Double Star Calculator - Orbit

Orbital Elements for HU388
WDS: HU388 WDS ID/Discoverer
P: 535.000 Orbital period (years)
a: 0.518 Semi-major axis (arcseconds)
i: 31.5 Inclination (degrees)
Ω: 8.8 Longitude of ascending node (degrees)
T: 1934.360 Epoch of periastron passage (year)
e: 0.827 Eccentricity
ω: 265.0 Longitude of periastron (degrees)
Start-Year: 1757.5 Year
End-Year: 2292.5 Year
Epoch: 2026.5 Besselian Epoch
Further data from the WDS Sixth Catalog of Orbits for HU388
Position: 223014.53+222800.0 Epoch-2000 right ascension and declination
WDS-ID: 22302+2228 WDS designation
Discoverer Code: HU388 Discover designation and components
ADS number: 15992 Aitken Double Star catalog
HD number: 213315 HD catalog number
Hipparcos number: 111082 Hipparcos catalog number
V1: 8.48 Magnitude of the primary
V2: 9.10 Magnitude of the secondary
Equinox: 2000 Equinox
Date: 2005 Date of last observation
Orbit grade: 4 Orbit grade, ranging from :
1 = Definitive
2 = Good
3 = Reliable
4 = Preliminary
5 = Indeterminate
Flags: n Flags
Ephemerides: Ephemerides
Code: Doc2008c Reference

Double Star Orbit for HU388



WDS 6th Orbit including measures of HU388

-- 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 HU388
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.576    64.12
--------------------------
1757.50    0.745   105.65
1758.50    0.743   105.80
1759.50    0.742   105.96
1760.50    0.741   106.12
1761.50    0.739   106.28
1762.50    0.738   106.44
1763.50    0.736   106.60
1764.50    0.735   106.76
1765.50    0.733   106.92
1766.50    0.732   107.08
1767.50    0.730   107.24
1768.50    0.729   107.40
1769.50    0.727   107.56
1770.50    0.726   107.73
1771.50    0.724   107.89
1772.50    0.722   108.06
1773.50    0.721   108.23
1774.50    0.719   108.39
1775.50    0.718   108.56
1776.50    0.716   108.73
1777.50    0.714   108.90
1778.50    0.712   109.07
1779.50    0.711   109.24
1780.50    0.709   109.41
1781.50    0.707   109.58
1782.50    0.705   109.76
1783.50    0.704   109.93
1784.50    0.702   110.11
1785.50    0.700   110.28
1786.50    0.698   110.46
1787.50    0.696   110.64
1788.50    0.694   110.82
1789.50    0.692   111.00
1790.50    0.690   111.18
1791.50    0.689   111.36
1792.50    0.687   111.54
1793.50    0.685   111.73
1794.50    0.683   111.91
1795.50    0.681   112.10
1796.50    0.679   112.29
1797.50    0.676   112.47
1798.50    0.674   112.66
1799.50    0.672   112.86
1800.50    0.670   113.05
1801.50    0.668   113.24
1802.50    0.666   113.44
1803.50    0.664   113.63
1804.50    0.661   113.83
1805.50    0.659   114.03
1806.50    0.657   114.23
1807.50    0.655   114.43
1808.50    0.652   114.63
1809.50    0.650   114.83
1810.50    0.648   115.04
1811.50    0.646   115.25
1812.50    0.643   115.46
1813.50    0.641   115.67
1814.50    0.638   115.88
1815.50    0.636   116.09
1816.50    0.634   116.31
1817.50    0.631   116.52
1818.50    0.629   116.74
1819.50    0.626   116.96
1820.50    0.624   117.18
1821.50    0.621   117.41
1822.50    0.618   117.63
1823.50    0.616   117.86
1824.50    0.613   118.09
1825.50    0.610   118.32
1826.50    0.608   118.55
1827.50    0.605   118.79
1828.50    0.602   119.02
1829.50    0.600   119.26
1830.50    0.597   119.51
1831.50    0.594   119.75
1832.50    0.591   120.00
1833.50    0.588   120.24
1834.50    0.586   120.50
1835.50    0.583   120.75
1836.50    0.580   121.01
1837.50    0.577   121.26
1838.50    0.574   121.53
1839.50    0.571   121.79
1840.50    0.568   122.06
1841.50    0.565   122.33
1842.50    0.562   122.60
1843.50    0.559   122.88
1844.50    0.555   123.15
1845.50    0.552   123.44
1846.50    0.549   123.72
1847.50    0.546   124.01
1848.50    0.543   124.30
1849.50    0.539   124.60
1850.50    0.536   124.90
1851.50    0.533   125.20
1852.50    0.529   125.51
1853.50    0.526   125.82
