Content-Type: text/html; charset=UTF-8 Double Star Calculator - Orbital Elements

Double Star Calculator - Orbit

- Revision: $Rev: 1216 $
- Report created: 2025-07-11 19:21:38

Orbital Elements for BU766AB
WDS: BU766AB WDS ID/Discoverer
P: 464.660 Orbital period (years)
a: 0.836 Semi-major axis (arcseconds)
i: 111.8 Inclination (degrees)
Ω: 113.8 Longitude of ascending node (degrees)
T: 2042.140 Epoch of periastron passage (year)
e: 0.201 Eccentricity
ω: 315.3 Longitude of periastron (degrees)
Start-Year: 1793.0 Year
End-Year: 2257.0 Year
Epoch: 2025.0 Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for BU766AB
Position: 212424.80-410024.1 Epoch-2000 right ascension and declination
WDS-ID: 21244-4100 WDS designation
Discoverer Code: BU766AB Discover designation and components
ADS number: . Aitken Double Star catalog
HD number: 203585 HD catalog number
Hipparcos number: 105696 Hipparcos catalog number
V1: 6.24 Magnitude of the primary
V2: 6.88 Magnitude of the secondary
Equinox: 2000 Equinox
Date: 1999 Date of last observation
Orbit grade: 5 Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags: n Flags

