| WDS: | BU139AB | WDS ID/Discoverer |
| P: | 587.000 | Orbital period (years) |
| a: | 0.552 | Semi-major axis (arcseconds) |
| i: | 95.4 | Inclination (degrees) |
| Ω: | 136.4 | Longitude of ascending node (degrees) |
| T: | 2128.700 | Epoch of periastron passage (year) |
| e: | 0.533 | Eccentricity |
| ω: | 133.8 | Longitude of periastron (degrees) |
| Start-Year: | 1731.5 | Year |
| End-Year: | 2318.5 | Year |
| Epoch: | 2026.5 | Besselian Epoch |
Further data from the WDS Sixth Catalog of Orbits for BU139AB |
||
| Position: | 191234.45+165047.2 | Epoch-2000 right ascension and declination |
| WDS-ID: | 19126+1651 | WDS designation |
| Discoverer Code: | BU139AB | Discover designation and components |
| ADS number: | 12160 | Aitken Double Star catalog |
| HD number: | 179588 | HD catalog number |
| Hipparcos number: | 94377 | Hipparcos catalog number |
| V1: | 7.11 | Magnitude of the primary |
| V2: | 7.95 | 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: | Zir2013a | 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 0.561 135.55 -------------------------- 1731.50 0.264 151.39 1732.50 0.267 151.18 1733.50 0.271 150.97 1734.50 0.275 150.77 1735.50 0.279 150.58 1736.50 0.282 150.39 1737.50 0.286 150.20 1738.50 0.290 150.02 1739.50 0.294 149.85 1740.50 0.297 149.68 1741.50 0.301 149.51 1742.50 0.305 149.35 1743.50 0.308 149.19 1744.50 0.312 149.04 1745.50 0.316 148.89 1746.50 0.319 148.74 1747.50 0.323 148.59 1748.50 0.326 148.45 1749.50 0.330 148.31 1750.50 0.334 148.18 1751.50 0.337 148.05 1752.50 0.341 147.92 1753.50 0.344 147.79 1754.50 0.348 147.67 1755.50 0.352 147.54 1756.50 0.355 147.43 1757.50 0.359 147.31 1758.50 0.362 147.19 1759.50 0.366 147.08 1760.50 0.369 146.97 1761.50 0.373 146.86 1762.50 0.376 146.76 1763.50 0.379 146.65 1764.50 0.383 146.55 1765.50 0.386 146.45 1766.50 0.390 146.35 1767.50 0.393 146.25 1768.50 0.397 146.16 1769.50 0.400 146.06 1770.50 0.403 145.97 1771.50 0.407 145.88 1772.50 0.410 145.79 1773.50 0.413 145.70 1774.50 0.417 145.62 1775.50 0.420 145.53 1776.50 0.423 145.45 1777.50 0.426 145.37 1778.50 0.430 145.29 1779.50 0.433 145.21 1780.50 0.436 145.13 1781.50 0.439 145.05 1782.50 0.442 144.97 1783.50 0.446 144.90 1784.50 0.449 144.82 1785.50 0.452 144.75 1786.50 0.455 144.68 1787.50 0.458 144.61 1788.50 0.461 144.54 1789.50 0.464 144.47 1790.50 0.467 144.40 1791.50 0.471 144.33 1792.50 0.474 144.26 1793.50 0.477 144.20 1794.50 0.480 144.13 1795.50 0.483 144.07 1796.50 0.486 144.00 1797.50 0.489 143.94 1798.50 0.492 143.88 1799.50 0.494 143.82 1800.50 0.497 143.76 1801.50 0.500 143.70 1802.50 0.503 143.64 1803.50 0.506 143.58 1804.50 0.509 143.52 1805.50 0.512 143.47 1806.50 0.515 143.41 1807.50 0.517 143.35 1808.50 