Double Star Calculator - Orbit

Orbital Elements for BU1115DE
WDS: BU1115DE WDS ID/Discoverer
P: 675.500 Orbital period (years)
a: 1.01 Semi-major axis (arcseconds)
i: 134.8 Inclination (degrees)
Ω: 152.7 Longitude of ascending node (degrees)
T: 2008.600 Epoch of periastron passage (year)
e: 0.707 Eccentricity
ω: 260.4 Longitude of periastron (degrees)
Start-Year: 1687.25 Year
End-Year: 2362.75 Year
Epoch: 2026.5 Besselian Epoch
Further data from the WDS Sixth Catalog of Orbits for BU1115DE
Position: 162524.29-232736.6 Epoch-2000 right ascension and declination
WDS-ID: 16256-2327 WDS designation
Discoverer Code: BU1115DE Discover designation and components
ADS number: 10045 Aitken Double Star catalog
HD number: 147888 HD catalog number
Hipparcos number: 80461 Hipparcos catalog number
V1: 6.81 Magnitude of the primary
V2: 8.42 Magnitude of the secondary
Equinox: 2000 Equinox
Date: 1991 Date of last observation
Orbit grade: 5 Orbit grade, ranging from :
1 = Definitive
2 = Good
3 = Reliable
4 = Preliminary
5 = Indeterminate
Flags: n Flags
Ephemerides: Ephemerides
Code: Nov2007b Reference

Double Star Orbit for BU1115DE



WDS 6th Orbit including measures of BU1115DE

-- 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 BU1115DE
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.355   178.79
--------------------------
1687.25    1.223    73.25
1688.25    1.223    73.07
1689.25    1.222    72.89
1690.25    1.221    72.71
1691.25    1.221    72.52
1692.25    1.220    72.34
1693.25    1.219    72.16
1694.25    1.219    71.98
1695.25    1.218    71.80
1696.25    1.217    71.61
1697.25    1.217    71.43
1698.25    1.216    71.25
1699.25    1.215    71.06
1700.25    1.215    70.88
1701.25    1.214    70.70
1702.25    1.213    70.51
1703.25    1.212    70.33
1704.25    1.212    70.14
1705.25    1.211    69.96
1706.25    1.210    69.77
1707.25    1.209    69.59
1708.25    1.209    69.40
1709.25    1.208    69.22
1710.25    1.207    69.03
1711.25    1.206    68.85
1712.25    1.205    68.66
1713.25    1.204    68.47
1714.25    1.204    68.29
1715.25    1.203    68.10
1716.25    1.202    67.91
1717.25    1.201    67.72
1718.25    1.200    67.54
1719.25    1.199    67.35
1720.25    1.198    67.16
1721.25    1.197    66.97
1722.25    1.197    66.78
1723.25    1.196    66.59
1724.25    1.195    66.40
1725.25    1.194    66.21
1726.25    1.193    66.02
1727.25    1.192    65.83
1728.25    1.191    65.64
1729.25    1.190    65.45
1730.25    1.189    65.26
1731.25    1.188    65.07
1732.25    1.187    64.87
1733.25    1.186    64.68
1734.25    1.185    64.49
1735.25    1.184    64.30
1736.25    1.183    64.10
1737.25    1.182    63.91
1738.25    1.181    63.71
1739.25    1.180    63.52
1740.25    1.179    63.32
1741.25    1.178    63.13
1742.25    1.176    62.93
1743.25    1.175    62.74
1744.25    1.174    62.54
1745.25    1.173    62.35
1746.25    1.172    62.15
1747.25    1.171    61.95
1748.25    1.170    61.75
1749.25    1.169    61.55
1750.25    1.167    61.36
1751.25    1.166    61.16
1752.25    1.165    60.96
1753.25    1.164    60.76
1754.25    1.163    60.56
1755.25    1.161    60.36
1756.25    1.160    60.16
