Double Star Calculator - Orbit

Orbital Elements for BU800AB
WDS: BU800AB WDS ID/Discoverer
P: 607.222 Orbital period (years)
a: 6.36385 Semi-major axis (arcseconds)
i: 94.417 Inclination (degrees)
Ω: 104.659 Longitude of ascending node (degrees)
T: 1819.455 Epoch of periastron passage (year)
e: 0.31334 Eccentricity
ω: 217.465 Longitude of periastron (degrees)
Start-Year: 1721.38885 Year
End-Year: 2328.61115 Year
Epoch: 2026.5 Besselian Epoch
Further data from the WDS Sixth Catalog of Orbits for BU800AB
Position: 131651.05+170101.9 Epoch-2000 right ascension and declination
WDS-ID: 13169+1701 WDS designation
Discoverer Code: BU800AB Discover designation and components
ADS number: 8841 Aitken Double Star catalog
HD number: 115404 HD catalog number
Hipparcos number: 64797 Hipparcos catalog number
V1: 6.66 Magnitude of the primary
V2: 9.50 Magnitude of the secondary
Equinox: Equinox
Date: 2015 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

Double Star Orbit for BU800AB



WDS 6th Orbit including measures of BU800AB

-- Image from the USNO WDS 6th Orbit Catalog (see Acknowledgements) --


Legend:
Green plus signs:Visual (micrometric) measures
Violet asterisks:Photographic measures
Blue symbols:Various interferometric techniques
Dot-dash line:Indicates the line of nodes

