| WDS: | BU547AB | WDS ID/Discoverer |
| P: | 479.000 | Orbital period (years) |
| a: | 1.053 | Semi-major axis (arcseconds) |
| i: | 128.6 | Inclination (degrees) |
| Ω: | 52.9 | Longitude of ascending node (degrees) |
| T: | 1816.600 | Epoch of periastron passage (year) |
| e: | 0.91 | Eccentricity |
| ω: | 263.0 | Longitude of periastron (degrees) |
| Start-Year: | 1785.5 | Year |
| End-Year: | 2264.5 | Year |
| Epoch: | 2026.5 | Besselian Epoch |
Further data from the WDS Sixth Catalog of Orbits for BU547AB |
||
| Position: | 041356.39+091550.0 | Epoch-2000 right ascension and declination |
| WDS-ID: | 04139+0916 | WDS designation |
| Discoverer Code: | BU547AB | Discover designation and components |
| ADS number: | 3072 | Aitken Double Star catalog |
| HD number: | 26722 | HD catalog number |
| Hipparcos number: | 19740 | Hipparcos catalog number |
| V1: | 5.05 | Magnitude of the primary |
| V2: | 7.32 | Magnitude of the secondary |
| Equinox: | 2000 | Equinox |
| Date: | 2009 | Date of last observation |
| Orbit grade: | 4 | Orbit grade, ranging from : 1 = Definitive 2 = Good 3 = Reliable 4 = Preliminary 5 = Indeterminate |
| Flags: | n | 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 1.269 337.98 -------------------------- 1785.50 0.552 285.48 1786.50 0.542 284.76 1787.50 0.533 284.01 1788.50 0.524 283.24 1789.50 0.514 282.44 1790.50 0.505 281.61 1791.50 0.495 280.75 1792.50 0.485 279.85 1793.50 0.474 278.91 1794.50 0.464 277.93 1795.50 0.453 276.90 1796.50 0.442 275.83 1797.50 0.430 274.69 1798.50 0.419 273.50 1799.50 0.407 272.23 1800.50 0.394 270.89 1801.50 0.382 269.46 1802.50 0.368 267.92 1803.50 0.354 266.27 1804.50 0.340 264.48 1805.50 0.325 262.53 1806.50 0.309 260.39 1807.50 0.293 258.01 1808.50 0.275 255.33 1809.50 0.256 252.27 1810.50 0.235 248.70 1811.50 0.213 244.40 1812.50 0.188 239.01 1813.50 0.159 231.81 1814.50 0.126 221.11 1815.50 0.089 201.98 1816.50 0.061 159.97 1817.50 0.073 105.11 1818.50 0.110 77.89 1819.50 0.148 64.75 1820.50 0.183 56.81 1821.50 0.213 51.29 1822.50 0.241 47.10 1823.50 0.266 43.74 1824.50 0.290 40.95 1825.50 0.312 38.56 1826.50 0.332 36.48 1827.50 0.351 34.63 1828.50 0.370 32.98 1829.50 0.387 31.47 1830.50 0.404 30.09 1831.50 0.420 28.82 1832.50 0.435 27.64 1833.50 0.450 26.54 1834.50 0.465 25.51 1835.50 0.478 24.54 1836.50 0.492 23.62 1837.50 0.505 22.76 1838.50 0.518 21.93 1839.50 0.530 21.15 1840.50 0.542 20.40 1841.50 0.554 19.68 1842.50 0.565 18.99 1843.50 0.576 18.33 1844.50 0.587 17.69 1845.50 0.598 17.08 1846.50 0.608 16.48 1847.50 0.619 15.91 1848.50 0.629 15.36 1849.50 0.639 14.82 1850.50 0.648 14.30 1851.50 0.658 13.79 1852.50 0.667 13.30 1853.50 0.676 12.82 1854.50 0.685 12.36 1855.50 0.694 11.91 1856.50 0.702 11.46 1857.50 0.711 11.03 1858.50 0.719 10.61 1859.50 0.728 10.20 1860.50 0.736 9.80 1861.50 0.744 9.40 1862.50 0.751 