Double Star Calculator - Orbit

Orbital Elements for HU494
WDS: HU494 WDS ID/Discoverer
P: 550.000 Orbital period (years)
a: 0.5 Semi-major axis (arcseconds)
i: 29.0 Inclination (degrees)
Ω: 99.0 Longitude of ascending node (degrees)
T: 1942.000 Epoch of periastron passage (year)
e: 0.823 Eccentricity
ω: 90.0 Longitude of periastron (degrees)
Start-Year: 1750.0 Year
End-Year: 2300.0 Year
Epoch: 2026.5 Besselian Epoch
Further data from the WDS Sixth Catalog of Orbits for HU494
Position: 224034.73+063142.9 Epoch-2000 right ascension and declination
WDS-ID: 22406+0632 WDS designation
Discoverer Code: HU494 Discover designation and components
ADS number: 16165 Aitken Double Star catalog
HD number: 214809 HD catalog number
Hipparcos number: 111947 Hipparcos catalog number
V1: 9.95 Magnitude of the primary
V2: 9.94 Magnitude of the secondary
Equinox: 2000 Equinox
Date: 2008 Date of last observation
Orbit grade: 4 Orbit grade, ranging from :
1 = Definitive
2 = Good
3 = Reliable
4 = Preliminary
5 = Indeterminate
Flags: Flags
Ephemerides: Ephemerides
Code: Hrt2010a Reference

Double Star Orbit for HU494



WDS 6th Orbit including measures of HU494

-- 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 HU494
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2026.50    0.527   337.10
--------------------------
1750.00    0.751    20.05
1751.00    0.750    20.19
1752.00    0.749    20.34
1753.00    0.747    20.48
1754.00    0.746    20.63
1755.00    0.745    20.77
1756.00    0.744    20.92
1757.00    0.743    21.07
1758.00    0.741    21.22
1759.00    0.740    21.36
1760.00    0.739    21.51
1761.00    0.737    21.66
1762.00    0.736    21.81
1763.00    0.735    21.96
1764.00    0.733    22.11
1765.00    0.732    22.26
1766.00    0.731    22.42
1767.00    0.729    22.57
1768.00    0.728    22.72
1769.00    0.726    22.88
1770.00    0.725    23.03
1771.00    0.724    23.19
1772.00    0.722    23.34
1773.00    0.721    23.50
1774.00    0.719    23.65
1775.00    0.718    23.81
1776.00    0.716    23.97
1777.00    0.715    24.13
1778.00    0.713    24.29
1779.00    0.711    24.45
1780.00    0.710    24.61
1781.00    0.708    24.77
1782.00    0.707    24.93
1783.00    0.705    25.10
1784.00    0.703    25.26
1785.00    0.702    25.43
1786.00    0.700    25.59
1787.00    0.698    25.76
1788.00    0.696    25.93
1789.00    0.695    26.09
1790.00    0.693    26.26
1791.00    0.691    26.43
1792.00    0.689    26.60
1793.00    0.687    26.77
1794.00    0.686    26.95
1795.00    0.684    27.12
1796.00    0.682    27.29
1797.00    0.680    27.47
1798.00    0.678    27.65
1799.00    0.676    27.82
1800.00    0.674    28.00
1801.00    0.672    28.18
1802.00    0.670    28.36
1803.00    0.668    28.54
1804.00    0.666    28.73
1805.00    0.664    28.91
1806.00    0.662    29.09
1807.00    0.660    29.28
1808.00    0.658    29.47
1809.00    0.656    29.66
1810.00    0.654    29.85
1811.00    0.651    30.04
1812.00    0.649    30.23
1813.00    0.647    30.42
1814.00    0.645    30.62
1815.00    0.643    30.81
1816.00    0.640    31.01
1817.00    0.638    31.21
1818.00    0.636    31.41
1819.00    0.634    31.61
1820.00    0.631    31.82
1821.00    0.629    32.02
1822.00    0.626    32.23
1823.00    0.624    32.44
1824.00    0.622    32.64
1825.00    0.619    32.86
1826.00    0.617    33.07
1827.00    0.614    33.28
1828.00    0.612    33.50
1829.00    0.609    33.72
1830.00    0.607    33.94
1831.00    0.604    34.16
1832.00    0.601    34.38
1833.00    0.599    34.61
1834.00    0.596    34.84
1835.00    0.593    35.07
1836.00    0.591    35.30
1837.00    0.588    35.53
1838.00    0.585    35.77
1839.00    0.583    36.01
1840.00    0.580    36.25
1841.00    0.577    36.49
1842.00    0.574    36.74
1843.00    0.571    36.98
1844.00    0.568    37.23
1845.00    0.565    37.49
1846.00    0.563    37.74
1847.00    0.560    38.00
