Double Star Calculator - Orbit

Orbital Elements for HU985
WDS: HU985 WDS ID/Discoverer
P: 495.000 Orbital period (years)
a: 0.87 Semi-major axis (arcseconds)
i: 124.1 Inclination (degrees)
Ω: 117.2 Longitude of ascending node (degrees)
T: 2080.000 Epoch of periastron passage (year)
e: 0.416 Eccentricity
ω: 62.0 Longitude of periastron (degrees)
Start-Year: 1777.5 Year
End-Year: 2272.5 Year
Epoch: 2026.5 Besselian Epoch
Further data from the WDS Sixth Catalog of Orbits for HU985
Position: 224754.00+125836.2 Epoch-2000 right ascension and declination
WDS-ID: 22479+1259 WDS designation
Discoverer Code: HU985 Discover designation and components
ADS number: 16273 Aitken Double Star catalog
HD number: 215839 HD catalog number
Hipparcos number: . Hipparcos catalog number
V1: 9.60 Magnitude of the primary
V2: 9.88 Magnitude of the secondary
Equinox: 2000 Equinox
Date: 1995 Date of last observation
Orbit grade: 5 Orbit grade, ranging from :
1 = Definitive
2 = Good
3 = Reliable
4 = Preliminary
5 = Indeterminate
Flags: n Flags
Ephemerides: Ephemerides
Code: USN2002 Reference

Double Star Orbit for HU985



WDS 6th Orbit including measures of HU985

-- 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 HU985
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.654   129.50
--------------------------
1777.50    0.977   269.26
1778.50    0.975   268.96
1779.50    0.973   268.67
1780.50    0.971   268.37
1781.50    0.969   268.07
1782.50    0.968   267.77
1783.50    0.966   267.47
1784.50    0.964   267.17
1785.50    0.962   266.87
1786.50    0.960   266.57
1787.50    0.958   266.26
1788.50    0.956   265.95
1789.50    0.953   265.65
1790.50    0.951   265.34
1791.50    0.949   265.03
1792.50    0.947   264.71
1793.50    0.945   264.40
1794.50    0.942   264.08
1795.50    0.940   263.77
1796.50    0.938   263.45
1797.50    0.935   263.13
1798.50    0.933   262.81
1799.50    0.931   262.48
1800.50    0.928   262.16
1801.50    0.926   261.83
1802.50    0.923   261.50
1803.50    0.921   261.17
1804.50    0.918   260.84
1805.50    0.916   260.51
1806.50    0.913   260.17
1807.50    0.911   259.84
1808.50    0.908   259.50
1809.50    0.905   259.15
1810.50    0.903   258.81
1811.50    0.900   258.47
1812.50    0.897   258.12
1813.50    0.895   257.77
1814.50    0.892   257.42
1815.50    0.889   257.06
1816.50    0.886   256.71
1817.50    0.884   256.35
1818.50    0.881   255.99
1819.50    0.878   255.63
1820.50    0.875   255.26
1821.50    0.872   254.89
1822.50    0.870   254.52
1823.50    0.867   254.15
1824.50    0.864   253.78
1825.50    0.861   253.40
1826.50    0.858   253.02
1827.50    0.855   252.64
1828.50    0.852   252.25
1829.50    0.849   251.86
1830.50    0.846   251.47
1831.50    0.843   251.08
1832.50    0.840   250.68
1833.50    0.837   250.28
1834.50    0.835   249.88
1835.50    0.832   249.48
1836.50    0.829   249.07
1837.50    0.826   248.66
1838.50    0.823   248.25
1839.50    0.820   247.83
1840.50    0.817   247.41
1841.50    0.814   246.99
1842.50    0.811   246.56
1843.50    0.808   246.14
1844.50    0.805   245.70
1845.50    0.802   245.27
1846.50    0.799   244.83
1847.50    0.796   244.39
1848.50    0.793   243.94
1849.50    0.790   243.50
1850.50    0.787   243.04
1851.50    0.784   242.59
1852.50    0.781   242.13
1853.50    0.778   241.67
1854.50    0.775   241.20
1855.50    0.772   240.73
1856.50    0.769   240.26
1857.50    0.766   239.78
1858.50    0.763   239.30
1859.50    0.760   238.82
1860.50    0.757   238.33
1861.50    0.754   237.84
1862.50    0.751   237.34
1863.50    0.748   236.85
