.922 346.39 2178.00 1.928 346.60 2179.00 1.934 346.81 2180.00 1.940 347.03 2181.00 1.946 347.24 2182.00 1.951 347.45 2183.00 1.956 347.65 2184.00 1.962 347.86 2185.00 1.967 348.07 2186.00 1.972 348.27 2187.00 1.976 348.48 2188.00 1.981 348.68 2189.00 1.986 348.88 2190.00 1.990 349.08 2191.00 1.994 349.28 2192.00 1.998 349.48 2193.00 2.002 349.68 2194.00 2.006 349.88 2195.00 2.010 350.07 2196.00 2.013 350.27 2197.00 2.017 350.47 2198.00 2.020 350.66 2199.00 2.023 350.86 2200.00 2.026 351.05 2201.00 2.029 351.24 2202.00 2.032 351.44 2203.00 2.034 351.63 2204.00 2.037 351.82 2205.00 2.039 352.01 2206.00 2.041 352.20 2207.00 2.043 352.39 2208.00 2.045 352.58 2209.00 2.047 352.77 2210.00 2.048 352.96 2211.00 2.050 353.15 2212.00 2.051 353.34 2213.00 2.052 353.53 2214.00 2.053 353.72 2215.00 2.054 353.91 2216.00 2.055 354.10 2217.00 2.055 354.28 2218.00 2.056 354.47 2219.00 2.056 354.66 2220.00 2.056 354.85 2221.00 2.056 355.04 2222.00 2.056 355.22 2223.00 2.056 355.41 2224.00 2.055 355.60 2225.00 2.055 355.79 2226.00 2.054 355.98 2227.00 2.053 356.17 2228.00 2.052 356.35 2229.00 2.051 356.54 2230.00 2.050 356.73 2231.00 2.048 356.92 2232.00 2.047 357.11 2233.00 2.045 357.30 2234.00 2.043 357.49 2235.00 2.041 357.68 2236.00 2.039 357.87 2237.00 2.037 358.06 2238.00 2.035 358.26 2239.00 2.032 358.45 2240.00 2.029 358.64 2241.00 2.027 358.83 2242.00 2.024 359.03 2243.00 2.021 359.22 2244.00 2.017 359.42 2245.00 2.014 359.61 2246.00 2.011 359.81 2247.00 2.007 0.01 2248.00 2.003 0.20 2249.00 1.999 0.40 2250.00 1.995 0.60 2251.00 1.991 0.80 2252.00 1.987 1.00 2253.00 1.983 1.20 2254.00 1.978 1.41 2255.00 1.973 1.61 2256.00 1.969 1.81 2257.00 1.964 2.02 2258.00 1.959 2.23 2259.00 1.954 2.43 2260.00 1.948 2.64 2261.00 1.943 2.85 2262.00 1.937 3.06 2263.00 1.932 3.28 2264.00 1.926 3.49 2265.00 1.920 3.71 2266.00 1.914 3.92 2267.00 1.908 4.14 2268.00 1.901 4.36 2269.00 1.895 4.58 2270.00 1.889 4.80 2271.00 1.882 5.02 2272.00 1.875 5.25 2273.00 1.868 5.48 2274.00 1.861 5.71 2275.00 1.854 5.94 2276.00 1.847 6.17 2277.00 1.840 6.40 2278.00 1.832 6.64 2279.00 1.825 6.88 2280.00 1.817 7.12 2281.00 1.809 7.36 2282.00 1.801 7.60 2283.00 1.793 7.85 2284.00 1.785 8.10 2285.00 1.777 8.35 2286.00 1.769 8.60 2287.00 1.760 8.85 2288.00 1.752 9.11 2289.00 1.743 9.37 2290.00 1.734 9.64 2291.00 1.725 9.90 2292.00 1.716 10.17 2293.00 1.707 10.44 2294.00 1.698 10.71 2295.00 1.689 10.99 2296.00 1.680 11.27 2297.00 1.670 11.56 2298.00 1.661 11.84 2299.00 1.651 12.13 2300.00 1.641 12.42 2301.00 1.632 12.72 2302.00 1.622 13.02 2303.00 1.612 13.33 2304.00 1.602 13.63 2305.00 1.592 13.95 2306.00 1.582 14.26 2307.00 1.571 14.58 2308.00 1.561 14.91 2309.00 1.551 15.23 2310.00 1.540 15.57 2311.00 1.530 15.90 2312.00 1.519 16.25 2313.00 1.508 16.59 2314.00 1.497 16.94 2315.00 1.487 17.30 2316.00 1.476 17.66 2317.00 1.465 18.03 2318.00 1.454 18.40 2319.00 1.443 18.78 2320.00 1.432 19.17 2321.00 1.420 19.56 2322.00 1.409 19.96 2323.00 1.398 20.36 2324.00 1.387 20.77 2325.00 1.375 21.19 2326.00 1.364 21.61 2327.00 1.353 22.04 2328.00 1.341 22.48 2329.00 1.330 22.93 2330.00 1.318 23.38 2331.00 1.307 23.84 2332.00 1.295 24.31
| Double Star Calculator: | Version 1.2 ($Rev: 2397 $) |
|
| Report created: |
2026-06-25 15:04:40 |