Content-Type: text/html; charset=UTF-8 Double Star Calculator - Orbital Elements

Double Star Calculator - Orbit

- Revision: $Rev: 1216 $
- Report created: 2025-07-11 16:30:40

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: 1905.0 Year
End-Year: 2145.0 Year
Epoch: 2025.0 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' to 5 'indeterminate'
Flags: n Flags

Double Star Orbit for BU509



WDS 6th Orbit including measures of BU509

Image from the USNO WDS 6th Orbit Catalog (see Acknowledgements)


Ephemeris of BU509
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.838     36.5
-------------------------
1905.0     0.808    248.5
1906.0     0.814    247.7
1907.0     0.820    246.8
1908.0     0.826    246.0
1909.0     0.832    245.2
1910.0     0.837    244.5
1911.0     0.843    243.7
1912.0     0.848    242.9
1913.0     0.853    242.2
1914.0     0.857    241.4
1915.0     0.862    240.7
1916.0     0.866    240.0
1917.0     0.870    239.3
1918.0     0.873    238.5
1919.0     0.876    237.8
1920.0     0.879    237.1
1921.0     0.882    236.4
1922.0     0.884    235.7
1923.0     0.886    235.0
1924.0     0.888    234.4
1925.0     0.889    233.7
1926.0     0.890    233.0
1927.0     0.891    232.3
1928.0     0.891    231.6
1929.0     0.891    230.9
1930.0     0.890    230.2
1931.0     0.889    229.6
1932.0     0.888    228.9
1933.0     0.886    228.2
1934.0     0.883    227.5
1935.0     0.880    226.8
1936.0     0.877    226.1
1937.0     0.873    225.4
1938.0     0.869    224.7
1939.0     0.864    223.9
1940.0     0.859    223.2
1941.0     0.853    222.5
1942.0     0.846    221.7
1943.0     0.840    220.9
1944.0     0.832    220.2
1945.0     0.824    219.4
1946.0     0.815    218.6
1947.0     0.806    217.7
1948.0     0.796    216.9
1949.0     0.786    216.0
1950.0     0.775    215.1
1951.0     0.764    214.2
1952.0     0.752    213.3
1953.0     0.739    212.3
1954.0     0.726    211.3
1955.0     0.712    210.2
1956.0     0.697    209.1
1957.0     0.682    208.0
1958.0     0.667    206.8
1959.0     0.651    205.6
1960.0     0.634    204.3
1961.0     0.617    202.9
1962.0     0.600    201.4
1963.0     0.582    199.8
1964.0     0.564    198.2
1965.0     0.545    196.4
1966.0     0.526    194.5
1967.0     0.507    192.5
1968.0     0.488    190.3
1969.0     0.469    187.9
1970.0     0.450    185.4
1971.0     0.431    182.6
1972.0     0.413    179.5
1973.0     0.395    176.2
1974.0     0.378    172.5
1975.0     0.362    168.6
1976.0     0.347    164.3
1977.0     0.334    159.6
1978.0     0.322    154.5
1979.0     0.313    149.1
1980.0     0.306    143.4
1981.0     0.301    137.5
1982.0     0.299    131.5
1983.0     0.300    125.4
1984.0     0.304    119.5
1985.0     0.310    113.7
1986.0     0.319    108.2
1987.0     0.330    103.1
1988.0     0.343     98.3
1989.0     0.357     93.8
1990.0     0.372     89.7
1991.0     0.389     86.0
1992.0     0.407     82.5
1993.0     0.425     79.4
1994.0     0.443     76.5
1995.0     0.462     73.9
1996.0     0.481     71.4
1997.0     0.500     69.2
1998.0     0.519     67.1
1999.0     0.537     65.1
2000.0     0.556     63.3
2001.0     0.573     61.6
2002.0     0.591     60.0
2003.0     0.608     58.5
2004.0     0.625     57.1
2005.0     0.641     55.7
2006.0     0.656     54.4
2007.0     0.672     53.2
2008.0     0.686     52.0
2009.0     0.700     50.9
2010.0     0.713     49.8
2011.0     0.726     48.7
2012.0     0.738     47.7
2013.0     0.749     46.7
2014.0     0.760     45.8
2015.0     0.770     44.9
2016.0     0.779     44.0
2017.0     0.788     43.1
2018.0     0.796     42.2
