| WDS: | BU311 | WDS ID/Discoverer |
| P: | 596.450 | Orbital period (years) |
| a: | 1.029 | Semi-major axis (arcseconds) |
| i: | 62.0 | Inclination (degrees) |
| Ω: | 124.3 | Longitude of ascending node (degrees) |
| T: | 1980.980 | Epoch of periastron passage (year) |
| e: | 0.532 | Eccentricity |
| ω: | 345.0 | Longitude of periastron (degrees) |
| Start-Year: | 1726.775 | Year |
| End-Year: | 2323.225 | Year |
| Epoch: | 2026.5 | Besselian Epoch |
Further data from the WDS Sixth Catalog of Orbits for BU311 |
||
| Position: | 042656.93-240452.8 | Epoch-2000 right ascension and declination |
| WDS-ID: | 04269-2405 | WDS designation |
| Discoverer Code: | BU311 | Discover designation and components |
| ADS number: | 3230 | Aitken Double Star catalog |
| HD number: | 28312 | HD catalog number |
| Hipparcos number: | 20765 | Hipparcos catalog number |
| V1: | 6.67 | Magnitude of the primary |
| V2: | 7.09 | Magnitude of the secondary |
| Equinox: | 2000 | Equinox |
| Date: | 1999 | Date of last observation |
| Orbit grade: | 4 | Orbit grade, ranging from : 1 = Definitive 2 = Good 3 = Reliable 4 = Preliminary 5 = Indeterminate |
| Flags: | Flags | |
| Ephemerides: | Ephemerides | |
| Code: | Sca2003b | 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 0.400 172.04 -------------------------- 1726.78 1.546 301.80 1727.78 1.545 301.91 1728.78 1.545 302.01 1729.78 1.544 302.12 1730.78 1.543 302.23 1731.78 1.542 302.33 1732.78 1.541 302.44 1733.78 1.540 302.55 1734.78 1.539 302.65 1735.78 1.538 302.76 1736.78 1.537 302.87 1737.78 1.536 302.98 1738.78 1.534 303.09 1739.78 1.533 303.19 1740.78 1.532 303.30 1741.78 1.530 303.41 1742.78 1.529 303.52 1743.78 1.528 303.63 1744.78 1.526 303.74 1745.78 1.525 303.85 1746.78 1.523 303.95 1747.78 1.521 304.06 1748.78 1.520 304.17 1749.78 1.518 304.28 1750.78 1.516 304.39 1751.78 1.514 304.51 1752.78 1.512 304.62 1753.78 1.510 304.73 1754.78 1.509 304.84 1755.78 1.507 304.95 1756.78 1.504 305.06 1757.78 1.502 305.18 1758.78 1.500 305.29 1759.78 1.498 305.40 1760.78 1.496 305.51 1761.78 1.493 305.63 1762.78 1.491 305.74 1763.78 1.489 305.86 1764.78 1.486 305.97 1765.78 1.484 306.09 1766.78 1.481 306.20 1767.78 1.479 306.32 1768.78 1.476 306.43 1769.78 1.473 306.55 1770.78 1.471 306.67 1771.78 1.468 306.79 1772.78 1.465 306.90 1773.78 1.462 307.02 1774.78 1.459 307.14 1775.78 1.456 307.26 1776.78 1.453 307.38 1777.78 1.450 307.50 1778.78 1.447 307.62 1779.78 1.444 307.75 1780.78 1.440 307.87 1781.78 1.437 307.99 1782.78 1.434 308.11 1783.78 1.430 308.24 1784.78 1.427 308.36 1785.78 1.423 308.49 1786.78 1.420 308.61 1787.78 1.416 308.74 1788.78 1.413 308.87 1789.78 1.409 308.99 1790.78 1.405 309.12 1791.78 1.401 309.25 1792.78 1.398 309.38 1793.78 1.394 309.51 1794.78 1.390 309.64 1795.78 1.386 