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

Double Star Calculator - Orbit

- Revision: $Rev: 1216 $
- Report created: 2025-07-11 17:03:59

Orbital Elements for BU186
WDS: BU186 WDS ID/Discoverer
P: 729.600 Orbital period (years)
a: 1.53 Semi-major axis (arcseconds)
i: 55.6 Inclination (degrees)
Ω: 178.1 Longitude of ascending node (degrees)
T: 1999.780 Epoch of periastron passage (year)
e: 0.806 Eccentricity
ω: 150.2 Longitude of periastron (degrees)
Start-Year: 1661.0 Year
End-Year: 2389.0 Year
Epoch: 2025.0 Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for BU186
Position: 044559.70-065916.9 Epoch-2000 right ascension and declination
WDS-ID: 04460-0659 WDS designation
Discoverer Code: BU186 Discover designation and components
ADS number: 3430 Aitken Double Star catalog
HD number: 30301 HD catalog number
Hipparcos number: 22151 Hipparcos catalog number
V1: 7.81 Magnitude of the primary
V2: 9.73 Magnitude of the secondary
Equinox: 2000 Equinox
Date: 2012 Date of last observation
Orbit grade: 5 Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags: Flags

Double Star Orbit for BU186



WDS 6th Orbit including measures of BU186

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


Ephemeris of BU186
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2025.0     0.404     60.9
-------------------------
1661.0     2.546    161.7
1662.0     2.547    161.8
1663.0     2.548    161.9
1664.0     2.548    161.9
1665.0     2.549    162.0
1666.0     2.549    162.0
1667.0     2.550    162.1
1668.0     2.550    162.2
1669.0     2.551    162.2
1670.0     2.551    162.3
1671.0     2.551    162.3
1672.0     2.552    162.4
1673.0     2.552    162.4
1674.0     2.552    162.5
1675.0     2.552    162.6
1676.0     2.553    162.6
1677.0     2.553    162.7
1678.0     2.553    162.7
1679.0     2.553    162.8
1680.0     2.553    162.9
1681.0     2.553    162.9
1682.0     2.553    163.0
1683.0     2.553    163.0
1684.0     2.553    163.1
1685.0     2.553    163.2
1686.0     2.553    163.2
1687.0     2.553    163.3
1688.0     2.553    163.3
1689.0     2.552    163.4
1690.0     2.552    163.5
1691.0     2.552    163.5
1692.0     2.552    163.6
1693.0     2.551    163.6
1694.0     2.551    163.7
1695.0     2.550    163.8
1696.0     2.550    163.8
1697.0     2.550    163.9
1698.0     2.549    163.9
1699.0     2.549    164.0
1700.0     2.548    164.0
1701.0     2.548    164.1
1702.0     2.547    164.2
1703.0     2.546    164.2
1704.0     2.546    164.3
1705.0     2.545    164.3
1706.0     2.544    164.4
1707.0     2.543    164.5
1708.0     2.543    164.5
1709.0     2.542    164.6
1710.0     2.541    164.6
1711.0     2.540    164.7
1712.0     2.539    164.8
1713.0     2.538    164.8
1714.0     2.537    164.9
1715.0     2.536    164.9
1716.0     2.535    165.0
1717.0     2.534    165.1
1718.0     2.533    165.1
1719.0     2.532    165.2
1720.0     2.531    165.2
1721.0     2.529    165.3
1722.0     2.528    165.4
1723.0     2.527    165.4
1724.0     2.525    165.5
1725.0     2.524    165.5
1726.0     2.523    165.6
1727.0     2.521    165.7
1728.0     2.520    165.7
1729.0     2.518    165.8
1730.0     2.517    165.9
1731.0     2.515    165.9
1732.0     2.514    166.0
1733.0     2.512    166.0
1734.0     2.510    166.1
1735.0     2.509    166.2
1736.0     2.507    166.2
1737.0     2.505    166.3
1738.0     2.503    166.3
1739.0     2.502    166.4
