Double Star Calculator - Orbit

Orbital Elements for BU575AB
WDS: BU575AB WDS ID/Discoverer
P: 402.960 Orbital period (years)
a: 0.855 Semi-major axis (arcseconds)
i: 57.5 Inclination (degrees)
Ω: 267.2 Longitude of ascending node (degrees)
T: 1620.490 Epoch of periastron passage (year)
e: 0.393 Eccentricity
ω: 79.4 Longitude of periastron (degrees)
Start-Year: 1823.52 Year
End-Year: 2226.48 Year
Epoch: 2026.5 Besselian Epoch
Further data from the WDS Sixth Catalog of Orbits for BU575AB
Position: 071448.26-152833.5 Epoch-2000 right ascension and declination
WDS-ID: 07148-1529 WDS designation
Discoverer Code: BU575AB Discover designation and components
ADS number: 5925 Aitken Double Star catalog
HD number: 56012 HD catalog number
Hipparcos number: 35035 Hipparcos catalog number
V1: 8.29 Magnitude of the primary
V2: 7.88 Magnitude of the secondary
Equinox: 2000 Equinox
Date: 1998 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: Hrt2001a Reference

Double Star Orbit for BU575AB



WDS 6th Orbit including measures of BU575AB

-- 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 BU575AB
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.281   350.14
--------------------------
1823.52    0.663   159.13
1824.52    0.661   159.87
1825.52    0.659   160.61
1826.52    0.657   161.35
1827.52    0.656   162.10
1828.52    0.654   162.85
1829.52    0.652   163.61
1830.52    0.651   164.37
1831.52    0.649   165.13
1832.52    0.648   165.90
1833.52    0.646   166.67
1834.52    0.645   167.45
1835.52    0.643   168.22
1836.52    0.642   169.00
1837.52    0.641   169.79
1838.52    0.640   170.58
1839.52    0.639   171.36
1840.52    0.638   172.16
1841.52    0.637   172.95
1842.52    0.636   173.75
1843.52    0.635   174.55
1844.52    0.634   175.35
1845.52    0.634   176.15
1846.52    0.633   176.95
1847.52    0.633   177.76
1848.52    0.632   178.57
1849.52    0.632   179.38
1850.52    0.631   180.18
1851.52    0.631   180.99
1852.52    0.631   181.81
1853.52    0.631   182.62
1854.52    0.631   183.43
1855.52    0.631   184.24
1856.52    0.631   185.05
1857.52    0.631   185.86
1858.52    0.631   186.67
1859.52    0.631   187.48
1860.52    0.631   188.29
1861.52    0.632   189.10
1862.52    0.632   189.91
1863.52    0.633   190.72
1864.52    0.633   191.52
1865.52    0.634   192.32
1866.52    0.635   193.13
1867.52    0.635   193.93
1868.52    0.636   194.72
1869.52    0.637   195.52
1870.52    0.638   196.31
1871.52    0.639   197.11
1872.52    0.640   197.90
1873.52    0.641   198.68
1874.52    0.642   199.47
1875.52    0.643   200.25
1876.52    0.645   201.02
1877.52    0.646   201.80
1878.52    0.647   202.57
1879.52    0.649   203.34
1880.52    0.650   204.10
1881.52    0.652   204.86
1882.52    0.653   205.62
1883.52    0.655   206.38
1884.52    0.656   207.13
1885.52    0.658   207.87
1886.52    0.660   208.62
1887.52    0.661   209.36
1888.52    0.663   210.09
1889.52    0.665   210.82
1890.52    0.667   211.55
1891.52    0.669   212.28
1892.52    0.671   213.00
1893.52    0.672   213.71
1894.52    0.674   214.42
1895.52    0.676   215.13
1896.52    0.678   215.83
1897.52    0.680   216.53
1898.52    0.682   217.23
1899.52    0.684   217.92
1900.52    0.686   218.61
1901.52    0.688   219.29
1902.52    0.690   219.97
1903.52    0.693   220.64
1904.52    0.695   221.31
1905.52    0.697   221.98
1906.52    0.699   222.64
1907.52    0.701   223.30
1908.52    0.703   223.96
1909.52    0.705   224.61
1910.52    0.707   225.26
1911.52    0.709   225.90
1912.52    0.711   226.54
1913.52    0.713   227.18
1914.52    0.715   227.81
1915.52    0.717   228.44
1916.52    0.719   229.06
1917.52    0.721   229.69
1918.52    0.723   230.31
1919.52    0.725   230.92
1920.52    0.726   231.53
1921.52    0.728   232.14
1922.52    0.730   232.75
1923.52    0.732   233.36
1924.52    0.734   233.96
1925.52    0.735   234.55
1926.52    0.737   235.15
1927.52    0.738   235.74
1928.52    0.740   236.33
1929.52    0.741   236.92