Ephemeris of BU800AB
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    7.760   104.32
--------------------------
1721.39    3.261   291.29
1722.39    3.305   291.13
1723.39    3.348   290.97
1724.39    3.391   290.81
1725.39    3.433   290.66
1726.39    3.475   290.52
1727.39    3.516   290.37
1728.39    3.557   290.23
1729.39    3.597   290.09
1730.39    3.637   289.96
1731.39    3.676   289.83
1732.39    3.715   289.70
1733.39    3.753   289.57
1734.39    3.791   289.45
1735.39    3.828   289.33
1736.39    3.864   289.21
1737.39    3.900   289.09
1738.39    3.935   288.98
1739.39    3.970   288.87
1740.39    4.003   288.76
1741.39    4.037   288.65
1742.39    4.069   288.54
1743.39    4.101   288.44
1744.39    4.132   288.33
1745.39    4.163   288.23
1746.39    4.192   288.13
1747.39    4.221   288.03
1748.39    4.249   287.93
1749.39    4.277   287.84
1750.39    4.303   287.74
1751.39    4.329   287.65
1752.39    4.354   287.55
1753.39    4.378   287.46
1754.39    4.401   287.37
1755.39    4.424   287.28
1756.39    4.445   287.19
1757.39    4.466   287.10
1758.39    4.485   287.01
1759.39    4.504   286.93
1760.39    4.522   286.84
1761.39    4.539   286.76
1762.39    4.554   286.67
1763.39    4.569   286.59
1764.39    4.583   286.50
1765.39    4.596   286.42
1766.39    4.608   286.34
1767.39    4.618   286.25
1768.39    4.628   286.17
1769.39    4.637   286.09
1770.39    4.644   286.01
1771.39    4.650   285.93
1772.39    4.656   285.85
1773.39    4.660   285.76
1774.39    4.663   285.68
1775.39    4.664   285.60
1776.39    4.665   285.52
1777.39    4.664   285.44
1778.39    4.663   285.36
1779.39    4.660   285.28
1780.39    4.655   285.20
1781.39    4.650   285.12
1782.39    4.643   285.04
1783.39    4.635   284.96
1784.39    4.626   284.87
1785.39    4.615   284.79
1786.39    4.604   284.71
1787.39    4.591   284.63
1788.39    4.576   284.54
1789.39    4.560   284.46
1790.39    4.543   284.37
1791.39    4.525   284.29
1792.39    4.505   284.20
1793.39    4.485   284.11
1794.39    4.462   284.03
1795.39    4.439   283.94
1796.39    4.414   283.85
1797.39    4.387   283.76
1798.39    4.360   283.67
1799.39    4.331   283.57
1800.39    4.300   283.48
1801.39    4.269   283.38
1802.39    4.236   283.29
1803.39    4.201   283.19
1804.39    4.166   283.09
1805.39    4.129   282.98
1806.39    4.090   282.88
1807.39    4.051   282.77
1808.39    4.010   282.67
1809.39    3.968   282.56
1810.39    3.924   282.44
1811.39    3.880   282.33
1812.39    3.834   282.21
1813.39    3.787   282.09
1814.39    3.738   281.97
1815.39    3.688   281.84
1816.39    3.638   281.71
1817.39    3.586   281.57
1818.39    3.532   281.43
1819.39    3.478   281.29
1820.39    3.423   281.14
1821.39    3.366   280.99
1822.39    3.308   280.83
1823.39    3.250   280.67
1824.39    3.190   280.50
1825.39    3.129   280.32
1826.39    3.067   280.14
1827.39    3.005   279.95
1828.39    2.941   279.75
1829.39    2.876   279.54
1830.39    2.811   279.33
1831.39    2.744   279.10
1832.39    2.677   278.86
1833.39    2.609   278.61
1834.39    2.540   278.34
1835.39    2.471   278.06
1836.39    2.400   277.77
1837.39    2.329   277.45
1838.39    2.258   277.12
1839.39    2.185   276.76
1840.39    2.112   276.38
1841.39    2.039   275.98
1842.39    1.965   275.54
1843.39    1.891   275.07
1844.39    1.816   274.55
1845.39    1.740   274.00
1846.39    1.665   273.39
1847.39    1.589   272.73
1848.39    1.513   272.00
1849.39    1.437   271.19
1850.39    1.360   270.29
1851.39    1.284   269.29
1852.39    1.207   268.15
1853.39    1.131   266.87
1854.39    1.055   265.40
1855.39    0.980   263.70
1856.39    0.906   261.72
1857.39    0.832   259.39
1858.39    0.760   256.61
1859.39    0.690   253.26
1860.39    0.622   249.17
1861.39    0.559   244.11
1862.39    0.500   237.81
1863.39    0.449   229.97
1864.39    0.409   220.36
1865.39    0.382   209.03
1866.39    0.371   196.53
1867.39    0.379   183.95
1868.39    0.404   172.39
1869.39    0.443   162.51
1870.39    0.492   154.42
1871.39    0.550   147.91
1872.39    0.613   142.69
1873.39    0.680   138.47
1874.39    0.750   135.02
1875.39    0.822   132.17