1864.50    0.746   236.34
1865.50    0.743   235.84
1866.50    0.740   235.33
1867.50    0.737   234.81
1868.50    0.734   234.29
1869.50    0.732   233.77
1870.50    0.729   233.24
1871.50    0.726   232.71
1872.50    0.723   232.18
1873.50    0.721   231.64
1874.50    0.718   231.10
1875.50    0.715   230.55
1876.50    0.713   230.00
1877.50    0.710   229.44
1878.50    0.707   228.89
1879.50    0.705   228.32
1880.50    0.702   227.76
1881.50    0.700   227.18
1882.50    0.697   226.61
1883.50    0.695   226.03
1884.50    0.692   225.45
1885.50    0.690   224.86
1886.50    0.687   224.27
1887.50    0.685   223.67
1888.50    0.683   223.07
1889.50    0.680   222.47
1890.50    0.678   221.86
1891.50    0.676   221.25
1892.50    0.674   220.63
1893.50    0.672   220.01
1894.50    0.669   219.39
1895.50    0.667   218.76
1896.50    0.665   218.13
1897.50    0.663   217.49
1898.50    0.661   216.85
1899.50    0.659   216.21
1900.50    0.658   215.56
1901.50    0.656   214.91
1902.50    0.654   214.25
1903.50    0.652   213.60
1904.50    0.650   212.93
1905.50    0.649   212.27
1906.50    0.647   211.60
1907.50    0.645   210.93
1908.50    0.644   210.25
1909.50    0.642   209.57
1910.50    0.641   208.89
1911.50    0.640   208.21
1912.50    0.638   207.52
1913.50    0.637   206.83
1914.50    0.636   206.14
1915.50    0.634   205.44
1916.50    0.633   204.74
1917.50    0.632   204.04
1918.50    0.631   203.34
1919.50    0.630   202.63
1920.50    0.629   201.92
1921.50    0.628   201.21
1922.50    0.627   200.50
1923.50    0.626   199.78
1924.50    0.625   199.07
1925.50    0.625   198.35
1926.50    0.624   197.63
1927.50    0.623   196.90
1928.50    0.623   196.18
1929.50    0.622   195.46
1930.50    0.622   194.73
1931.50    0.621   194.00
1932.50    0.621   193.28
1933.50    0.620   192.55
1934.50    0.620   191.82
1935.50    0.620   191.09
1936.50    0.620   190.36
1937.50    0.619   189.63
1938.50    0.619   188.89
1939.50    0.619   188.16
1940.50    0.619   187.43
1941.50    0.619   186.70
1942.50    0.619   185.97
1943.50    0.619   185.24
1944.50    0.620   184.50
1945.50    0.620   183.77
1946.50    0.620   183.04
1947.50    0.620   182.31
1948.50    0.621   181.59
1949.50    0.621   180.86
1950.50    0.621   180.13
1951.50    0.622   179.40
1952.50    0.622   178.68
1953.50    0.623   177.95
1954.50    0.623   177.23
1955.50    0.624   176.51
1956.50    0.625   175.79
1957.50    0.625   175.07
1958.50    0.626   174.36
1959.50    0.627   173.64
1960.50    0.628   172.93
1961.50    0.628   172.22
1962.50    0.629   171.51
1963.50    0.630   170.80
1964.50    0.631   170.09
1965.50    0.632   169.39
1966.50    0.633   168.68
1967.50    0.634   167.98
1968.50    0.634   167.29
1969.50    0.635   166.59
1970.50    0.636   165.90
1971.50    0.637   165.20
1972.50    0.638   164.51
1973.50    0.639   163.83
1974.50    0.640   163.14
1975.50    0.642   162.46
1976.50    0.643   161.78
1977.50    0.644   161.10
1978.50    0.645   160.42
1979.50    0.646   159.75
1980.50    0.647   159.08
1981.50    0.648   158.41
1982.50    0.649   157.74
1983.50    0.650   157.07
1984.50    0.651   156.41
1985.50    0.652   155.75
1986.50    0.653   155.09
1987.50    0.654   154.43
1988.50    0.655   153.78
1989.50    0.656   153.12
1990.50    0.657   152.47
1991.50    0.658   151.82
1992.50    0.659   151.17
1993.50    0.659   150.53
1994.50    0.660   149.88
1995.50    0.661   149.24
1996.50    0.662   148.60
1997.50    0.662   147.96
1998.50    0.663   147.32
1999.50    0.664   146.68
2000.50    0.664   146.05