1854.50    0.523   126.13
1855.50    0.519   126.45
1856.50    0.516   126.78
1857.50    0.512   127.10
1858.50    0.509   127.44
1859.50    0.505   127.77
1860.50    0.501   128.12
1861.50    0.498   128.46
1862.50    0.494   128.81
1863.50    0.490   129.17
1864.50    0.486   129.53
1865.50    0.483   129.90
1866.50    0.479   130.28
1867.50    0.475   130.66
1868.50    0.471   131.05
1869.50    0.467   131.44
1870.50    0.463   131.84
1871.50    0.459   132.25
1872.50    0.455   132.66
1873.50    0.451   133.08
1874.50    0.447   133.51
1875.50    0.443   133.95
1876.50    0.438   134.40
1877.50    0.434   134.85
1878.50    0.430   135.31
1879.50    0.425   135.79
1880.50    0.421   136.27
1881.50    0.416   136.77
1882.50    0.412   137.27
1883.50    0.407   137.79
1884.50    0.403   138.31
1885.50    0.398   138.85
1886.50    0.393   139.41
1887.50    0.389   139.97
1888.50    0.384   140.55
1889.50    0.379   141.15
1890.50    0.374   141.76
1891.50    0.369   142.39
1892.50    0.364   143.03
1893.50    0.359   143.70
1894.50    0.353   144.38
1895.50    0.348   145.08
1896.50    0.343   145.81
1897.50    0.337   146.56
1898.50    0.332   147.33
1899.50    0.326   148.13
1900.50    0.321   148.96
1901.50    0.315   149.81
1902.50    0.309   150.70
1903.50    0.303   151.62
1904.50    0.297   152.58
1905.50    0.291   153.58
1906.50    0.285   154.63
1907.50    0.279   155.72
1908.50    0.272   156.86
1909.50    0.266   158.05
1910.50    0.259   159.31
1911.50    0.253   160.63
1912.50    0.246   162.03
1913.50    0.239   163.50
1914.50    0.232   165.07
1915.50    0.224   166.73
1916.50    0.217   168.51
1917.50    0.209   170.42
1918.50    0.202   172.47
1919.50    0.194   174.69
1920.50    0.186   177.10
1921.50    0.177   179.73
1922.50    0.169   182.62
1923.50    0.160   185.82
1924.50    0.151   189.39
1925.50    0.142   193.41
1926.50    0.133   197.98
1927.50    0.124   203.23
1928.50    0.115   209.33
1929.50    0.105   216.49
1930.50    0.097   224.99
1931.50    0.089   235.07
1932.50    0.082   246.92
1933.50    0.078   260.43
1934.50    0.076   275.01
1935.50    0.078   289.64
1936.50    0.082   303.26
1937.50    0.089   315.21
1938.50    0.096   325.37
1939.50    0.105   333.89
1940.50    0.115   341.05
1941.50    0.124   347.11
1942.50    0.134   352.29
1943.50    0.144   356.78
1944.50    0.153     0.71
1945.50    0.163     4.18
1946.50    0.172     7.28
1947.50    0.181    10.07
1948.50    0.189    12.60
1949.50    0.198    14.91
1950.50    0.206    17.04
1951.50    0.214    18.99
1952.50    0.222    20.81
1953.50    0.230    22.50
1954.50    0.238    24.08
1955.50    0.245    25.57
1956.50    0.253    26.97
1957.50    0.260    28.29
1958.50    0.267    29.54
1959.50    0.274    30.72
1960.50    0.280    31.85
1961.50    0.287    32.92
1962.50    0.294    33.95
1963.50    0.300    34.93
1964.50    0.306    35.87
1965.50    0.313    36.78
1966.50    0.319    37.64
1967.50    0.325    38.48
1968.50    0.331    39.28
1969.50    0.337    40.06
1970.50    0.342    40.81
1971.50    0.348    41.54
1972.50    0.354    42.24
1973.50    0.359    42.92
1974.50    0.365    43.58
1975.50    0.370    44.22
1976.50    0.375    44.85
1977.50    0.381    45.45
1978.50    0.386    46.04
1979.50    0.391    46.62
1980.50    0.396    47.18
1981.50    0.401    47.72
1982.50    0.406    48.25
1983.50    0.411    48.77
1984.50    0.415    49.28
1985.50    0.420    49.78
1986.50    0.425    50.26
1987.50    0.429    50.74
1988.50    0.434    51.20
1989.50    0.439    51.65
1990.50    0.443    52.10
1991.50    0.447    52.54
1992.50    0.452    52.96
1993.50    0.456    53.38
1994.50    0.460    53.80
1995.50    0.465    54.20
1996.50    0.469    54.60
1997.50    0.473    54.99
1998.50    0.477    55.37
1999.50    0.481    55.75
2000.50    0.485    56.12
2001.50    0.489    56.49
