Double Star Calculator - Orbit

Orbital Elements for BU302
WDS: BU302 WDS ID/Discoverer
P: 331.970 Orbital period (years)
a: 0.651 Semi-major axis (arcseconds)
i: 48.1 Inclination (degrees)
Ω: 17.2 Longitude of ascending node (degrees)
T: 2017.540 Epoch of periastron passage (year)
e: 0.665 Eccentricity
ω: 252.2 Longitude of periastron (degrees)
Start-Year: 1859.0149999999999 Year
End-Year: 2190.985 Year
Epoch: 2026.5 Besselian Epoch
Further data from the WDS Sixth Catalog of Orbits for BU302
Position: 005818.89+212416.2 Epoch-2000 right ascension and declination
WDS-ID: 00583+2124 WDS designation
Discoverer Code: BU302 Discover designation and components
ADS number: 805 Aitken Double Star catalog
HD number: 5641 HD catalog number
Hipparcos number: 4558 Hipparcos catalog number
V1: 6.60 Magnitude of the primary
V2: 8.77 Magnitude of the secondary
Equinox: 2000 Equinox
Date: 1999 Date of last observation
Orbit grade: 4 Orbit grade, ranging from :
1 = Definitive
2 = Good
3 = Reliable
4 = Preliminary
5 = Indeterminate
Flags: Flags
Ephemerides: Ephemerides
Code: Cve2006e Reference