2001.50    0.665   145.41
2002.50    0.665   144.78
2003.50    0.666   144.14
2004.50    0.666   143.51
2005.50    0.667   142.88
2006.50    0.667   142.25
2007.50    0.667   141.62
2008.50    0.667   140.98
2009.50    0.667   140.35
2010.50    0.667   139.72
2011.50    0.667   139.09
2012.50    0.667   138.46
2013.50    0.667   137.83
2014.50    0.666   137.20
2015.50    0.666   136.57
2016.50    0.665   135.93
2017.50    0.665   135.30
2018.50    0.664   134.66
2019.50    0.663   134.02
2020.50    0.662   133.39
2021.50    0.661   132.74
2022.50    0.660   132.10
2023.50    0.659   131.46
2024.50    0.657   130.81
2025.50    0.656   130.16
2026.50    0.654   129.50
2027.50    0.653   128.85
2028.50    0.651   128.19
2029.50    0.649   127.52
2030.50    0.646   126.85
2031.50    0.644   126.18
2032.50    0.642   125.50
2033.50    0.639   124.81
2034.50    0.636   124.12
2035.50    0.633   123.43
2036.50    0.630   122.72
2037.50    0.627   122.01
2038.50    0.624   121.30
2039.50    0.620   120.57
2040.50    0.616   119.84
2041.50    0.612   119.09
2042.50    0.608   118.34
2043.50    0.604   117.58
2044.50    0.600   116.80
2045.50    0.595   116.02
2046.50    0.590   115.22
2047.50    0.585   114.40
2048.50    0.580   113.58
2049.50    0.574   112.73
2050.50    0.569   111.88
2051.50    0.563   111.00
2052.50    0.557   110.10
2053.50    0.551   109.19
2054.50    0.545   108.26
2055.50    0.538   107.30
2056.50    0.531   106.32
2057.50    0.525   105.31
2058.50    0.518   104.28
2059.50    0.510   103.22
2060.50    0.503   102.12
2061.50    0.495   101.00
2062.50    0.488    99.84
2063.50    0.480    98.64
2064.50    0.472    97.40
2065.50    0.464    96.12
2066.50    0.456    94.79
2067.50    0.448    93.42
2068.50    0.439    91.99
2069.50    0.431    90.51
2070.50    0.423    88.97
2071.50    0.414    87.37
2072.50    0.406    85.70
2073.50    0.398    83.96
2074.50    0.389    82.15
2075.50    0.381    80.26
2076.50    0.373    78.29
2077.50    0.365    76.23
2078.50    0.358    74.08
2079.50    0.350    71.84
2080.50    0.343    69.50
2081.50    0.336    67.07
2082.50    0.330    64.54
2083.50    0.324    61.91
2084.50    0.318    59.18
2085.50    0.313    56.36
2086.50    0.308    53.45
2087.50    0.304    50.46
2088.50    0.301    47.39
2089.50    0.298    44.26
2090.50    0.296    41.07
2091.50    0.295    37.85
2092.50    0.294    34.61
2093.50    0.294    31.36
2094.50    0.295    28.12
2095.50    0.296    24.90
2096.50    0.298    21.72
2097.50    0.301    18.60
2098.50    0.305    15.54
2099.50    0.309    12.56
2100.50    0.314     9.66
2101.50    0.319     6.86
2102.50    0.325     4.15
2103.50    0.331     1.54
2104.50    0.338   359.04
2105.50    0.345   356.64
2106.50    0.353   354.33
2107.50    0.361   352.13
2108.50    0.369   350.03
2109.50    0.378   348.01
2110.50    0.387   346.09
2111.50    0.395   344.26
2112.50    0.405   342.50
2113.50    0.414   340.82
2114.50    0.423   339.22
2115.50    0.433   337.69
2116.50    0.442   336.22
2117.50    0.452   334.82
2118.50    0.462   333.48
2119.50    0.471   332.19
2120.50    0.481   330.95
2121.50    0.491   329.76
2122.50    0.501   328.62
2123.50    0.510   327.52
2124.50    0.520   326.46
2125.50    0.530   325.45
2126.50    0.539   324.46
2127.50    0.549   323.52
2128.50    0.558   322.60
2129.50    0.568   321.71
2130.50    0.577   320.86
2131.50    0.586   320.03
2132.50    0.596   319.23
2133.50    0.605   318.45
2134.50    0.614   317.69
2135.50    0.623   316.96
2136.50    0.632   316.24
2137.50    0.640   315.55