Double Star Orbit for BU766AB



WDS 6th Orbit including measures of BU766AB

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


Ephemeris of BU766AB
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.365    152.3
-------------------------
1793.0     0.666    320.5
1794.0     0.671    320.1
1795.0     0.677    319.6
1796.0     0.683    319.2
1797.0     0.689    318.8
1798.0     0.695    318.4
1799.0     0.701    318.0
1800.0     0.706    317.6
1801.0     0.712    317.2
1802.0     0.718    316.8
1803.0     0.723    316.4
1804.0     0.729    316.0
1805.0     0.734    315.7
1806.0     0.740    315.3
1807.0     0.745    315.0
1808.0     0.751    314.6
1809.0     0.756    314.3
1810.0     0.761    313.9
1811.0     0.767    313.6
1812.0     0.772    313.2
1813.0     0.777    312.9
1814.0     0.782    312.6
1815.0     0.787    312.3
1816.0     0.792    312.0
1817.0     0.797    311.6
1818.0     0.801    311.3
1819.0     0.806    311.0
1820.0     0.811    310.7
1821.0     0.815    310.4
1822.0     0.820    310.1
1823.0     0.825    309.8
1824.0     0.829    309.6
1825.0     0.833    309.3
1826.0     0.838    309.0
1827.0     0.842    308.7
1828.0     0.846    308.4
1829.0     0.850    308.2
1830.0     0.854    307.9
1831.0     0.858    307.6
1832.0     0.862    307.4
1833.0     0.866    307.1
1834.0     0.869    306.8
1835.0     0.873    306.6
1836.0     0.877    306.3
1837.0     0.880    306.1
1838.0     0.883    305.8
1839.0     0.887    305.5
1840.0     0.890    305.3
1841.0     0.893    305.1
1842.0     0.896    304.8
1843.0     0.899    304.6
1844.0     0.902    304.3
1845.0     0.905    304.1
1846.0     0.908    303.8
1847.0     0.910    303.6
1848.0     0.913    303.4
1849.0     0.915    303.1
1850.0     0.918    302.9
1851.0     0.920    302.7
1852.0     0.922    302.4
1853.0     0.925    302.2
1854.0     0.927    302.0
1855.0     0.929    301.7
1856.0     0.931    301.5
1857.0     0.932    301.3
1858.0     0.934    301.1
1859.0     0.936    300.8
1860.0     0.937    300.6
1861.0     0.939    300.4
1862.0     0.940    300.2
1863.0     0.941    299.9
1864.0     0.942    299.7
1865.0     0.943    299.5
1866.0     0.944    299.3
1867.0     0.945    299.0
1868.0     0.946    298.8
1869.0     0.947    298.6
1870.0     0.947    298.4
1871.0     0.948    298.2
1872.0     0.948    298.0
1873.0     0.948    297.7
1874.0     0.948    297.5
1875.0     0.949    297.3
1876.0     0.949    297.1
1877.0     0.948    296.9
1878.0     0.948    296.6
1879.0     0.948    296.4
1880.0     0.947    296.2
1881.0     0.947    296.0
1882.0     0.946    295.8
1883.0     0.945    295.5
1884.0     0.945    295.3
1885.0     0.944    295.1
1886.0     0.943    294.9
1887.0     0.941    294.7
1888.0     0.940    294.4
1889.0     0.939    294.2
1890.0     0.937    294.0
1891.0     0.936    293.8
1892.0     0.934    293.5
1893.0     0.932    293.3
1894.0     0.930    293.1
1895.0     0.928    292.9
1896.0     0.926    292.6
1897.0     0.924    292.4
1898.0     0.921    292.2
1899.0     0.919    291.9
1900.0     0.916    291.7
1901.0     0.914    291.5
1902.0     0.911    291.2
1903.0     0.908    291.0
1904.0     0.905    290.7
1905.0     0.902    290.5
1906.0     0.899    290.3
1907.0     0.895    290.0
1908.0     0.892    289.8
1909.0     0.888    289.5
1910.0     0.885    289.3
1911.0     0.881    289.0
1912.0     0.877    288.8
1913.0     0.873    288.5
1914.0     0.869    288.2
1915.0     0.864    288.0
1916.0     0.860    287.7
1917.0     0.856    287.4
1918.0     0.851    287.2
1919.0     0.846    286.9
1920.0     0.841    286.6
1921.0     0.837    286.3
1922.0     0.832    286.1
1923.0     0.826    285.8
1924.0     0.821    285.5
1925.0     0.816    285.2
1926.0     0.810    284.9
1927.0     0.805    284.6
1928.0     0.799    284.3
1929.0     0.793    284.0
1930.0     0.787    283.7
1931.0     0.781    283.3
1932.0     0.775    283.0
1933.0     0.769    282.7
1934.0     0.763    282.4
1935.0     0.756    282.0
1936.0     0.750    281.7
1937.0     0.743    281.3
1938.0     0.736    280.9
1939.0     0.729    280.6
1940.0     0.722    280.2
1941.0     0.715    279.8
1942.0     0.708    279.4
1943.0     0.701    279.0
1944.0     0.694    278.6