0.520 143.30 1809.50 0.523 143.24 1810.50 0.526 143.19 1811.50 0.528 143.14 1812.50 0.531 143.08 1813.50 0.534 143.03 1814.50 0.537 142.98 1815.50 0.539 142.93 1816.50 0.542 142.88 1817.50 0.545 142.83 1818.50 0.547 142.78 1819.50 0.550 142.73 1820.50 0.552 142.68 1821.50 0.555 142.63 1822.50 0.558 142.58 1823.50 0.560 142.53 1824.50 0.563 142.49 1825.50 0.565 142.44 1826.50 0.568 142.39 1827.50 0.570 142.35 1828.50 0.573 142.30 1829.50 0.575 142.26 1830.50 0.577 142.21 1831.50 0.580 142.17 1832.50 0.582 142.12 1833.50 0.585 142.08 1834.50 0.587 142.03 1835.50 0.589 141.99 1836.50 0.592 141.95 1837.50 0.594 141.91 1838.50 0.596 141.86 1839.50 0.598 141.82 1840.50 0.601 141.78 1841.50 0.603 141.74 1842.50 0.605 141.70 1843.50 0.607 141.66 1844.50 0.609 141.62 1845.50 0.611 141.58 1846.50 0.614 141.54 1847.50 0.616 141.50 1848.50 0.618 141.46 1849.50 0.620 141.42 1850.50 0.622 141.38 1851.50 0.624 141.35 1852.50 0.626 141.31 1853.50 0.628 141.27 1854.50 0.630 141.23 1855.50 0.632 141.19 1856.50 0.634 141.16 1857.50 0.636 141.12 1858.50 0.637 141.08 1859.50 0.639 141.05 1860.50 0.641 141.01 1861.50 0.643 140.97 1862.50 0.645 140.94 1863.50 0.647 140.90 1864.50 0.648 140.87 1865.50 0.650 140.83 1866.50 0.652 140.80 1867.50 0.653 140.76 1868.50 0.655 140.73 1869.50 0.657 140.69 1870.50 0.658 140.66 1871.50 0.660 140.62 1872.50 0.662 140.59 1873.50 0.663 140.56 1874.50 0.665 140.52 1875.50 0.666 140.49 1876.50 0.668 140.46 1877.50 0.669 140.42 1878.50 0.671 140.39 1879.50 0.672 140.36 1880.50 0.674 140.32 1881.50 0.675 140.29 1882.50 0.676 140.26 1883.50 0.678 140.23 1884.50 0.679 140.19 1885.50 0.680 140.16 1886.50 0.682 140.13 1887.50 0.683 140.10 1888.50 0.684 140.06 1889.50 0.685 140.03 1890.50 0.686 140.00 1891.50 0.688 139.97 1892.50 0.689 139.94 1893.50 0.690 139.91 1894.50 0.691 139.88 1895.50 0.692 139.84 1896.50 0.693 139.81 1897.50 0.694 139.78 1898.50 0.695 139.75 1899.50 0.696 139.72 1900.50 0.697 139.69 1901.50 0.698 139.66 1902.50 0.699 139.63 1903.50 0.700 139.60 1904.50 0.701 139.57 1905.50 0.701 139.54 1906.50 0.702 139.51 1907.50 0.703 139.48 1908.50 0.704 139.45 1909.50 0.704 139.42 1910.50 0.705 139.39 1911.50 0.706 139.36 1912.50 0.706 139.33 1913.50 0.707 139.30 1914.50 0.708 139.27 1915.50 0.708 139.24 1916.50 0.709 139.21 1917.50 0.709 139.18 1918.50 0.710 139.15 1919.50 0.710 139.12 1920.50 0.711 139.09 1921.50 0.711 139.06 1922.50 0.711 139.03 1923.50 0.712 139.00 1924.50 0.712 138.97 1925.50 0.712 138.94 1926.50 0.713 138.91 1927.50 0.713 138.89 1928.50 0.713 138.86 1929.50 0.713 138.83 1930.50 0.713 138.80 1931.50 0.714 138.77 1932.50 0.714 138.74 1933.50 0.714 138.71 1934.50 0.714 138.68 1935.50 0.714 138.65 1936.50 0.714 138.62 1937.50 