1757.25    1.159    59.95
1758.25    1.158    59.75
1759.25    1.157    59.55
1760.25    1.155    59.35
1761.25    1.154    59.14
1762.25    1.153    58.94
1763.25    1.152    58.74
1764.25    1.150    58.53
1765.25    1.149    58.33
1766.25    1.148    58.12
1767.25    1.146    57.92
1768.25    1.145    57.71
1769.25    1.144    57.50
1770.25    1.142    57.30
1771.25    1.141    57.09
1772.25    1.140    56.88
1773.25    1.138    56.67
1774.25    1.137    56.46
1775.25    1.136    56.25
1776.25    1.134    56.04
1777.25    1.133    55.83
1778.25    1.131    55.62
1779.25    1.130    55.41
1780.25    1.128    55.19
1781.25    1.127    54.98
1782.25    1.126    54.77
1783.25    1.124    54.55
1784.25    1.123    54.34
1785.25    1.121    54.12
1786.25    1.120    53.91
1787.25    1.118    53.69
1788.25    1.117    53.47
1789.25    1.115    53.26
1790.25    1.114    53.04
1791.25    1.112    52.82
1792.25    1.111    52.60
1793.25    1.109    52.38
1794.25    1.107    52.16
1795.25    1.106    51.94
1796.25    1.104    51.72
1797.25    1.103    51.49
1798.25    1.101    51.27
1799.25    1.100    51.05
1800.25    1.098    50.82
1801.25    1.096    50.60
1802.25    1.095    50.37
1803.25    1.093    50.15
1804.25    1.091    49.92
1805.25    1.090    49.69
1806.25    1.088    49.46
1807.25    1.086    49.23
1808.25    1.085    49.00
1809.25    1.083    48.77
1810.25    1.081    48.54
1811.25    1.079    48.31
1812.25    1.078    48.08
1813.25    1.076    47.84
1814.25    1.074    47.61
1815.25    1.072    47.37
1816.25    1.071    47.14
1817.25    1.069    46.90
1818.25    1.067    46.66
1819.25    1.065    46.42
1820.25    1.063    46.19
1821.25    1.062    45.95
1822.25    1.060    45.70
1823.25    1.058    45.46
1824.25    1.056    45.22
1825.25    1.054    44.98
1826.25    1.052    44.73
1827.25    1.050    44.49
1828.25    1.048    44.24
1829.25    1.047    43.99
1830.25    1.045    43.75
1831.25    1.043    43.50
1832.25    1.041    43.25
1833.25    1.039    43.00
1834.25    1.037    42.75
1835.25    1.035    42.49
1836.25    1.033    42.24
1837.25    1.031    41.99
1838.25    1.029    41.73
1839.25    1.027    41.47
1840.25    1.025    41.22
1841.25    1.023    40.96
1842.25    1.020    40.70
1843.25    1.018    40.44
1844.25    1.016    40.18
1845.25    1.014    39.91
1846.25    1.012    39.65
1847.25    1.010    39.38
1848.25    1.008    39.12
1849.25    1.006    38.85
1850.25    1.003    38.58
1851.25    1.001    38.31
1852.25    0.999    38.04
1853.25    0.997    37.77
1854.25    0.995    37.50
1855.25    0.992    37.22
1856.25    0.990    36.95
1857.25    0.988    36.67
1858.25    0.985    36.39
1859.25    0.983    36.11
1860.25    0.981    35.83
1861.25    0.979    35.55
1862.25    0.976    35.26
1863.25    0.974    34.98
1864.25    0.971    34.69
1865.25    0.969    34.40
1866.25    0.967    34.12
1867.25    0.964    33.82
1868.25    0.962    33.53
1869.25    0.959    33.24
1870.25    0.957    32.94
1871.25    0.954    32.65
1872.25    0.952    32.35
1873.25    0.949    32.05
1874.25    0.947    31.75
1875.25    0.944    31.44
1876.25    0.942    31.14
1877.25    0.939    30.83
1878.25    0.937    30.53
