Double Star Calculator - Orbit

Orbital Elements for BU1030AB
WDS: BU1030AB WDS ID/Discoverer
P: 571.000 Orbital period (years)
a: 0.802 Semi-major axis (arcseconds)
i: 123.7 Inclination (degrees)
Ω: 97.4 Longitude of ascending node (degrees)
T: 2156.000 Epoch of periastron passage (year)
e: 0.084 Eccentricity
ω: 270.3 Longitude of periastron (degrees)
Start-Year: 1739.5 Year
End-Year: 2310.5 Year
Epoch: 2026.5 Besselian Epoch
Further data from the WDS Sixth Catalog of Orbits for BU1030AB
Position: 031006.57+214449.5 Epoch-2000 right ascension and declination
WDS-ID: 03101+2145 WDS designation
Discoverer Code: BU1030AB Discover designation and components
ADS number: 2375 Aitken Double Star catalog
HD number: 19616 HD catalog number
Hipparcos number: 14715 Hipparcos catalog number
V1: 7.81 Magnitude of the primary
V2: 9.67 Magnitude of the secondary
Equinox: 2000 Equinox
Date: 2007 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: Zir2012b Reference

Double Star Orbit for BU1030AB



WDS 6th Orbit including measures of BU1030AB

-- 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 BU1030AB
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.798   277.94
--------------------------
1739.50    0.791    87.72
1740.50    0.790    87.36
1741.50    0.789    87.00
1742.50    0.788    86.64
1743.50    0.787    86.28
1744.50    0.785    85.92
1745.50    0.784    85.56
1746.50    0.783    85.19
1747.50    0.781    84.82
1748.50    0.780    84.46
1749.50    0.778    84.09
1750.50    0.776    83.71
1751.50    0.775    83.34
1752.50    0.773    82.97
1753.50    0.771    82.59
1754.50    0.769    82.21
1755.50    0.767    81.83
1756.50    0.765    81.45
1757.50    0.763    81.07
1758.50    0.761    80.68
1759.50    0.759    80.30
1760.50    0.757    79.91
1761.50    0.755    79.51
1762.50    0.753    79.12
1763.50    0.750    78.72
1764.50    0.748    78.32
1765.50    0.746    77.92
1766.50    0.743    77.52
1767.50    0.741    77.11
1768.50    0.738    76.70
1769.50    0.736    76.29
1770.50    0.733    75.87
1771.50    0.730    75.45
1772.50    0.728    75.03
1773.50    0.725    74.60
1774.50    0.722    74.18
1775.50    0.720    73.74
1776.50    0.717    73.31
1777.50    0.714    72.87
1778.50    0.711    72.43
1779.50    0.708    71.99
1780.50    0.705    71.54
1781.50    0.702    71.08
1782.50    0.699    70.63
1783.50    0.696    70.17
1784.50    0.693    69.70
1785.50    0.690    69.23
1786.50    0.687    68.76
1787.50    0.684    68.28
1788.50    0.681    67.80
1789.50    0.677    67.31
1790.50    0.674    66.82
1791.50    0.671    66.33
1792.50    0.668    65.83
1793.50    0.665    65.32
1794.50    0.661    64.81
1795.50    0.658    64.30
1796.50    0.655    63.78
1797.50    0.651    63.25
1798.50    0.648    62.72
1799.50    0.645    62.18
1800.50    0.641    61.64
1801.50    0.638    61.09
1802.50    0.635    60.54
1803.50    0.631    59.98
1804.50    0.628    59.42
1805.50    0.625    58.84
1806.50    0.621    58.27
1807.50    0.618    57.68
1808.50    0.615    57.09
1809.50    0.611    56.50
1810.50    0.608    55.89
1811.50    0.605    55.28
1812.50    0.601    54.67
1813.50    0.598    54.04
1814.50    0.595    53.41
1815.50    0.591    52.77
1816.50    0.588    52.13
