| WDS: | BU290AB | WDS ID/Discoverer |
| P: | 420.000 | Orbital period (years) |
| a: | 2.43 | Semi-major axis (arcseconds) |
| i: | 79.9 | Inclination (degrees) |
| Ω: | 40.3 | Longitude of ascending node (degrees) |
| T: | 1800.000 | Epoch of periastron passage (year) |
| e: | 0.59 | Eccentricity |
| ω: | 26.32 | Longitude of periastron (degrees) |
| Start-Year: | 1815.0 | Year |
| End-Year: | 2235.0 | Year |
| Epoch: | 2026.5 | Besselian Epoch |
Further data from the WDS Sixth Catalog of Orbits for BU290AB |
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| Position: | 222637.38+042337.1 | Epoch-2000 right ascension and declination |
| WDS-ID: | 22266+0424 | WDS designation |
| Discoverer Code: | BU290AB | Discover designation and components |
| ADS number: | 15935 | Aitken Double Star catalog |
| HD number: | 212754 | HD catalog number |
| Hipparcos number: | 110785 | Hipparcos catalog number |
| V1: | 5.81 | Magnitude of the primary |
| V2: | 12.5 | Magnitude of the secondary |
| Equinox: | 2000 | Equinox |
| Date: | 1990 | Date of last observation |
| Orbit grade: | 5 | Orbit grade, ranging from : 1 = Definitive 2 = Good 3 = Reliable 4 = Preliminary 5 = Indeterminate |
| Flags: | n | Flags |
| Ephemerides: | Ephemerides | |
| Code: | Hle1994 | 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 3.320 226.28 -------------------------- 1815.00 0.274 88.67 1816.00 0.245 99.42 1817.00 0.226 112.50 1818.00 0.220 127.11 1819.00 0.228 141.59 1820.00 0.249 154.34 1821.00 0.279 164.71 1822.00 0.317 172.83 1823.00 0.359 179.14 1824.00 0.404 184.08 1825.00 0.451 188.01 1826.00 0.499 191.19 1827.00 0.548 193.81 1828.00 0.598 196.00 1829.00 0.647 197.85 1830.00 0.697 199.44 1831.00 0.746 200.81 1832.00 0.796 202.02 1833.00 0.845 203.09 1834.00 0.893 204.04 1835.00 0.941 204.89 1836.00 0.989 205.66 1837.00 1.036 206.36 1838.00 1.083 206.99 1839.00 1.129 207.58 1840.00 1.175 208.12 1841.00 1.220 208.62 1842.00 1.265 209.08 1843.00 1.309 209.52 1844.00 1.353 209.92 1845.00 1.396 210.30 1846.00 1.439 210.66 1847.00 1.481 210.99 1848.00 1.522 211.31 1849.00 1.563 211.61 1850.00 1.603 211.90 1851.00 1.643 212.17 1852.00 1.682 212.43 1853.00 1.721 212.68 1854.00 1.759 212.91 1855.00 1.797 213.14 1856.00 1.834 213.36 1857.00 1.871 213.57 1858.00 1.907 213.77 1859.00 1.942 213.96 1860.00 1.978 214.15 1861.00 2.012 214.33 1862.00 2.046 214.50 1863.00 2.080 214.67 1864.00 2.113 214.83 1865.00 2.146 214.99 1866.00 2.178 215.15 1867.00 2.210 215.29 1868.00 2.241 215.44 1869.00 2.272 215.58 1870.00 2.302 215.72 1871.00 2.332 215.85 1872.00 