1879.25    0.934    30.22
1880.25    0.931    29.90
1881.25    0.929    29.59
1882.25    0.926    29.28
1883.25    0.923    28.96
1884.25    0.921    28.64
1885.25    0.918    28.32
1886.25    0.915    28.00
1887.25    0.912    27.67
1888.25    0.910    27.35
1889.25    0.907    27.02
1890.25    0.904    26.69
1891.25    0.901    26.35
1892.25    0.898    26.02
1893.25    0.895    25.68
1894.25    0.892    25.34
1895.25    0.889    25.00
1896.25    0.887    24.66
1897.25    0.884    24.31
1898.25    0.881    23.96
1899.25    0.878    23.61
1900.25    0.874    23.26
1901.25    0.871    22.91
1902.25    0.868    22.55
1903.25    0.865    22.19
1904.25    0.862    21.82
1905.25    0.859    21.46
1906.25    0.856    21.09
1907.25    0.852    20.72
1908.25    0.849    20.34
1909.25    0.846    19.97
1910.25    0.843    19.59
1911.25    0.839    19.20
1912.25    0.836    18.82
1913.25    0.833    18.43
1914.25    0.829    18.04
1915.25    0.826    17.64
1916.25    0.822    17.24
1917.25    0.819    16.84
1918.25    0.815    16.43
1919.25    0.812    16.02
1920.25    0.808    15.61
1921.25    0.804    15.19
1922.25    0.801    14.77
1923.25    0.797    14.35
1924.25    0.793    13.92
1925.25    0.789    13.49
1926.25    0.785    13.05
1927.25    0.782    12.61
1928.25    0.778    12.16
1929.25    0.774    11.71
1930.25    0.770    11.26
1931.25    0.766    10.80
1932.25    0.762    10.33
1933.25    0.758     9.86
1934.25    0.753     9.39
1935.25    0.749     8.91
1936.25    0.745     8.42
1937.25    0.741     7.93
1938.25    0.736     7.43
1939.25    0.732     6.93
1940.25    0.727     6.42
1941.25    0.723     5.91
1942.25    0.718     5.39
1943.25    0.714     4.86
1944.25    0.709     4.32
1945.25    0.704     3.78
1946.25    0.699     3.23
1947.25    0.695     2.67
1948.25    0.690     2.11
1949.25    0.685     1.53
1950.25    0.680     0.95
1951.25    0.674     0.36
1952.25    0.669   359.76
1953.25    0.664   359.15
1954.25    0.659   358.53
1955.25    0.653   357.90
1956.25    0.648   357.26
1957.25    0.642   356.61
1958.25    0.636   355.94
1959.25    0.630   355.27
1960.25    0.625   354.58
1961.25    0.619   353.88
1962.25    0.612   353.16
1963.25    0.606   352.43
1964.25    0.600   351.69
1965.25    0.594   350.93
1966.25    0.587   350.15
1967.25    0.580   349.36
1968.25    0.574   348.54
1969.25    0.567   347.71
1970.25    0.560   346.86
1971.25    0.553   345.98
1972.25    0.545   345.08
1973.25    0.538   344.16
1974.25    0.531   343.21
1975.25    0.523   342.23
1976.25    0.515   341.23
1977.25    0.507   340.19
1978.25    0.499   339.12
1979.25    0.490   338.01
1980.25    0.482   336.86
1981.25    0.473   335.68
1982.25    0.464   334.44
1983.25    0.455   333.16
1984.25    0.446   331.82
1985.25    0.436   330.43
1986.25    0.427   328.98
1987.25    0.417   327.45
1988.25    0.407   325.85
1989.25    0.396   324.17
1990.25    0.386   322.40
1991.25    0.375   320.53
1992.25    0.364   318.55
1993.25    0.354   316.45
1994.25    0.342   314.21
1995.25    0.331   311.82
1996.25    0.320   309.27
1997.25    0.309   306.52
1998.25    0.297   303.57
1999.25    0.286   300.39
2000.25    0.275   296.96
2001.25    0.265   293.24