2002.50    0.493    56.85
2003.50    0.497    57.20
2004.50    0.501    57.55
2005.50    0.504    57.89
2006.50    0.508    58.23
2007.50    0.512    58.56
2008.50    0.516    58.89
2009.50    0.519    59.21
2010.50    0.523    59.53
2011.50    0.526    59.85
2012.50    0.530    60.16
2013.50    0.533    60.46
2014.50    0.537    60.76
2015.50    0.540    61.06
2016.50    0.544    61.36
2017.50    0.547    61.65
2018.50    0.550    61.94
2019.50    0.554    62.22
2020.50    0.557    62.50
2021.50    0.560    62.78
2022.50    0.563    63.05
2023.50    0.567    63.32
2024.50    0.570    63.59
2025.50    0.573    63.86
2026.50    0.576    64.12
2027.50    0.579    64.38
2028.50    0.582    64.63
2029.50    0.585    64.89
2030.50    0.588    65.14
2031.50    0.591    65.39
2032.50    0.594    65.63
2033.50    0.597    65.88
2034.50    0.600    66.12
2035.50    0.603    66.36
2036.50    0.605    66.60
2037.50    0.608    66.83
2038.50    0.611    67.07
2039.50    0.614    67.30
2040.50    0.616    67.52
2041.50    0.619    67.75
2042.50    0.622    67.98
2043.50    0.624    68.20
2044.50    0.627    68.42
2045.50    0.630    68.64
2046.50    0.632    68.86
2047.50    0.635    69.07
2048.50    0.637    69.29
2049.50    0.640    69.50
2050.50    0.642    69.71
2051.50    0.645    69.92
2052.50    0.647    70.13
2053.50    0.649    70.33
2054.50    0.652    70.54
2055.50    0.654    70.74
2056.50    0.656    70.94
2057.50    0.659    71.14
2058.50    0.661    71.34
2059.50    0.663    71.54
2060.50    0.666    71.73
2061.50    0.668    71.93
2062.50    0.670    72.12
2063.50    0.672    72.31
2064.50    0.674    72.51
2065.50    0.676    72.69
2066.50    0.679    72.88
2067.50    0.681    73.07
2068.50    0.683    73.26
2069.50    0.685    73.44
2070.50    0.687    73.63
2071.50    0.689    73.81
2072.50    0.691    73.99
2073.50    0.693    74.17
2074.50    0.695    74.35
2075.50    0.697    74.53
2076.50    0.699    74.71
2077.50    0.701    74.88
2078.50    0.702    75.06
2079.50    0.704    75.24
2080.50    0.706    75.41
2081.50    0.708    75.58
2082.50    0.710    75.76
2083.50    0.712    75.93
2084.50    0.713    76.10
2085.50    0.715    76.27
2086.50    0.717    76.44
2087.50    0.718    76.60
2088.50    0.720    76.77
2089.50    0.722    76.94
2090.50    0.723    77.10
2091.50    0.725    77.27
2092.50    0.727    77.43
2093.50    0.728    77.60
2094.50    0.730    77.76
2095.50    0.731    77.92
2096.50    0.733    78.08
2097.50    0.735    78.24
2098.50    0.736    78.40
2099.50    0.738    78.56
2100.50    0.739    78.72
2101.50    0.740    78.88
2102.50    0.742    79.04
2103.50    0.743    79.19
2104.50    0.745    79.35
2105.50    0.746    79.51
2106.50    0.748    79.66
2107.50    0.749    79.82
2108.50    0.750    79.97
2109.50    0.752    80.12
2110.50    0.753    80.28
2111.50    0.754    80.43
2112.50    0.755    80.58
2113.50    0.757    80.73
2114.50    0.758    80.88
2115.50    0.759    81.03
2116.50    0.760    81.18
2117.50    0.762    81.33
2118.50    0.763    81.48
2119.50    0.764    81.63
2120.50    0.765    81.78
2121.50    0.766    81.93
2122.50    0.767    82.07
2123.50    0.768    82.22
2124.50    0.769    82.37
2125.50    0.770    82.51
2126.50    0.772    82.66
2127.50    0.773    82.80
2128.50    0.774    82.95
2129.50    0.775    83.09
2130.50    0.776    83.24
2131.50    0.777    83.38
2132.50    0.778    83.52
2133.50    0.778    83.67
2134.50    0.779    83.81
2135.50    0.780    83.95
2136.50    0.781    84.09
2137.50    0.782    84.24
2138.50    0.783    84.38
2139.50    0.784    84.52
2140.50    0.785    84.66
2141.50    0.785    84.80
2142.50    0.786    84.94
2143.50    0.787    85.08
2144.50    0.788    85.22
2145.50    0.789    85.36
2146.50    0.789    85.50
2147.50    0.790    85.64
2148.50    0.791    85.77