9.02 1863.50 0.759 8.64 1864.50 0.767 8.27 1865.50 0.774 7.90 1866.50 0.782 7.55 1867.50 0.789 7.20 1868.50 0.796 6.86 1869.50 0.803 6.52 1870.50 0.810 6.19 1871.50 0.817 5.86 1872.50 0.824 5.54 1873.50 0.830 5.23 1874.50 0.837 4.92 1875.50 0.844 4.61 1876.50 0.850 4.31 1877.50 0.856 4.01 1878.50 0.863 3.72 1879.50 0.869 3.43 1880.50 0.875 3.15 1881.50 0.881 2.87 1882.50 0.887 2.60 1883.50 0.893 2.32 1884.50 0.899 2.05 1885.50 0.904 1.79 1886.50 0.910 1.53 1887.50 0.915 1.27 1888.50 0.921 1.01 1889.50 0.926 0.76 1890.50 0.932 0.51 1891.50 0.937 0.26 1892.50 0.942 0.02 1893.50 0.948 359.78 1894.50 0.953 359.54 1895.50 0.958 359.30 1896.50 0.963 359.07 1897.50 0.968 358.84 1898.50 0.973 358.61 1899.50 0.977 358.38 1900.50 0.982 358.16 1901.50 0.987 357.93 1902.50 0.992 357.71 1903.50 0.996 357.50 1904.50 1.001 357.28 1905.50 1.005 357.07 1906.50 1.010 356.85 1907.50 1.014 356.64 1908.50 1.018 356.43 1909.50 1.023 356.23 1910.50 1.027 356.02 1911.50 1.031 355.82 1912.50 1.035 355.62 1913.50 1.039 355.42 1914.50 1.043 355.22 1915.50 1.047 355.02 1916.50 1.051 354.82 1917.50 1.055 354.63 1918.50 1.059 354.44 1919.50 1.063 354.25 1920.50 1.067 354.06 1921.50 1.070 353.87 1922.50 1.074 353.68 1923.50 1.078 353.49 1924.50 1.081 353.31 1925.50 1.085 353.12 1926.50 1.088 352.94 1927.50 1.092 352.76 1928.50 1.095 352.58 1929.50 1.099 352.40 1930.50 1.102 352.22 1931.50 1.105 352.05 1932.50 1.108 351.87 1933.50 1.112 351.69 1934.50 1.115 351.52 1935.50 1.118 351.35 1936.50 1.121 351.18 1937.50 1.124 351.00 1938.50 1.127 350.83 1939.50 1.130 350.67 1940.50 1.133 350.50 1941.50 1.136 350.33 1942.50 1.139 350.16 1943.50 1.142 350.00 1944.50 1.145 349.83 1945.50 1.147 349.67 1946.50 1.150 349.51 1947.50 1.153 349.34 1948.50 1.156 349.18 1949.50 1.158 349.02 1950.50 1.161 348.86 1951.50 1.163 348.70 1952.50 1.166 348.54 1953.50 1.168 348.38 1954.50 1.171 348.22 1955.50 1.173 348.07 1956.50 1.176 347.91 1957.50 1.178 347.76 1958.50 1.180 347.60 1959.50 1.183 347.45 1960.50 1.185 347.29 1961.50 1.187 347.14 1962.50 1.189 346.99 1963.50 1.191 346.83 1964.50 1.194 346.68 1965.50 1.196 346.53 1966.50 1.198 346.38 1967.50 1.200 346.23 1968.50 1.202 346.08 1969.50 1.204 345.93 1970.50 1.206 345.78 1971.50 1.208 345.64 1972.50 1.209 345.49 1973.50 1.211 345.34 1974.50 1.213 345.19 1975.50 1.215 345.05 1976.50 1.217 344.90 1977.50 1.218 344.76 1978.50 1.220 344.61 1979.50 1.222 344.47 1980.50 1.223 344.32 1981.50 1.225 344.18 1982.50 1.227 344.04 1983.50 1.228 343.89 1984.50 1.230 343.75 1985.50 1.231 343.61 1986.50 1.233 343.47 1987.50 1.234 343.32 1988.50 1.235 343.18 1989.50 1.237 343.04 1990.50 1.238 342.90 1991.50 1.240 342.76 1992.50 1.241 342.62 1993.50 1.242 342.48 1994.50 1.243 342.34 1995.50 1.245 342.20 1996.50 1.246 342.06 1997.50 1.247 341.92 1998.50 1.248 341.79 1999.50 1.249 341.65 2000.50 1.250 