Double Star Calculator - Orbit

Orbital Elements for BU368AB
WDS: BU368AB WDS ID/Discoverer
P: 345.280 Orbital period (years)
a: 0.576 Semi-major axis (arcseconds)
i: 87.6 Inclination (degrees)
Ω: 270.1 Longitude of ascending node (degrees)
T: 1954.640 Epoch of periastron passage (year)
e: 0.665 Eccentricity
ω: 304.2 Longitude of periastron (degrees)
Start-Year: 1852.3600000000001 Year
End-Year: 2197.64 Year
Epoch: 2026.5 Besselian Epoch
Further data from the WDS Sixth Catalog of Orbits for BU368AB
Position: 210726.28-081405.6 Epoch-2000 right ascension and declination
WDS-ID: 21074-0814 WDS designation
Discoverer Code: BU368AB Discover designation and components
ADS number: 14648 Aitken Double Star catalog
HD number: 201038 HD catalog number
Hipparcos number: 104272 Hipparcos catalog number
V1: 7.56 Magnitude of the primary
V2: 8.24 Magnitude of the secondary
Equinox: 2000 Equinox
Date: 2014 Date of last observation
Orbit grade: 3 Orbit grade, ranging from :
1 = Definitive
2 = Good
3 = Reliable
4 = Preliminary
5 = Indeterminate
Flags: n Flags
Ephemerides: Ephemerides
Code: Tok2015c Reference