2149.50    0.791    85.91
2150.50    0.792    86.05
2151.50    0.793    86.19
2152.50    0.793    86.33
2153.50    0.794    86.46
2154.50    0.795    86.60
2155.50    0.795    86.74
2156.50    0.796    86.87
2157.50    0.797    87.01
2158.50    0.797    87.15
2159.50    0.798    87.28
2160.50    0.798    87.42
2161.50    0.799    87.56
2162.50    0.799    87.69
2163.50    0.800    87.83
2164.50    0.800    87.96
2165.50    0.801    88.10
2166.50    0.801    88.23
2167.50    0.802    88.37
2168.50    0.802    88.50
2169.50    0.802    88.64
2170.50    0.803    88.77
2171.50    0.803    88.90
2172.50    0.804    89.04
2173.50    0.804    89.17
2174.50    0.804    89.31
2175.50    0.805    89.44
2176.50    0.805    89.57
2177.50    0.805    89.71
2178.50    0.805    89.84
2179.50    0.806    89.97
2180.50    0.806    90.11
2181.50    0.806    90.24
2182.50    0.806    90.37
2183.50    0.807    90.51
2184.50    0.807    90.64
2185.50    0.807    90.77
2186.50    0.807    90.90
2187.50    0.807    91.04
2188.50    0.808    91.17
2189.50    0.808    91.30
2190.50    0.808    91.44
2191.50    0.808    91.57
2192.50    0.808    91.70
2193.50    0.808    91.83
2194.50    0.808    91.97
2195.50    0.808    92.10
2196.50    0.808    92.23
2197.50    0.808    92.36
2198.50    0.808    92.50
2199.50    0.808    92.63
2200.50    0.808    92.76
2201.50    0.808    92.89
2202.50    0.808    93.03
2203.50    0.808    93.16
2204.50    0.808    93.29
2205.50    0.808    93.42
2206.50    0.808    93.56
2207.50    0.808    93.69
2208.50    0.807    93.82
2209.50    0.807    93.95
2210.50    0.807    94.09
2211.50    0.807    94.22
2212.50    0.807    94.35
2213.50    0.807    94.49
2214.50    0.806    94.62
2215.50    0.806    94.75
2216.50    0.806    94.89
2217.50    0.806    95.02
2218.50    0.805    95.15
2219.50    0.805    95.29
2220.50    0.805    95.42
2221.50    0.804    95.55
2222.50    0.804    95.69
2223.50    0.804    95.82
2224.50    0.803    95.96
2225.50    0.803    96.09
2226.50    0.803    96.22
2227.50    0.802    96.36
2228.50    0.802    96.49
2229.50    0.801    96.63
2230.50    0.801    96.76
2231.50    0.800    96.90
2232.50    0.800    97.03
2233.50    0.799    97.17
2234.50    0.799    97.30
2235.50    0.798    97.44
2236.50    0.798    97.58
2237.50    0.797    97.71
2238.50    0.797    97.85
2239.50    0.796    97.98
2240.50    0.796    98.12
2241.50    0.795    98.26
2242.50    0.794    98.39
2243.50    0.794    98.53
2244.50    0.793    98.67
2245.50    0.792    98.81
2246.50    0.792    98.94
2247.50    0.791    99.08
2248.50    0.790    99.22
2249.50    0.790    99.36
2250.50    0.789    99.50
2251.50    0.788    99.64
2252.50    0.787    99.78
2253.50    0.787    99.92
2254.50    0.786   100.06
2255.50    0.785   100.20
2256.50    0.784   100.34
2257.50    0.783   100.48
2258.50    0.783   100.62
2259.50    0.782   100.76
2260.50    0.781   100.90
2261.50    0.780   101.05
2262.50    0.779   101.19
2263.50    0.778   101.33
2264.50    0.777   101.47
2265.50    0.776   101.62
2266.50    0.775   101.76
2267.50    0.774   101.91
2268.50    0.773   102.05
2269.50    0.772   102.19
2270.50    0.771   102.34
2271.50    0.770   102.49
2272.50    0.769   102.63
2273.50    0.768   102.78
2274.50    0.767   102.93
2275.50    0.766   103.07
2276.50    0.765   103.22
2277.50    0.764   103.37
2278.50    0.763   103.52
2279.50    0.761   103.67
2280.50    0.760   103.82
2281.50    0.759   103.97
2282.50    0.758   104.12
2283.50    0.757   104.27
2284.50    0.755   104.42
2285.50    0.754   104.57
2286.50    0.753   104.72
2287.50    0.752   104.88
2288.50    0.750   105.03
2289.50    0.749   105.18
2290.50    0.748   105.34
2291.50    0.746   105.49






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 18:41:01



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