341.51 2001.50 1.251 341.37 2002.50 1.252 341.23 2003.50 1.253 341.10 2004.50 1.254 340.96 2005.50 1.255 340.82 2006.50 1.256 340.69 2007.50 1.257 340.55 2008.50 1.258 340.41 2009.50 1.259 340.28 2010.50 1.259 340.14 2011.50 1.260 340.00 2012.50 1.261 339.87 2013.50 1.262 339.73 2014.50 1.262 339.60 2015.50 1.263 339.46 2016.50 1.264 339.33 2017.50 1.264 339.19 2018.50 1.265 339.06 2019.50 1.266 338.92 2020.50 1.266 338.79 2021.50 1.267 338.65 2022.50 1.267 338.52 2023.50 1.268 338.39 2024.50 1.268 338.25 2025.50 1.268 338.12 2026.50 1.269 337.98 2027.50 1.269 337.85 2028.50 1.270 337.72 2029.50 1.270 337.58 2030.50 1.270 337.45 2031.50 1.270 337.32 2032.50 1.271 337.18 2033.50 1.271 337.05 2034.50 1.271 336.92 2035.50 1.271 336.78 2036.50 1.271 336.65 2037.50 1.272 336.52 2038.50 1.272 336.38 2039.50 1.272 336.25 2040.50 1.272 336.12 2041.50 1.272 335.98 2042.50 1.272 335.85 2043.50 1.272 335.72 2044.50 1.272 335.58 2045.50 1.272 335.45 2046.50 1.272 335.32 2047.50 1.271 335.18 2048.50 1.271 335.05 2049.50 1.271 334.92 2050.50 1.271 334.78 2051.50 1.271 334.65 2052.50 1.270 334.52 2053.50 1.270 334.38 2054.50 1.270 334.25 2055.50 1.270 334.11 2056.50 1.269 333.98 2057.50 1.269 333.85 2058.50 1.268 333.71 2059.50 1.268 333.58 2060.50 1.268 333.44 2061.50 1.267 333.31 2062.50 1.267 333.18 2063.50 1.266 333.04 2064.50 1.265 332.91 2065.50 1.265 332.77 2066.50 1.264 332.64 2067.50 1.264 332.50 2068.50 1.263 332.37 2069.50 1.262 332.23 2070.50 1.262 332.10 2071.50 1.261 331.96 2072.50 1.260 331.83 2073.50 1.260 331.69 2074.50 1.259 331.55 2075.50 1.258 331.42 2076.50 1.257 331.28 2077.50 1.256 331.15 2078.50 1.255 331.01 2079.50 1.254 330.87 2080.50 1.253 330.73 2081.50 1.253 330.60 2082.50 1.252 330.46 2083.50 1.251 330.32 2084.50 1.250 330.18 2085.50 1.248 330.05 2086.50 1.247 329.91 2087.50 1.246 329.77 2088.50 1.245 329.63 2089.50 1.244 329.49 2090.50 1.243 329.35 2091.50 1.242 329.21 2092.50 1.240 329.07 2093.50 1.239 328.93 2094.50 1.238 328.79 2095.50 1.237 328.65 2096.50 1.235 328.51 2097.50 1.234 328.37 2098.50 1.233 328.23 2099.50 1.231 328.08 2100.50 1.230 327.94 2101.50 1.228 327.80 2102.50 1.227 327.66 2103.50 1.225 327.51 2104.50 1.224 327.37 2105.50 1.222 327.22 2106.50 1.221 327.08 2107.50 1.219 326.93 2108.50 1.217 326.79 2109.50 1.216 326.64 2110.50 1.214 326.50 2111.50 1.212 326.35 2112.50 1.211 326.20 2113.50 1.209 326.06 2114.50 1.207 325.91 2115.50 1.205 325.76 2116.50 1.203 325.61 2117.50 1.202 325.46 2118.50 1.200 325.31 2119.50 1.198 325.16 2120.50 1.196 325.01 2121.50 1.194 324.86 2122.50 1.192 324.71 2123.50 1.190 324.56 2124.50 1.188 324.41 2125.50 1.186 324.25 2126.50 1.184 324.10 2127.50 1.182 323.95 2128.50 1.180 323.79 2129.50 1.177 323.64 2130.50 1.175 323.48 2131.50 1.173 323.32 2132.50 1.171 323.17 2133.50 1.168 323.01 2134.50 1.166 322.85 2135.50 1.164 322.69 