Double Star Orbit for BU368AB



WDS 6th Orbit including measures of BU368AB

-- 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 BU368AB
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.030   352.64
--------------------------
1852.36    0.696    88.47
1853.36    0.697    88.49
1854.36    0.697    88.51
1855.36    0.697    88.53
1856.36    0.697    88.56
1857.36    0.696    88.58
1858.36    0.696    88.60
1859.36    0.696    88.62
1860.36    0.695    88.64
1861.36    0.695    88.67
1862.36    0.694    88.69
1863.36    0.694    88.71
1864.36    0.693    88.73
1865.36    0.692    88.76
1866.36    0.691    88.78
1867.36    0.690    88.80
1868.36    0.689    88.83
1869.36    0.688    88.85
1870.36    0.687    88.87
1871.36    0.685    88.89
1872.36    0.684    88.92
1873.36    0.682    88.94
1874.36    0.681    88.96
1875.36    0.679    88.99
1876.36    0.677    89.01
1877.36    0.675    89.03
1878.36    0.673    89.06
1879.36    0.671    89.08
1880.36    0.668    89.11
1881.36    0.666    89.13
1882.36    0.663    89.15
1883.36    0.661    89.18
1884.36    0.658    89.20
1885.36    0.655    89.23
1886.36    0.652    89.25
1887.36    0.649    89.28
1888.36    0.646    89.31
1889.36    0.642    89.33
1890.36    0.639    89.36
1891.36    0.635    89.39
1892.36    0.631    89.41
1893.36    0.628    89.44
1894.36    0.623    89.47
1895.36    0.619    89.50
1896.36    0.615    89.52
1897.36    0.610    89.55
1898.36    0.606    89.58
1899.36    0.601    89.61
1900.36    0.596    89.64
1901.36    0.591    89.67
1902.36    0.585    89.70
1903.36    0.580    89.74
1904.36    0.574    89.77
1905.36    0.568    89.80
1906.36    0.562    89.84
1907.36    0.556    89.87
1908.36    0.549    89.91
1909.36    0.543    89.94
1910.36    0.536    89.98
1911.36    0.529    90.02
1912.36    0.521    90.06
1913.36    0.514    90.10
1914.36    0.506    90.14
1915.36    0.498    90.18
1916.36    0.489    90.23
1917.36    0.481    90.27
1918.36    0.472    90.32
1919.36    0.463    90.37
1920.36    0.453    90.42
1921.36    0.444    90.47
1922.36    0.434    90.53
1923.36    0.423    90.59
1924.36    0.413    90.65
1925.36    0.402    90.72
1926.36    0.390    90.79
1927.36    0.378    90.86
1928.36    0.366    90.94
1929.36    0.354    91.02
1930.36    0.341    91.11
1931.36    0.327    91.21
1932.36    0.314    91.31
1933.36    0.299    91.43
1934.36    0.285    91.55
1935.36    0.269    91.70
1936.36    0.254    91.85
1937.36    0.237    92.03
1938.36    0.221    92.24
1939.36    0.203    92.48
1940.36    0.185    92.77
1941.36    0.167    93.12
1942.36    0.148    93.55
1943.36    0.129    94.12
1944.36    0.109    94.89
1945.36    0.088    96.02
1946.36    0.068    97.83
1947.36    0.046   101.28
1948.36    0.026   110.40
1949.36    0.009   165.26
1950.36    0.021   246.57
1951.36    0.042   258.86
1952.36    0.063   262.98
1953.36    0.083   265.05
1954.36    0.103   266.30
1955.36    0.122   267.16
1956.36    0.140   267.79
1957.36    0.157   268.28
1958.36    0.173   268.68
1959.36    0.187   269.01
1960.36    0.200   269.30
1961.36    0.211   269.56
1962.36    0.221   269.79
1963.36    0.230   270.00
1964.36    0.238   270.20
1965.36    0.244   270.39
1966.36    0.250   270.57
1967.36    0.254   270.74
1968.36    0.258   270.90
1969.36    0.261   271.06
1970.36    0.263   271.22
1971.36    0.265   271.37
1972.36    0.266   271.53
1973.36    0.266   271.68
1974.36    0.266   271.83
1975.36    0.265   271.99
1976.36    0.264   272.14
1977.36    0.262   272.30
1978.36    0.260   272.46
1979.36    0.258   272.62
1980.36    0.255   272.78
1981.36    0.253   272.95
1982.36    0.250   273.12
1983.36    0.246   273.30
1984.36    0.243   273.48
1985.36    0.239   273.66
1986.36    0.235   273.86
1987.36    0.231   274.06
1988.36    0.226   274.26
1989.36    0.222   274.48
1990.36    0.217   274.70
1991.36    0.213   274.94
1992.36    0.208   275.18
1993.36    0.203   275.44
1994.36    0.198   275.71
1995.36    0.192   276.00
1996.36    0.187   276.30
1997.36    0.182   276.61
1998.36    0.176   276.95
1999.36    0.171   277.31
2000.36    0.165   277.69
2001.36    0.160   278.10
2002.36    0.154   278.54
2003.36    0.148   279.01
2004.36    0.143   279.52
2005.36    0.137   280.08
2006.36    0.131   280.68
2007.36    0.125   281.34
2008.36    0.120   282.06
2009.36    0.114   282.85
2010.36    0.108   283.74
2011.36    0.102   284.72
2012.36    0.096   285.83
2013.36    0.090   287.07
2014.36    0.084   288.49
2015.36    0.079   290.12
2016.36    0.073   292.01
2017.36    0.067   294.21
2018.36    0.062   296.81
2019.36    0.056   299.92
2020.36    0.051   303.68
2021.36    0.046   308.26