2019.0     0.804     41.4
2020.0     0.811     40.5
2021.0     0.818     39.7
2022.0     0.824     38.9
2023.0     0.829     38.1
2024.0     0.834     37.3
2025.0     0.838     36.5
2026.0     0.842     35.8
2027.0     0.845     35.0
2028.0     0.848     34.3
2029.0     0.850     33.5
2030.0     0.852     32.8
2031.0     0.853     32.0
2032.0     0.854     31.3
2033.0     0.854     30.5
2034.0     0.854     29.8
2035.0     0.853     29.0
2036.0     0.853     28.3
2037.0     0.851     27.5
2038.0     0.850     26.8
2039.0     0.848     26.0
2040.0     0.845     25.3
2041.0     0.842     24.5
2042.0     0.839     23.7
2043.0     0.836     23.0
2044.0     0.832     22.2
2045.0     0.829     21.4
2046.0     0.824     20.6
2047.0     0.820     19.8
2048.0     0.815     19.0
2049.0     0.810     18.2
2050.0     0.805     17.3
2051.0     0.799     16.5
2052.0     0.794     15.6
2053.0     0.788     14.8
2054.0     0.782     13.9
2055.0     0.776     13.0
2056.0     0.770     12.1
2057.0     0.763     11.2
2058.0     0.756     10.2
2059.0     0.750      9.3
2060.0     0.743      8.3
2061.0     0.736      7.3
2062.0     0.729      6.3
2063.0     0.722      5.3
2064.0     0.715      4.2
2065.0     0.708      3.1
2066.0     0.701      2.0
2067.0     0.694      0.9
2068.0     0.686    359.8
2069.0     0.679    358.6
2070.0     0.672    357.4
2071.0     0.665    356.2
2072.0     0.658    355.0
2073.0     0.651    353.7
2074.0     0.644    352.4
2075.0     0.638    351.1
2076.0     0.631    349.7
2077.0     0.625    348.4
2078.0     0.618    347.0
2079.0     0.612    345.5
2080.0     0.606    344.1
2081.0     0.600    342.6
2082.0     0.595    341.0
2083.0     0.589    339.5
2084.0     0.584    337.9
2085.0     0.580    336.3
2086.0     0.575    334.7
2087.0     0.571    333.0
2088.0     0.567    331.4
2089.0     0.563    329.7
2090.0     0.560    327.9
2091.0     0.557    326.2
2092.0     0.554    324.4
2093.0     0.552    322.7
2094.0     0.550    320.9
2095.0     0.548    319.1
2096.0     0.547    317.2
2097.0     0.546    315.4
2098.0     0.545    313.6
2099.0     0.545    311.8
2100.0     0.546    310.0
2101.0     0.546    308.1
2102.0     0.547    306.3
2103.0     0.549    304.5
2104.0     0.550    302.7
2105.0     0.553    300.9
2106.0     0.555    299.2
2107.0     0.558    297.4
2108.0     0.561    295.7
2109.0     0.565    294.0
2110.0     0.568    292.3
2111.0     0.573    290.6
2112.0     0.577    289.0
2113.0     0.582    287.3
2114.0     0.587    285.7
2115.0     0.592    284.2
2116.0     0.598    282.6
2117.0     0.603    281.1
2118.0     0.609    279.7
2119.0     0.615    278.2
2120.0     0.622    276.8
2121.0     0.628    275.4
2122.0     0.635    274.0
2123.0     0.642    272.7
2124.0     0.649    271.4
2125.0     0.656    270.1
2126.0     0.663    268.9
2127.0     0.670    267.7
2128.0     0.677    266.5
2129.0     0.685    265.3
2130.0     0.692    264.2
2131.0     0.699    263.0
2132.0     0.707    261.9
2133.0     0.714    260.9
2134.0     0.722    259.8
2135.0     0.729    258.8
2136.0     0.737    257.8
2137.0     0.744    256.8
2138.0     0.751    255.8
2139.0     0.759    254.8
2140.0     0.766    253.9
2141.0     0.773    253.0
2142.0     0.780    252.1
2143.0     0.787    251.2
2144.0     0.793    250.3






Disclaimer
This result is provided without warranty. For all terms, see the Full Disclaimer. Copyright (C) 2025. The Double Star Calculator and the results generated are licensed under CC BY-NC-SA 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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