Double Star Orbit for BU302



WDS 6th Orbit including measures of BU302

-- 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 BU302
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.216   337.26
--------------------------
1859.01    0.755    84.49
1860.01    0.753    84.89
1861.01    0.752    85.29
1862.01    0.750    85.70
1863.01    0.749    86.11
1864.01    0.747    86.52
1865.01    0.746    86.93
1866.01    0.744    87.34
1867.01    0.743    87.76
1868.01    0.741    88.17
1869.01    0.739    88.59
1870.01    0.738    89.01
1871.01    0.736    89.43
1872.01    0.734    89.86
1873.01    0.733    90.29
1874.01    0.731    90.71
1875.01    0.729    91.14
1876.01    0.727    91.58
1877.01    0.726    92.01
1878.01    0.724    92.45
1879.01    0.722    92.88
1880.01    0.720    93.33
1881.01    0.718    93.77
1882.01    0.717    94.21
1883.01    0.715    94.66
1884.01    0.713    95.11
1885.01    0.711    95.56
1886.01    0.709    96.02
1887.01    0.707    96.48
1888.01    0.705    96.94
1889.01    0.703    97.40
1890.01    0.701    97.86
1891.01    0.699    98.33
1892.01    0.697    98.80
1893.01    0.695    99.27
1894.01    0.693    99.75
1895.01    0.691   100.23
1896.01    0.689   100.71
1897.01    0.687   101.19
1898.01    0.685   101.68
1899.01    0.683   102.17
1900.01    0.681   102.67
1901.01    0.678   103.16
1902.01    0.676   103.66
1903.01    0.674   104.17
1904.01    0.672   104.67
1905.01    0.670   105.18
1906.01    0.667   105.69
1907.01    0.665   106.21
1908.01    0.663   106.73
1909.01    0.661   107.25
1910.01    0.659   107.78
1911.01    0.656   108.31
1912.01    0.654   108.84
1913.01    0.652   109.38
1914.01    0.649   109.92
1915.01    0.647   110.47
1916.01    0.645   111.02
1917.01    0.643   111.57
1918.01    0.640   112.13
1919.01    0.638   112.69
1920.01    0.635   113.25
1921.01    0.633   113.82
1922.01    0.631   114.40
1923.01    0.628   114.98
1924.01    0.626   115.56
1925.01    0.623   116.15
1926.01    0.621   116.74
1927.01    0.619   117.34
1928.01    0.616   117.94
1929.01    0.614   118.54
1930.01    0.611   119.15
1931.01    0.609   119.77
1932.01    0.606   120.39
1933.01    0.604   121.02
1934.01    0.601   121.65
1935.01    0.599   122.29
1936.01    0.596   122.93
1937.01    0.594   123.58
1938.01    0.591   124.23
1939.01    0.588   124.89
1940.01    0.586   125.55
1941.01    0.583   126.22
1942.01    0.581   126.90
1943.01    0.578   127.58
1944.01    0.575   128.27
1945.01    0.573   128.97
1946.01    0.570   129.67
1947.01    0.567   130.38
1948.01    0.565   131.10
1949.01    0.562   131.82
1950.01    0.559   132.55
1951.01    0.556   133.29
1952.01    0.553   134.03
1953.01    0.551   134.78
1954.01    0.548   135.54
1955.01    0.545   136.31
1956.01    0.542   137.09
1957.01    0.539   137.87
1958.01    0.536   138.66
1959.01    0.533   139.47
1960.01    0.530   140.28
1961.01    0.527   141.10
1962.01    0.524   141.93
1963.01    0.521   142.77
1964.01    0.518   143.61
1965.01    0.515   144.47
1966.01    0.512   145.34
1967.01    0.508   146.23
1968.01    0.505   147.12
1969.01    0.502   148.02
1970.01    0.498   148.94
1971.01    0.495   149.87
1972.01    0.492   150.81
1973.01    0.488   151.77
1974.01    0.484   152.74
1975.01    0.481   153.72
1976.01    0.477   154.72
1977.01    0.473   155.74
1978.01    0.469   156.77
1979.01    0.465   157.82
1980.01    0.461   158.89
1981.01    0.457   159.97
1982.01    0.453   161.08
1983.01    0.448   162.21
1984.01    0.444   163.36
1985.01    0.439   164.53
1986.01    0.435   165.73
1987.01    0.430   166.96
1988.01    0.425   168.22
1989.01    0.420   169.50
1990.01    0.414   170.82
1991.01    0.409   172.18
1992.01    0.403   173.57
1993.01    0.397   175.00
1994.01    0.391   176.48
1995.01    0.384   178.01
1996.01    0.377   179.59
1997.01    0.370   181.23
1998.01    0.363   182.94
1999.01    0.355   184.72
2000.01    0.347   186.57
2001.01    0.339   188.52
2002.01    0.330   190.57
2003.01    0.321   192.74
2004.01    0.311   195.04
2005.01    0.301   197.49
2006.01    0.290   200.12
2007.01    0.279   202.96
2008.01    0.267   206.05
2009.01    0.254   209.42
2010.01    0.242   213.15
2011.01    0.229   217.29
2012.01    0.216   221.94
2013.01    0.202   227.20
2014.01    0.189   233.18
2015.01    0.177   240.02
2016.01    0.166   247.79
2017.01    0.158   256.56
2018.01    0.151   266.21
2019.01    0.148   276.48
2020.01    0.148   286.95
2021.01    0.152   297.13