1817.50    0.585    51.48
1818.50    0.582    50.82
1819.50    0.579    50.15
1820.50    0.575    49.48
1821.50    0.572    48.80
1822.50    0.569    48.11
1823.50    0.566    47.41
1824.50    0.563    46.71
1825.50    0.560    46.00
1826.50    0.557    45.28
1827.50    0.554    44.55
1828.50    0.551    43.82
1829.50    0.548    43.07
1830.50    0.545    42.32
1831.50    0.542    41.57
1832.50    0.540    40.80
1833.50    0.537    40.03
1834.50    0.534    39.24
1835.50    0.531    38.45
1836.50    0.529    37.66
1837.50    0.526    36.85
1838.50    0.524    36.04
1839.50    0.521    35.22
1840.50    0.519    34.39
1841.50    0.517    33.55
1842.50    0.514    32.71
1843.50    0.512    31.86
1844.50    0.510    31.00
1845.50    0.508    30.14
1846.50    0.506    29.26
1847.50    0.504    28.38
1848.50    0.502    27.50
1849.50    0.501    26.61
1850.50    0.499    25.71
1851.50    0.497    24.81
1852.50    0.496    23.90
1853.50    0.494    22.98
1854.50    0.493    22.06
1855.50    0.492    21.14
1856.50    0.490    20.21
1857.50    0.489    19.27
1858.50    0.488    18.33
1859.50    0.487    17.39
1860.50    0.486    16.45
1861.50    0.486    15.50
1862.50    0.485    14.54
1863.50    0.484    13.59
1864.50    0.484    12.63
1865.50    0.483    11.67
1866.50    0.483    10.71
1867.50    0.483     9.75
1868.50    0.482     8.79
1869.50    0.482     7.82
1870.50    0.482     6.86
1871.50    0.482     5.90
1872.50    0.483     4.93
1873.50    0.483     3.97
1874.50    0.483     3.01
1875.50    0.484     2.05
1876.50    0.484     1.09
1877.50    0.485     0.14
1878.50    0.486   359.19
1879.50    0.486   358.24
1880.50    0.487   357.29
1881.50    0.488   356.35
1882.50    0.489   355.41
1883.50    0.491   354.48
1884.50    0.492   353.55
1885.50    0.493   352.63
1886.50    0.495   351.71
1887.50    0.496   350.79
1888.50    0.498   349.88
1889.50    0.499   348.98
1890.50    0.501   348.09
1891.50    0.503   347.20
1892.50    0.505   346.31
1893.50    0.506   345.43
1894.50    0.508   344.56
1895.50    0.511   343.70
1896.50    0.513   342.84
1897.50    0.515   341.99
1898.50    0.517   341.15
1899.50    0.519   340.32
1900.50    0.522   339.49
1901.50    0.524   338.67
1902.50    0.527   337.86
1903.50    0.529   337.05
1904.50    0.532   336.26
1905.50    0.535   335.47
1906.50    0.537   334.69
1907.50    0.540   333.92
1908.50    0.543   333.15
1909.50    0.546   332.39
1910.50    0.548   331.64
1911.50    0.551   330.90
1912.50    0.554   330.17
1913.50    0.557   329.44
1914.50    0.560   328.73
1915.50    0.563   328.02
1916.50    0.566   327.31
1917.50    0.570   326.62
1918.50    0.573   325.93
1919.50    0.576   325.25
1920.50    0.579   324.58
1921.50    0.582   323.91
1922.50    0.586   323.26
1923.50    0.589   322.61
1924.50    0.592   321.96
1925.50    0.595   321.33
1926.50    0.599   320.70
1927.50    0.602   320.08
1928.50    0.605   319.46
1929.50    0.609   318.85
1930.50    0.612   318.25
1931.50    0.615   317.65
1932.50    0.619   317.07
1933.50    0.622   316.48
1934.50    0.625   315.91
1935.50    0.629   315.34
1936.50    0.632   314.77
1937.50    0.635   314.21
1938.50    0.639   313.66
1939.50    0.642   313.11
1940.50    0.645   312.57
