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

Double Star Calculator - Orbit

- Revision: $Rev: 1216 $
- Report created: 2025-07-11 18:53:31

Orbital Elements for BU47
WDS: BU47 WDS ID/Discoverer
P: 403.900 Orbital period (years)
a: 1.209 Semi-major axis (arcseconds)
i: 54.0 Inclination (degrees)
Ω: 85.3 Longitude of ascending node (degrees)
T: 2013.000 Epoch of periastron passage (year)
e: 0.478 Eccentricity
ω: 339.8 Longitude of periastron (degrees)
Start-Year: 1824.0 Year
End-Year: 2226.0 Year
Epoch: 2025.0 Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for BU47
Position: 180130.85-101400.9 Epoch-2000 right ascension and declination
WDS-ID: 18015-1014 WDS designation
Discoverer Code: BU47 Discover designation and components
ADS number: 10977 Aitken Double Star catalog
HD number: 164434 HD catalog number
Hipparcos number: . Hipparcos catalog number
V1: 8.74 Magnitude of the primary
V2: 9.59 Magnitude of the secondary
Equinox: 2000 Equinox
Date: 2009 Date of last observation
Orbit grade: 5 Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags: Flags

Double Star Orbit for BU47



WDS 6th Orbit including measures of BU47

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


Ephemeris of BU47
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.655     93.0
-------------------------
1824.0     1.739    256.0
1825.0     1.740    256.2
1826.0     1.741    256.5
1827.0     1.742    256.7
1828.0     1.743    256.9
1829.0     1.743    257.1
1830.0     1.744    257.3
1831.0     1.744    257.6
1832.0     1.745    257.8
1833.0     1.745    258.0
1834.0     1.745    258.2
1835.0     1.745    258.4
1836.0     1.745    258.7
1837.0     1.745    258.9
1838.0     1.744    259.1
1839.0     1.744    259.3
1840.0     1.744    259.6
1841.0     1.743    259.8
1842.0     1.742    260.0
1843.0     1.741    260.2
1844.0     1.740    260.4
1845.0     1.739    260.7
1846.0     1.738    260.9
1847.0     1.737    261.1
1848.0     1.735    261.3
1849.0     1.734    261.6
1850.0     1.732    261.8
1851.0     1.730    262.0
1852.0     1.728    262.2
1853.0     1.726    262.5
1854.0     1.724    262.7
1855.0     1.722    262.9
1856.0     1.720    263.1
1857.0     1.717    263.4
1858.0     1.714    263.6
1859.0     1.712    263.8
1860.0     1.709    264.0
1861.0     1.706    264.3
1862.0     1.703    264.5
1863.0     1.700    264.7
1864.0     1.696    265.0
1865.0     1.693    265.2
1866.0     1.689    265.4
1867.0     1.686    265.7
1868.0     1.682    265.9
1869.0     1.678    266.2
1870.0     1.674    266.4
1871.0     1.670    266.6
1872.0     1.666    266.9
1873.0     1.661    267.1
1874.0     1.657    267.4
1875.0     1.652    267.6
1876.0     1.647    267.9
1877.0     1.642    268.1
1878.0     1.637    268.4
1879.0     1.632    268.6
1880.0     1.627    268.9
1881.0     1.621    269.1
1882.0     1.616    269.4
1883.0     1.610    269.6
1884.0     1.604    269.9
1885.0     1.598    270.2
1886.0     1.592    270.4
1887.0     1.586    270.7
1888.0     1.580    271.0
1889.0     1.573    271.2
1890.0     1.567    271.5
1891.0     1.560    271.8
1892.0     1.553    272.0
1893.0     1.546    272.3
1894.0     1.539    272.6
1895.0     1.532    272.9
1896.0     1.525    273.2
1897.0     1.517    273.5
1898.0     1.509    273.8
1899.0     1.502    274.1
1900.0     1.494    274.4
1901.0     1.486    274.7
1902.0     1.477    275.0
1903.0     1.469    275.3
1904.0     1.460    275.6
1905.0     1.452    275.9
1906.0     1.443    276.2
1907.0     1.434    276.6
1908.0     1.425    276.9
1909.0     1.416    277.2
1910.0     1.407    277.6
1911.0     1.397    277.9
1912.0     1.388    278.3
1913.0     1.378    278.6
1914.0     1.368    279.0
1915.0     1.358    279.3
1916.0     1.348    279.7
1917.0     1.337    280.1
1918.0     1.327    280.4
1919.0     1.316    280.8
1920.0     1.305    281.2
1921.0     1.295    281.6
1922.0     1.284    282.0
1923.0     1.272    282.4
1924.0     1.261    282.9