1876.39    0.895   129.78
1877.39    0.970   127.76
1878.39    1.045   126.02
1879.39    1.121   124.53
1880.39    1.198   123.22
1881.39    1.274   122.07
1882.39    1.351   121.05
1883.39    1.428   120.14
1884.39    1.506   119.32
1885.39    1.583   118.58
1886.39    1.660   117.92
1887.39    1.736   117.31
1888.39    1.813   116.75
1889.39    1.890   116.24
1890.39    1.966   115.76
1891.39    2.042   115.33
1892.39    2.118   114.92
1893.39    2.193   114.54
1894.39    2.269   114.19
1895.39    2.343   113.86
1896.39    2.418   113.55
1897.39    2.492   113.26
1898.39    2.566   112.98
1899.39    2.639   112.72
1900.39    2.712   112.48
1901.39    2.785   112.25
1902.39    2.857   112.03
1903.39    2.929   111.82
1904.39    3.000   111.62
1905.39    3.071   111.43
1906.39    3.142   111.24
1907.39    3.212   111.07
1908.39    3.281   110.90
1909.39    3.350   110.74
1910.39    3.419   110.59
1911.39    3.487   110.44
1912.39    3.555   110.30
1913.39    3.622   110.16
1914.39    3.689   110.03
1915.39    3.755   109.91
1916.39    3.820   109.78
1917.39    3.885   109.67
1918.39    3.950   109.55
1919.39    4.014   109.44
1920.39    4.078   109.33
1921.39    4.141   109.23
1922.39    4.203   109.13
1923.39    4.265   109.03
1924.39    4.327   108.94
1925.39    4.388   108.84
1926.39    4.448   108.75
1927.39    4.508   108.67
1928.39    4.567   108.58
1929.39    4.626   108.50
1930.39    4.684   108.42
1931.39    4.741   108.34
1932.39    4.799   108.26
1933.39    4.855   108.18
1934.39    4.911   108.11
1935.39    4.966   108.04
1936.39    5.021   107.97
1937.39    5.076   107.90
1938.39    5.129   107.83
1939.39    5.183   107.77
1940.39    5.235   107.70
1941.39    5.287   107.64
1942.39    5.339   107.58
1943.39    5.390   107.51
1944.39    5.440   107.45
1945.39    5.490   107.40
1946.39    5.539   107.34
1947.39    5.588   107.28
1948.39    5.636   107.23
1949.39    5.684   107.17
1950.39    5.731   107.12
1951.39    5.777   107.06
1952.39    5.823   107.01
1953.39    5.869   106.96
1954.39    5.914   106.91
1955.39    5.958   106.86
1956.39    6.002   106.81
1957.39    6.045   106.76
1958.39    6.087   106.71
1959.39    6.130   106.67
1960.39    6.171   106.62
1961.39    6.212   106.58
1962.39    6.252   106.53
1963.39    6.292   106.49
1964.39    6.332   106.44
1965.39    6.370   106.40
1966.39    6.409   106.35
1967.39    6.446   106.31
1968.39    6.484   106.27
1969.39    6.520   106.23
1970.39    6.556   106.19
1971.39    6.592   106.15
1972.39    6.627   106.11
1973.39    6.661   106.07
1974.39    6.695   106.03
1975.39    6.729   105.99
1976.39    6.761   105.95
1977.39    6.794   105.91
1978.39    6.826   105.87
1979.39    6.857   105.84
1980.39    6.888   105.80
1981.39    6.918   105.76
1982.39    6.948   105.73
1983.39    6.977   105.69
1984.39    7.005   105.65
1985.39    7.034   105.62
1986.39    7.061   105.58
1987.39    7.088   105.55
1988.39    7.115   105.51
1989.39    7.141   105.48
1990.39    7.166   105.44
1991.39    7.191   105.41
1992.39    7.216   105.38
1993.39    7.240   105.34
1994.39    7.264   105.31
1995.39    7.287   105.28
1996.39    7.309   105.24
1997.39    7.331   105.21
1998.39    7.353   105.18
1999.39    7.374   105.15
2000.39    7.394   105.11
2001.39    7.414   105.08
2002.39    7.434   105.05
2003.39    7.453   105.02
2004.39    7.471   104.99
2005.39    7.489   104.95
2006.39    7.507   104.92
2007.39    7.524   104.89
2008.39    7.541   104.86
2009.39    7.557   104.83
2010.39    7.573   104.80
2011.39    7.588   104.77
2012.39    7.602   104.74
2013.39    7.617   104.71
2014.39    7.630   104.68
2015.39    7.644   104.65
2016.39    7.656   104.62
2017.39    7.669   104.59
2018.39    7.681   104.56
2019.39    7.692   104.53
2020.39    7.703   104.50
2021.39    7.714   104.47
2022.39    7.724   104.44
2023.39    7.733   104.41
2024.39    7.742   104.38
2025.39    7.751   104.35
2026.39    7.759   104.32
2027.39    7.767   104.29
2028.39    7.774   104.26
2029.39    7.781   104.24
2030.39    7.787   104.21
2031.39    7.793   104.18
2032.39    7.799   104.15
2033.39    7.804   104.12
2034.39    7.808   104.09