1941.50    0.649   312.04
1942.50    0.652   311.51
1943.50    0.655   310.98
1944.50    0.659   310.46
1945.50    0.662   309.95
1946.50    0.665   309.44
1947.50    0.668   308.94
1948.50    0.672   308.44
1949.50    0.675   307.94
1950.50    0.678   307.45
1951.50    0.681   306.97
1952.50    0.684   306.49
1953.50    0.688   306.01
1954.50    0.691   305.54
1955.50    0.694   305.07
1956.50    0.697   304.61
1957.50    0.700   304.15
1958.50    0.703   303.69
1959.50    0.706   303.24
1960.50    0.709   302.79
1961.50    0.712   302.35
1962.50    0.715   301.91
1963.50    0.717   301.47
1964.50    0.720   301.03
1965.50    0.723   300.60
1966.50    0.726   300.18
1967.50    0.728   299.75
1968.50    0.731   299.33
1969.50    0.734   298.91
1970.50    0.736   298.50
1971.50    0.739   298.09
1972.50    0.741   297.68
1973.50    0.744   297.27
1974.50    0.746   296.87
1975.50    0.749   296.47
1976.50    0.751   296.07
1977.50    0.753   295.67
1978.50    0.756   295.28
1979.50    0.758   294.89
1980.50    0.760   294.50
1981.50    0.762   294.11
1982.50    0.764   293.72
1983.50    0.766   293.34
1984.50    0.768   292.96
1985.50    0.770   292.58
1986.50    0.772   292.20
1987.50    0.774   291.83
1988.50    0.775   291.45
1989.50    0.777   291.08
1990.50    0.779   290.71
1991.50    0.780   290.34
1992.50    0.782   289.97
1993.50    0.783   289.61
1994.50    0.785   289.24
1995.50    0.786   288.88
1996.50    0.787   288.52
1997.50    0.789   288.16
1998.50    0.790   287.80
1999.50    0.791   287.44
2000.50    0.792   287.08
2001.50    0.793   286.72
2002.50    0.794   286.37
2003.50    0.795   286.01
2004.50    0.796   285.66
2005.50    0.797   285.30
2006.50    0.797   284.95
2007.50    0.798   284.60
2008.50    0.798   284.25
2009.50    0.799   283.90
2010.50    0.799   283.54
2011.50    0.800   283.19
2012.50    0.800   282.84
2013.50    0.800   282.49
2014.50    0.801   282.14
2015.50    0.801   281.79
2016.50    0.801   281.44
2017.50    0.801   281.09
2018.50    0.801   280.74
2019.50    0.801   280.39
2020.50    0.800   280.04
2021.50    0.800   279.69
2022.50    0.800   279.34
2023.50    0.799   278.99
2024.50    0.799   278.64
2025.50    0.798   278.29
2026.50    0.798   277.94
2027.50    0.797   277.59
2028.50    0.796   277.23
2029.50    0.796   276.88
2030.50    0.795   276.52
2031.50    0.794   276.17
2032.50    0.793   275.81
2033.50    0.792   275.46
2034.50    0.790   275.10
2035.50    0.789   274.74
2036.50    0.788   274.38
2037.50    0.787   274.02
2038.50    0.785   273.65
2039.50    0.784   273.29
2040.50    0.782   272.92
2041.50    0.780   272.56
2042.50    0.779   272.19
2043.50    0.777   271.82
2044.50    0.775   271.44
2045.50    0.773   271.07
2046.50    0.771   270.69
2047.50    0.769   270.32
2048.50    0.767   269.94
2049.50    0.765   269.55
2050.50    0.763   269.17
2051.50    0.760   268.78
2052.50    0.758   268.39
2053.50    0.756   268.00
2054.50    0.753   267.61
2055.50    0.751   267.21
2056.50    0.748   266.81
2057.50    0.745   266.41
2058.50    0.743   266.01
2059.50    0.740   265.60
2060.50    0.737   265.19
2061.50    0.734   264.77
2062.50    0.731   264.35
2063.50    0.728   263.93
2064.50    0.725   263.51
2065.50    0.722   263.08