2.362 215.98 1873.00 2.391 216.11 1874.00 2.419 216.23 1875.00 2.448 216.35 1876.00 2.475 216.47 1877.00 2.503 216.59 1878.00 2.530 216.70 1879.00 2.556 216.81 1880.00 2.582 216.92 1881.00 2.608 217.03 1882.00 2.633 217.13 1883.00 2.658 217.23 1884.00 2.683 217.33 1885.00 2.707 217.43 1886.00 2.731 217.53 1887.00 2.754 217.62 1888.00 2.777 217.72 1889.00 2.800 217.81 1890.00 2.822 217.90 1891.00 2.844 217.99 1892.00 2.865 218.08 1893.00 2.887 218.16 1894.00 2.907 218.25 1895.00 2.928 218.33 1896.00 2.948 218.42 1897.00 2.968 218.50 1898.00 2.987 218.58 1899.00 3.006 218.66 1900.00 3.025 218.74 1901.00 3.043 218.82 1902.00 3.062 218.89 1903.00 3.079 218.97 1904.00 3.097 219.04 1905.00 3.114 219.12 1906.00 3.131 219.19 1907.00 3.147 219.26 1908.00 3.163 219.34 1909.00 3.179 219.41 1910.00 3.195 219.48 1911.00 3.210 219.55 1912.00 3.225 219.62 1913.00 3.240 219.69 1914.00 3.254 219.75 1915.00 3.268 219.82 1916.00 3.282 219.89 1917.00 3.295 219.95 1918.00 3.308 220.02 1919.00 3.321 220.09 1920.00 3.334 220.15 1921.00 3.346 220.21 1922.00 3.358 220.28 1923.00 3.370 220.34 1924.00 3.381 220.40 1925.00 3.392 220.47 1926.00 3.403 220.53 1927.00 3.414 220.59 1928.00 3.424 220.65 1929.00 3.434 220.71 1930.00 3.444 220.77 1931.00 3.454 220.83 1932.00 3.463 220.89 1933.00 3.472 220.95 1934.00 3.481 221.01 1935.00 3.489 221.07 1936.00 3.498 221.13 1937.00 3.506 221.19 1938.00 3.513 221.25 1939.00 3.521 221.30 1940.00 3.528 221.36 1941.00 3.535 221.42 1942.00 3.542 221.48 1943.00 3.548 221.53 1944.00 3.555 221.59 1945.00 3.561 221.65 1946.00 3.566 221.70 1947.00 3.572 221.76 1948.00 3.577 221.82 1949.00 3.582 221.87 1950.00 3.587 221.93 1951.00 3.591 221.98 1952.00 3.596 222.04 1953.00 3.600 222.09 1954.00 3.604 222.15 1955.00 3.607 222.20 1956.00 3.611 222.26 1957.00 3.614 222.31 1958.00 3.617 222.37 1959.00 3.620 222.42 1960.00 3.622 222.48 1961.00 3.624 222.53 1962.00 3.626 222.59 1963.00 3.628 222.64 1964.00 3.630 222.70 1965.00 3.631 222.75 1966.00 3.632 222.81 1967.00 3.633 222.86 1968.00 3.634 222.91 1969.00 3.634 222.97 1970.00 3.635 223.02 1971.00 3.635 223.08 1972.00 3.634 223.13 1973.00 3.634 223.19 1974.00 3.633 223.24 1975.00 3.633 223.29 1976.00 3.632 223.35 1977.00 3.630 223.40 1978.00 3.629 223.46 1979.00 3.627 223.51 1980.00 3.625 223.57 1981.00 3.623 223.62 1982.00 3.621 223.68 1983.00 3.619 223.73 1984.00 3.616 223.78 1985.00 3.613 223.84 1986.00 3.610 223.89 1987.00 3.607 223.95 1988.00 3.603 224.00 1989.00 3.599 224.06 1990.00 3.596 224.12 1991.00 3.591 224.17 1992.00 3.587 224.23 1993.00 3.583 224.28 1994.00 3.578 