| WDS: | BU391AB | WDS ID/Discoverer |
| P: | 575.651 | Orbital period (years) |
| a: | 1.61369 | Semi-major axis (arcseconds) |
| i: | 98.715 | Inclination (degrees) |
| Ω: | 76.733 | Longitude of ascending node (degrees) |
| T: | 2087.659 | Epoch of periastron passage (year) |
| e: | 0.5022 | Eccentricity |
| ω: | 272.711 | Longitude of periastron (degrees) |
| Start-Year: | 1737.1747 | Year |
| End-Year: | 2312.8253 | Year |
| Epoch: | 2026.5 | Besselian Epoch |
Further data from the WDS Sixth Catalog of Orbits for BU391AB |
||
| Position: | 000921.02-275916.5 | Epoch-2000 right ascension and declination |
| WDS-ID: | 00094-2759 | WDS designation |
| Discoverer Code: | BU391AB | Discover designation and components |
| ADS number: | 111 | Aitken Double Star catalog |
| HD number: | 493 | HD catalog number |
| Hipparcos number: | 761 | Hipparcos catalog number |
| V1: | 6.13 | Magnitude of the primary |
| V2: | 6.24 | Magnitude of the secondary |
| Equinox: | Equinox | |
| Date: | 2013 | 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: | Izm2019 | 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 1.259 257.06 -------------------------- 1737.17 0.619 42.74 1738.17 0.611 42.18 1739.17 0.604 41.60 1740.17 0.596 41.01 1741.17 0.589 40.40 1742.17 0.581 39.77 1743.17 0.574 39.13 1744.17 0.567 38.48 1745.17 0.559 37.80 1746.17 0.552 37.11 1747.17 0.545 36.40 1748.17 0.538 35.68 1749.17 0.531 34.93 1750.17 0.524 34.16 1751.17 0.517 33.37 1752.17 0.510 32.57 1753.17 0.504 31.74 1754.17 0.497 30.88 1755.17 0.491 30.01 1756.17 0.484 29.11 1757.17 0.478 28.19 1758.17 0.472 27.24 1759.17 0.466 26.27 1760.17 0.460 25.27 1761.17 0.454 24.25 1762.17 0.448 23.20 1763.17 0.443 22.13 1764.17 0.437 21.03 1765.17 0.432 19.90 1766.17 0.427 18.74 1767.17 0.422 17.55 1768.17 0.417 16.34 1769.17 0.413 15.10 1770.17 0.408 13.83 1771.17 0.404 12.54 1772.17 0.400 11.22 1773.17 0.396 9.87 1774.17 0.392 8.50 1775.17 0.389 7.10 1776.17 0.386 5.68 1777.17 0.383 4.24 1778.17 0.380 2.77 1779.17 0.378 1.29 1780.17 0.376 359.78 1781.17 0.374 358.26 1782.17 0.372 356.72 1783.17 0.370 355.17 1784.17 0.369 353.61 1785.17 0.368 352.04 1786.17 0.367 350.46 1787.17 0.367 348.88 1788.17 0.367 347.30 1789.17 0.367 345.71 1790.17 0.367 344.13 1791.17 0.368 342.55 1792.17 0.369 340.98 1793.17 0.370 339.42 1794.17 0.372 337.86 1795.17 0.373 336.32 1796.17 0.375 334.80 1797.17 0.377 333.29 1798.17 0.380 331.80 1799.17 0.382 330.33 1800.17 0.385 328.89 1801.17 0.389 327.46 1802.17 0.392 326.06 1803.17 0.395 324.68 1804.17 0.399 323.33 1805.17 0.403 322.01 1806.17 0.407 320.71 1807.17 0.412 319.44 1808.17 0.416 318.19 