309.77 1796.78 1.382 309.91 1797.78 1.378 310.04 1798.78 1.373 310.17 1799.78 1.369 310.31 1800.78 1.365 310.45 1801.78 1.361 310.58 1802.78 1.356 310.72 1803.78 1.352 310.86 1804.78 1.347 311.00 1805.78 1.343 311.14 1806.78 1.338 311.28 1807.78 1.333 311.42 1808.78 1.329 311.57 1809.78 1.324 311.71 1810.78 1.319 311.86 1811.78 1.314 312.00 1812.78 1.309 312.15 1813.78 1.304 312.30 1814.78 1.299 312.45 1815.78 1.294 312.60 1816.78 1.289 312.75 1817.78 1.284 312.91 1818.78 1.279 313.06 1819.78 1.273 313.22 1820.78 1.268 313.37 1821.78 1.262 313.53 1822.78 1.257 313.69 1823.78 1.251 313.85 1824.78 1.246 314.02 1825.78 1.240 314.18 1826.78 1.234 314.35 1827.78 1.229 314.51 1828.78 1.223 314.68 1829.78 1.217 314.85 1830.78 1.211 315.03 1831.78 1.205 315.20 1832.78 1.199 315.38 1833.78 1.193 315.55 1834.78 1.187 315.73 1835.78 1.180 315.92 1836.78 1.174 316.10 1837.78 1.168 316.28 1838.78 1.161 316.47 1839.78 1.155 316.66 1840.78 1.148 316.85 1841.78 1.142 317.05 1842.78 1.135 317.24 1843.78 1.128 317.44 1844.78 1.122 317.64 1845.78 1.115 317.84 1846.78 1.108 318.05 1847.78 1.101 318.26 1848.78 1.094 318.47 1849.78 1.087 318.68 1850.78 1.080 318.90 1851.78 1.072 319.12 1852.78 1.065 319.34 1853.78 1.058 319.57 1854.78 1.051 319.80 1855.78 1.043 320.03 1856.78 1.036 320.26 1857.78 1.028 320.50 1858.78 1.020 320.74 1859.78 1.013 320.99 1860.78 1.005 321.24 1861.78 0.997 321.49 1862.78 0.989 321.75 1863.78 0.981 322.01 1864.78 0.973 322.28 1865.78 0.965 322.55 1866.78 0.957 322.82 1867.78 0.949 323.10 1868.78 0.941 323.39 1869.78 0.932 323.68 1870.78 0.924 323.97 1871.78 0.916 324.27 1872.78 0.907 324.58 1873.78 0.899 324.89 1874.78 0.890 325.21 1875.78 0.881 325.53 1876.78 0.873 325.86 1877.78 0.864 326.20 1878.78 0.855 326.54 1879.78 0.846 326.89 1880.78 0.837 327.25 1881.78 0.828 327.62 1882.78 0.819 327.99 1883.78 0.810 328.38 1884.78 0.801 328.77 1885.78 0.792 329.17 1886.78 0.782 329.58 1887.78 0.773 330.00 1888.78 0.764 330.43 1889.78 0.754 330.87 1890.78 0.745 331.32 1891.78 0.735 331.79 1892.78 0.725 332.26 1893.78 0.716 332.75 1894.78 0.706 333.26 1895.78 0.696 333.77 1896.78 0.687 334.30 1897.78 0.677 334.85 1898.78 0.667 335.41 1899.78 0.657 335.99 1900.78 0.647 336.59 1901.78 0.637 337.20 1902.78 0.627 337.84 1903.78 0.617 338.50 1904.78 0.607 339.17 1905.78 0.597 339.87 1906.78 0.587 340.60 1907.78 0.577 341.35 1908.78 0.567 342.12 1909.78 0.557 342.93 1910.78 0.547 343.76 1911.78 0.537 344.62 1912.78 0.527 345.52 1913.78 0.517 346.45 1914.78 0.507 347.42 1915.78 0.498 348.42 1916.78 0.488 349.47 1917.78 0.478 350.56 1918.78 0.468 351.70 1919.78 0.459 352.88 1920.78 0.449 354.11 1921.78 0.440 355.40 1922.78 0.430 356.74 1923.78 0.421 358.15 1924.78 0.412 359.61 1925.78 0.403 1.14 1926.78 0.395 2.74 1927.78 0.386 4.40 1928.78 