2002.25    0.255   289.23
2003.25    0.245   284.89
2004.25    0.236   280.22
2005.25    0.229   275.20
2006.25    0.222   269.85
2007.25    0.216   264.21
2008.25    0.212   258.31
2009.25    0.210   252.23
2010.25    0.209   246.06
2011.25    0.210   239.91
2012.25    0.213   233.86
2013.25    0.217   228.01
2014.25    0.223   222.42
2015.25    0.230   217.15
2016.25    0.239   212.22
2017.25    0.248   207.63
2018.25    0.258   203.39
2019.25    0.269   199.48
2020.25    0.280   195.88
2021.25    0.291   192.55
2022.25    0.303   189.49
2023.25    0.315   186.65
2024.25    0.327   184.03
2025.25    0.340   181.59
2026.25    0.352   179.33
2027.25    0.364   177.22
2028.25    0.376   175.24
2029.25    0.388   173.39
2030.25    0.400   171.64
2031.25    0.412   170.00
2032.25    0.424   168.45
2033.25    0.435   166.98
2034.25    0.447   165.59
2035.25    0.458   164.27
2036.25    0.469   163.01
2037.25    0.480   161.80
2038.25    0.491   160.65
2039.25    0.501   159.55
2040.25    0.511   158.49
2041.25    0.522   157.48
2042.25    0.532   156.50
2043.25    0.542   155.56
2044.25    0.551   154.65
2045.25    0.561   153.78
2046.25    0.570   152.93
2047.25    0.579   152.11
2048.25    0.588   151.31
2049.25    0.597   150.54
2050.25    0.606   149.79
2051.25    0.615   149.07
2052.25    0.623   148.36
2053.25    0.632   147.67
2054.25    0.640   147.00
2055.25    0.648   146.35
2056.25    0.656   145.71
2057.25    0.664   145.09
2058.25    0.672   144.48
2059.25    0.679   143.89
2060.25    0.687   143.31
2061.25    0.694   142.74
2062.25    0.701   142.18
2063.25    0.709   141.64
2064.25    0.716   141.10
2065.25    0.723   140.58
2066.25    0.729   140.06
2067.25    0.736   139.56
2068.25    0.743   139.06
2069.25    0.749   138.58
2070.25    0.756   138.10
2071.25    0.762   137.63
2072.25    0.769   137.17
2073.25    0.775   136.71
2074.25    0.781   136.26
2075.25    0.787   135.82
2076.25    0.793   135.39
2077.25    0.799   134.96
2078.25    0.805   134.54
2079.25    0.810   134.13
2080.25    0.816   133.72
2081.25    0.822   133.31
2082.25    0.827   132.91
2083.25    0.833   132.52
2084.25    0.838   132.13
2085.25    0.843   131.75
2086.25    0.849   131.37
2087.25    0.854   131.00
2088.25    0.859   130.63
2089.25    0.864   130.26
2090.25    0.869   129.90
2091.25    0.874   129.54
2092.25    0.879   129.19
2093.25    0.883   128.84
2094.25    0.888   128.50
2095.25    0.893   128.16
2096.25    0.898   127.82
2097.25    0.902   127.48
2098.25    0.907   127.15
2099.25    0.911   126.82
2100.25    0.915   126.50
2101.25    0.920   126.18
2102.25    0.924   125.86
2103.25    0.928   125.54
2104.25    0.933   125.23
2105.25    0.937   124.92
2106.25    0.941   124.61
2107.25    0.945   124.31
2108.25    0.949   124.01
2109.25    0.953   123.71
2110.25    0.957   123.41
2111.25    0.961   123.11
2112.25    0.965   122.82
2113.25    0.968   122.53
2114.25    0.972   122.24
2115.25    0.976   121.96
2116.25    0.979   121.67
2117.25    0.983   121.39
2118.25    0.987   121.11
2119.25    0.990   120.84
2120.25    0.994   120.56
2121.25    0.997   120.29
2122.25    1.001   120.02
2123.25    1.004   119.75