2138.50    0.649   314.87
2139.50    0.657   314.22
2140.50    0.666   313.57
2141.50    0.674   312.95
2142.50    0.682   312.34
2143.50    0.690   311.74
2144.50    0.698   311.16
2145.50    0.706   310.59
2146.50    0.714   310.04
2147.50    0.722   309.49
2148.50    0.729   308.96
2149.50    0.737   308.44
2150.50    0.744   307.92
2151.50    0.751   307.42
2152.50    0.758   306.93
2153.50    0.765   306.44
2154.50    0.772   305.97
2155.50    0.779   305.50
2156.50    0.785   305.04
2157.50    0.792   304.59
2158.50    0.798   304.15
2159.50    0.805   303.71
2160.50    0.811   303.28
2161.50    0.817   302.86
2162.50    0.823   302.44
2163.50    0.829   302.03
2164.50    0.834   301.62
2165.50    0.840   301.22
2166.50    0.846   300.83
2167.50    0.851   300.44
2168.50    0.856   300.05
2169.50    0.861   299.67
2170.50    0.867   299.30
2171.50    0.872   298.92
2172.50    0.876   298.56
2173.50    0.881   298.19
2174.50    0.886   297.83
2175.50    0.891   297.48
2176.50    0.895   297.13
2177.50    0.899   296.78
2178.50    0.904   296.43
2179.50    0.908   296.09
2180.50    0.912   295.75
2181.50    0.916   295.41
2182.50    0.920   295.08
2183.50    0.924   294.75
2184.50    0.927   294.42
2185.50    0.931   294.10
2186.50    0.935   293.78
2187.50    0.938   293.46
2188.50    0.941   293.14
2189.50    0.945   292.82
2190.50    0.948   292.51
2191.50    0.951   292.20
2192.50    0.954   291.89
2193.50    0.957   291.58
2194.50    0.960   291.28
2195.50    0.962   290.97
2196.50    0.965   290.67
2197.50    0.968   290.37
2198.50    0.970   290.07
2199.50    0.973   289.77
2200.50    0.975   289.48
2201.50    0.977   289.18
2202.50    0.979   288.89
2203.50    0.981   288.60
2204.50    0.984   288.31
2205.50    0.985   288.02
2206.50    0.987   287.73
2207.50    0.989   287.44
2208.50    0.991   287.15
2209.50    0.993   286.87
2210.50    0.994   286.58
2211.50    0.996   286.30
2212.50    0.997   286.02
2213.50    0.998   285.74
2214.50    1.000   285.46
2215.50    1.001   285.17
2216.50    1.002   284.90
2217.50    1.003   284.62
2218.50    1.004   284.34
2219.50    1.005   284.06
2220.50    1.006   283.78
2221.50    1.007   283.50
2222.50    1.008   283.23
2223.50    1.008   282.95
2224.50    1.009   282.68
2225.50    1.010   282.40
2226.50    1.010   282.13
2227.50    1.011   281.85
2228.50    1.011   281.58
2229.50    1.011   281.30
2230.50    1.012   281.03
2231.50    1.012   280.75
2232.50    1.012   280.48
2233.50    1.012   280.20
2234.50    1.012   279.93
2235.50    1.012   279.66
2236.50    1.012   279.38
2237.50    1.012   279.11
2238.50    1.012   278.83
2239.50    1.011   278.56
2240.50    1.011   278.29
2241.50    1.011   278.01
2242.50    1.010   277.74
2243.50    1.010   277.46
2244.50    1.009   277.19
2245.50    1.009   276.91
2246.50    1.008   276.63
2247.50    1.008   276.36
2248.50    1.007   276.08
2249.50    1.006   275.80
2250.50    1.005   275.53
2251.50    1.004   275.25
2252.50    1.004   274.97
2253.50    1.003   274.69
2254.50    1.002   274.41
2255.50    1.001   274.13
2256.50    1.000   273.85
2257.50    0.998   273.57
2258.50    0.997   273.29
2259.50    0.996   273.01
2260.50    0.995   272.72
2261.50    0.994   272.44
2262.50    0.992   272.15
2263.50    0.991   271.87
2264.50    0.989   271.58
2265.50    0.988   271.29
2266.50    0.986   271.01
2267.50    0.985   270.72
2268.50    0.983   270.43
2269.50    0.982   270.14
2270.50    0.980   269.85
2271.50    0.978   269.55






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 18:43:55



www.stella-vega.de