Double Star Calculator - Orbit

Orbital Elements for BU69AB
WDS: BU69AB WDS ID/Discoverer
P: 443.000 Orbital period (years)
a: 0.996 Semi-major axis (arcseconds)
i: 76.9 Inclination (degrees)
Ω: 127.9 Longitude of ascending node (degrees)
T: 2256.000 Epoch of periastron passage (year)
e: 0.4 Eccentricity
ω: 88.7 Longitude of periastron (degrees)
Start-Year: 1803.5 Year
End-Year: 2246.5 Year
Epoch: 2026.5 Besselian Epoch
Further data from the WDS Sixth Catalog of Orbits for BU69AB
Position: 210236.08+214128.2 Epoch-2000 right ascension and declination
WDS-ID: 21026+2141 WDS designation
Discoverer Code: BU69AB Discover designation and components
ADS number: 14570 Aitken Double Star catalog
HD number: 200392 HD catalog number
Hipparcos number: 103852 Hipparcos catalog number
V1: 8.35 Magnitude of the primary
V2: 9.80 Magnitude of the secondary
Equinox: 2000 Equinox
Date: 2007 Date of last observation
Orbit grade: 5 Orbit grade, ranging from :
1 = Definitive
2 = Good
3 = Reliable
4 = Preliminary
5 = Indeterminate
Flags: Flags
Ephemerides: Ephemerides
Code: Zir2014a Reference

Double Star Orbit for BU69AB



WDS 6th Orbit including measures of BU69AB

-- 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 BU69AB
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.332    19.38
--------------------------
1803.50    0.251   158.80
1804.50    0.234   161.66
1805.50    0.218   164.95
1806.50    0.202   168.77
1807.50    0.187   173.21
1808.50    0.173   178.39
1809.50    0.161   184.41
1810.50    0.151   191.33
1811.50    0.143   199.14
1812.50    0.138   207.70
1813.50    0.135   216.73
1814.50    0.137   225.80
1815.50    0.141   234.51
1816.50    0.149   242.52
1817.50    0.158   249.66
1818.50    0.170   255.88
1819.50    0.184   261.25
1820.50    0.198   265.86
1821.50    0.214   269.82
1822.50    0.230   273.22
1823.50    0.247   276.18
1824.50    0.264   278.75
1825.50    0.281   281.01
1826.50    0.299   283.00
1827.50    0.316   284.78
1828.50    0.334   286.36
1829.50    0.351   287.79
1830.50    0.369   289.08
1831.50    0.386   290.26
1832.50    0.403   291.34
1833.50    0.420   292.33
1834.50    0.437   293.24
1835.50    0.453   294.08
1836.50    0.470   294.87
1837.50    0.486   295.61
1838.50    0.502   296.29
1839.50    0.517   296.94
1840.50    0.532   297.55
1841.50    0.547   298.12
1842.50    0.562   298.67
1843.50    0.576   299.18
1844.50    0.590   299.68
1845.50    0.604   300.14
1846.50    0.617   300.59
1847.50    0.631   301.02
1848.50    0.643   301.44
1849.50    0.656   301.83
1850.50    0.668   302.22
1851.50    0.680   302.58
1852.50    0.691   302.94
1853.50    0.702   303.29
1854.50    0.713   303.62
1855.50    0.724   303.94
1856.50    0.734   304.26
1857.50    0.744   304.57
1858.50    0.754   304.86
1859.50    0.763   305.16
1860.50    0.772   305.44
1861.50    0.781   305.72
1862.50    0.789   305.99
1863.50    0.797   306.25
1864.50    0.805   306.52
1865.50    0.813   306.77
1866.50    0.820   307.02
1867.50    0.827   307.27
1868.50    0.834   307.51
1869.50    0.840   307.75
1870.50    0.847   307.99
1871.50    0.852   308.22
1872.50    0.858   308.45
1873.50    0.864   308.67
1874.50    0.869   308.90
1875.50    0.874   309.12