1925.0     1.250    283.3
1926.0     1.238    283.7
1927.0     1.226    284.2
1928.0     1.214    284.6
1929.0     1.202    285.1
1930.0     1.190    285.5
1931.0     1.178    286.0
1932.0     1.165    286.5
1933.0     1.153    287.0
1934.0     1.140    287.5
1935.0     1.127    288.0
1936.0     1.114    288.6
1937.0     1.101    289.1
1938.0     1.088    289.7
1939.0     1.074    290.3
1940.0     1.061    290.9
1941.0     1.047    291.5
1942.0     1.033    292.1
1943.0     1.019    292.7
1944.0     1.005    293.4
1945.0     0.991    294.1
1946.0     0.977    294.8
1947.0     0.962    295.5
1948.0     0.948    296.2
1949.0     0.933    297.0
1950.0     0.919    297.7
1951.0     0.904    298.6
1952.0     0.889    299.4
1953.0     0.874    300.3
1954.0     0.859    301.2
1955.0     0.844    302.1
1956.0     0.829    303.0
1957.0     0.814    304.0
1958.0     0.799    305.1
1959.0     0.784    306.1
1960.0     0.769    307.3
1961.0     0.754    308.4
1962.0     0.739    309.6
1963.0     0.724    310.9
1964.0     0.709    312.2
1965.0     0.694    313.6
1966.0     0.679    315.0
1967.0     0.664    316.5
1968.0     0.650    318.0
1969.0     0.636    319.7
1970.0     0.622    321.4
1971.0     0.608    323.2
1972.0     0.594    325.0
1973.0     0.581    327.0
1974.0     0.568    329.0
1975.0     0.556    331.1
1976.0     0.544    333.4
1977.0     0.533    335.7
1978.0     0.522    338.1
1979.0     0.512    340.6
1980.0     0.502    343.2
1981.0     0.493    346.0
1982.0     0.485    348.8
1983.0     0.478    351.7
1984.0     0.472    354.7
1985.0     0.466    357.7
1986.0     0.462      0.8
1987.0     0.459      4.0
1988.0     0.456      7.2
1989.0     0.455     10.5
1990.0     0.454     13.7
1991.0     0.455     17.0
1992.0     0.457     20.2
1993.0     0.459     23.4
1994.0     0.463     26.6
1995.0     0.467     29.7
1996.0     0.472     32.8
1997.0     0.478     35.8
1998.0     0.484     38.7
1999.0     0.491     41.5
2000.0     0.499     44.2
2001.0     0.507     46.9
2002.0     0.515     49.5
2003.0     0.523     52.0
2004.0     0.532     54.4
2005.0     0.541     56.7
2006.0     0.549     59.0
2007.0     0.558     61.2
2008.0     0.567     63.3
2009.0     0.575     65.4
2010.0     0.583     67.4
2011.0     0.591     69.3
2012.0     0.599     71.2
2013.0     0.606     73.1
2014.0     0.613     74.9
2015.0     0.619     76.7
2016.0     0.625     78.4
2017.0     0.630     80.1
2018.0     0.635     81.8
2019.0     0.640     83.5
2020.0     0.643     85.1
2021.0     0.647     86.7
2022.0     0.650     88.3
2023.0     0.652     89.9
2024.0     0.654     91.5
2025.0     0.655     93.0
2026.0     0.656     94.6
2027.0     0.657     96.2
2028.0     0.657     97.7
2029.0     0.656     99.3
2030.0     0.656    100.9
2031.0     0.655    102.4
2032.0     0.653    104.0
2033.0     0.652    105.6
2034.0     0.650    107.2
2035.0     0.648    108.8
2036.0     0.646    110.4
2037.0     0.643    112.0
2038.0     0.641    113.6
2039.0     0.638    115.3
2040.0     0.635    116.9
2041.0     0.633    118.6
2042.0     0.630    120.3
2043.0     0.627    122.0
2044.0     0.625    123.7
2045.0     0.622    125.4
2046.0     0.620    127.2
2047.0     0.618    128.9
2048.0     0.616    130.7
2049.0     0.614    132.5
2050.0     0.612    134.3
2051.0     0.610    136.1
2052.0     0.609    137.9
2053.0     0.608    139.7
2054.0     0.607    141.5
2055.0     0.607    143.3
2056.0     0.607    145.2
2057.0     0.607    147.0
2058.0     0.607    148.8
2059.0     0.608    150.6
2060.0     0.609    152.5
2061.0     0.611    154.3
2062.0     0.613    156.1
2063.0     0.615    157.9
2064.0     0.617    159.6
2065.0     0.620    161.4
2066.0     0.623    163.1
2067.0     0.627    164.8
2068.0     0.631    166.5
2069.0     0.635    168.2
2070.0     0.639    169.9
2071.0     0.644    171.5
2072.0     0.649    173.1
2073.0     0.655    174.7
2074.0     0.660    176.3
2075.0     0.666    177.8
2076.0     0.672    179.3
2077.0     0.679    180.8