1848.00    0.557    38.26
1849.00    0.554    38.53
1850.00    0.550    38.79
1851.00    0.547    39.06
1852.00    0.544    39.34
1853.00    0.541    39.61
1854.00    0.538    39.89
1855.00    0.535    40.17
1856.00    0.532    40.46
1857.00    0.528    40.75
1858.00    0.525    41.04
1859.00    0.522    41.34
1860.00    0.518    41.64
1861.00    0.515    41.94
1862.00    0.512    42.25
1863.00    0.508    42.56
1864.00    0.505    42.88
1865.00    0.501    43.20
1866.00    0.498    43.53
1867.00    0.494    43.86
1868.00    0.491    44.19
1869.00    0.487    44.53
1870.00    0.483    44.88
1871.00    0.480    45.23
1872.00    0.476    45.59
1873.00    0.472    45.95
1874.00    0.468    46.32
1875.00    0.464    46.69
1876.00    0.461    47.07
1877.00    0.457    47.46
1878.00    0.453    47.85
1879.00    0.449    48.25
1880.00    0.445    48.66
1881.00    0.441    49.07
1882.00    0.436    49.50
1883.00    0.432    49.93
1884.00    0.428    50.37
1885.00    0.424    50.81
1886.00    0.420    51.27
1887.00    0.415    51.74
1888.00    0.411    52.21
1889.00    0.406    52.70
1890.00    0.402    53.20
1891.00    0.397    53.71
1892.00    0.393    54.23
1893.00    0.388    54.76
1894.00    0.383    55.31
1895.00    0.379    55.87
1896.00    0.374    56.44
1897.00    0.369    57.03
1898.00    0.364    57.64
1899.00    0.359    58.26
1900.00    0.354    58.90
1901.00    0.349    59.56
1902.00    0.344    60.23
1903.00    0.339    60.93
1904.00    0.333    61.65
1905.00    0.328    62.40
1906.00    0.322    63.17
1907.00    0.317    63.96
1908.00    0.311    64.79
1909.00    0.306    65.64
1910.00    0.300    66.53
1911.00    0.294    67.45
1912.00    0.288    68.41
1913.00    0.282    69.41
1914.00    0.276    70.46
1915.00    0.270    71.55
1916.00    0.263    72.70
1917.00    0.257    73.90
1918.00    0.250    75.16
1919.00    0.244    76.50
1920.00    0.237    77.91
1921.00    0.230    79.40
1922.00    0.223    80.98
1923.00    0.216    82.67
1924.00    0.209    84.48
1925.00    0.201    86.42
1926.00    0.194    88.50
1927.00    0.186    90.77
1928.00    0.178    93.22
1929.00    0.170    95.91
1930.00    0.162    98.87
1931.00    0.153   102.15
1932.00    0.145   105.81
1933.00    0.136   109.93
1934.00    0.128   114.61
1935.00    0.119   119.96
1936.00    0.110   126.15
1937.00    0.102   133.36
1938.00    0.094   141.79
1939.00    0.088   151.63
1940.00    0.082   162.95
1941.00    0.079   175.57
1942.00    0.077   189.00
1943.00    0.079   202.43
1944.00    0.082   215.05
1945.00    0.088   226.37
1946.00    0.094   236.21
1947.00    0.102   244.64
1948.00    0.110   251.85
1949.00    0.119   258.04
1950.00    0.128   263.39
1951.00    0.136   268.07
1952.00    0.145   272.19
1953.00    0.153   275.85
1954.00    0.162   279.13
1955.00    0.170   282.09
1956.00    0.178   284.78
1957.00    0.186   287.23
1958.00    0.194   289.50
1959.00    0.201   291.58
1960.00    0.209   293.52
1961.00    0.216   295.33
1962.00    0.223   297.02
1963.00    0.230   298.60
1964.00    0.237   300.09
1965.00    0.244   301.50
1966.00    0.250   302.84
1967.00    0.257   304.10
1968.00    0.263   305.30
1969.00    0.270   306.45
1970.00    0.276   307.54
1971.00    0.282   308.59
1972.00    0.288   309.59
1973.00    0.294   310.55
1974.00    0.300   311.47
1975.00    0.306   312.36
1976.00    0.311   313.21
1977.00    0.317   314.04
1978.00    0.322   314.83
1979.00    0.328   315.60
1980.00    0.333   316.35
1981.00    0.339   317.07
1982.00    0.344   317.77
1983.00    0.349   318.44
1984.00    0.354   319.10
1985.00    0.359   319.74
1986.00    0.364   320.36
1987.00    0.369   320.97
1988.00    0.374   321.56
1989.00    0.379   322.13
1990.00    0.383   322.69
1991.00    0.388   323.24
1992.00    0.393   323.77
1993.00    0.397   324.29
1994.00    0.402   324.80
1995.00    0.406   325.30
1996.00    0.411   325.79