0.378 6.15 1929.78 0.370 7.96 1930.78 0.362 9.86 1931.78 0.355 11.84 1932.78 0.348 13.90 1933.78 0.341 16.04 1934.78 0.334 18.27 1935.78 0.328 20.59 1936.78 0.323 22.98 1937.78 0.318 25.46 1938.78 0.313 28.01 1939.78 0.309 30.63 1940.78 0.306 33.32 1941.78 0.303 36.07 1942.78 0.300 38.87 1943.78 0.298 41.71 1944.78 0.297 44.58 1945.78 0.296 47.46 1946.78 0.296 50.36 1947.78 0.297 53.25 1948.78 0.298 56.12 1949.78 0.300 58.96 1950.78 0.302 61.77 1951.78 0.305 64.53 1952.78 0.308 67.23 1953.78 0.312 69.88 1954.78 0.316 72.45 1955.78 0.321 74.96 1956.78 0.326 77.39 1957.78 0.331 79.74 1958.78 0.337 82.02 1959.78 0.343 84.22 1960.78 0.349 86.35 1961.78 0.355 88.40 1962.78 0.362 90.37 1963.78 0.368 92.28 1964.78 0.375 94.12 1965.78 0.382 95.90 1966.78 0.388 97.61 1967.78 0.395 99.27 1968.78 0.402 100.87 1969.78 0.408 102.42 1970.78 0.415 103.92 1971.78 0.421 105.38 1972.78 0.427 106.79 1973.78 0.433 108.16 1974.78 0.439 109.50 1975.78 0.444 110.80 1976.78 0.450 112.07 1977.78 0.455 113.31 1978.78 0.459 114.53 1979.78 0.464 115.72 1980.78 0.468 116.89 1981.78 0.472 118.04 1982.78 0.475 119.18 1983.78 0.479 120.29 1984.78 0.481 121.40 1985.78 0.484 122.49 1986.78 0.486 123.57 1987.78 0.488 124.64 1988.78 0.489 125.70 1989.78 0.491 126.76 1990.78 0.491 127.81 1991.78 0.492 128.86 1992.78 0.492 129.91 1993.78 0.492 130.96 1994.78 0.491 132.01 1995.78 0.491 133.07 1996.78 0.490 134.12 1997.78 0.488 135.19 1998.78 0.487 136.26 1999.78 0.485 137.33 2000.78 0.483 138.41 2001.78 0.481 139.51 2002.78 0.479 140.61 2003.78 0.476 141.73 2004.78 0.473 142.85 2005.78 0.470 144.00 2006.78 0.467 145.15 2007.78 0.464 146.32 2008.78 0.461 147.51 2009.78 0.457 148.72 2010.78 0.454 149.94 2011.78 0.450 151.19 2012.78 0.447 152.45 2013.78 0.443 153.73 2014.78 0.439 155.04 2015.78 0.436 156.36 2016.78 0.432 157.71 2017.78 0.429 159.09 2018.78 0.425 160.48 2019.78 0.422 161.90 2020.78 0.418 163.34 2021.78 0.415 164.80 2022.78 0.411 166.29 2023.78 0.408 167.81 2024.78 0.405 169.34 2025.78 0.402 170.90 2026.78 0.400 172.48 2027.78 0.397 174.08 2028.78 0.395 175.70 2029.78 0.392 177.34 2030.78 0.390 179.00 2031.78 0.389 180.67 2032.78 0.387 182.36 2033.78 0.386 184.06 2034.78 0.384 185.78 2035.78 0.383 187.50 2036.78 0.383 189.23 2037.78 0.382 190.97 2038.78 0.382 192.71 2039.78 0.382 194.45 2040.78 0.382 196.19 2041.78 0.383 197.92 2042.78 0.384 199.65 2043.78 0.385 201.37 2044.78 0.386 203.08 2045.78 0.388 204.78 2046.78 0.390 206.46 2047.78 0.392 208.13 2048.78 0.394 209.77 2049.78 0.396 211.40 2050.78 0.399 213.01 2051.78 0.402 214.59 2052.78 0.405 216.15 2053.78 0.409 217.68 2054.78 0.413 219.18 2055.78 0.416 220.66 2056.78 0.421 222.11 2057.78 0.425 223.54 2058.78 0.429 224.93 2059.78 0.434 226.29 2060.78 0.439 227.63 2061.78 0.444 228.93 2062.78 0.449 230.21 