0.714 138.59 1938.50 0.714 138.56 1939.50 0.713 138.53 1940.50 0.713 138.51 1941.50 0.713 138.48 1942.50 0.713 138.45 1943.50 0.713 138.42 1944.50 0.712 138.39 1945.50 0.712 138.36 1946.50 0.712 138.33 1947.50 0.711 138.30 1948.50 0.711 138.27 1949.50 0.711 138.24 1950.50 0.710 138.21 1951.50 0.710 138.18 1952.50 0.709 138.15 1953.50 0.709 138.12 1954.50 0.708 138.09 1955.50 0.707 138.06 1956.50 0.707 138.03 1957.50 0.706 138.00 1958.50 0.705 137.97 1959.50 0.705 137.94 1960.50 0.704 137.91 1961.50 0.703 137.88 1962.50 0.702 137.85 1963.50 0.701 137.82 1964.50 0.700 137.79 1965.50 0.699 137.76 1966.50 0.698 137.73 1967.50 0.697 137.70 1968.50 0.696 137.67 1969.50 0.695 137.64 1970.50 0.694 137.61 1971.50 0.693 137.58 1972.50 0.692 137.55 1973.50 0.690 137.52 1974.50 0.689 137.49 1975.50 0.688 137.45 1976.50 0.686 137.42 1977.50 0.685 137.39 1978.50 0.683 137.36 1979.50 0.682 137.33 1980.50 0.680 137.30 1981.50 0.679 137.26 1982.50 0.677 137.23 1983.50 0.676 137.20 1984.50 0.674 137.17 1985.50 0.672 137.13 1986.50 0.670 137.10 1987.50 0.669 137.07 1988.50 0.667 137.03 1989.50 0.665 137.00 1990.50 0.663 136.97 1991.50 0.661 136.93 1992.50 0.659 136.90 1993.50 0.657 136.86 1994.50 0.655 136.83 1995.50 0.652 136.79 1996.50 0.650 136.76 1997.50 0.648 136.72 1998.50 0.646 136.69 1999.50 0.643 136.65 2000.50 0.641 136.62 2001.50 0.639 136.58 2002.50 0.636 136.54 2003.50 0.634 136.51 2004.50 0.631 136.47 2005.50 0.628 136.43 2006.50 0.626 136.39 2007.50 0.623 136.35 2008.50 0.620 136.32 2009.50 0.617 136.28 2010.50 0.615 136.24 2011.50 0.612 136.20 2012.50 0.609 136.16 2013.50 0.606 136.12 2014.50 0.603 136.08 2015.50 0.599 136.04 2016.50 0.596 135.99 2017.50 0.593 135.95 2018.50 0.590 135.91 2019.50 0.586 135.87 2020.50 0.583 135.82 2021.50 0.580 135.78 2022.50 0.576 135.74 2023.50 0.572 135.69 2024.50 0.569 135.64 2025.50 0.565 135.60 2026.50 0.561 135.55 2027.50 0.558 135.50 2028.50 0.554 135.46 2029.50 0.550 135.41 2030.50 0.546 135.36 2031.50 0.542 135.31 2032.50 0.538 135.26 2033.50 0.534 135.20 2034.50 0.529 135.15 2035.50 0.525 135.10 2036.50 0.521 135.04 2037.50 0.516 134.99 2038.50 0.512 134.93 2039.50 0.507 134.87 2040.50 0.503 134.82 2041.50 0.498 134.76 2042.50 0.493 134.70 2043.50 0.488 134.63 2044.50 0.484 134.57 2045.50 0.479 134.51 2046.50 0.474 134.44 2047.50 0.469 134.37 2048.50 0.463 134.31 2049.50 0.458 134.24 2050.50 0.453 134.16 2051.50 0.447 134.09 2052.50 0.442 134.01 2053.50 0.436 133.94 2054.50 0.431 133.86 2055.50 0.425 133.78 2056.50 0.419 133.69 2057.50 0.414 133.61 2058.50 0.408 133.52 2059.50 0.402 133.43 2060.50 0.396 133.34 2061.50 0.389 133.24 2062.50 0.383 133.14 2063.50 0.377 133.04 2064.50 0.370 132.93 2065.50 0.364 132.82 2066.50 0.357 