2078.0     0.686    182.2
2079.0     0.693    183.6
2080.0     0.700    185.0
2081.0     0.707    186.4
2082.0     0.715    187.7
2083.0     0.723    189.0
2084.0     0.731    190.3
2085.0     0.739    191.5
2086.0     0.747    192.7
2087.0     0.756    193.9
2088.0     0.765    195.1
2089.0     0.773    196.2
2090.0     0.782    197.4
2091.0     0.791    198.4
2092.0     0.801    199.5
2093.0     0.810    200.5
2094.0     0.819    201.5
2095.0     0.829    202.5
2096.0     0.838    203.5
2097.0     0.848    204.5
2098.0     0.858    205.4
2099.0     0.868    206.3
2100.0     0.877    207.2
2101.0     0.887    208.0
2102.0     0.897    208.9
2103.0     0.907    209.7
2104.0     0.917    210.5
2105.0     0.927    211.3
2106.0     0.937    212.1
2107.0     0.948    212.8
2108.0     0.958    213.6
2109.0     0.968    214.3
2110.0     0.978    215.0
2111.0     0.988    215.7
2112.0     0.998    216.4
2113.0     1.008    217.1
2114.0     1.018    217.7
2115.0     1.029    218.4
2116.0     1.039    219.0
2117.0     1.049    219.6
2118.0     1.059    220.2
2119.0     1.069    220.8
2120.0     1.079    221.4
2121.0     1.089    222.0
2122.0     1.099    222.5
2123.0     1.109    223.1
2124.0     1.118    223.6
2125.0     1.128    224.1
2126.0     1.138    224.7
2127.0     1.148    225.2
2128.0     1.158    225.7
2129.0     1.167    226.2
2130.0     1.177    226.7
2131.0     1.186    227.2
2132.0     1.196    227.6
2133.0     1.205    228.1
2134.0     1.215    228.6
2135.0     1.224    229.0
2136.0     1.233    229.5
2137.0     1.243    229.9
2138.0     1.252    230.3
2139.0     1.261    230.8
2140.0     1.270    231.2
2141.0     1.279    231.6
2142.0     1.288    232.0
2143.0     1.297    232.4
2144.0     1.305    232.8
2145.0     1.314    233.2
2146.0     1.323    233.6
2147.0     1.331    234.0
2148.0     1.340    234.3
2149.0     1.348    234.7
2150.0     1.357    235.1
2151.0     1.365    235.4
2152.0     1.373    235.8
2153.0     1.381    236.2
2154.0     1.389    236.5
2155.0     1.397    236.8
2156.0     1.405    237.2
2157.0     1.413    237.5
2158.0     1.421    237.9
2159.0     1.428    238.2
2160.0     1.436    238.5
2161.0     1.443    238.9
2162.0     1.451    239.2
2163.0     1.458    239.5
2164.0     1.465    239.8
2165.0     1.473    240.1
2166.0     1.480    240.4
2167.0     1.487    240.7
2168.0     1.494    241.0
2169.0     1.500    241.3
2170.0     1.507    241.6
2171.0     1.514    241.9
2172.0     1.520    242.2
2173.0     1.527    242.5
2174.0     1.533    242.8
2175.0     1.540    243.1
2176.0     1.546    243.4
2177.0     1.552    243.6
2178.0     1.558    243.9
2179.0     1.564    244.2
2180.0     1.570    244.5
2181.0     1.576    244.7
2182.0     1.581    245.0
2183.0     1.587    245.3
2184.0     1.592    245.5
2185.0     1.598    245.8
2186.0     1.603    246.1
2187.0     1.608    246.3
2188.0     1.613    246.6
2189.0     1.618    246.9
2190.0     1.623    247.1
2191.0     1.628    247.4
2192.0     1.633    247.6
2193.0     1.638    247.9
2194.0     1.642    248.1
2195.0     1.647    248.4
2196.0     1.651    248.6
2197.0     1.655    248.9
2198.0     1.660    249.1
2199.0     1.664    249.3
2200.0     1.668    249.6
2201.0     1.672    249.8
2202.0     1.675    250.1
2203.0     1.679    250.3
2204.0     1.683    250.5
2205.0     1.686    250.8
2206.0     1.690    251.0
2207.0     1.693    251.3
2208.0     1.696    251.5
2209.0     1.699    251.7
2210.0     1.702    252.0
2211.0     1.705    252.2
2212.0     1.708    252.4
2213.0     1.711    252.7
2214.0     1.713    252.9
2215.0     1.716    253.1
2216.0     1.718    253.3
2217.0     1.721    253.6
2218.0     1.723    253.8
2219.0     1.725    254.0
2220.0     1.727    254.2
2221.0     1.729    254.5
2222.0     1.731    254.7
2223.0     1.732    254.9
2224.0     1.734    255.1
2225.0     1.735    255.4






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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