1945.0     0.686    278.2
1946.0     0.679    277.8
1947.0     0.671    277.4
1948.0     0.663    276.9
1949.0     0.655    276.5
1950.0     0.648    276.0
1951.0     0.640    275.5
1952.0     0.632    275.0
1953.0     0.623    274.5
1954.0     0.615    274.0
1955.0     0.607    273.5
1956.0     0.599    273.0
1957.0     0.590    272.4
1958.0     0.582    271.8
1959.0     0.573    271.2
1960.0     0.564    270.6
1961.0     0.556    270.0
1962.0     0.547    269.4
1963.0     0.538    268.7
1964.0     0.529    268.0
1965.0     0.521    267.3
1966.0     0.512    266.5
1967.0     0.503    265.8
1968.0     0.494    265.0
1969.0     0.485    264.2
1970.0     0.476    263.3
1971.0     0.467    262.4
1972.0     0.458    261.5
1973.0     0.449    260.5
1974.0     0.440    259.5
1975.0     0.431    258.5
1976.0     0.422    257.4
1977.0     0.414    256.3
1978.0     0.405    255.1
1979.0     0.396    253.9
1980.0     0.388    252.6
1981.0     0.379    251.3
1982.0     0.371    249.9
1983.0     0.363    248.4
1984.0     0.354    246.9
1985.0     0.347    245.3
1986.0     0.339    243.6
1987.0     0.331    241.8
1988.0     0.324    240.0
1989.0     0.317    238.1
1990.0     0.310    236.1
1991.0     0.304    234.0
1992.0     0.298    231.8
1993.0     0.292    229.6
1994.0     0.287    227.2
1995.0     0.282    224.8
1996.0     0.278    222.3
1997.0     0.274    219.7
1998.0     0.270    217.0
1999.0     0.267    214.3
2000.0     0.265    211.5
2001.0     0.263    208.6
2002.0     0.262    205.8
2003.0     0.261    202.9
2004.0     0.261    200.0
2005.0     0.261    197.1
2006.0     0.262    194.2
2007.0     0.264    191.4
2008.0     0.266    188.6
2009.0     0.269    185.8
2010.0     0.272    183.1
2011.0     0.276    180.5
2012.0     0.280    177.9
2013.0     0.284    175.5
2014.0     0.290    173.1
2015.0     0.295    170.8
2016.0     0.301    168.5
2017.0     0.307    166.4
2018.0     0.313    164.4
2019.0     0.320    162.4
2020.0     0.327    160.5
2021.0     0.334    158.7
2022.0     0.342    157.0
2023.0     0.349    155.3
2024.0     0.357    153.8
2025.0     0.365    152.3
2026.0     0.373    150.8
2027.0     0.381    149.4
2028.0     0.389    148.1
2029.0     0.398    146.8
2030.0     0.406    145.6
2031.0     0.414    144.4
2032.0     0.423    143.3
2033.0     0.431    142.2
2034.0     0.439    141.2
2035.0     0.448    140.2
2036.0     0.456    139.2
2037.0     0.464    138.3
2038.0     0.472    137.4
2039.0     0.481    136.5
2040.0     0.489    135.7
2041.0     0.497    134.9
2042.0     0.505    134.1
2043.0     0.513    133.3
2044.0     0.520    132.6
2045.0     0.528    131.9
2046.0     0.536    131.2
2047.0     0.543    130.5
2048.0     0.550    129.8
2049.0     0.557    129.2
2050.0     0.565    128.6
2051.0     0.571    128.0
2052.0     0.578    127.4
2053.0     0.585    126.8
2054.0     0.591    126.2
2055.0     0.598    125.7
2056.0     0.604    125.1
2057.0     0.610    124.6
2058.0     0.616    124.0
2059.0     0.621    123.5
2060.0     0.627    123.0
2061.0     0.632    122.5
2062.0     0.638    122.0
2063.0     0.643    121.6
2064.0     0.647    121.1
2065.0     0.652    120.6
2066.0     0.657    120.2
2067.0     0.661    119.7
2068.0     0.665    119.3
2069.0     0.669    118.8
2070.0     0.673    118.4
2071.0     0.676    117.9
2072.0     0.680    117.5
2073.0     0.683    117.1
2074.0     0.686    116.7
2075.0     0.689    116.3
2076.0     0.691    115.8
2077.0     0.694    115.4
2078.0     0.696    115.0
2079.0     0.698    114.6
2080.0     0.700    114.2
2081.0     0.702    113.8
2082.0     0.703    113.4
2083.0     0.705    113.0
2084.0     0.706    112.6
2085.0     0.707    112.2
2086.0     0.708    111.8
2087.0     0.708    111.4
2088.0     0.709    111.0
2089.0     0.709    110.7
2090.0     0.709    110.3
2091.0     0.709    109.9
2092.0     0.709    109.5
2093.0     0.709    109.1
2094.0     0.708    108.7
2095.0     0.707    108.3
2096.0     0.707    107.9
2097.0     0.705    107.5
2098.0     0.704    107.1
2099.0     0.703    106.7
2100.0     0.701    106.3
2101.0     0.700    105.9
2102.0     0.698    105.5
2103.0     0.696    105.1
2104.0     0.694    104.7
2105.0     0.692    104.3
2106.0     0.689    103.9