1809.17 0.421 316.98 1810.17 0.426 315.79 1811.17 0.431 314.63 1812.17 0.436 313.49 1813.17 0.442 312.39 1814.17 0.447 311.31 1815.17 0.453 310.25 1816.17 0.459 309.23 1817.17 0.465 308.23 1818.17 0.471 307.25 1819.17 0.477 306.30 1820.17 0.483 305.37 1821.17 0.490 304.47 1822.17 0.496 303.59 1823.17 0.503 302.74 1824.17 0.509 301.91 1825.17 0.516 301.09 1826.17 0.523 300.30 1827.17 0.530 299.53 1828.17 0.537 298.78 1829.17 0.544 298.05 1830.17 0.551 297.34 1831.17 0.558 296.65 1832.17 0.566 295.97 1833.17 0.573 295.31 1834.17 0.580 294.67 1835.17 0.588 294.05 1836.17 0.595 293.44 1837.17 0.603 292.84 1838.17 0.610 292.26 1839.17 0.618 291.70 1840.17 0.625 291.14 1841.17 0.633 290.61 1842.17 0.641 290.08 1843.17 0.649 289.57 1844.17 0.656 289.06 1845.17 0.664 288.58 1846.17 0.672 288.10 1847.17 0.680 287.63 1848.17 0.687 287.17 1849.17 0.695 286.73 1850.17 0.703 286.29 1851.17 0.711 285.86 1852.17 0.719 285.45 1853.17 0.727 285.04 1854.17 0.735 284.64 1855.17 0.743 284.25 1856.17 0.751 283.86 1857.17 0.759 283.49 1858.17 0.766 283.12 1859.17 0.774 282.76 1860.17 0.782 282.41 1861.17 0.790 282.07 1862.17 0.798 281.73 1863.17 0.806 281.40 1864.17 0.814 281.07 1865.17 0.822 280.75 1866.17 0.830 280.44 1867.17 0.838 280.13 1868.17 0.846 279.83 1869.17 0.853 279.54 1870.17 0.861 279.25 1871.17 0.869 278.96 1872.17 0.877 278.68 1873.17 0.885 278.41 1874.17 0.893 278.14 1875.17 0.900 277.87 1876.17 0.908 277.61 1877.17 0.916 277.35 1878.17 0.924 277.10 1879.17 0.931 276.85 1880.17 0.939 276.61 1881.17 0.947 276.37 1882.17 0.954 276.13 1883.17 0.962 275.90 1884.17 0.970 275.67 1885.17 0.977 275.45 1886.17 0.985 275.22 1887.17 0.992 275.01 1888.17 1.000 274.79 1889.17 1.007 274.58 1890.17 1.015 274.37 1891.17 1.022 274.16 1892.17 1.029 273.96 1893.17 1.037 273.76 1894.17 1.044 273.56 1895.17 1.051 273.37 1896.17 1.058 273.18 1897.17 1.066 272.99 1898.17 1.073 272.80 1899.17 1.080 272.62 1900.17 1.087 272.44 1901.17 1.094 272.26 1902.17 1.101 272.08 1903.17 1.108 271.90 1904.17 1.115 271.73 1905.17 1.122 271.56 1906.17 1.128 271.39 1907.17 1.135 271.23 1908.17 1.142 271.06 1909.17 1.149 270.90 1910.17 1.155 270.74 1911.17 1.162 270.58 1912.17 1.168 270.42 1913.17 1.175 270.27 1914.17 1.181 270.11 1915.17 1.188 269.96 1916.17 1.194 269.81 1917.17 1.200 269.66 1918.17 1.206 269.51 1919.17 1.213 269.37 1920.17 1.219 269.22 1921.17 1.225 269.08 1922.17 1.231 268.94 1923.17 1.237 268.80 1924.17 1.243 268.66 1925.17 1.248 268.52 1926.17 1.254 268.39 1927.17 1.260 268.25 1928.17 1.265 268.12 1929.17 1.271 267.98 1930.17 1.276 267.85 1931.17 1.282 267.72 1932.17 1.287 267.59 1933.17 1.293 267.46 1934.17 