1740.0     2.500    166.5
1741.0     2.498    166.5
1742.0     2.496    166.6
1743.0     2.494    166.7
1744.0     2.492    166.7
1745.0     2.490    166.8
1746.0     2.488    166.8
1747.0     2.486    166.9
1748.0     2.484    167.0
1749.0     2.481    167.0
1750.0     2.479    167.1
1751.0     2.477    167.2
1752.0     2.475    167.2
1753.0     2.472    167.3
1754.0     2.470    167.3
1755.0     2.468    167.4
1756.0     2.465    167.5
1757.0     2.463    167.5
1758.0     2.460    167.6
1759.0     2.458    167.7
1760.0     2.455    167.7
1761.0     2.453    167.8
1762.0     2.450    167.9
1763.0     2.447    167.9
1764.0     2.445    168.0
1765.0     2.442    168.0
1766.0     2.439    168.1
1767.0     2.436    168.2
1768.0     2.433    168.2
1769.0     2.430    168.3
1770.0     2.427    168.4
1771.0     2.424    168.4
1772.0     2.421    168.5
1773.0     2.418    168.6
1774.0     2.415    168.6
1775.0     2.412    168.7
1776.0     2.409    168.8
1777.0     2.406    168.8
1778.0     2.402    168.9
1779.0     2.399    169.0
1780.0     2.396    169.0
1781.0     2.392    169.1
1782.0     2.389    169.2
1783.0     2.386    169.2
1784.0     2.382    169.3
1785.0     2.379    169.4
1786.0     2.375    169.4
1787.0     2.371    169.5
1788.0     2.368    169.6
1789.0     2.364    169.6
1790.0     2.360    169.7
1791.0     2.357    169.8
1792.0     2.353    169.9
1793.0     2.349    169.9
1794.0     2.345    170.0
1795.0     2.341    170.1
1796.0     2.337    170.1
1797.0     2.333    170.2
1798.0     2.329    170.3
1799.0     2.325    170.4
1800.0     2.321    170.4
1801.0     2.316    170.5
1802.0     2.312    170.6
1803.0     2.308    170.6
1804.0     2.304    170.7
1805.0     2.299    170.8
1806.0     2.295    170.9
1807.0     2.290    170.9
1808.0     2.286    171.0
1809.0     2.281    171.1
1810.0     2.277    171.2
1811.0     2.272    171.2
1812.0     2.267    171.3
1813.0     2.263    171.4
1814.0     2.258    171.5
1815.0     2.253    171.5
1816.0     2.248    171.6
1817.0     2.243    171.7
1818.0     2.238    171.8
1819.0     2.233    171.8
1820.0     2.228    171.9
1821.0     2.223    172.0
1822.0     2.218    172.1
1823.0     2.213    172.2
1824.0     2.208    172.2
1825.0     2.202    172.3
1826.0     2.197    172.4
1827.0     2.192    172.5
1828.0     2.186    172.5
1829.0     2.181    172.6
1830.0     2.175    172.7
1831.0     2.169    172.8
1832.0     2.164    172.9
1833.0     2.158    173.0
1834.0     2.152    173.0
1835.0     2.147    173.1
1836.0     2.141    173.2
1837.0     2.135    173.3
1838.0     2.129    173.4
1839.0     2.123    173.5
1840.0     2.117    173.6
1841.0     2.111    173.6
1842.0     2.105    173.7
1843.0     2.098    173.8
1844.0     2.092    173.9
1845.0     2.086    174.0
1846.0     2.079    174.1
1847.0     2.073    174.2
1848.0     2.066    174.3
1849.0     2.060    174.3
1850.0     2.053    174.4
1851.0     2.047    174.5
1852.0     2.040    174.6
1853.0     2.033    174.7
1854.0     2.026    174.8
1855.0     2.019    174.9
1856.0     2.012    175.0
1857.0     2.005    175.1
1858.0     1.998    175.2
1859.0     1.991    175.3
1860.0     1.984    175.4
1861.0     1.977    175.5
1862.0     1.969    175.6
1863.0     1.962    175.7
1864.0     1.955    175.8
1865.0     1.947    175.9
1866.0     1.940    176.0
1867.0     1.932    176.1
1868.0     1.924    176.2
1869.0     1.916    176.3
1870.0     1.909    176.4