2107.0     0.687    103.5
2108.0     0.684    103.0
2109.0     0.681    102.6
2110.0     0.678    102.2
2111.0     0.675    101.8
2112.0     0.672    101.3
2113.0     0.669    100.9
2114.0     0.665    100.5
2115.0     0.662    100.0
2116.0     0.658     99.6
2117.0     0.654     99.1
2118.0     0.650     98.6
2119.0     0.647     98.2
2120.0     0.642     97.7
2121.0     0.638     97.2
2122.0     0.634     96.7
2123.0     0.630     96.2
2124.0     0.625     95.7
2125.0     0.621     95.2
2126.0     0.616     94.7
2127.0     0.611     94.2
2128.0     0.606     93.6
2129.0     0.602     93.1
2130.0     0.597     92.6
2131.0     0.592     92.0
2132.0     0.587     91.4
2133.0     0.582     90.9
2134.0     0.576     90.3
2135.0     0.571     89.7
2136.0     0.566     89.1
2137.0     0.561     88.4
2138.0     0.555     87.8
2139.0     0.550     87.2
2140.0     0.544     86.5
2141.0     0.539     85.8
2142.0     0.533     85.1
2143.0     0.528     84.4
2144.0     0.522     83.7
2145.0     0.517     83.0
2146.0     0.511     82.3
2147.0     0.506     81.5
2148.0     0.500     80.7
2149.0     0.495     79.9
2150.0     0.489     79.1
2151.0     0.484     78.3
2152.0     0.478     77.4
2153.0     0.473     76.6
2154.0     0.467     75.7
2155.0     0.462     74.7
2156.0     0.457     73.8
2157.0     0.451     72.9
2158.0     0.446     71.9
2159.0     0.441     70.9
2160.0     0.436     69.9
2161.0     0.431     68.8
2162.0     0.426     67.7
2163.0     0.421     66.6
2164.0     0.416     65.5
2165.0     0.411     64.3
2166.0     0.407     63.2
2167.0     0.402     62.0
2168.0     0.398     60.7
2169.0     0.394     59.5
2170.0     0.390     58.2
2171.0     0.386     56.9
2172.0     0.382     55.5
2173.0     0.378     54.2
2174.0     0.375     52.8
2175.0     0.371     51.4
2176.0     0.368     49.9
2177.0     0.365     48.5
2178.0     0.363     47.0
2179.0     0.360     45.5
2180.0     0.358     43.9
2181.0     0.355     42.4
2182.0     0.354     40.8
2183.0     0.352     39.2
2184.0     0.350     37.6
2185.0     0.349     36.0
2186.0     0.348     34.4
2187.0     0.347     32.8
2188.0     0.347     31.1
2189.0     0.346     29.5
2190.0     0.346     27.9
2191.0     0.346     26.2
2192.0     0.347     24.6
2193.0     0.347     22.9
2194.0     0.348     21.3
2195.0     0.349     19.7
2196.0     0.351     18.1
2197.0     0.352     16.5
2198.0     0.354     14.9
2199.0     0.356     13.3
2200.0     0.358     11.8
2201.0     0.361     10.3
2202.0     0.363      8.8
2203.0     0.366      7.3
2204.0     0.369      5.8
2205.0     0.372      4.4
2206.0     0.376      3.0
2207.0     0.379      1.6
2208.0     0.383      0.2
2209.0     0.387    358.9
2210.0     0.391    357.6
2211.0     0.395    356.3
2212.0     0.400    355.1
2213.0     0.404    353.9
2214.0     0.409    352.7
2215.0     0.413    351.5
2216.0     0.418    350.4
2217.0     0.423    349.3
2218.0     0.428    348.2
2219.0     0.434    347.1
2220.0     0.439    346.1
2221.0     0.444    345.1
2222.0     0.450    344.1
2223.0     0.455    343.1
2224.0     0.461    342.2
2225.0     0.467    341.3
2226.0     0.472    340.4
2227.0     0.478    339.5
2228.0     0.484    338.7
2229.0     0.490    337.8
2230.0     0.496    337.0
2231.0     0.502    336.2
2232.0     0.508    335.4
2233.0     0.514    334.7
2234.0     0.520    334.0
2235.0     0.526    333.2
2236.0     0.532    332.5
2237.0     0.538    331.8
2238.0     0.545    331.2
2239.0     0.551    330.5
2240.0     0.557    329.9
2241.0     0.563    329.2
2242.0     0.569    328.6
2243.0     0.576    328.0
2244.0     0.582    327.4
2245.0     0.588    326.9
2246.0     0.594    326.3
2247.0     0.601    325.8
2248.0     0.607    325.2
2249.0     0.613    324.7
2250.0     0.619    324.2
2251.0     0.625    323.7
2252.0     0.631    323.2
2253.0     0.637    322.7
2254.0     0.644    322.2
2255.0     0.650    321.7
2256.0     0.656    321.3






Disclaimer
This result is provided without warranty. For all terms, see the Full Disclaimer. Copyright (C) 2025. The Double Star Calculator and the results generated are licensed under CC BY-NC-SA 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.


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