Double Star Calculator - Orbit

Orbital Elements for BU509
WDS: BU509 WDS ID/Discoverer
P: 241.200 Orbital period (years)
a: 0.9 Semi-major axis (arcseconds)
i: 118.0 Inclination (degrees)
Ω: 221.04 Longitude of ascending node (degrees)
T: 1983.480 Epoch of periastron passage (year)
e: 0.292 Eccentricity
ω: 94.0 Longitude of periastron (degrees)
Start-Year: 1904.4 Year
End-Year: 2145.6 Year
Epoch: 2026.5 Besselian Epoch
Further data from the WDS Sixth Catalog of Orbits for BU509
Position: 014344.93+093407.2 Epoch-2000 right ascension and declination
WDS-ID: 01437+0934 WDS designation
Discoverer Code: BU509 Discover designation and components
ADS number: 1360 Aitken Double Star catalog
HD number: 10619 HD catalog number
Hipparcos number: 8078 Hipparcos catalog number
V1: 9.48 Magnitude of the primary
V2: 9.19 Magnitude of the secondary
Equinox: 2000 Equinox
Date: 2008 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: Hrt2010a Reference

Double Star Orbit for BU509



WDS 6th Orbit including measures of BU509

-- 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 BU509
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.843    35.40
--------------------------
1904.40    0.804   248.98
1905.40    0.810   248.15
1906.40    0.816   247.32
1907.40    0.822   246.52
1908.40    0.828   245.72
1909.40    0.834   244.93
1910.40    0.839   244.16
1911.40    0.845   243.39
1912.40    0.850   242.64
1913.40    0.854   241.89
1914.40    0.859   241.15
1915.40    0.863   240.42
1916.40    0.867   239.69
1917.40    0.871   238.97
1918.40    0.874   238.26
1919.40    0.878   237.55
1920.40    0.880   236.85
1921.40    0.883   236.15
1922.40    0.885   235.46
1923.40    0.887   234.77
1924.40    0.889   234.08
1925.40    0.890   233.39
1926.40    0.891   232.71
1927.40    0.891   232.02
1928.40    0.891   231.34
1929.40    0.891   230.66
1930.40    0.890   229.97
1931.40    0.888   229.28
1932.40    0.887   228.60
1933.40    0.885   227.90
1934.40    0.882   227.21
1935.40    0.879   226.51
1936.40    0.876   225.80
1937.40    0.872   225.09
1938.40    0.867   224.37
1939.40    0.862   223.65
1940.40    0.856   222.91
1941.40    0.850   222.17
1942.40    0.844   221.41
1943.40    0.837   220.64
1944.40    0.829   219.86
1945.40    0.821   219.06
1946.40    0.812   218.25
1947.40    0.802   217.41
1948.40    0.792   216.56
1949.40    0.782   215.68
1950.40    0.771   214.78
1951.40    0.759   213.85
1952.40    0.747   212.90
1953.40    0.734   211.91
1954.40    0.720   210.88
1955.40    0.706   209.81
1956.40    0.692   208.70
1957.40    0.676   207.54
1958.40    0.661   206.32
1959.40    0.644   205.05
1960.40    0.628   203.71
1961.40    0.610   202.29
1962.40    0.593   200.79
1963.40    0.575   199.20
1964.40    0.556   197.50
1965.40    0.538   195.69
1966.40    0.519   193.74
1967.40    0.500   191.64
1968.40    0.480   189.38
1969.40    0.461   186.93
1970.40    0.442   184.27
1971.40    0.424   181.38
1972.40    0.406   178.22
1973.40    0.388   174.77
1974.40    0.371   171.00
1975.40    0.356   166.89
1976.40    0.342   162.42
1977.40    0.329   157.58
1978.40    0.318   152.39
1979.40    0.310   146.87
1980.40    0.304   141.09
1981.40    0.300   135.12
1982.40    0.299   129.07
1983.40    0.301   123.05
1984.40    0.306   117.16
1985.40    0.313   111.49
1986.40    0.323   106.12
1987.40    0.335   101.10
1988.40    0.348    96.43
1989.40    0.363    92.14
1990.40    0.379    88.19
1991.40    0.396    84.57
1992.40    0.414    81.26
1993.40    0.432    78.22
1994.40    0.451    75.44
1995.40    0.470    72.87
1996.40    0.489    70.50
1997.40    0.507    68.31
1998.40    0.526    66.28
1999.40    0.545    64.39
2000.40    0.563    62.62
2001.40    0.581    60.95
2002.40    0.598    59.39
2003.40    0.615    57.91
