Double Star Calculator - Orbit

Orbital Elements for BU1191AB
WDS: BU1191AB WDS ID/Discoverer
P: 287.370 Orbital period (years)
a: 3.61923 Semi-major axis (arcseconds)
i: 82.627 Inclination (degrees)
Ω: 139.577 Longitude of ascending node (degrees)
T: 2024.883 Epoch of periastron passage (year)
e: 0.57487 Eccentricity
ω: 252.919 Longitude of periastron (degrees)
Start-Year: 1881.315 Year
End-Year: 2168.685 Year
Epoch: 2026.5 Besselian Epoch
Further data from the WDS Sixth Catalog of Orbits for BU1191AB
Position: 062610.24+184524.8 Epoch-2000 right ascension and declination
WDS-ID: 06262+1845 WDS designation
Discoverer Code: BU1191AB Discover designation and components
ADS number: 5054 Aitken Double Star catalog
HD number: 45088 HD catalog number
Hipparcos number: 30630 Hipparcos catalog number
V1: 6.7 Magnitude of the primary
V2: 11.5 Magnitude of the secondary
Equinox: Equinox
Date: 1996 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: Izm2019 Reference

Double Star Orbit for BU1191AB



WDS 6th Orbit including measures of BU1191AB

-- 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 BU1191AB
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.290     2.19
--------------------------
1881.32    1.810   162.31
1882.32    1.774   162.84
1883.32    1.739   163.40
1884.32    1.703   163.98
1885.32    1.667   164.59
1886.32    1.631   165.22
1887.32    1.595   165.88
1888.32    1.560   166.58
1889.32    1.524   167.30
1890.32    1.488   168.06
1891.32    1.453   168.86
1892.32    1.417   169.70
1893.32    1.382   170.58
1894.32    1.347   171.50
1895.32    1.312   172.48
1896.32    1.277   173.51
1897.32    1.242   174.59
1898.32    1.208   175.74
1899.32    1.174   176.96
1900.32    1.141   178.24
1901.32    1.108   179.60
1902.32    1.076   181.05
1903.32    1.044   182.58
1904.32    1.013   184.21
1905.32    0.982   185.95
1906.32    0.953   187.79
1907.32    0.924   189.74
1908.32    0.897   191.82
1909.32    0.870   194.03
1910.32    0.845   196.37
1911.32    0.821   198.86
1912.32    0.799   201.49
1913.32    0.778   204.26
1914.32    0.759   207.18
1915.32    0.742   210.24
1916.32    0.728   213.43
1917.32    0.715   216.74
1918.32    0.705   220.16
1919.32    0.697   223.67
1920.32    0.692   227.24
1921.32    0.690   230.85
1922.32    0.690   234.47
1923.32    0.693   238.08
1924.32    0.698   241.65
1925.32    0.706   245.14
1926.32    0.717   248.55
1927.32    0.729   251.85
1928.32    0.744   255.03
1929.32    0.761   258.07
1930.32    0.780   260.97
1931.32    0.801   263.73
1932.32    0.824   266.34
1933.32    0.848   268.81
1934.32    0.873   271.14
1935.32    0.899   273.33
1936.32    0.927   275.40
1937.32    0.955   277.35
1938.32    0.985   279.18
1939.32    1.015   280.90
1940.32    1.046   282.53
1941.32    1.077   284.06
1942.32    1.109   285.50
1943.32    1.142   286.86
1944.32    1.174   288.14
1945.32    1.208   289.36
1946.32    1.241   290.51
1947.32    1.275   291.60
1948.32    1.308   292.63
1949.32    1.342   293.61
1950.32    1.376   294.55
1951.32    1.410   295.43
1952.32    1.445   296.28
1953.32    1.479   297.09
1954.32    1.513   297.86
1955.32    1.547   298.59
1956.32    1.580   299.30
1957.32    1.614   299.97
1958.32    1.647   300.62
1959.32    1.681   301.24
1960.32    1.714   301.84
1961.32    1.746   302.42
1962.32    1.779   302.97
1963.32    1.811   303.51
1964.32    1.842   304.02
1965.32    1.874   304.52
1966.32    1.904   305.01
1967.32    1.935   305.47
1968.32    1.965   305.93
1969.32    1.994   306.37
1970.32    2.023   306.79
1971.32    2.051   307.21
1972.32    2.078   307.61
1973.32    2.105   308.01
1974.32    2.131   308.39
1975.32    2.156   308.77
1976.32    2.181   309.13
1977.32    2.205   309.49
1978.32    2.228   309.84
1979.32    2.249   310.19
1980.32    2.270   310.52
1981.32    2.290   310.86
1982.32    2.309   311.18
1983.32    2.326   311.50
1984.32    2.343   311.82
1985.32    2.358   312.13
1986.32    2.371   312.44
1987.32    2.383   312.74
1988.32    2.394   313.04
1989.32    2.403   313.34
1990.32    2.411   313.64
1991.32    2.416   313.94
1992.32    2.420   314.23
1993.32    2.421   314.53
1994.32    2.421   314.82
1995.32    2.418   315.11
1996.32    2.413   315.41
1997.32    2.406   315.71
1998.32    2.395   316.01
1999.32    2.382   316.31
2000.32    2.366   316.61
2001.32    2.347   316.92
2002.32    2.324   317.24