1871.0     1.901    176.5
1872.0     1.893    176.6
1873.0     1.885    176.7
1874.0     1.877    176.8
1875.0     1.868    176.9
1876.0     1.860    177.1
1877.0     1.852    177.2
1878.0     1.844    177.3
1879.0     1.835    177.4
1880.0     1.827    177.5
1881.0     1.818    177.6
1882.0     1.809    177.7
1883.0     1.801    177.9
1884.0     1.792    178.0
1885.0     1.783    178.1
1886.0     1.774    178.2
1887.0     1.765    178.4
1888.0     1.756    178.5
1889.0     1.747    178.6
1890.0     1.737    178.7
1891.0     1.728    178.9
1892.0     1.719    179.0
1893.0     1.709    179.1
1894.0     1.699    179.3
1895.0     1.690    179.4
1896.0     1.680    179.5
1897.0     1.670    179.7
1898.0     1.660    179.8
1899.0     1.650    179.9
1900.0     1.640    180.1
1901.0     1.630    180.2
1902.0     1.620    180.4
1903.0     1.609    180.5
1904.0     1.599    180.7
1905.0     1.588    180.8
1906.0     1.578    181.0
1907.0     1.567    181.1
1908.0     1.556    181.3
1909.0     1.545    181.5
1910.0     1.534    181.6
1911.0     1.523    181.8
1912.0     1.512    182.0
1913.0     1.500    182.1
1914.0     1.489    182.3
1915.0     1.477    182.5
1916.0     1.466    182.6
1917.0     1.454    182.8
1918.0     1.442    183.0
1919.0     1.430    183.2
1920.0     1.418    183.4
1921.0     1.406    183.6
1922.0     1.394    183.8
1923.0     1.381    184.0
1924.0     1.369    184.2
1925.0     1.356    184.4
1926.0     1.343    184.6
1927.0     1.330    184.8
1928.0     1.317    185.0
1929.0     1.304    185.3
1930.0     1.291    185.5
1931.0     1.278    185.7
1932.0     1.264    186.0
1933.0     1.250    186.2
1934.0     1.237    186.5
1935.0     1.223    186.7
1936.0     1.209    187.0
1937.0     1.194    187.3
1938.0     1.180    187.5
1939.0     1.165    187.8
1940.0     1.151    188.1
1941.0     1.136    188.4
1942.0     1.121    188.7
1943.0     1.106    189.0
1944.0     1.090    189.3
1945.0     1.075    189.7
1946.0     1.059    190.0
1947.0     1.044    190.3
1948.0     1.028    190.7
1949.0     1.011    191.1
1950.0     0.995    191.5
1951.0     0.979    191.9
1952.0     0.962    192.3
1953.0     0.945    192.7
1954.0     0.928    193.1
1955.0     0.911    193.6
1956.0     0.893    194.1
1957.0     0.876    194.6
1958.0     0.858    195.1
1959.0     0.840    195.6
1960.0     0.821    196.2
1961.0     0.803    196.8
1962.0     0.784    197.4
1963.0     0.765    198.0
1964.0     0.746    198.7
1965.0     0.726    199.4
1966.0     0.707    200.2
1967.0     0.687    200.9
1968.0     0.667    201.8
1969.0     0.647    202.7
1970.0     0.626    203.6
1971.0     0.605    204.7
1972.0     0.584    205.8
1973.0     0.563    206.9
1974.0     0.542    208.2
1975.0     0.520    209.6
1976.0     0.498    211.1
1977.0     0.476    212.7
1978.0     0.454    214.5
1979.0     0.432    216.4
1980.0     0.410    218.6
1981.0     0.388    221.0
1982.0     0.366    223.8
1983.0     0.344    226.8
1984.0     0.323    230.3
1985.0     0.303    234.3
1986.0     0.283    238.8
1987.0     0.265    243.9
1988.0     0.248    249.8
1989.0     0.233    256.5
1990.0     0.221    264.1
1991.0     0.212    272.3
1992.0     0.207    281.1
1993.0     0.206    290.2
1994.0     0.209    299.2
1995.0     0.215    307.9
1996.0     0.224    315.9
1997.0     0.235    323.3
1998.0     0.247    329.9
1999.0     0.261    335.9
2000.0     0.274    341.3