1876.50    0.878   309.34
1877.50    0.883   309.55
1878.50    0.887   309.77
1879.50    0.891   309.98
1880.50    0.895   310.19
1881.50    0.898   310.40
1882.50    0.901   310.60
1883.50    0.905   310.81
1884.50    0.907   311.01
1885.50    0.910   311.21
1886.50    0.912   311.42
1887.50    0.915   311.62
1888.50    0.917   311.82
1889.50    0.919   312.02
1890.50    0.920   312.21
1891.50    0.922   312.41
1892.50    0.923   312.61
1893.50    0.924   312.80
1894.50    0.925   313.00
1895.50    0.926   313.20
1896.50    0.926   313.39
1897.50    0.926   313.59
1898.50    0.927   313.78
1899.50    0.927   313.98
1900.50    0.927   314.17
1901.50    0.926   314.37
1902.50    0.926   314.56
1903.50    0.925   314.76
1904.50    0.924   314.95
1905.50    0.924   315.15
1906.50    0.922   315.35
1907.50    0.921   315.54
1908.50    0.920   315.74
1909.50    0.918   315.94
1910.50    0.917   316.14
1911.50    0.915   316.34
1912.50    0.913   316.54
1913.50    0.911   316.74
1914.50    0.909   316.94
1915.50    0.907   317.14
1916.50    0.904   317.35
1917.50    0.902   317.55
1918.50    0.899   317.76
1919.50    0.896   317.97
1920.50    0.894   318.18
1921.50    0.891   318.39
1922.50    0.887   318.60
1923.50    0.884   318.81
1924.50    0.881   319.03
1925.50    0.877   319.24
1926.50    0.874   319.46
1927.50    0.870   319.68
1928.50    0.867   319.90
1929.50    0.863   320.13
1930.50    0.859   320.35
1931.50    0.855   320.58
1932.50    0.851   320.81
1933.50    0.847   321.05
1934.50    0.842   321.28
1935.50    0.838   321.52
1936.50    0.834   321.76
1937.50    0.829   322.00
1938.50    0.824   322.24
1939.50    0.820   322.49
1940.50    0.815   322.74
1941.50    0.810   323.00
1942.50    0.805   323.25
1943.50    0.800   323.51
1944.50    0.795   323.78
1945.50    0.790   324.04
1946.50    0.785   324.31
1947.50    0.780   324.59
1948.50    0.774   324.86
1949.50    0.769   325.14
1950.50    0.764   325.43
1951.50    0.758   325.72
1952.50    0.753   326.01
1953.50    0.747   326.31
1954.50    0.741   326.61
1955.50    0.736   326.92
1956.50    0.730   327.23
1957.50    0.724   327.55
1958.50    0.718   327.87
1959.50    0.712   328.20
1960.50    0.706   328.53
1961.50    0.700   328.87
1962.50    0.694   329.21
1963.50    0.688   329.56
1964.50    0.682   329.92
1965.50    0.676   330.28
1966.50    0.670   330.65
1967.50    0.664   331.03
1968.50    0.657   331.41
1969.50    0.651   331.80
1970.50    0.645   332.20
1971.50    0.639   332.61
1972.50    0.632   333.02
1973.50    0.626   333.45
1974.50    0.620   333.88
1975.50    0.613   334.32
1976.50    0.607   334.77
1977.50    0.600   335.23
1978.50    0.594   335.70
1979.50    0.587   336.18
1980.50    0.581   336.67
1981.50    0.574   337.17
1982.50    0.568   337.69
1983.50    0.562   338.21
1984.50    0.555   338.75
1985.50    0.549   339.30
1986.50    0.542   339.86
1987.50    0.536   340.44
1988.50    0.529   341.03
1989.50    0.523   341.63
1990.50    0.516   342.25
1991.50    0.510   342.89
1992.50    0.504   343.54
1993.50    0.497   344.21
1994.50    0.491   344.89
1995.50    0.485   345.60
1996.50    0.479   346.32
1997.50    0.472   347.06
1998.50    0.466   347.82
1999.50    0.460   348.60
2000.50    0.454   349.40