2035.39    7.813   104.06
2036.39    7.816   104.03
2037.39    7.820   104.00
2038.39    7.823   103.98
2039.39    7.825   103.95
2040.39    7.827   103.92
2041.39    7.829   103.89
2042.39    7.830   103.86
2043.39    7.830   103.83
2044.39    7.831   103.80
2045.39    7.831   103.78
2046.39    7.830   103.75
2047.39    7.829   103.72
2048.39    7.828   103.69
2049.39    7.826   103.66
2050.39    7.824   103.63
2051.39    7.821   103.60
2052.39    7.818   103.57
2053.39    7.815   103.55
2054.39    7.811   103.52
2055.39    7.806   103.49
2056.39    7.802   103.46
2057.39    7.797   103.43
2058.39    7.791   103.40
2059.39    7.785   103.37
2060.39    7.779   103.34
2061.39    7.772   103.31
2062.39    7.765   103.29
2063.39    7.758   103.26
2064.39    7.750   103.23
2065.39    7.741   103.20
2066.39    7.733   103.17
2067.39    7.724   103.14
2068.39    7.714   103.11
2069.39    7.704   103.08
2070.39    7.694   103.05
2071.39    7.684   103.02
2072.39    7.672   102.99
2073.39    7.661   102.96
2074.39    7.649   102.93
2075.39    7.637   102.90
2076.39    7.625   102.87
2077.39    7.612   102.84
2078.39    7.599   102.81
2079.39    7.585   102.78
2080.39    7.571   102.75
2081.39    7.556   102.72
2082.39    7.542   102.69
2083.39    7.527   102.66
2084.39    7.511   102.63
2085.39    7.495   102.59
2086.39    7.479   102.56
2087.39    7.462   102.53
2088.39    7.445   102.50
2089.39    7.428   102.47
2090.39    7.411   102.44
2091.39    7.392   102.40
2092.39    7.374   102.37
2093.39    7.355   102.34
2094.39    7.336   102.31
2095.39    7.317   102.27
2096.39    7.297   102.24
2097.39    7.277   102.21
2098.39    7.257   102.18
2099.39    7.236   102.14
2100.39    7.215   102.11
2101.39    7.193   102.07
2102.39    7.171   102.04
2103.39    7.149   102.01
2104.39    7.126   101.97
2105.39    7.104   101.94
2106.39    7.080   101.90
2107.39    7.057   101.87
2108.39    7.033   101.83
2109.39    7.009   101.80
2110.39    6.984   101.76
2111.39    6.959   101.72
2112.39    6.934   101.69
2113.39    6.909   101.65
2114.39    6.883   101.61
2115.39    6.857   101.58
2116.39    6.830   101.54
2117.39    6.804   101.50
2118.39    6.776   101.46
2119.39    6.749   101.43
2120.39    6.721   101.39
2121.39    6.693   101.35
2122.39    6.665   101.31
2123.39    6.636   101.27
2124.39    6.607   101.23
2125.39    6.578   101.19
2126.39    6.548   101.15
2127.39    6.518   101.11
2128.39    6.488   101.06
2129.39    6.458   101.02
2130.39    6.427   100.98
2131.39    6.396   100.94
2132.39    6.364   100.89
2133.39    6.332   100.85
2134.39    6.300   100.81
2135.39    6.268   100.76
2136.39    6.235   100.72
2137.39    6.203   100.67
2138.39    6.169   100.63
2139.39    6.136   100.58
2140.39    6.102   100.53
2141.39    6.068   100.49
2142.39    6.034   100.44
2143.39    5.999   100.39
2144.39    5.964   100.34
2145.39    5.929   100.29
2146.39    5.894   100.24
2147.39    5.858   100.19
2148.39    5.822   100.14
2149.39    5.785   100.09
2150.39    5.749   100.03
2151.39    5.712    99.98
2152.39    5.675    99.93
2153.39    5.638    99.87
2154.39    5.600    99.81
2155.39    5.562    99.76
2156.39    5.524    99.70
2157.39    5.485    99.64
2158.39    5.447    99.58
2159.39    5.408    99.52
2160.39    5.369    99.46
2161.39    5.329    99.40
2162.39    5.289    99.34
2163.39    5.249    99.28
2164.39    5.209    99.21
2165.39    5.169    99.15
2166.39    5.128    99.08
2167.39    5.087    99.01
2168.39    5.046    98.95
2169.39    5.004    98.88
2170.39    4.963    98.81
2171.39    4.921    98.73
2172.39    4.879    98.66
2173.39    4.836    98.59
2174.39    4.794    98.51
2175.39    4.751    98.43
2176.39    4.708    98.35
2177.39    4.664    98.27
2178.39    4.621    98.19
2179.39    4.577    98.11
2180.39    4.533    98.03
2181.39    4.489    97.94
2182.39    4.444    97.85
2183.39    4.400    97.76
2184.39    4.355    97.67
2185.39    4.310    97.58
2186.39    4.264    97.48
2187.39    4.219    97.38
2188.39    4.173    97.28
2189.39    4.127    97.18
2190.39    4.081    97.08
2191.39    4.035    96.97
2192.39    3.988    96.86
2193.39    3.942    96.75