2124.25    1.007   119.48
2125.25    1.011   119.21
2126.25    1.014   118.95
2127.25    1.017   118.69
2128.25    1.020   118.42
2129.25    1.024   118.17
2130.25    1.027   117.91
2131.25    1.030   117.65
2132.25    1.033   117.40
2133.25    1.036   117.14
2134.25    1.039   116.89
2135.25    1.042   116.64
2136.25    1.045   116.39
2137.25    1.048   116.15
2138.25    1.051   115.90
2139.25    1.053   115.65
2140.25    1.056   115.41
2141.25    1.059   115.17
2142.25    1.062   114.93
2143.25    1.065   114.69
2144.25    1.067   114.45
2145.25    1.070   114.21
2146.25    1.072   113.98
2147.25    1.075   113.74
2148.25    1.078   113.51
2149.25    1.080   113.27
2150.25    1.083   113.04
2151.25    1.085   112.81
2152.25    1.088   112.58
2153.25    1.090   112.35
2154.25    1.092   112.13
2155.25    1.095   111.90
2156.25    1.097   111.67
2157.25    1.100   111.45
2158.25    1.102   111.23
2159.25    1.104   111.00
2160.25    1.106   110.78
2161.25    1.109   110.56
2162.25    1.111   110.34
2163.25    1.113   110.12
2164.25    1.115   109.90
2165.25    1.117   109.69
2166.25    1.119   109.47
2167.25    1.121   109.25
2168.25    1.124   109.04
2169.25    1.126   108.82
2170.25    1.128   108.61
2171.25    1.130   108.40
2172.25    1.132   108.19
2173.25    1.133   107.98
2174.25    1.135   107.77
2175.25    1.137   107.56
2176.25    1.139   107.35
2177.25    1.141   107.14
2178.25    1.143   106.93
2179.25    1.145   106.72
2180.25    1.146   106.52
2181.25    1.148   106.31
2182.25    1.150   106.11
2183.25    1.152   105.90
2184.25    1.153   105.70
2185.25    1.155   105.49
2186.25    1.157   105.29
2187.25    1.158   105.09
2188.25    1.160   104.89
2189.25    1.162   104.69
2190.25    1.163   104.49
2191.25    1.165   104.29
2192.25    1.166   104.09
2193.25    1.168   103.89
2194.25    1.169   103.69
2195.25    1.171   103.49
2196.25    1.172   103.29
2197.25    1.174   103.10
2198.25    1.175   102.90
2199.25    1.177   102.70
2200.25    1.178   102.51
2201.25    1.179   102.31
2202.25    1.181   102.12
2203.25    1.182   101.93
2204.25    1.183   101.73
2205.25    1.185   101.54
2206.25    1.186   101.35
2207.25    1.187   101.15
2208.25    1.189   100.96
2209.25    1.190   100.77
2210.25    1.191   100.58
2211.25    1.192   100.39
2212.25    1.193   100.20
2213.25    1.195   100.01
2214.25    1.196    99.82
2215.25    1.197    99.63
2216.25    1.198    99.44
2217.25    1.199    99.25
2218.25    1.200    99.06
2219.25    1.201    98.87
2220.25    1.202    98.69
2221.25    1.203    98.50
2222.25    1.204    98.31
2223.25    1.205    98.13
2224.25    1.206    97.94
2225.25    1.207    97.75
2226.25    1.208    97.57
2227.25    1.209    97.38
2228.25    1.210    97.20
2229.25    1.211    97.01
2230.25    1.212    96.83
2231.25    1.213    96.64
2232.25    1.214    96.46
2233.25    1.215    96.28
2234.25    1.215    96.09
2235.25    1.216    95.91
2236.25    1.217    95.73
2237.25    1.218    95.54
2238.25    1.219    95.36
2239.25    1.219    95.18
2240.25    1.220    95.00
2241.25    1.221    94.81
2242.25    1.222    94.63
2243.25    1.222    94.45
2244.25    1.223    94.27
2245.25    1.224    94.09