2136.50 1.161 322.53 2137.50 1.159 322.37 2138.50 1.157 322.21 2139.50 1.154 322.05 2140.50 1.152 321.89 2141.50 1.149 321.73 2142.50 1.147 321.56 2143.50 1.144 321.40 2144.50 1.142 321.23 2145.50 1.139 321.07 2146.50 1.136 320.90 2147.50 1.134 320.73 2148.50 1.131 320.57 2149.50 1.128 320.40 2150.50 1.126 320.23 2151.50 1.123 320.06 2152.50 1.120 319.88 2153.50 1.117 319.71 2154.50 1.114 319.54 2155.50 1.111 319.37 2156.50 1.109 319.19 2157.50 1.106 319.01 2158.50 1.103 318.84 2159.50 1.100 318.66 2160.50 1.097 318.48 2161.50 1.093 318.30 2162.50 1.090 318.12 2163.50 1.087 317.94 2164.50 1.084 317.76 2165.50 1.081 317.57 2166.50 1.078 317.39 2167.50 1.074 317.20 2168.50 1.071 317.01 2169.50 1.068 316.82 2170.50 1.065 316.64 2171.50 1.061 316.44 2172.50 1.058 316.25 2173.50 1.054 316.06 2174.50 1.051 315.86 2175.50 1.047 315.67 2176.50 1.044 315.47 2177.50 1.040 315.27 2178.50 1.037 315.07 2179.50 1.033 314.87 2180.50 1.029 314.67 2181.50 1.026 314.46 2182.50 1.022 314.26 2183.50 1.018 314.05 2184.50 1.014 313.84 2185.50 1.010 313.63 2186.50 1.007 313.42 2187.50 1.003 313.21 2188.50 0.999 312.99 2189.50 0.995 312.77 2190.50 0.991 312.56 2191.50 0.987 312.34 2192.50 0.983 312.11 2193.50 0.978 311.89 2194.50 0.974 311.66 2195.50 0.970 311.43 2196.50 0.966 311.20 2197.50 0.961 310.97 2198.50 0.957 310.74 2199.50 0.953 310.50 2200.50 0.948 310.26 2201.50 0.944 310.02 2202.50 0.939 309.78 2203.50 0.935 309.53 2204.50 0.930 309.29 2205.50 0.926 309.04 2206.50 0.921 308.78 2207.50 0.916 308.53 2208.50 0.912 308.27 2209.50 0.907 308.01 2210.50 0.902 307.75 2211.50 0.897 307.48 2212.50 0.892 307.21 2213.50 0.887 306.94 2214.50 0.882 306.66 2215.50 0.877 306.38 2216.50 0.872 306.10 2217.50 0.867 305.82 2218.50 0.862 305.53 2219.50 0.857 305.24 2220.50 0.851 304.94 2221.50 0.846 304.64 2222.50 0.841 304.34 2223.50 0.835 304.03 2224.50 0.830 303.72 2225.50 0.824 303.41 2226.50 0.818 303.09 2227.50 0.813 302.76 2228.50 0.807 302.43 2229.50 0.801 302.10 2230.50 0.795 301.76 2231.50 0.790 301.42 2232.50 0.784 301.07 2233.50 0.778 300.72 2234.50 0.771 300.36 2235.50 0.765 299.99 2236.50 0.759 299.62 2237.50 0.753 299.24 2238.50 0.746 298.86 2239.50 0.740 298.47 2240.50 0.734 298.07 2241.50 0.727 297.67 2242.50 0.720 297.26 2243.50 0.714 296.84 2244.50 0.707 296.41 2245.50 0.700 295.98 2246.50 0.693 295.53 2247.50 0.686 295.08 2248.50 0.679 294.62 2249.50 0.672 294.14 2250.50 0.665 293.66 2251.50 0.657 293.17 2252.50 0.650 292.66 2253.50 0.642 292.14 2254.50 0.634 291.62 2255.50 0.627 291.07 2256.50 0.619 290.52 2257.50 0.611 289.95 2258.50 0.603 289.36 2259.50 0.595 288.76 2260.50 0.586 288.14 2261.50 0.578 287.51 2262.50 0.569 286.85 2263.50 0.560 286.17
| Double Star Calculator: | Version 1.2 ($Rev: 2397 $) |
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| Report created: |
2026-06-25 15:19:05 |