132.70 2067.50 0.351 132.59 2068.50 0.344 132.46 2069.50 0.337 132.33 2070.50 0.330 132.20 2071.50 0.323 132.06 2072.50 0.316 131.92 2073.50 0.309 131.76 2074.50 0.302 131.60 2075.50 0.295 131.44 2076.50 0.287 131.26 2077.50 0.280 131.08 2078.50 0.272 130.88 2079.50 0.264 130.67 2080.50 0.257 130.45 2081.50 0.249 130.22 2082.50 0.241 129.97 2083.50 0.233 129.71 2084.50 0.225 129.42 2085.50 0.217 129.12 2086.50 0.208 128.79 2087.50 0.200 128.43 2088.50 0.191 128.04 2089.50 0.183 127.62 2090.50 0.174 127.15 2091.50 0.166 126.64 2092.50 0.157 126.06 2093.50 0.148 125.43 2094.50 0.139 124.71 2095.50 0.131 123.89 2096.50 0.122 122.95 2097.50 0.113 121.87 2098.50 0.104 120.60 2099.50 0.095 119.09 2100.50 0.086 117.26 2101.50 0.077 115.01 2102.50 0.068 112.17 2103.50 0.060 108.50 2104.50 0.051 103.62 2105.50 0.043 96.90 2106.50 0.036 87.39 2107.50 0.031 73.89 2108.50 0.027 55.84 2109.50 0.027 35.42 2110.50 0.030 17.10 2111.50 0.036 3.28 2112.50 0.043 353.55 2113.50 0.051 346.67 2114.50 0.059 341.68 2115.50 0.068 337.94 2116.50 0.076 335.04 2117.50 0.085 332.75 2118.50 0.094 330.89 2119.50 0.103 329.34 2120.50 0.112 328.04 2121.50 0.120 326.93 2122.50 0.129 325.97 2123.50 0.137 325.13 2124.50 0.146 324.39 2125.50 0.154 323.73 2126.50 0.162 323.13 2127.50 0.170 322.59 2128.50 0.178 322.10 2129.50 0.185 321.65 2130.50 0.193 321.23 2131.50 0.200 320.84 2132.50 0.207 320.48 2133.50 0.214 320.15 2134.50 0.220 319.83 2135.50 0.226 319.53 2136.50 0.232 319.25 2137.50 0.238 318.98 2138.50 0.244 318.72 2139.50 0.249 318.48 2140.50 0.254 318.24 2141.50 0.259 318.02 2142.50 0.263 317.80 2143.50 0.268 317.59 2144.50 0.272 317.38 2145.50 0.275 317.18 2146.50 0.279 316.99 2147.50 0.282 316.80 2148.50 0.285 316.61 2149.50 0.288 316.43 2150.50 0.291 316.26 2151.50 0.293 316.08 2152.50 0.295 315.91 2153.50 0.297 315.74 2154.50 0.299 315.57 2155.50 0.301 315.41 2156.50 0.302 315.24 2157.50 0.303 315.08 2158.50 0.304 314.92 2159.50 0.305 314.76 2160.50 0.305 314.60 2161.50 0.306 314.44 2162.50 0.306 314.28 2163.50 0.306 314.12 2164.50 0.306 313.96 2165.50 0.306 313.80 2166.50 0.305 313.64 2167.50 0.305 313.48 2168.50 0.304 313.32 2169.50 0.303 313.16 2170.50 0.303 313.00 2171.50 0.301 312.84 2172.50 0.300 312.67 2173.50 0.299 312.51 2174.50 0.298 312.34 2175.50 0.296 312.17 2176.50 0.294 312.00 2177.50 0.293 311.83 2178.50 0.291 311.65 2179.50 0.289 311.48 2180.50 0.287 311.30 2181.50 0.285 311.12 2182.50 0.283 310.93 2183.50 0.280 310.74 2184.50 0.278 310.55 2185.50 0.276 310.36 2186.50 0.273 310.16 2187.50 0.271 309.96 2188.50 0.268 309.75 2189.50 0.265 309.55 2190.50 0.263 309.33 2191.50 0.260 309.11 2192.50 0.257 308.89 2193.50 0.254 308.66 2194.50 0.251 308.43 2195.50 0.248 308.19 