2246.25    1.224    93.91
2247.25    1.225    93.73
2248.25    1.226    93.55
2249.25    1.226    93.37
2250.25    1.227    93.19
2251.25    1.228    93.01
2252.25    1.228    92.83
2253.25    1.229    92.65
2254.25    1.229    92.47
2255.25    1.230    92.29
2256.25    1.230    92.11
2257.25    1.231    91.93
2258.25    1.232    91.75
2259.25    1.232    91.57
2260.25    1.233    91.40
2261.25    1.233    91.22
2262.25    1.233    91.04
2263.25    1.234    90.86
2264.25    1.234    90.68
2265.25    1.235    90.51
2266.25    1.235    90.33
2267.25    1.236    90.15
2268.25    1.236    89.97
2269.25    1.236    89.80
2270.25    1.237    89.62
2271.25    1.237    89.44
2272.25    1.237    89.27
2273.25    1.238    89.09
2274.25    1.238    88.91
2275.25    1.238    88.73
2276.25    1.239    88.56
2277.25    1.239    88.38
2278.25    1.239    88.21
2279.25    1.239    88.03
2280.25    1.240    87.85
2281.25    1.240    87.68
2282.25    1.240    87.50
2283.25    1.240    87.32
2284.25    1.241    87.15
2285.25    1.241    86.97
2286.25    1.241    86.80
2287.25    1.241    86.62
2288.25    1.241    86.44
2289.25    1.241    86.27
2290.25    1.241    86.09
2291.25    1.242    85.92
2292.25    1.242    85.74
2293.25    1.242    85.57
2294.25    1.242    85.39
2295.25    1.242    85.21
2296.25    1.242    85.04
2297.25    1.242    84.86
2298.25    1.242    84.69
2299.25    1.242    84.51
2300.25    1.242    84.34
2301.25    1.242    84.16
2302.25    1.242    83.99
2303.25    1.242    83.81
2304.25    1.242    83.63
2305.25    1.242    83.46
2306.25    1.242    83.28
2307.25    1.242    83.11
2308.25    1.242    82.93
2309.25    1.242    82.76
2310.25    1.242    82.58
2311.25    1.242    82.40
2312.25    1.242    82.23
2313.25    1.241    82.05
2314.25    1.241    81.88
2315.25    1.241    81.70
2316.25    1.241    81.53
2317.25    1.241    81.35
2318.25    1.241    81.17
2319.25    1.241    81.00
2320.25    1.240    80.82
2321.25    1.240    80.65
2322.25    1.240    80.47
2323.25    1.240    80.29
2324.25    1.239    80.12
2325.25    1.239    79.94
2326.25    1.239    79.76
2327.25    1.239    79.59
2328.25    1.238    79.41
2329.25    1.238    79.23
2330.25    1.238    79.06
2331.25    1.238    78.88
2332.25    1.237    78.70
2333.25    1.237    78.53
2334.25    1.237    78.35
2335.25    1.236    78.17
2336.25    1.236    77.99
2337.25    1.236    77.82
2338.25    1.235    77.64
2339.25    1.235    77.46
2340.25    1.234    77.28
2341.25    1.234    77.11
2342.25    1.234    76.93
2343.25    1.233    76.75
2344.25    1.233    76.57
2345.25    1.232    76.39
2346.25    1.232    76.22
2347.25    1.231    76.04
2348.25    1.231    75.86
2349.25    1.231    75.68
2350.25    1.230    75.50
2351.25    1.230    75.32
2352.25    1.229    75.14
2353.25    1.229    74.96
2354.25    1.228    74.78
2355.25    1.227    74.60
2356.25    1.227    74.42
2357.25    1.226    74.24
2358.25    1.226    74.06
2359.25    1.225    73.88
2360.25    1.225    73.70
2361.25    1.224    73.52
2362.25    1.223    73.34






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 17:26:28



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