2001.0     0.286    346.3
2002.0     0.298    350.8
2003.0     0.308    355.0
2004.0     0.317    358.9
2005.0     0.325      2.7
2006.0     0.332      6.3
2007.0     0.338      9.7
2008.0     0.343     13.0
2009.0     0.348     16.2
2010.0     0.351     19.4
2011.0     0.355     22.5
2012.0     0.358     25.6
2013.0     0.360     28.6
2014.0     0.363     31.5
2015.0     0.366     34.4
2016.0     0.368     37.3
2017.0     0.371     40.1
2018.0     0.374     42.9
2019.0     0.378     45.6
2020.0     0.381     48.3
2021.0     0.385     50.9
2022.0     0.389     53.5
2023.0     0.394     56.0
2024.0     0.398     58.5
2025.0     0.404     60.9
2026.0     0.409     63.2
2027.0     0.415     65.5
2028.0     0.421     67.7
2029.0     0.427     69.9
2030.0     0.434     72.0
2031.0     0.441     74.0
2032.0     0.448     75.9
2033.0     0.455     77.8
2034.0     0.463     79.7
2035.0     0.471     81.4
2036.0     0.479     83.2
2037.0     0.487     84.8
2038.0     0.496     86.4
2039.0     0.504     88.0
2040.0     0.513     89.5
2041.0     0.522     90.9
2042.0     0.531     92.3
2043.0     0.541     93.6
2044.0     0.550     94.9
2045.0     0.560     96.2
2046.0     0.569     97.4
2047.0     0.579     98.6
2048.0     0.589     99.7
2049.0     0.599    100.8
2050.0     0.609    101.9
2051.0     0.619    102.9
2052.0     0.629    103.9
2053.0     0.639    104.8
2054.0     0.649    105.8
2055.0     0.659    106.7
2056.0     0.670    107.5
2057.0     0.680    108.4
2058.0     0.690    109.2
2059.0     0.701    110.0
2060.0     0.711    110.8
2061.0     0.721    111.5
2062.0     0.732    112.3
2063.0     0.742    113.0
2064.0     0.752    113.7
2065.0     0.763    114.4
2066.0     0.773    115.0
2067.0     0.784    115.6
2068.0     0.794    116.3
2069.0     0.804    116.9
2070.0     0.815    117.5
2071.0     0.825    118.0
2072.0     0.836    118.6
2073.0     0.846    119.1
2074.0     0.856    119.7
2075.0     0.867    120.2
2076.0     0.877    120.7
2077.0     0.887    121.2
2078.0     0.897    121.7
2079.0     0.908    122.2
2080.0     0.918    122.6
2081.0     0.928    123.1
2082.0     0.938    123.5
2083.0     0.948    124.0
2084.0     0.958    124.4
2085.0     0.969    124.8
2086.0     0.979    125.2
2087.0     0.989    125.6
2088.0     0.999    126.0
2089.0     1.009    126.4
2090.0     1.018    126.8
2091.0     1.028    127.1
2092.0     1.038    127.5
2093.0     1.048    127.8
2094.0     1.058    128.2
2095.0     1.068    128.5
2096.0     1.077    128.9
2097.0     1.087    129.2
2098.0     1.097    129.5
2099.0     1.107    129.8
2100.0     1.116    130.1
2101.0     1.126    130.5
2102.0     1.135    130.8
2103.0     1.145    131.1
2104.0     1.154    131.3
2105.0     1.164    131.6
2106.0     1.173    131.9
2107.0     1.183    132.2
2108.0     1.192    132.5
2109.0     1.201    132.7
2110.0     1.210    133.0
2111.0     1.220    133.3
2112.0     1.229    133.5
2113.0     1.238    133.8
2114.0     1.247    134.0
2115.0     1.256    134.3
2116.0     1.265    134.5
2117.0     1.274    134.8
2118.0     1.283    135.0
2119.0     1.292    135.2
2120.0     1.301    135.5
2121.0     1.310    135.7
2122.0     1.319    135.9
2123.0     1.328    136.1
2124.0     1.337    136.3
2125.0     1.345    136.6
2126.0     1.354    136.8
2127.0     1.363    137.0
2128.0     1.371    137.2
2129.0     1.380    137.4
2130.0     1.389    137.6
2131.0     1.397    137.8