2194.39    3.895    96.64
2195.39    3.848    96.52
2196.39    3.800    96.40
2197.39    3.753    96.27
2198.39    3.705    96.15
2199.39    3.657    96.02
2200.39    3.609    95.89
2201.39    3.561    95.75
2202.39    3.513    95.61
2203.39    3.464    95.46
2204.39    3.416    95.32
2205.39    3.367    95.16
2206.39    3.318    95.01
2207.39    3.269    94.84
2208.39    3.219    94.68
2209.39    3.170    94.51
2210.39    3.120    94.33
2211.39    3.070    94.14
2212.39    3.020    93.96
2213.39    2.970    93.76
2214.39    2.920    93.56
2215.39    2.870    93.35
2216.39    2.819    93.13
2217.39    2.769    92.91
2218.39    2.718    92.67
2219.39    2.667    92.43
2220.39    2.617    92.18
2221.39    2.566    91.92
2222.39    2.514    91.64
2223.39    2.463    91.36
2224.39    2.412    91.07
2225.39    2.361    90.76
2226.39    2.309    90.44
2227.39    2.258    90.10
2228.39    2.206    89.75
2229.39    2.155    89.38
2230.39    2.103    88.99
2231.39    2.051    88.58
2232.39    2.000    88.15
2233.39    1.948    87.70
2234.39    1.896    87.23
2235.39    1.845    86.73
2236.39    1.793    86.19
2237.39    1.742    85.63
2238.39    1.690    85.04
2239.39    1.639    84.40
2240.39    1.587    83.73
2241.39    1.536    83.01
2242.39    1.485    82.24
2243.39    1.434    81.41
2244.39    1.384    80.53
2245.39    1.333    79.58
2246.39    1.283    78.55
2247.39    1.234    77.44
2248.39    1.184    76.24
2249.39    1.136    74.93
2250.39    1.087    73.51
2251.39    1.040    71.96
2252.39    0.993    70.26
2253.39    0.947    68.39
2254.39    0.902    66.33
2255.39    0.859    64.07
2256.39    0.816    61.56
2257.39    0.776    58.79
2258.39    0.737    55.72
2259.39    0.701    52.32
2260.39    0.667    48.56
2261.39    0.637    44.43
2262.39    0.610    39.91
2263.39    0.587    35.00
2264.39    0.569    29.74
2265.39    0.556    24.18
2266.39    0.548    18.40
2267.39    0.546    12.52
2268.39    0.550     6.66
2269.39    0.559     0.93
2270.39    0.573   355.44
2271.39    0.593   350.27
2272.39    0.617   345.46
2273.39    0.645   341.04
2274.39    0.676   337.00
2275.39    0.710   333.34
2276.39    0.747   330.03
2277.39    0.786   327.04
2278.39    0.827   324.34
2279.39    0.870   321.90
2280.39    0.914   319.69
2281.39    0.959   317.69
2282.39    1.005   315.86
2283.39    1.052   314.20
2284.39    1.099   312.68
2285.39    1.148   311.29
2286.39    1.196   310.01
2287.39    1.245   308.83
2288.39    1.295   307.74
2289.39    1.345   306.73
2290.39    1.395   305.80
2291.39    1.445   304.93
2292.39    1.496   304.11
2293.39    1.547   303.36
2294.39    1.597   302.64
2295.39    1.648   301.98
2296.39    1.699   301.35
2297.39    1.750   300.76
2298.39    1.801   300.20
2299.39    1.852   299.68
2300.39    1.903   299.18
2301.39    1.953   298.71
2302.39    2.004   298.26
2303.39    2.055   297.83
2304.39    2.105   297.42
2305.39    2.156   297.04
2306.39    2.206   296.67
2307.39    2.256   296.32
2308.39    2.306   295.98
2309.39    2.356   295.65
2310.39    2.405   295.34
2311.39    2.455   295.05
2312.39    2.504   294.76
2313.39    2.553   294.49
2314.39    2.602   294.22
2315.39    2.650   293.97
2316.39    2.698   293.72
2317.39    2.746   293.49
2318.39    2.794   293.26
2319.39    2.841   293.03
2320.39    2.888   292.82
2321.39    2.935   292.61
2322.39    2.981   292.41
2323.39    3.027   292.22
2324.39    3.073   292.03
2325.39    3.118   291.85
2326.39    3.163   291.67
2327.39    3.207   291.50
2328.39    3.251   291.33






Disclaimer
This result is provided without warranty. For all terms, see the Full Disclaimer. Copyright (C) 2025. Unless otherwise noted, all output generated by the Double Star Calculator including orbit diagrams, ephemerides, and analytical reports is licensed under CC BY 4.0.


Acknowledgements
The Double Star Calculator - Orbital Elements makes use of the Washington Double Star Sixth Catalog of Orbits of Visual Binary Stars, maintained at the U.S. Naval Observatory.


Report Information
Double Star Calculator: Version 1.2 ($Rev: 2397 $)
Report created: 2026-06-25 16:54:22



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