2004.40    0.631    56.52
2005.40    0.647    55.19
2006.40    0.663    53.92
2007.40    0.677    52.71
2008.40    0.692    51.55
2009.40    0.705    50.44
2010.40    0.718    49.37
2011.40    0.730    48.33
2012.40    0.742    47.33
2013.40    0.753    46.36
2014.40    0.764    45.42
2015.40    0.774    44.50
2016.40    0.783    43.60
2017.40    0.791    42.73
2018.40    0.799    41.87
2019.40    0.807    41.03
2020.40    0.814    40.20
2021.40    0.820    39.39
2022.40    0.826    38.59
2023.40    0.831    37.80
2024.40    0.835    37.01
2025.40    0.839    36.24
2026.40    0.843    35.47
2027.40    0.846    34.71
2028.40    0.849    33.96
2029.40    0.851    33.20
2030.40    0.852    32.45
2031.40    0.853    31.71
2032.40    0.854    30.96
2033.40    0.854    30.22
2034.40    0.854    29.47
2035.40    0.853    28.73
2036.40    0.852    27.98
2037.40    0.851    27.23
2038.40    0.849    26.48
2039.40    0.847    25.73
2040.40    0.844    24.97
2041.40    0.841    24.20
2042.40    0.838    23.43
2043.40    0.835    22.66
2044.40    0.831    21.87
2045.40    0.827    21.08
2046.40    0.823    20.29
2047.40    0.818    19.48
2048.40    0.813    18.66
2049.40    0.808    17.84
2050.40    0.803    17.00
2051.40    0.797    16.15
2052.40    0.791    15.29
2053.40    0.786    14.42
2054.40    0.780    13.53
2055.40    0.773    12.63
2056.40    0.767    11.72
2057.40    0.760    10.79
2058.40    0.754     9.84
2059.40    0.747     8.87
2060.40    0.740     7.89
2061.40    0.733     6.89
2062.40    0.726     5.87
2063.40    0.719     4.83
2064.40    0.712     3.77
2065.40    0.705     2.69
2066.40    0.698     1.59
2067.40    0.691     0.46
2068.40    0.684   359.31
2069.40    0.676   358.14
2070.40    0.669   356.94
2071.40    0.662   355.72
2072.40    0.655   354.47
2073.40    0.648   353.19
2074.40    0.642   351.88
2075.40    0.635   350.55
2076.40    0.628   349.19
2077.40    0.622   347.80
2078.40    0.616   346.39
2079.40    0.610   344.94
2080.40    0.604   343.47
2081.40    0.598   341.96
2082.40    0.593   340.43
2083.40    0.587   338.87
2084.40    0.582   337.28
2085.40    0.578   335.67
2086.40    0.573   334.03
2087.40    0.569   332.37
2088.40    0.565   330.68
2089.40    0.562   328.97
2090.40    0.558   327.24
2091.40    0.556   325.49
2092.40    0.553   323.72
2093.40    0.551   321.94
2094.40    0.549   320.14
2095.40    0.547   318.34
2096.40    0.546   316.52
2097.40    0.546   314.70
2098.40    0.545   312.88
2099.40    0.545   311.05
2100.40    0.546   309.23
2101.40    0.547   307.41
2102.40    0.548   305.59
2103.40    0.549   303.79
2104.40    0.551   302.00
2105.40    0.554   300.22
2106.40    0.556   298.45
2107.40    0.559   296.71
2108.40    0.562   294.98
2109.40    0.566   293.28
2110.40    0.570   291.59
2111.40    0.574   289.94
2112.40    0.579   288.30
2113.40    0.584   286.70
2114.40    0.589   285.12
2115.40    0.594   283.57
2116.40    0.600   282.04
2117.40    0.606   280.55
2118.40    0.612   279.08
2119.40    0.618   277.65
2120.40    0.624   276.24
2121.40    0.631   274.86
2122.40    0.638   273.51
2123.40    0.644   272.19
2124.40    0.651   270.90
2125.40    0.658   269.63
2126.40    0.666   268.39
2127.40    0.673   267.18
2128.40    0.680   266.00
2129.40    0.688   264.83
2130.40    0.695   263.70
2131.40    0.702   262.59
2132.40    0.710   261.50
2133.40    0.717   260.43
2134.40    0.725   259.39
2135.40    0.732   258.37
2136.40    0.740   257.36
2137.40    0.747   256.38
2138.40    0.754   255.42
2139.40    0.761   254.47
2140.40    0.769   253.54
2141.40    0.776   252.63
2142.40    0.783   251.74
2143.40    0.789   250.86
2144.40    0.796   250.00
2145.40    0.803   249.15






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 14:53:15



www.stella-vega.de