2132.0     1.406    138.0
2133.0     1.414    138.2
2134.0     1.422    138.4
2135.0     1.431    138.6
2136.0     1.439    138.8
2137.0     1.447    138.9
2138.0     1.456    139.1
2139.0     1.464    139.3
2140.0     1.472    139.5
2141.0     1.480    139.7
2142.0     1.489    139.8
2143.0     1.497    140.0
2144.0     1.505    140.2
2145.0     1.513    140.3
2146.0     1.521    140.5
2147.0     1.529    140.7
2148.0     1.537    140.8
2149.0     1.545    141.0
2150.0     1.552    141.2
2151.0     1.560    141.3
2152.0     1.568    141.5
2153.0     1.576    141.6
2154.0     1.583    141.8
2155.0     1.591    142.0
2156.0     1.599    142.1
2157.0     1.606    142.3
2158.0     1.614    142.4
2159.0     1.622    142.6
2160.0     1.629    142.7
2161.0     1.637    142.8
2162.0     1.644    143.0
2163.0     1.651    143.1
2164.0     1.659    143.3
2165.0     1.666    143.4
2166.0     1.673    143.5
2167.0     1.681    143.7
2168.0     1.688    143.8
2169.0     1.695    144.0
2170.0     1.702    144.1
2171.0     1.709    144.2
2172.0     1.717    144.4
2173.0     1.724    144.5
2174.0     1.731    144.6
2175.0     1.738    144.7
2176.0     1.745    144.9
2177.0     1.752    145.0
2178.0     1.759    145.1
2179.0     1.765    145.2
2180.0     1.772    145.4
2181.0     1.779    145.5
2182.0     1.786    145.6
2183.0     1.793    145.7
2184.0     1.799    145.9
2185.0     1.806    146.0
2186.0     1.813    146.1
2187.0     1.819    146.2
2188.0     1.826    146.3
2189.0     1.832    146.4
2190.0     1.839    146.6
2191.0     1.845    146.7
2192.0     1.852    146.8
2193.0     1.858    146.9
2194.0     1.865    147.0
2195.0     1.871    147.1
2196.0     1.877    147.2
2197.0     1.884    147.3
2198.0     1.890    147.4
2199.0     1.896    147.6
2200.0     1.902    147.7
2201.0     1.909    147.8
2202.0     1.915    147.9
2203.0     1.921    148.0
2204.0     1.927    148.1
2205.0     1.933    148.2
2206.0     1.939    148.3
2207.0     1.945    148.4
2208.0     1.951    148.5
2209.0     1.957    148.6
2210.0     1.963    148.7
2211.0     1.969    148.8
2212.0     1.974    148.9
2213.0     1.980    149.0
2214.0     1.986    149.1
2215.0     1.992    149.2
2216.0     1.997    149.3
2217.0     2.003    149.4
2218.0     2.009    149.5
2219.0     2.014    149.6
2220.0     2.020    149.7
2221.0     2.026    149.8
2222.0     2.031    149.9
2223.0     2.037    149.9
2224.0     2.042    150.0
2225.0     2.047    150.1
2226.0     2.053    150.2
2227.0     2.058    150.3
2228.0     2.064    150.4
2229.0     2.069    150.5
2230.0     2.074    150.6
2231.0     2.079    150.7
2232.0     2.085    150.8
2233.0     2.090    150.9
2234.0     2.095    150.9
2235.0     2.100    151.0
2236.0     2.105    151.1
2237.0     2.110    151.2
2238.0     2.115    151.3
2239.0     2.120    151.4
2240.0     2.125    151.5
2241.0     2.130    151.6
2242.0     2.135    151.6
2243.0     2.140    151.7
2244.0     2.145    151.8
2245.0     2.150    151.9
2246.0     2.155    152.0
2247.0     2.159    152.1
2248.0     2.164    152.1
2249.0     2.169    152.2
2250.0     2.173    152.3
2251.0     2.178    152.4
2252.0     2.183    152.5
2253.0     2.187    152.5
2254.0     2.192    152.6
2255.0     2.196    152.7
2256.0     2.201    152.8
2257.0     2.205    152.9
2258.0     2.210    152.9
2259.0     2.214    153.0
2260.0     2.219    153.1
2261.0     2.223    153.2
2262.0     2.227    153.3