2066.50    0.718   262.65
2067.50    0.715   262.21
2068.50    0.712   261.77
2069.50    0.708   261.32
2070.50    0.705   260.88
2071.50    0.701   260.42
2072.50    0.698   259.96
2073.50    0.694   259.50
2074.50    0.690   259.03
2075.50    0.687   258.56
2076.50    0.683   258.08
2077.50    0.679   257.60
2078.50    0.675   257.11
2079.50    0.671   256.62
2080.50    0.667   256.12
2081.50    0.663   255.61
2082.50    0.659   255.10
2083.50    0.655   254.58
2084.50    0.651   254.05
2085.50    0.647   253.52
2086.50    0.643   252.98
2087.50    0.639   252.44
2088.50    0.634   251.88
2089.50    0.630   251.32
2090.50    0.626   250.75
2091.50    0.621   250.18
2092.50    0.617   249.59
2093.50    0.613   249.00
2094.50    0.608   248.40
2095.50    0.604   247.79
2096.50    0.599   247.17
2097.50    0.595   246.54
2098.50    0.590   245.90
2099.50    0.586   245.25
2100.50    0.581   244.59
2101.50    0.577   243.92
2102.50    0.572   243.24
2103.50    0.568   242.55
2104.50    0.563   241.85
2105.50    0.559   241.14
2106.50    0.554   240.41
2107.50    0.549   239.68
2108.50    0.545   238.93
2109.50    0.540   238.17
2110.50    0.536   237.39
2111.50    0.531   236.60
2112.50    0.527   235.80
2113.50    0.523   234.99
2114.50    0.518   234.16
2115.50    0.514   233.32
2116.50    0.509   232.46
2117.50    0.505   231.59
2118.50    0.501   230.71
2119.50    0.497   229.80
2120.50    0.492   228.89
2121.50    0.488   227.96
2122.50    0.484   227.01
2123.50    0.480   226.04
2124.50    0.476   225.06
2125.50    0.473   224.07
2126.50    0.469   223.06
2127.50    0.465   222.03
2128.50    0.461   220.98
2129.50    0.458   219.92
2130.50    0.454   218.84
2131.50    0.451   217.75
2132.50    0.448   216.64
2133.50    0.445   215.51
2134.50    0.441   214.37
2135.50    0.439   213.21
2136.50    0.436   212.04
2137.50    0.433   210.85
2138.50    0.430   209.64
2139.50    0.428   208.43
2140.50    0.425   207.19
2141.50    0.423   205.95
2142.50    0.421   204.69
2143.50    0.419   203.42
2144.50    0.417   202.14
2145.50    0.416   200.85
2146.50    0.414   199.55
2147.50    0.413   198.24
2148.50    0.412   196.92
2149.50    0.411   195.59
2150.50    0.410   194.26
2151.50    0.409   192.92
2152.50    0.408   191.58
2153.50    0.408   190.23
2154.50    0.408   188.88
2155.50    0.408   187.53
2156.50    0.408   186.18
2157.50    0.408   184.84
2158.50    0.408   183.49
2159.50    0.409   182.15
2160.50    0.410   180.81
2161.50    0.410   179.47
2162.50    0.411   178.15
2163.50    0.413   176.82
2164.50    0.414   175.51
2165.50    0.415   174.21
2166.50    0.417   172.91
2167.50    0.419   171.63
2168.50    0.421   170.36
2169.50    0.423   169.10
2170.50    0.425   167.85
2171.50    0.427   166.61
2172.50    0.430   165.39
2173.50    0.432   164.19
2174.50    0.435   162.99
2175.50    0.438   161.82
2176.50    0.441   160.66
2177.50    0.444   159.51
2178.50    0.447   158.38
2179.50    0.450   157.26
2180.50    0.454   156.17
2181.50    0.457   155.09
2182.50    0.461   154.02
2183.50    0.464   152.97
2184.50    0.468   151.94
2185.50    0.472   150.92
2186.50    0.475   149.92
2187.50    0.479   148.94
2188.50    0.483   147.97
2189.50    0.487   147.02