1.298 267.34 1935.17 1.303 267.21 1936.17 1.308 267.09 1937.17 1.313 266.96 1938.17 1.318 266.84 1939.17 1.323 266.72 1940.17 1.327 266.59 1941.17 1.332 266.47 1942.17 1.337 266.35 1943.17 1.341 266.24 1944.17 1.346 266.12 1945.17 1.350 266.00 1946.17 1.354 265.88 1947.17 1.359 265.77 1948.17 1.363 265.65 1949.17 1.367 265.54 1950.17 1.371 265.42 1951.17 1.374 265.31 1952.17 1.378 265.20 1953.17 1.382 265.09 1954.17 1.385 264.97 1955.17 1.389 264.86 1956.17 1.392 264.75 1957.17 1.395 264.64 1958.17 1.399 264.53 1959.17 1.402 264.42 1960.17 1.405 264.32 1961.17 1.408 264.21 1962.17 1.410 264.10 1963.17 1.413 263.99 1964.17 1.415 263.89 1965.17 1.418 263.78 1966.17 1.420 263.67 1967.17 1.422 263.57 1968.17 1.424 263.46 1969.17 1.426 263.36 1970.17 1.428 263.25 1971.17 1.430 263.15 1972.17 1.431 263.05 1973.17 1.433 262.94 1974.17 1.434 262.84 1975.17 1.435 262.73 1976.17 1.436 262.63 1977.17 1.437 262.53 1978.17 1.438 262.42 1979.17 1.439 262.32 1980.17 1.439 262.22 1981.17 1.440 262.11 1982.17 1.440 262.01 1983.17 1.440 261.91 1984.17 1.440 261.81 1985.17 1.440 261.70 1986.17 1.439 261.60 1987.17 1.439 261.50 1988.17 1.438 261.39 1989.17 1.437 261.29 1990.17 1.436 261.19 1991.17 1.435 261.08 1992.17 1.434 260.98 1993.17 1.432 260.88 1994.17 1.430 260.77 1995.17 1.428 260.67 1996.17 1.426 260.56 1997.17 1.424 260.46 1998.17 1.422 260.35 1999.17 1.419 260.25 2000.17 1.416 260.14 2001.17 1.413 260.03 2002.17 1.410 259.93 2003.17 1.407 259.82 2004.17 1.403 259.71 2005.17 1.399 259.60 2006.17 1.395 259.49 2007.17 1.391 259.38 2008.17 1.386 259.27 2009.17 1.381 259.16 2010.17 1.376 259.05 2011.17 1.371 258.94 2012.17 1.366 258.82 2013.17 1.360 258.71 2014.17 1.354 258.59 2015.17 1.348 258.47 2016.17 1.342 258.36 2017.17 1.335 258.24 2018.17 1.328 258.12 2019.17 1.321 258.00 2020.17 1.313 257.87 2021.17 1.306 257.75 2022.17 1.298 257.62 2023.17 1.289 257.49 2024.17 1.281 257.36 2025.17 1.272 257.23 2026.17 1.262 257.10 2027.17 1.253 256.97 2028.17 1.243 256.83 2029.17 1.233 256.69 2030.17 1.222 256.55 2031.17 1.212 256.40 2032.17 1.200 256.26 2033.17 1.189 256.11 2034.17 1.177 255.96 2035.17 1.165 255.80 2036.17 1.152 255.64 2037.17 1.140 255.48 2038.17 1.126 255.31 2039.17 1.113 255.14 2040.17 1.099 254.97 2041.17 1.084 254.79 2042.17 1.070 254.60 2043.17 1.054 254.42 2044.17 1.039 254.22 2045.17 1.023 254.02 2046.17 1.007 253.81 2047.17 0.990 253.60 2048.17 0.973 253.38 2049.17 0.955 253.15 2050.17 0.937 252.91 2051.17 0.919 252.66 2052.17 0.900 252.40 2053.17 0.881 252.13 2054.17 0.861 251.85 2055.17 0.841 251.56 2056.17 0.820 251.25 2057.17 0.799 250.92 2058.17 0.778 250.58 2059.17 