2263.0     2.232    153.3
2264.0     2.236    153.4
2265.0     2.240    153.5
2266.0     2.244    153.6
2267.0     2.249    153.6
2268.0     2.253    153.7
2269.0     2.257    153.8
2270.0     2.261    153.9
2271.0     2.265    153.9
2272.0     2.269    154.0
2273.0     2.273    154.1
2274.0     2.277    154.2
2275.0     2.281    154.2
2276.0     2.285    154.3
2277.0     2.289    154.4
2278.0     2.293    154.5
2279.0     2.297    154.5
2280.0     2.300    154.6
2281.0     2.304    154.7
2282.0     2.308    154.8
2283.0     2.312    154.8
2284.0     2.315    154.9
2285.0     2.319    155.0
2286.0     2.323    155.0
2287.0     2.326    155.1
2288.0     2.330    155.2
2289.0     2.334    155.3
2290.0     2.337    155.3
2291.0     2.341    155.4
2292.0     2.344    155.5
2293.0     2.347    155.5
2294.0     2.351    155.6
2295.0     2.354    155.7
2296.0     2.358    155.8
2297.0     2.361    155.8
2298.0     2.364    155.9
2299.0     2.368    156.0
2300.0     2.371    156.0
2301.0     2.374    156.1
2302.0     2.377    156.2
2303.0     2.380    156.2
2304.0     2.384    156.3
2305.0     2.387    156.4
2306.0     2.390    156.4
2307.0     2.393    156.5
2308.0     2.396    156.6
2309.0     2.399    156.6
2310.0     2.402    156.7
2311.0     2.405    156.8
2312.0     2.408    156.8
2313.0     2.410    156.9
2314.0     2.413    157.0
2315.0     2.416    157.0
2316.0     2.419    157.1
2317.0     2.422    157.2
2318.0     2.424    157.2
2319.0     2.427    157.3
2320.0     2.430    157.4
2321.0     2.432    157.4
2322.0     2.435    157.5
2323.0     2.438    157.6
2324.0     2.440    157.6
2325.0     2.443    157.7
2326.0     2.445    157.8
2327.0     2.448    157.8
2328.0     2.450    157.9
2329.0     2.453    158.0
2330.0     2.455    158.0
2331.0     2.457    158.1
2332.0     2.460    158.1
2333.0     2.462    158.2
2334.0     2.464    158.3
2335.0     2.467    158.3
2336.0     2.469    158.4
2337.0     2.471    158.5
2338.0     2.473    158.5
2339.0     2.475    158.6
2340.0     2.477    158.7
2341.0     2.479    158.7
2342.0     2.481    158.8
2343.0     2.483    158.8
2344.0     2.485    158.9
2345.0     2.487    159.0
2346.0     2.489    159.0
2347.0     2.491    159.1
2348.0     2.493    159.2
2349.0     2.495    159.2
2350.0     2.497    159.3
2351.0     2.499    159.3
2352.0     2.500    159.4
2353.0     2.502    159.5
2354.0     2.504    159.5
2355.0     2.506    159.6
2356.0     2.507    159.6
2357.0     2.509    159.7
2358.0     2.510    159.8
2359.0     2.512    159.8
2360.0     2.514    159.9
2361.0     2.515    160.0
2362.0     2.516    160.0
2363.0     2.518    160.1
2364.0     2.519    160.1
2365.0     2.521    160.2
2366.0     2.522    160.3
2367.0     2.523    160.3
2368.0     2.525    160.4
2369.0     2.526    160.4
2370.0     2.527    160.5
2371.0     2.529    160.6
2372.0     2.530    160.6
2373.0     2.531    160.7
2374.0     2.532    160.7
2375.0     2.533    160.8
2376.0     2.534    160.9
2377.0     2.535    160.9
2378.0     2.536    161.0
2379.0     2.537    161.0
2380.0     2.538    161.1
2381.0     2.539    161.2
2382.0     2.540    161.2
2383.0     2.541    161.3
2384.0     2.542    161.3
2385.0     2.543    161.4
2386.0     2.543    161.5
2387.0     2.544    161.5
2388.0     2.545    161.6






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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