2063.78 0.454 231.45 2064.78 0.459 232.67 2065.78 0.465 233.86 2066.78 0.471 235.02 2067.78 0.477 236.15 2068.78 0.482 237.26 2069.78 0.488 238.34 2070.78 0.495 239.39 2071.78 0.501 240.41 2072.78 0.507 241.41 2073.78 0.514 242.39 2074.78 0.520 243.34 2075.78 0.527 244.27 2076.78 0.533 245.17 2077.78 0.540 246.06 2078.78 0.547 246.92 2079.78 0.554 247.76 2080.78 0.560 248.57 2081.78 0.567 249.37 2082.78 0.574 250.15 2083.78 0.581 250.91 2084.78 0.588 251.66 2085.78 0.596 252.38 2086.78 0.603 253.09 2087.78 0.610 253.78 2088.78 0.617 254.45 2089.78 0.624 255.11 2090.78 0.632 255.76 2091.78 0.639 256.39 2092.78 0.646 257.00 2093.78 0.653 257.61 2094.78 0.661 258.19 2095.78 0.668 258.77 2096.78 0.675 259.33 2097.78 0.683 259.88 2098.78 0.690 260.42 2099.78 0.697 260.95 2100.78 0.705 261.47 2101.78 0.712 261.97 2102.78 0.719 262.47 2103.78 0.727 262.96 2104.78 0.734 263.43 2105.78 0.741 263.90 2106.78 0.749 264.36 2107.78 0.756 264.81 2108.78 0.763 265.25 2109.78 0.770 265.68 2110.78 0.778 266.10 2111.78 0.785 266.52 2112.78 0.792 266.93 2113.78 0.799 267.33 2114.78 0.807 267.72 2115.78 0.814 268.11 2116.78 0.821 268.49 2117.78 0.828 268.86 2118.78 0.835 269.23 2119.78 0.842 269.59 2120.78 0.850 269.95 2121.78 0.857 270.30 2122.78 0.864 270.64 2123.78 0.871 270.98 2124.78 0.878 271.31 2125.78 0.885 271.64 2126.78 0.892 271.96 2127.78 0.898 272.28 2128.78 0.905 272.59 2129.78 0.912 272.90 2130.78 0.919 273.20 2131.78 0.926 273.50 2132.78 0.933 273.79 2133.78 0.939 274.08 2134.78 0.946 274.37 2135.78 0.953 274.65 2136.78 0.960 274.93 2137.78 0.966 275.20 2138.78 0.973 275.47 2139.78 0.979 275.74 2140.78 0.986 276.00 2141.78 0.992 276.26 2142.78 0.999 276.52 2143.78 1.005 276.77 2144.78 1.012 277.02 2145.78 1.018 277.27 2146.78 1.025 277.51 2147.78 1.031 277.75 2148.78 1.037 277.99 2149.78 1.043 278.22 2150.78 1.050 278.45 2151.78 1.056 278.68 2152.78 1.062 278.91 2153.78 1.068 279.13 2154.78 1.074 279.36 2155.78 1.080 279.57 2156.78 1.086 279.79 2157.78 1.092 280.00 2158.78 1.098 280.22 2159.78 1.104 280.43 2160.78 1.110 280.63 2161.78 1.116 280.84 2162.78 1.122 281.04 2163.78 1.128 281.24 2164.78 1.133 281.44 2165.78 1.139 281.64 2166.78 1.145 281.83 2167.78 1.150 282.03 2168.78 1.156 282.22 2169.78 1.161 282.41 2170.78 1.167 282.59 2171.78 1.172 282.78 2172.78 1.178 282.96 2173.78 1.183 283.15 2174.78 1.189 283.33 2175.78 1.194 283.50 2176.78 1.199 283.68 2177.78 1.205 283.86 2178.78 1.210 284.03 2179.78 1.215 284.21 2180.78 1.220 284.38 2181.78 1.225 284.55 2182.78 1.230 284.72 2183.78 1.235 284.88 2184.78 1.240 285.05 2185.78 1.245 285.21 2186.78 1.250 285.38 2187.78 1.255 285.54 2188.78 1.260 285.70 2189.78 1.265 285.86 2190.78 1.269 286.02 2191.78 1.274 286.17 2192.78 1.279 286.33 2193.78 1.284 286.48 2194.78 1.288 286.64 2195.78 