1930.52    0.743   237.51
1931.52    0.744   238.09
1932.52    0.745   238.67
1933.52    0.747   239.25
1934.52    0.748   239.83
1935.52    0.749   240.41
1936.52    0.750   240.98
1937.52    0.751   241.56
1938.52    0.752   242.13
1939.52    0.752   242.70
1940.52    0.753   243.27
1941.52    0.754   243.84
1942.52    0.754   244.40
1943.52    0.755   244.97
1944.52    0.755   245.54
1945.52    0.755   246.10
1946.52    0.755   246.67
1947.52    0.755   247.23
1948.52    0.755   247.80
1949.52    0.755   248.37
1950.52    0.755   248.93
1951.52    0.754   249.50
1952.52    0.754   250.07
1953.52    0.753   250.63
1954.52    0.752   251.20
1955.52    0.751   251.77
1956.52    0.750   252.35
1957.52    0.749   252.92
1958.52    0.748   253.50
1959.52    0.746   254.07
1960.52    0.745   254.66
1961.52    0.743   255.24
1962.52    0.741   255.83
1963.52    0.739   256.41
1964.52    0.736   257.01
1965.52    0.734   257.61
1966.52    0.731   258.21
1967.52    0.728   258.81
1968.52    0.725   259.42
1969.52    0.722   260.04
1970.52    0.719   260.66
1971.52    0.715   261.29
1972.52    0.711   261.92
1973.52    0.707   262.56
1974.52    0.703   263.21
1975.52    0.699   263.87
1976.52    0.694   264.53
1977.52    0.689   265.21
1978.52    0.684   265.89
1979.52    0.679   266.59
1980.52    0.673   267.29
1981.52    0.668   268.01
1982.52    0.662   268.74
1983.52    0.656   269.48
1984.52    0.649   270.24
1985.52    0.642   271.02
1986.52    0.635   271.81
1987.52    0.628   272.61
1988.52    0.621   273.44
1989.52    0.613   274.29
1990.52    0.605   275.16
1991.52    0.597   276.05
1992.52    0.589   276.97
1993.52    0.580   277.91
1994.52    0.571   278.89
1995.52    0.562   279.89
1996.52    0.553   280.93
1997.52    0.543   282.01
1998.52    0.533   283.12
1999.52    0.523   284.28
2000.52    0.513   285.48
2001.52    0.503   286.73
2002.52    0.492   288.03
2003.52    0.482   289.39
2004.52    0.471   290.82
2005.52    0.460   292.31
2006.52    0.449   293.87
2007.52    0.438   295.51
2008.52    0.427   297.24
2009.52    0.416   299.06
2010.52    0.405   300.98
2011.52    0.394   303.00
2012.52    0.383   305.14
2013.52    0.372   307.41
2014.52    0.362   309.81
2015.52    0.351   312.35
2016.52    0.342   315.04
2017.52    0.332   317.88
2018.52    0.324   320.88
2019.52    0.315   324.04
2020.52    0.308   327.37
2021.52    0.301   330.85
2022.52    0.295   334.49
2023.52    0.290   338.26
2024.52    0.286   342.16
2025.52    0.283   346.15
2026.52    0.281   350.22
2027.52    0.280   354.32
2028.52    0.280   358.43
2029.52    0.282     2.52
2030.52    0.284     6.55
2031.52    0.288    10.48
2032.52    0.293    14.31
2033.52    0.298    18.00
2034.52    0.305    21.55
2035.52    0.312    24.94
2036.52    0.320    28.16
2037.52    0.329    31.22
2038.52    0.338    34.12
2039.52    0.348    36.86
2040.52    0.358    39.44
2041.52    0.369    41.88
2042.52    0.380    44.18
2043.52    0.391    46.36
2044.52    0.402    48.41
2045.52    0.414    50.34
2046.52    0.425    52.18
2047.52    0.437    53.91
2048.52    0.449    55.56
2049.52    0.460    57.12
2050.52    0.472    58.60
2051.52    0.484    60.02
2052.52    0.495    61.36
2053.52    0.507    62.65
2054.52    0.518    63.88
2055.52    0.529    65.06
2056.52    0.540    66.18
2057.52    0.551    67.27
2058.52    0.562    68.31
2059.52    0.573    69.31
2060.52    0.583    70.28
2061.52    0.594    71.21
2062.52    0.604    72.11
2063.52    0.614    72.98
2064.52    0.623    73.82
2065.52    0.633    74.64
2066.52    0.642    75.44
2067.52    0.651    76.21
2068.52    0.660    76.96
2069.52    0.669    77.69
2070.52    0.678    78.40
2071.52    0.686    79.09
2072.52    0.694    79.77
2073.52    0.702    80.43
2074.52    0.710    81.08
2075.52    0.717    81.72
2076.52    0.725    82.34
2077.52    0.732    82.95
2078.52    0.739    83.54
2079.52    0.745    84.13
2080.52    0.752    84.70
2081.52    0.758    85.27
2082.52    0.764    85.83