224.34 1995.00 3.573 224.39 1996.00 3.568 224.45 1997.00 3.563 224.51 1998.00 3.557 224.56 1999.00 3.552 224.62 2000.00 3.546 224.68 2001.00 3.540 224.73 2002.00 3.533 224.79 2003.00 3.527 224.85 2004.00 3.520 224.91 2005.00 3.513 224.96 2006.00 3.506 225.02 2007.00 3.499 225.08 2008.00 3.492 225.14 2009.00 3.484 225.20 2010.00 3.476 225.26 2011.00 3.468 225.32 2012.00 3.460 225.38 2013.00 3.452 225.44 2014.00 3.443 225.50 2015.00 3.434 225.56 2016.00 3.425 225.62 2017.00 3.416 225.68 2018.00 3.407 225.74 2019.00 3.397 225.80 2020.00 3.388 225.87 2021.00 3.378 225.93 2022.00 3.368 225.99 2023.00 3.358 226.05 2024.00 3.347 226.12 2025.00 3.337 226.18 2026.00 3.326 226.25 2027.00 3.315 226.31 2028.00 3.304 226.38 2029.00 3.292 226.44 2030.00 3.281 226.51 2031.00 3.269 226.58 2032.00 3.257 226.64 2033.00 3.245 226.71 2034.00 3.233 226.78 2035.00 3.220 226.85 2036.00 3.208 226.92 2037.00 3.195 226.99 2038.00 3.182 227.06 2039.00 3.169 227.13 2040.00 3.156 227.20 2041.00 3.142 227.27 2042.00 3.128 227.35 2043.00 3.114 227.42 2044.00 3.100 227.49 2045.00 3.086 227.57 2046.00 3.072 227.65 2047.00 3.057 227.72 2048.00 3.042 227.80 2049.00 3.028 227.88 2050.00 3.012 227.95 2051.00 2.997 228.03 2052.00 2.982 228.11 2053.00 2.966 228.20 2054.00 2.950 228.28 2055.00 2.934 228.36 2056.00 2.918 228.44 2057.00 2.902 228.53 2058.00 2.885 228.61 2059.00 2.869 228.70 2060.00 2.852 228.79 2061.00 2.835 228.88 2062.00 2.818 228.97 2063.00 2.800 229.06 2064.00 2.783 229.15 2065.00 2.765 229.24 2066.00 2.747 229.34 2067.00 2.729 229.43 2068.00 2.711 229.53 2069.00 2.692 229.63 2070.00 2.674 229.73 2071.00 2.655 229.83 2072.00 2.636 229.93 2073.00 2.617 230.03 2074.00 2.598 230.14 2075.00 2.578 230.25 2076.00 2.559 230.36 2077.00 2.539 230.47 2078.00 2.519 230.58 2079.00 2.499 230.69 2080.00 2.479 230.81 2081.00 2.458 230.93 2082.00 2.438 231.04 2083.00 2.417 231.17 2084.00 2.396 231.29 2085.00 2.375 231.42 2086.00 2.353 231.54 2087.00 2.332 231.67 2088.00 2.310 231.81 2089.00 2.289 231.94 2090.00 2.267 232.08 2091.00 2.245 232.22 2092.00 2.222 232.37 2093.00 2.200 232.51 2094.00 2.177 232.66 2095.00 2.154 232.82 2096.00 2.132 232.97 2097.00 2.108 233.13 2098.00 2.085 233.29 2099.00 2.062 233.46 2100.00 2.038 233.63 2101.00 2.015 233.81 2102.00 1.991 233.98 2103.00 1.967 234.17 2104.00 1.943 234.35 2105.00 1.918 234.55 2106.00 1.894 234.74 2107.00 1.869 234.95 2108.00 1.844 235.15 2109.00 1.819 235.37 2110.00 1.794 235.59 2111.00 1.769 235.81 2112.00 1.744 236.05 2113.00 1.718 236.29 2114.00 1.692 236.53 2115.00 1.667 236.79 2116.00 1.641 237.05 