2003.32    2.298   317.56
2004.32    2.268   317.89
2005.32    2.234   318.23
2006.32    2.196   318.58
2007.32    2.153   318.95
2008.32    2.106   319.33
2009.32    2.053   319.73
2010.32    1.996   320.15
2011.32    1.932   320.59
2012.32    1.863   321.07
2013.32    1.788   321.59
2014.32    1.707   322.15
2015.32    1.619   322.77
2016.32    1.525   323.47
2017.32    1.425   324.26
2018.32    1.318   325.18
2019.32    1.204   326.27
2020.32    1.085   327.58
2021.32    0.961   329.23
2022.32    0.832   331.39
2023.32    0.699   334.35
2024.32    0.565   338.71
2025.32    0.433   345.75
2026.32    0.311   358.65
2027.32    0.219    24.82
2028.32    0.210    65.63
2029.32    0.290    95.27
2030.32    0.409   109.94
2031.32    0.541   117.74
2032.32    0.676   122.46
2033.32    0.811   125.60
2034.32    0.944   127.85
2035.32    1.074   129.55
2036.32    1.201   130.88
2037.32    1.324   131.97
2038.32    1.443   132.87
2039.32    1.557   133.63
2040.32    1.668   134.30
2041.32    1.774   134.88
2042.32    1.876   135.40
2043.32    1.974   135.86
2044.32    2.068   136.28
2045.32    2.159   136.67
2046.32    2.245   137.03
2047.32    2.327   137.36
2048.32    2.406   137.66
2049.32    2.482   137.95
2050.32    2.554   138.22
2051.32    2.622   138.48
2052.32    2.688   138.72
2053.32    2.751   138.96
2054.32    2.810   139.18
2055.32    2.867   139.39
2056.32    2.921   139.60
2057.32    2.973   139.80
2058.32    3.022   139.99
2059.32    3.069   140.18
2060.32    3.113   140.36
2061.32    3.155   140.53
2062.32    3.195   140.70
2063.32    3.232   140.87
2064.32    3.268   141.03
2065.32    3.301   141.19
2066.32    3.333   141.35
2067.32    3.363   141.50
2068.32    3.391   141.65
2069.32    3.417   141.80
2070.32    3.442   141.95
2071.32    3.465   142.09
2072.32    3.487   142.24
2073.32    3.506   142.38
2074.32    3.525   142.52
2075.32    3.542   142.65
2076.32    3.557   142.79
2077.32    3.572   142.93
2078.32    3.584   143.06
2079.32    3.596   143.19
2080.32    3.606   143.33
2081.32    3.615   143.46
2082.32    3.623   143.59
2083.32    3.630   143.72
2084.32    3.636   143.85
2085.32    3.640   143.98
2086.32    3.644   144.11
2087.32    3.646   144.24
2088.32    3.648   144.37
2089.32    3.648   144.50
2090.32    3.648   144.63
2091.32    3.646   144.76
2092.32    3.644   144.89
2093.32    3.640   145.02
2094.32    3.636   145.15
2095.32    3.631   145.28
2096.32    3.625   145.41
2097.32    3.619   145.54
2098.32    3.611   145.67
2099.32    3.603   145.81
2100.32    3.594   145.94
2101.32    3.584   146.07
2102.32    3.573   146.21
2103.32    3.562   146.34
2104.32    3.550   146.48
2105.32    3.538   146.62
2106.32    3.524   146.76
2107.32    3.510   146.90
2108.32    3.496   147.04
2109.32    3.480   147.18
2110.32    3.465   147.32
2111.32    3.448   147.46
2112.32    3.431   147.61
2113.32    3.413   147.76
2114.32    3.395   147.91
2115.32    3.376   148.06
2116.32    3.357   148.21
2117.32    3.337   148.36
2118.32    3.317   148.52
2119.32    3.296   148.67
2120.32    3.275   148.83
2121.32    3.253   149.00
2122.32    3.230   149.16
2123.32    3.207   149.33
2124.32    3.184   149.50
2125.32    3.160   149.67
2126.32    3.136   149.84
2127.32    3.112   150.02
2128.32    3.086   150.20
2129.32    3.061   150.38
2130.32    3.035   150.56
2131.32    3.009   150.75
2132.32    2.982   150.94
2133.32    2.955   151.14
2134.32    2.927   151.34
2135.32    2.899   151.54
2136.32    2.871   151.75
2137.32    2.843   151.96
2138.32    2.814   152.18
2139.32    2.785   152.40
2140.32    2.755   152.62
2141.32    2.725   152.85
2142.32    2.695   153.08
2143.32    2.664   153.32
2144.32    2.633   153.57
2145.32    2.602   153.82
2146.32    2.571   154.08
2147.32    2.539   154.34
2148.32    2.507   154.61
2149.32    2.475   154.89
2150.32    2.442   155.18
2151.32    2.410   155.47
2152.32    2.377   155.77
2153.32    2.343   156.08
2154.32    2.310   156.40
2155.32    2.276   156.73
2156.32    2.242   157.06
2157.32    2.208   157.41
2158.32    2.174   157.77
2159.32    2.140   158.14
2160.32    2.105   158.52
2161.32    2.070   158.92
2162.32    2.035   159.33
2163.32    2.000   159.75
2164.32    1.965   160.19
2165.32    1.930   160.64
2166.32    1.894   161.11
2167.32    1.859   161.60
2168.32    1.823   162.11






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 15:46:56



www.stella-vega.de