2083.52    0.770    86.37
2084.52    0.776    86.91
2085.52    0.782    87.45
2086.52    0.787    87.97
2087.52    0.793    88.49
2088.52    0.798    89.00
2089.52    0.802    89.50
2090.52    0.807    90.00
2091.52    0.812    90.49
2092.52    0.816    90.98
2093.52    0.820    91.46
2094.52    0.824    91.94
2095.52    0.828    92.41
2096.52    0.832    92.88
2097.52    0.836    93.34
2098.52    0.839    93.80
2099.52    0.842    94.26
2100.52    0.845    94.71
2101.52    0.848    95.16
2102.52    0.851    95.61
2103.52    0.854    96.05
2104.52    0.856    96.49
2105.52    0.859    96.93
2106.52    0.861    97.37
2107.52    0.863    97.80
2108.52    0.865    98.24
2109.52    0.867    98.67
2110.52    0.869    99.09
2111.52    0.870    99.52
2112.52    0.872    99.95
2113.52    0.873   100.37
2114.52    0.875   100.79
2115.52    0.876   101.21
2116.52    0.877   101.63
2117.52    0.878   102.05
2118.52    0.878   102.47
2119.52    0.879   102.89
2120.52    0.880   103.31
2121.52    0.880   103.72
2122.52    0.881   104.14
2123.52    0.881   104.56
2124.52    0.881   104.97
2125.52    0.881   105.39
2126.52    0.881   105.80
2127.52    0.881   106.22
2128.52    0.881   106.63
2129.52    0.881   107.05
2130.52    0.880   107.47
2131.52    0.880   107.88
2132.52    0.879   108.30
2133.52    0.878   108.72
2134.52    0.878   109.14
2135.52    0.877   109.56
2136.52    0.876   109.98
2137.52    0.875   110.40
2138.52    0.874   110.82
2139.52    0.873   111.24
2140.52    0.872   111.67
2141.52    0.871   112.09
2142.52    0.869   112.52
2143.52    0.868   112.94
2144.52    0.867   113.37
2145.52    0.865   113.80
2146.52    0.863   114.24
2147.52    0.862   114.67
2148.52    0.860   115.10
2149.52    0.858   115.54
2150.52    0.857   115.98
2151.52    0.855   116.42
2152.52    0.853   116.86
2153.52    0.851   117.31
2154.52    0.849   117.75
2155.52    0.847   118.20
2156.52    0.845   118.65
2157.52    0.843   119.11
2158.52    0.840   119.56
2159.52    0.838   120.02
2160.52    0.836   120.48
2161.52    0.834   120.95
2162.52    0.831   121.41
2163.52    0.829   121.88
2164.52    0.826   122.35
2165.52    0.824   122.82
2166.52    0.821   123.30
2167.52    0.819   123.78
2168.52    0.816   124.26
2169.52    0.814   124.75
2170.52    0.811   125.24
2171.52    0.808   125.73
2172.52    0.806   126.23
2173.52    0.803   126.72
2174.52    0.800   127.23
2175.52    0.798   127.73
2176.52    0.795   128.24
2177.52    0.792   128.75
2178.52    0.789   129.27
2179.52    0.787   129.79
2180.52    0.784   130.31
2181.52    0.781   130.84
2182.52    0.778   131.37
2183.52    0.775   131.90
2184.52    0.772   132.44
2185.52    0.769   132.99
2186.52    0.767   133.53
2187.52    0.764   134.08
2188.52    0.761   134.64
2189.52    0.758   135.20
2190.52    0.755   135.76
2191.52    0.752   136.33
2192.52    0.749   136.90
2193.52    0.746   137.48
2194.52    0.744   138.06
2195.52    0.741   138.65
2196.52    0.738   139.24
2197.52    0.735   139.83
2198.52    0.732   140.43
2199.52    0.729   141.04
2200.52    0.727   141.65
2201.52    0.724   142.26
2202.52    0.721   142.88
2203.52    0.718   143.50
2204.52    0.715   144.13
2205.52    0.713   144.76
2206.52    0.710   145.40
2207.52    0.707   146.04
2208.52    0.705   146.69
2209.52    0.702   147.34
2210.52    0.700   148.00
2211.52    0.697   148.66
2212.52    0.694   149.33
2213.52    0.692   150.00
2214.52    0.689   150.67
2215.52    0.687   151.36
2216.52    0.685   152.04
2217.52    0.682   152.73
2218.52    0.680   153.43
2219.52    0.678   154.13
2220.52    0.675   154.83
2221.52    0.673   155.54
2222.52    0.671   156.26
2223.52    0.669   156.98
2224.52    0.667   157.70
2225.52    0.665   158.43






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.


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Double Star Calculator: Version 1.2 ($Rev: 2397 $)
Report created: 2026-06-25 15:55:52



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