2117.00 1.614 237.32 2118.00 1.588 237.60 2119.00 1.562 237.89 2120.00 1.535 238.19 2121.00 1.509 238.49 2122.00 1.482 238.82 2123.00 1.455 239.15 2124.00 1.428 239.49 2125.00 1.401 239.85 2126.00 1.374 240.22 2127.00 1.346 240.61 2128.00 1.319 241.01 2129.00 1.291 241.43 2130.00 1.264 241.87 2131.00 1.236 242.33 2132.00 1.208 242.81 2133.00 1.180 243.31 2134.00 1.152 243.84 2135.00 1.124 244.39 2136.00 1.096 244.98 2137.00 1.068 245.59 2138.00 1.040 246.23 2139.00 1.012 246.91 2140.00 0.984 247.63 2141.00 0.956 248.40 2142.00 0.928 249.20 2143.00 0.899 250.06 2144.00 0.871 250.98 2145.00 0.843 251.95 2146.00 0.816 252.99 2147.00 0.788 254.11 2148.00 0.760 255.31 2149.00 0.733 256.59 2150.00 0.706 257.98 2151.00 0.679 259.47 2152.00 0.653 261.09 2153.00 0.627 262.84 2154.00 0.601 264.74 2155.00 0.577 266.81 2156.00 0.552 269.06 2157.00 0.529 271.51 2158.00 0.507 274.18 2159.00 0.485 277.10 2160.00 0.465 280.28 2161.00 0.446 283.73 2162.00 0.429 287.48 2163.00 0.414 291.51 2164.00 0.401 295.83 2165.00 0.390 300.42 2166.00 0.382 305.23 2167.00 0.376 310.23 2168.00 0.373 315.33 2169.00 0.374 320.47 2170.00 0.376 325.58 2171.00 0.382 330.56 2172.00 0.391 335.37 2173.00 0.401 339.94 2174.00 0.415 344.25 2175.00 0.430 348.28 2176.00 0.447 352.01 2177.00 0.465 355.46 2178.00 0.485 358.64 2179.00 0.506 1.57 2180.00 0.528 4.25 2181.00 0.550 6.72 2182.00 0.574 8.99 2183.00 0.598 11.08 2184.00 0.622 13.01 2185.00 0.646 14.79 2186.00 0.671 16.44 2187.00 0.695 17.98 2188.00 0.720 19.41 2189.00 0.745 20.75 2190.00 0.769 22.00 2191.00 0.793 23.17 2192.00 0.816 24.28 2193.00 0.839 25.33 2194.00 0.862 26.32 2195.00 0.884 27.26 2196.00 0.905 28.15 2197.00 0.925 29.01 2198.00 0.944 29.83 2199.00 0.963 30.62 2200.00 0.980 31.38 2201.00 0.995 32.11 2202.00 1.010 32.83 2203.00 1.023 33.52 2204.00 1.034 34.20 2205.00 1.044 34.86 2206.00 1.051 35.51 2207.00 1.057 36.16 2208.00 1.060 36.80 2209.00 1.062 37.43 2210.00 1.060 38.07 2211.00 1.057 38.71 2212.00 1.050 39.36 2213.00 1.041 40.01 2214.00 1.029 40.68 2215.00 1.014 41.37 2216.00 0.996 42.07 2217.00 0.976 42.81 2218.00 0.952 43.58 2219.00 0.926 44.39 2220.00 0.896 45.26 2221.00 0.864 46.18 2222.00 0.830 47.18 2223.00 0.793 48.27 2224.00 0.754 49.47 2225.00 0.713 50.80 2226.00 0.670 52.30 2227.00 0.626 54.01 2228.00 0.580 55.98 2229.00 0.534 58.30 2230.00 0.488 61.05 2231.00 0.441 64.38 2232.00 0.396 68.49 2233.00 0.352 73.65 2234.00 0.310 80.22
| Double Star Calculator: | Version 1.2 ($Rev: 2397 $) |
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| Report created: |
2026-06-25 18:39:58 |