0.756 250.22 2060.17 0.734 249.83 2061.17 0.711 249.42 2062.17 0.688 248.99 2063.17 0.664 248.52 2064.17 0.640 248.02 2065.17 0.616 247.48 2066.17 0.591 246.89 2067.17 0.566 246.26 2068.17 0.541 245.56 2069.17 0.515 244.79 2070.17 0.489 243.95 2071.17 0.463 243.01 2072.17 0.437 241.95 2073.17 0.410 240.76 2074.17 0.383 239.40 2075.17 0.356 237.84 2076.17 0.329 236.02 2077.17 0.303 233.88 2078.17 0.276 231.33 2079.17 0.250 228.24 2080.17 0.224 224.43 2081.17 0.200 219.67 2082.17 0.177 213.64 2083.17 0.157 205.93 2084.17 0.140 196.12 2085.17 0.128 184.05 2086.17 0.122 170.21 2087.17 0.124 155.94 2088.17 0.133 142.86 2089.17 0.148 131.91 2090.17 0.166 123.19 2091.17 0.188 116.36 2092.17 0.212 111.01 2093.17 0.237 106.76 2094.17 0.263 103.33 2095.17 0.289 100.53 2096.17 0.316 98.19 2097.17 0.343 96.22 2098.17 0.370 94.53 2099.17 0.396 93.08 2100.17 0.423 91.80 2101.17 0.449 90.68 2102.17 0.476 89.68 2103.17 0.502 88.79 2104.17 0.527 87.98 2105.17 0.553 87.25 2106.17 0.578 86.58 2107.17 0.602 85.97 2108.17 0.627 85.41 2109.17 0.651 84.88 2110.17 0.674 84.40 2111.17 0.697 83.94 2112.17 0.720 83.52 2113.17 0.742 83.12 2114.17 0.763 82.74 2115.17 0.785 82.38 2116.17 0.805 82.05 2117.17 0.826 81.72 2118.17 0.845 81.42 2119.17 0.865 81.13 2120.17 0.884 80.85 2121.17 0.902 80.58 2122.17 0.920 80.32 2123.17 0.938 80.08 2124.17 0.955 79.84 2125.17 0.972 79.61 2126.17 0.988 79.39 2127.17 1.004 79.17 2128.17 1.019 78.96 2129.17 1.034 78.76 2130.17 1.048 78.56 2131.17 1.063 78.37 2132.17 1.076 78.18 2133.17 1.090 78.00 2134.17 1.102 77.83 2135.17 1.115 77.65 2136.17 1.127 77.48 2137.17 1.139 77.32 2138.17 1.150 77.15 2139.17 1.161 76.99 2140.17 1.172 76.84 2141.17 1.182 76.68 2142.17 1.192 76.53 2143.17 1.202 76.38 2144.17 1.211 76.24 2145.17 1.220 76.09 2146.17 1.228 75.95 2147.17 1.237 75.81 2148.17 1.245 75.67 2149.17 1.252 75.53 2150.17 1.260 75.40 2151.17 1.267 75.26 2152.17 1.273 75.13 2153.17 1.280 75.00 2154.17 1.286 74.87 2155.17 1.292 74.74 2156.17 1.298 74.61 2157.17 1.303 74.49 2158.17 1.308 74.36 2159.17 1.313 74.24 2160.17 1.317 74.12 2161.17 1.322 73.99 2162.17 1.326 73.87 2163.17 1.330 73.75 2164.17 1.333 73.63 2165.17 1.337 73.51 2166.17 1.340 73.39 2167.17 1.343 73.27 2168.17 1.346 73.15 2169.17 1.348 73.04 2170.17 1.350 72.92 2171.17 1.353 72.80 2172.17 1.354 72.69 2173.17 1.356 72.57 2174.17 1.358 72.45 2175.17 1.359 72.34 2176.17 1.360 72.22 2177.17 1.361 72.11 2178.17 1.362 71.99 2179.17 1.362 71.88 2180.17 1.363 71.76 2181.17 1.363 71.65 2182.17 1.363 71.53 2183.17 1.363 71.42 2184.17 1.363 71.30 2185.17 1.362 71.19 2186.17 1.362 71.07 2187.17 1.361 70.96 2188.17 1.360 70.84 