1.293 286.79 2196.78 1.297 286.94 2197.78 1.302 287.09 2198.78 1.306 287.24 2199.78 1.311 287.39 2200.78 1.315 287.54 2201.78 1.319 287.68 2202.78 1.324 287.83 2203.78 1.328 287.97 2204.78 1.332 288.12 2205.78 1.336 288.26 2206.78 1.341 288.40 2207.78 1.345 288.54 2208.78 1.349 288.68 2209.78 1.353 288.82 2210.78 1.357 288.96 2211.78 1.361 289.10 2212.78 1.365 289.23 2213.78 1.368 289.37 2214.78 1.372 289.51 2215.78 1.376 289.64 2216.78 1.380 289.77 2217.78 1.384 289.91 2218.78 1.387 290.04 2219.78 1.391 290.17 2220.78 1.394 290.30 2221.78 1.398 290.43 2222.78 1.402 290.56 2223.78 1.405 290.69 2224.78 1.408 290.82 2225.78 1.412 290.95 2226.78 1.415 291.07 2227.78 1.419 291.20 2228.78 1.422 291.33 2229.78 1.425 291.45 2230.78 1.428 291.58 2231.78 1.431 291.70 2232.78 1.435 291.83 2233.78 1.438 291.95 2234.78 1.441 292.07 2235.78 1.444 292.19 2236.78 1.447 292.31 2237.78 1.450 292.44 2238.78 1.452 292.56 2239.78 1.455 292.68 2240.78 1.458 292.80 2241.78 1.461 292.92 2242.78 1.464 293.03 2243.78 1.466 293.15 2244.78 1.469 293.27 2245.78 1.471 293.39 2246.78 1.474 293.51 2247.78 1.477 293.62 2248.78 1.479 293.74 2249.78 1.481 293.85 2250.78 1.484 293.97 2251.78 1.486 294.09 2252.78 1.489 294.20 2253.78 1.491 294.31 2254.78 1.493 294.43 2255.78 1.495 294.54 2256.78 1.497 294.66 2257.78 1.499 294.77 2258.78 1.502 294.88 2259.78 1.504 294.99 2260.78 1.506 295.11 2261.78 1.507 295.22 2262.78 1.509 295.33 2263.78 1.511 295.44 2264.78 1.513 295.55 2265.78 1.515 295.66 2266.78 1.517 295.77 2267.78 1.518 295.88 2268.78 1.520 295.99 2269.78 1.522 296.10 2270.78 1.523 296.21 2271.78 1.525 296.32 2272.78 1.526 296.43 2273.78 1.528 296.54 2274.78 1.529 296.65 2275.78 1.530 296.76 2276.78 1.532 296.87 2277.78 1.533 296.98 2278.78 1.534 297.08 2279.78 1.535 297.19 2280.78 1.537 297.30 2281.78 1.538 297.41 2282.78 1.539 297.51 2283.78 1.540 297.62 2284.78 1.541 297.73 2285.78 1.542 297.84 2286.78 1.543 297.94 2287.78 1.543 298.05 2288.78 1.544 298.16 2289.78 1.545 298.26 2290.78 1.546 298.37 2291.78 1.546 298.47 2292.78 1.547 298.58 2293.78 1.548 298.69 2294.78 1.548 298.79 2295.78 1.549 298.90 2296.78 1.549 299.00 2297.78 1.550 299.11 2298.78 1.550 299.22 2299.78 1.550 299.32 2300.78 1.551 299.43 2301.78 1.551 299.53 2302.78 1.551 299.64 2303.78 1.551 299.74 2304.78 1.552 299.85 2305.78 1.552 299.96 2306.78 1.552 300.06 2307.78 1.552 300.17 2308.78 1.552 300.27 2309.78 1.552 300.38 2310.78 1.551 300.48 2311.78 1.551 300.59 2312.78 1.551 300.69 2313.78 1.551 300.80 2314.78 1.550 300.91 2315.78 1.550 301.01 2316.78 1.550 301.12 2317.78 1.549 301.22 2318.78 1.549 301.33 2319.78 1.548 301.43 2320.78 1.548 301.54 2321.78 1.547 301.65 2322.78 1.546 301.75
| Double Star Calculator: | Version 1.2 ($Rev: 2397 $) |
|
| Report created: |
2026-06-25 15:24:11 |