2001.50    0.448   350.22
2002.50    0.442   351.07
2003.50    0.436   351.94
2004.50    0.431   352.83
2005.50    0.425   353.74
2006.50    0.419   354.68
2007.50    0.414   355.65
2008.50    0.408   356.64
2009.50    0.403   357.66
2010.50    0.398   358.70
2011.50    0.392   359.78
2012.50    0.387     0.88
2013.50    0.382     2.01
2014.50    0.378     3.17
2015.50    0.373     4.36
2016.50    0.368     5.58
2017.50    0.364     6.82
2018.50    0.360     8.10
2019.50    0.356     9.41
2020.50    0.352    10.75
2021.50    0.348    12.12
2022.50    0.344    13.51
2023.50    0.341    14.94
2024.50    0.338    16.39
2025.50    0.335    17.87
2026.50    0.332    19.38
2027.50    0.329    20.91
2028.50    0.327    22.47
2029.50    0.325    24.04
2030.50    0.323    25.64
2031.50    0.321    27.25
2032.50    0.320    28.88
2033.50    0.319    30.53
2034.50    0.318    32.18
2035.50    0.317    33.85
2036.50    0.316    35.52
2037.50    0.316    37.19
2038.50    0.316    38.87
2039.50    0.316    40.55
2040.50    0.317    42.22
2041.50    0.317    43.89
2042.50    0.318    45.54
2043.50    0.320    47.19
2044.50    0.321    48.82
2045.50    0.323    50.44
2046.50    0.325    52.03
2047.50    0.327    53.61
2048.50    0.329    55.17
2049.50    0.332    56.70
2050.50    0.335    58.21
2051.50    0.338    59.69
2052.50    0.341    61.15
2053.50    0.344    62.58
2054.50    0.348    63.98
2055.50    0.351    65.35
2056.50    0.355    66.69
2057.50    0.359    68.00
2058.50    0.364    69.28
2059.50    0.368    70.54
2060.50    0.373    71.76
2061.50    0.377    72.95
2062.50    0.382    74.11
2063.50    0.387    75.24
2064.50    0.392    76.35
2065.50    0.397    77.42
2066.50    0.402    78.47
2067.50    0.408    79.49
2068.50    0.413    80.49
2069.50    0.419    81.46
2070.50    0.424    82.40
2071.50    0.430    83.32
2072.50    0.436    84.21
2073.50    0.442    85.08
2074.50    0.447    85.93
2075.50    0.453    86.75
2076.50    0.459    87.56
2077.50    0.466    88.34
2078.50    0.472    89.10
2079.50    0.478    89.85
2080.50    0.484    90.57
2081.50    0.490    91.28
2082.50    0.497    91.96
2083.50    0.503    92.64
2084.50    0.509    93.29
2085.50    0.516    93.93
2086.50    0.522    94.55
2087.50    0.528    95.16
2088.50    0.535    95.75
2089.50    0.541    96.33
2090.50    0.548    96.89
2091.50    0.554    97.45
2092.50    0.560    97.98
2093.50    0.567    98.51
2094.50    0.573    99.03
2095.50    0.580    99.53
2096.50    0.586   100.02
2097.50    0.593   100.51
2098.50    0.599   100.98
2099.50    0.605   101.44
2100.50    0.612   101.89
2101.50    0.618   102.34
2102.50    0.624   102.77
2103.50    0.631   103.19
2104.50    0.637   103.61
2105.50    0.643   104.02
2106.50    0.650   104.42
2107.50    0.656   104.81
2108.50    0.662   105.20
2109.50    0.668   105.58
2110.50    0.674   105.95
2111.50    0.680   106.32
2112.50    0.686   106.67
2113.50    0.692   107.03
2114.50    0.698   107.37
2115.50    0.704   107.71
2116.50    0.710   108.05
2117.50    0.716   108.38
2118.50    0.722   108.70
2119.50    0.727   109.02
2120.50    0.733   109.34
2121.50    0.739   109.65
2122.50    0.744   109.95
2123.50    0.750   110.25
2124.50    0.755   110.55