2189.17 1.359 70.73 2190.17 1.358 70.61 2191.17 1.356 70.50 2192.17 1.355 70.38 2193.17 1.353 70.26 2194.17 1.352 70.15 2195.17 1.350 70.03 2196.17 1.348 69.91 2197.17 1.346 69.79 2198.17 1.343 69.68 2199.17 1.341 69.56 2200.17 1.338 69.44 2201.17 1.336 69.32 2202.17 1.333 69.20 2203.17 1.330 69.08 2204.17 1.327 68.96 2205.17 1.324 68.84 2206.17 1.321 68.72 2207.17 1.317 68.59 2208.17 1.314 68.47 2209.17 1.310 68.35 2210.17 1.307 68.22 2211.17 1.303 68.10 2212.17 1.299 67.97 2213.17 1.295 67.84 2214.17 1.291 67.71 2215.17 1.287 67.59 2216.17 1.283 67.46 2217.17 1.278 67.33 2218.17 1.274 67.20 2219.17 1.269 67.06 2220.17 1.265 66.93 2221.17 1.260 66.80 2222.17 1.255 66.66 2223.17 1.250 66.53 2224.17 1.245 66.39 2225.17 1.240 66.25 2226.17 1.235 66.11 2227.17 1.230 65.97 2228.17 1.225 65.83 2229.17 1.219 65.69 2230.17 1.214 65.54 2231.17 1.208 65.40 2232.17 1.203 65.25 2233.17 1.197 65.10 2234.17 1.191 64.95 2235.17 1.186 64.80 2236.17 1.180 64.65 2237.17 1.174 64.49 2238.17 1.168 64.34 2239.17 1.162 64.18 2240.17 1.156 64.02 2241.17 1.150 63.86 2242.17 1.143 63.70 2243.17 1.137 63.54 2244.17 1.131 63.37 2245.17 1.124 63.20 2246.17 1.118 63.03 2247.17 1.111 62.86 2248.17 1.105 62.69 2249.17 1.098 62.51 2250.17 1.092 62.33 2251.17 1.085 62.15 2252.17 1.078 61.97 2253.17 1.071 61.79 2254.17 1.064 61.60 2255.17 1.058 61.41 2256.17 1.051 61.22 2257.17 1.044 61.02 2258.17 1.037 60.83 2259.17 1.030 60.63 2260.17 1.022 60.42 2261.17 1.015 60.22 2262.17 1.008 60.01 2263.17 1.001 59.80 2264.17 0.994 59.58 2265.17 0.986 59.36 2266.17 0.979 59.14 2267.17 0.972 58.92 2268.17 0.964 58.69 2269.17 0.957 58.46 2270.17 0.949 58.23 2271.17 0.942 57.99 2272.17 0.934 57.74 2273.17 0.927 57.50 2274.17 0.919 57.25 2275.17 0.912 56.99 2276.17 0.904 56.73 2277.17 0.896 56.47 2278.17 0.889 56.20 2279.17 0.881 55.93 2280.17 0.873 55.65 2281.17 0.865 55.37 2282.17 0.858 55.08 2283.17 0.850 54.79 2284.17 0.842 54.49 2285.17 0.834 54.19 2286.17 0.827 53.88 2287.17 0.819 53.56 2288.17 0.811 53.24 2289.17 0.803 52.91 2290.17 0.795 52.58 2291.17 0.787 52.24 2292.17 0.779 51.89 2293.17 0.772 51.54 2294.17 0.764 51.17 2295.17 0.756 50.81 2296.17 0.748 50.43 2297.17 0.740 50.04 2298.17 0.732 49.65 2299.17 0.724 49.25 2300.17 0.717 48.84 2301.17 0.709 48.42 2302.17 0.701 47.99 2303.17 0.693 47.55 2304.17 0.685 47.10 2305.17 0.678 46.64 2306.17 0.670 46.17 2307.17 0.662 45.69 2308.17 0.654 45.19 2309.17 0.647 44.69 2310.17 0.639 44.17 2311.17 0.631 43.64 2312.17 0.624 43.10
| Double Star Calculator: | Version 1.2 ($Rev: 2397 $) |
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| Report created: |
2026-06-25 14:35:50 |