2196.50 0.245 307.95 2197.50 0.242 307.70 2198.50 0.239 307.44 2199.50 0.236 307.17 2200.50 0.232 306.90 2201.50 0.229 306.62 2202.50 0.226 306.33 2203.50 0.222 306.04 2204.50 0.219 305.73 2205.50 0.216 305.42 2206.50 0.212 305.09 2207.50 0.209 304.76 2208.50 0.205 304.41 2209.50 0.202 304.05 2210.50 0.198 303.68 2211.50 0.195 303.29 2212.50 0.191 302.89 2213.50 0.187 302.47 2214.50 0.184 302.04 2215.50 0.180 301.59 2216.50 0.176 301.12 2217.50 0.173 300.63 2218.50 0.169 300.12 2219.50 0.165 299.59 2220.50 0.162 299.03 2221.50 0.158 298.45 2222.50 0.154 297.84 2223.50 0.151 297.20 2224.50 0.147 296.53 2225.50 0.143 295.82 2226.50 0.140 295.08 2227.50 0.136 294.29 2228.50 0.132 293.46 2229.50 0.129 292.59 2230.50 0.125 291.66 2231.50 0.121 290.68 2232.50 0.118 289.64 2233.50 0.114 288.53 2234.50 0.111 287.36 2235.50 0.107 286.10 2236.50 0.104 284.77 2237.50 0.100 283.34 2238.50 0.097 281.81 2239.50 0.094 280.18 2240.50 0.091 278.42 2241.50 0.088 276.55 2242.50 0.084 274.53 2243.50 0.082 272.38 2244.50 0.079 270.06 2245.50 0.076 267.58 2246.50 0.074 264.92 2247.50 0.071 262.08 2248.50 0.069 259.06 2249.50 0.067 255.85 2250.50 0.065 252.46 2251.50 0.064 248.89 2252.50 0.063 245.16 2253.50 0.062 241.30 2254.50 0.061 237.33 2255.50 0.060 233.28 2256.50 0.060 229.20 2257.50 0.061 225.12 2258.50 0.061 221.09 2259.50 0.062 217.14 2260.50 0.063 213.31 2261.50 0.064 209.62 2262.50 0.066 206.09 2263.50 0.068 202.74 2264.50 0.070 199.57 2265.50 0.072 196.59 2266.50 0.074 193.80 2267.50 0.077 191.19 2268.50 0.079 188.75 2269.50 0.082 186.47 2270.50 0.085 184.35 2271.50 0.088 182.37 2272.50 0.091 180.53 2273.50 0.095 178.81 2274.50 0.098 177.20 2275.50 0.101 175.70 2276.50 0.105 174.30 2277.50 0.108 172.99 2278.50 0.112 171.76 2279.50 0.115 170.60 2280.50 0.119 169.52 2281.50 0.123 168.50 2282.50 0.126 167.53 2283.50 0.130 166.63 2284.50 0.134 165.77 2285.50 0.137 164.96 2286.50 0.141 164.19 2287.50 0.145 163.46 2288.50 0.149 162.77 2289.50 0.152 162.12 2290.50 0.156 161.49 2291.50 0.160 160.90 2292.50 0.164 160.33 2293.50 0.168 159.79 2294.50 0.172 159.27 2295.50 0.175 158.78 2296.50 0.179 158.30 2297.50 0.183 157.85 2298.50 0.187 157.42 2299.50 0.191 157.00 2300.50 0.195 156.60 2301.50 0.199 156.22 2302.50 0.202 155.84 2303.50 0.206 155.49 2304.50 0.210 155.15 2305.50 0.214 154.81 2306.50 0.218 154.50 2307.50 0.222 154.19 2308.50 0.226 153.89 2309.50 0.229 153.60 2310.50 0.233 153.32 2311.50 0.237 153.05 2312.50 0.241 152.79 2313.50 0.245 152.54 2314.50 0.248 152.30 2315.50 0.252 152.06 2316.50 0.256 151.83 2317.50 0.260 151.60
| Double Star Calculator: | Version 1.2 ($Rev: 2397 $) |
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| Report created: |
2026-06-25 18:01:51 |