2125.50    0.760   110.84
2126.50    0.766   111.13
2127.50    0.771   111.41
2128.50    0.776   111.69
2129.50    0.781   111.96
2130.50    0.786   112.24
2131.50    0.791   112.51
2132.50    0.796   112.77
2133.50    0.801   113.04
2134.50    0.806   113.29
2135.50    0.810   113.55
2136.50    0.815   113.80
2137.50    0.819   114.06
2138.50    0.824   114.30
2139.50    0.828   114.55
2140.50    0.832   114.79
2141.50    0.837   115.03
2142.50    0.841   115.27
2143.50    0.845   115.51
2144.50    0.848   115.74
2145.50    0.852   115.97
2146.50    0.856   116.20
2147.50    0.859   116.43
2148.50    0.863   116.65
2149.50    0.866   116.88
2150.50    0.870   117.10
2151.50    0.873   117.32
2152.50    0.876   117.54
2153.50    0.879   117.76
2154.50    0.881   117.97
2155.50    0.884   118.19
2156.50    0.887   118.40
2157.50    0.889   118.62
2158.50    0.891   118.83
2159.50    0.893   119.04
2160.50    0.895   119.25
2161.50    0.897   119.45
2162.50    0.899   119.66
2163.50    0.901   119.87
2164.50    0.902   120.08
2165.50    0.904   120.28
2166.50    0.905   120.49
2167.50    0.906   120.69
2168.50    0.907   120.89
2169.50    0.907   121.10
2170.50    0.908   121.30
2171.50    0.908   121.50
2172.50    0.908   121.71
2173.50    0.909   121.91
2174.50    0.908   122.11
2175.50    0.908   122.32
2176.50    0.908   122.52
2177.50    0.907   122.72
2178.50    0.906   122.93
2179.50    0.905   123.13
2180.50    0.904   123.33
2181.50    0.903   123.54
2182.50    0.901   123.75
2183.50    0.899   123.95
2184.50    0.897   124.16
2185.50    0.895   124.37
2186.50    0.893   124.58
2187.50    0.890   124.79
2188.50    0.887   125.00
2189.50    0.884   125.21
2190.50    0.881   125.43
2191.50    0.877   125.65
2192.50    0.873   125.87
2193.50    0.869   126.09
2194.50    0.865   126.31
2195.50    0.861   126.53
2196.50    0.856   126.76
2197.50    0.851   126.99
2198.50    0.845   127.22
2199.50    0.840   127.46
2200.50    0.834   127.70
2201.50    0.828   127.94
2202.50    0.822   128.19
2203.50    0.815   128.44
2204.50    0.808   128.69
2205.50    0.801   128.95
2206.50    0.794   129.21
2207.50    0.786   129.48
2208.50    0.778   129.76
2209.50    0.769   130.04
2210.50    0.761   130.32
2211.50    0.752   130.61
2212.50    0.742   130.91
2213.50    0.733   131.22
2214.50    0.723   131.54
2215.50    0.713   131.86
2216.50    0.702   132.20
2217.50    0.691   132.54
2218.50    0.680   132.90
2219.50    0.668   133.27
2220.50    0.656   133.65
2221.50    0.644   134.05
2222.50    0.632   134.46
2223.50    0.619   134.89
2224.50    0.606   135.33
2225.50    0.592   135.80
2226.50    0.578   136.29
2227.50    0.564   136.80
2228.50    0.550   137.34
2229.50    0.535   137.91
2230.50    0.520   138.51
2231.50    0.505   139.15
2232.50    0.489   139.83
2233.50    0.473   140.56
2234.50    0.457   141.33
2235.50    0.440   142.16
2236.50    0.424   143.06
2237.50    0.407   144.03
2238.50    0.390   145.09
2239.50    0.373   146.24
2240.50    0.355   147.51
2241.50    0.338   148.90
2242.50    0.320   150.45
2243.50    0.303   152.18
2244.50    0.285   154.12
2245.50    0.268   156.31






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 18:21:54



www.stella-vega.de