2022.01    0.159   306.60
2023.01    0.169   315.12
2024.01    0.181   322.62
2025.01    0.194   329.14
2026.01    0.209   334.79
2027.01    0.224   339.71
2028.01    0.239   344.00
2029.01    0.254   347.78
2030.01    0.269   351.13
2031.01    0.285   354.12
2032.01    0.299   356.81
2033.01    0.314   359.24
2034.01    0.328     1.47
2035.01    0.342     3.51
2036.01    0.356     5.39
2037.01    0.369     7.14
2038.01    0.382     8.76
2039.01    0.394    10.29
2040.01    0.406    11.72
2041.01    0.418    13.07
2042.01    0.429    14.35
2043.01    0.440    15.56
2044.01    0.451    16.71
2045.01    0.462    17.81
2046.01    0.472    18.86
2047.01    0.482    19.87
2048.01    0.491    20.84
2049.01    0.500    21.78
2050.01    0.509    22.67
2051.01    0.518    23.54
2052.01    0.527    24.38
2053.01    0.535    25.20
2054.01    0.543    25.99
2055.01    0.551    26.75
2056.01    0.558    27.50
2057.01    0.566    28.22
2058.01    0.573    28.93
2059.01    0.580    29.62
2060.01    0.587    30.29
2061.01    0.594    30.95
2062.01    0.600    31.59
2063.01    0.606    32.22
2064.01    0.613    32.84
2065.01    0.618    33.44
2066.01    0.624    34.04
2067.01    0.630    34.62
2068.01    0.635    35.19
2069.01    0.641    35.76
2070.01    0.646    36.31
2071.01    0.651    36.85
2072.01    0.656    37.39
2073.01    0.661    37.92
2074.01    0.666    38.44
2075.01    0.670    38.95
2076.01    0.675    39.46
2077.01    0.679    39.96
2078.01    0.683    40.46
2079.01    0.687    40.94
2080.01    0.691    41.43
2081.01    0.695    41.90
2082.01    0.699    42.37
2083.01    0.703    42.84
2084.01    0.706    43.30
2085.01    0.710    43.76
2086.01    0.713    44.21
2087.01    0.717    44.66
2088.01    0.720    45.11
2089.01    0.723    45.55
2090.01    0.726    45.98
2091.01    0.729    46.42
2092.01    0.732    46.85
2093.01    0.734    47.27
2094.01    0.737    47.70
2095.01    0.740    48.12
2096.01    0.742    48.53
2097.01    0.745    48.95
2098.01    0.747    49.36
2099.01    0.749    49.77
2100.01    0.752    50.18
2101.01    0.754    50.58
2102.01    0.756    50.98
2103.01    0.758    51.38
2104.01    0.760    51.78
2105.01    0.762    52.18
2106.01    0.764    52.57
2107.01    0.765    52.96
2108.01    0.767    53.35
2109.01    0.769    53.74
2110.01    0.770    54.13
2111.01    0.772    54.51
2112.01    0.773    54.90
2113.01    0.775    55.28
2114.01    0.776    55.66
2115.01    0.777    56.04
2116.01    0.779    56.42
2117.01    0.780    56.80
2118.01    0.781    57.18
2119.01    0.782    57.55
2120.01    0.783    57.92
2121.01    0.784    58.30
2122.01    0.785    58.67
2123.01    0.786    59.04
2124.01    0.786    59.41
2125.01    0.787    59.78
2126.01    0.788    60.15
2127.01    0.789    60.52
2128.01    0.789    60.89
2129.01    0.790    61.26
2130.01    0.790    61.63
2131.01    0.791    61.99
2132.01    0.791    62.36
2133.01    0.792    62.73
2134.01    0.792    63.09
2135.01    0.792    63.46
2136.01    0.792    63.82
2137.01    0.793    64.19
2138.01    0.793    64.55
2139.01    0.793    64.92
2140.01    0.793    65.28
2141.01    0.793    65.64
2142.01    0.793    66.01
2143.01    0.793    66.37
2144.01    0.793    66.74
2145.01    0.793    67.10
2146.01    0.793    67.47
2147.01    0.793    67.83
2148.01    0.792    68.20
2149.01    0.792    68.56
2150.01    0.792    68.93
2151.01    0.792    69.29
2152.01    0.791    69.66
2153.01    0.791    70.03
2154.01    0.790    70.39
2155.01    0.790    70.76
2156.01    0.790    71.13
2157.01    0.789    71.49
2158.01    0.788    71.86
2159.01    0.788    72.23
2160.01    0.787    72.60
2161.01    0.787    72.97
2162.01    0.786    73.34
2163.01    0.785    73.71
2164.01    0.785    74.09
2165.01    0.784    74.46
2166.01    0.783    74.83
2167.01    0.782    75.21
2168.01    0.781    75.58
2169.01    0.780    75.96
2170.01    0.780    76.33
2171.01    0.779    76.71
2172.01    0.778    77.09
2173.01    0.777    77.47
2174.01    0.776    77.85
2175.01    0.775    78.23
2176.01    0.774    78.61
2177.01    0.772    79.00
2178.01    0.771    79.38
2179.01    0.770    79.77
2180.01    0.769    80.16
2181.01    0.768    80.54
2182.01    0.767    80.93
2183.01    0.765    81.32
2184.01    0.764    81.72
2185.01    0.763    82.11
2186.01    0.762    82.50
2187.01    0.760    82.90
2188.01    0.759    83.30
2189.01    0.757    83.70
2190.01    0.756    84.10






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 14:45:35



www.stella-vega.de