2190.50    0.492   146.08
2191.50    0.496   145.16
2192.50    0.500   144.26
2193.50    0.504   143.37
2194.50    0.508   142.50
2195.50    0.513   141.64
2196.50    0.517   140.79
2197.50    0.522   139.96
2198.50    0.526   139.14
2199.50    0.530   138.34
2200.50    0.535   137.55
2201.50    0.539   136.77
2202.50    0.544   136.01
2203.50    0.548   135.25
2204.50    0.553   134.51
2205.50    0.557   133.79
2206.50    0.562   133.07
2207.50    0.567   132.37
2208.50    0.571   131.67
2209.50    0.576   130.99
2210.50    0.580   130.32
2211.50    0.585   129.66
2212.50    0.589   129.01
2213.50    0.594   128.37
2214.50    0.598   127.74
2215.50    0.603   127.11
2216.50    0.607   126.50
2217.50    0.612   125.90
2218.50    0.616   125.30
2219.50    0.620   124.72
2220.50    0.625   124.14
2221.50    0.629   123.57
2222.50    0.633   123.00
2223.50    0.638   122.45
2224.50    0.642   121.90
2225.50    0.646   121.36
2226.50    0.650   120.83
2227.50    0.654   120.30
2228.50    0.658   119.78
2229.50    0.662   119.26
2230.50    0.666   118.76
2231.50    0.670   118.26
2232.50    0.674   117.76
2233.50    0.678   117.27
2234.50    0.682   116.78
2235.50    0.686   116.30
2236.50    0.690   115.83
2237.50    0.693   115.36
2238.50    0.697   114.90
2239.50    0.700   114.44
2240.50    0.704   113.98
2241.50    0.707   113.53
2242.50    0.711   113.09
2243.50    0.714   112.65
2244.50    0.717   112.21
2245.50    0.721   111.77
2246.50    0.724   111.34
2247.50    0.727   110.92
2248.50    0.730   110.50
2249.50    0.733   110.08
2250.50    0.736   109.66
2251.50    0.739   109.25
2252.50    0.742   108.84
2253.50    0.744   108.43
2254.50    0.747   108.03
2255.50    0.750   107.63
2256.50    0.752   107.23
2257.50    0.755   106.84
2258.50    0.757   106.45
2259.50    0.760   106.06
2260.50    0.762   105.67
2261.50    0.764   105.28
2262.50    0.766   104.90
2263.50    0.768   104.52
2264.50    0.770   104.14
2265.50    0.772   103.76
2266.50    0.774   103.39
2267.50    0.776   103.02
2268.50    0.778   102.64
2269.50    0.780   102.28
2270.50    0.781   101.91
2271.50    0.783   101.54
2272.50    0.784   101.18
2273.50    0.786   100.81
2274.50    0.787   100.45
2275.50    0.788   100.09
2276.50    0.790    99.73
2277.50    0.791    99.37
2278.50    0.792    99.01
2279.50    0.793    98.65
2280.50    0.794    98.30
2281.50    0.795    97.94
2282.50    0.796    97.59
2283.50    0.796    97.23
2284.50    0.797    96.88
2285.50    0.798    96.53
2286.50    0.798    96.18
2287.50    0.799    95.82
2288.50    0.799    95.47
2289.50    0.799    95.12
2290.50    0.800    94.77
2291.50    0.800    94.42
2292.50    0.800    94.07
2293.50    0.800    93.72
2294.50    0.800    93.37
2295.50    0.800    93.02
2296.50    0.800    92.67
2297.50    0.800    92.32
2298.50    0.799    91.97
2299.50    0.799    91.62
2300.50    0.799    91.27
2301.50    0.798    90.91
2302.50    0.798    90.56
2303.50    0.797    90.21
2304.50    0.797    89.86
2305.50    0.796    89.50
2306.50    0.795    89.15
2307.50    0.794    88.79
2308.50    0.793    88.44
2309.50    0.792    88.08






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 15:08:19



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