2022.36    0.042   313.90
2023.36    0.037   320.85
2024.36    0.034   329.36
2025.36    0.032   339.49
2026.36    0.030   350.96
2027.36    0.030     3.03
2028.36    0.031    14.68
2029.36    0.034    25.09
2030.36    0.037    33.90
2031.36    0.041    41.12
2032.36    0.045    46.98
2033.36    0.050    51.74
2034.36    0.055    55.63
2035.36    0.061    58.84
2036.36    0.066    61.53
2037.36    0.072    63.80
2038.36    0.078    65.73
2039.36    0.083    67.40
2040.36    0.089    68.85
2041.36    0.095    70.12
2042.36    0.101    71.25
2043.36    0.107    72.24
2044.36    0.113    73.14
2045.36    0.119    73.94
2046.36    0.125    74.67
2047.36    0.131    75.33
2048.36    0.137    75.94
2049.36    0.143    76.49
2050.36    0.149    77.00
2051.36    0.155    77.47
2052.36    0.161    77.90
2053.36    0.167    78.31
2054.36    0.173    78.68
2055.36    0.179    79.03
2056.36    0.184    79.36
2057.36    0.190    79.67
2058.36    0.196    79.96
2059.36    0.202    80.23
2060.36    0.208    80.49
2061.36    0.214    80.73
2062.36    0.220    80.96
2063.36    0.225    81.18
2064.36    0.231    81.39
2065.36    0.237    81.59
2066.36    0.243    81.78
2067.36    0.248    81.96
2068.36    0.254    82.13
2069.36    0.260    82.29
2070.36    0.265    82.45
2071.36    0.271    82.60
2072.36    0.277    82.74
2073.36    0.282    82.88
2074.36    0.288    83.02
2075.36    0.293    83.14
2076.36    0.299    83.27
2077.36    0.304    83.39
2078.36    0.310    83.50
2079.36    0.315    83.61
2080.36    0.320    83.72
2081.36    0.326    83.82
2082.36    0.331    83.92
2083.36    0.337    84.02
2084.36    0.342    84.12
2085.36    0.347    84.21
2086.36    0.352    84.29
2087.36    0.358    84.38
2088.36    0.363    84.46
2089.36    0.368    84.55
2090.36    0.373    84.62
2091.36    0.378    84.70
2092.36    0.383    84.78
2093.36    0.388    84.85
2094.36    0.393    84.92
2095.36    0.398    84.99
2096.36    0.403    85.06
2097.36    0.408    85.12
2098.36    0.413    85.19
2099.36    0.418    85.25
2100.36    0.423    85.31
2101.36    0.428    85.37
2102.36    0.432    85.43
2103.36    0.437    85.49
2104.36    0.442    85.54
2105.36    0.446    85.60
2106.36    0.451    85.65
2107.36    0.456    85.70
2108.36    0.460    85.75
2109.36    0.465    85.80
2110.36    0.469    85.85
2111.36    0.474    85.90
2112.36    0.478    85.95
2113.36    0.483    86.00
2114.36    0.487    86.04
2115.36    0.491    86.09
2116.36    0.496    86.13
2117.36    0.500    86.18
2118.36    0.504    86.22
2119.36    0.508    86.26
2120.36    0.512    86.30
2121.36    0.516    86.34
2122.36    0.521    86.38
2123.36    0.525    86.42
2124.36    0.529    86.46
2125.36    0.533    86.50
2126.36    0.537    86.54
2127.36    0.540    86.58
2128.36    0.544    86.61
2129.36    0.548    86.65
2130.36    0.552    86.69
2131.36    0.556    86.72
2132.36    0.559    86.76
2133.36    0.563    86.79
2134.36    0.567    86.82
2135.36    0.570    86.86
2136.36    0.574    86.89
2137.36    0.577    86.92
2138.36    0.581    86.96
2139.36    0.584    86.99
2140.36    0.587    87.02
2141.36    0.591    87.05
2142.36    0.594    87.08
2143.36    0.597    87.11
2144.36    0.600    87.14
2145.36    0.604    87.17
2146.36    0.607    87.20
2147.36    0.610    87.23
2148.36    0.613    87.26
2149.36    0.616    87.29
2150.36    0.619    87.32
2151.36    0.622    87.34
2152.36    0.624    87.37
2153.36    0.627    87.40
2154.36    0.630    87.43
2155.36    0.633    87.45
2156.36    0.635    87.48
2157.36    0.638    87.51
2158.36    0.640    87.53
2159.36    0.643    87.56
2160.36    0.645    87.59
2161.36    0.648    87.61
2162.36    0.650    87.64
2163.36    0.652    87.66
2164.36    0.655    87.69
2165.36    0.657    87.71
2166.36    0.659    87.74
2167.36    0.661    87.76
2168.36    0.663    87.79
2169.36    0.665    87.81
2170.36    0.667    87.84
2171.36    0.669    87.86
2172.36    0.671    87.89
2173.36    0.672    87.91
2174.36    0.674    87.93
2175.36    0.676    87.96
2176.36    0.677    87.98
2177.36    0.679    88.01
2178.36    0.680    88.03
2179.36    0.682    88.05
2180.36    0.683    88.08
2181.36    0.684    88.10
2182.36    0.686    88.12
2183.36    0.687    88.14
2184.36    0.688    88.17
2185.36    0.689    88.19
2186.36    0.690    88.21
2187.36    0.691    88.24
2188.36    0.692    88.26
2189.36    0.693    88.28
2190.36    0.693    88.30
2191.36    0.694    88.33
2192.36    0.694    88.35
2193.36    0.695    88.37
2194.36    0.695    88.39
2195.36    0.696    88.42
2196.36    0.696    88.44
2197.36    0.696    88.46






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 18:22:52



www.stella-vega.de