1997.00    0.415   326.26
1998.00    0.420   326.73
1999.00    0.424   327.19
2000.00    0.428   327.63
2001.00    0.432   328.07
2002.00    0.436   328.50
2003.00    0.441   328.93
2004.00    0.445   329.34
2005.00    0.449   329.75
2006.00    0.453   330.15
2007.00    0.457   330.54
2008.00    0.461   330.93
2009.00    0.464   331.31
2010.00    0.468   331.68
2011.00    0.472   332.05
2012.00    0.476   332.41
2013.00    0.480   332.77
2014.00    0.483   333.12
2015.00    0.487   333.47
2016.00    0.491   333.81
2017.00    0.494   334.14
2018.00    0.498   334.47
2019.00    0.501   334.80
2020.00    0.505   335.12
2021.00    0.508   335.44
2022.00    0.512   335.75
2023.00    0.515   336.06
2024.00    0.518   336.36
2025.00    0.522   336.66
2026.00    0.525   336.96
2027.00    0.528   337.25
2028.00    0.532   337.54
2029.00    0.535   337.83
2030.00    0.538   338.11
2031.00    0.541   338.39
2032.00    0.544   338.66
2033.00    0.547   338.94
2034.00    0.550   339.21
2035.00    0.554   339.47
2036.00    0.557   339.74
2037.00    0.560   340.00
2038.00    0.563   340.26
2039.00    0.565   340.51
2040.00    0.568   340.77
2041.00    0.571   341.02
2042.00    0.574   341.26
2043.00    0.577   341.51
2044.00    0.580   341.75
2045.00    0.583   341.99
2046.00    0.585   342.23
2047.00    0.588   342.47
2048.00    0.591   342.70
2049.00    0.593   342.93
2050.00    0.596   343.16
2051.00    0.599   343.39
2052.00    0.601   343.62
2053.00    0.604   343.84
2054.00    0.607   344.06
2055.00    0.609   344.28
2056.00    0.612   344.50
2057.00    0.614   344.72
2058.00    0.617   344.93
2059.00    0.619   345.14
2060.00    0.622   345.36
2061.00    0.624   345.56
2062.00    0.626   345.77
2063.00    0.629   345.98
2064.00    0.631   346.18
2065.00    0.634   346.39
2066.00    0.636   346.59
2067.00    0.638   346.79
2068.00    0.640   346.99
2069.00    0.643   347.19
2070.00    0.645   347.38
2071.00    0.647   347.58
2072.00    0.649   347.77
2073.00    0.651   347.96
2074.00    0.654   348.15
2075.00    0.656   348.34
2076.00    0.658   348.53
2077.00    0.660   348.72
2078.00    0.662   348.91
2079.00    0.664   349.09
2080.00    0.666   349.27
2081.00    0.668   349.46
2082.00    0.670   349.64
2083.00    0.672   349.82
2084.00    0.674   350.00
2085.00    0.676   350.18
2086.00    0.678   350.35
2087.00    0.680   350.53
2088.00    0.682   350.71
2089.00    0.684   350.88
2090.00    0.686   351.05
2091.00    0.687   351.23
2092.00    0.689   351.40
2093.00    0.691   351.57
2094.00    0.693   351.74
2095.00    0.695   351.91
2096.00    0.696   352.07
2097.00    0.698   352.24
2098.00    0.700   352.41
2099.00    0.702   352.57
2100.00    0.703   352.74
2101.00    0.705   352.90
2102.00    0.707   353.07
2103.00    0.708   353.23
2104.00    0.710   353.39
2105.00    0.711   353.55
2106.00    0.713   353.71
2107.00    0.715   353.87
2108.00    0.716   354.03
2109.00    0.718   354.19
2110.00    0.719   354.35
2111.00    0.721   354.50
2112.00    0.722   354.66
2113.00    0.724   354.81
2114.00    0.725   354.97
2115.00    0.726   355.12
2116.00    0.728   355.28
2117.00    0.729   355.43
2118.00    0.731   355.58
2119.00    0.732   355.74
2120.00    0.733   355.89
2121.00    0.735   356.04
2122.00    0.736   356.19
2123.00    0.737   356.34
2124.00    0.739   356.49
2125.00    0.740   356.64
2126.00    0.741   356.78
2127.00    0.743   356.93
2128.00    0.744   357.08
2129.00    0.745   357.23
2130.00    0.746   357.37
2131.00    0.747   357.52
2132.00    0.749   357.66
2133.00    0.750   357.81
2134.00    0.751   357.95
2135.00    0.752   358.10
2136.00    0.753   358.24
2137.00    0.754   358.38
2138.00    0.755   358.53
2139.00    0.756   358.67
2140.00    0.757   358.81
2141.00    0.758   358.95
2142.00    0.760   359.09
2143.00    0.761   359.23
2144.00    0.762   359.37
2145.00    0.763   359.51
2146.00    0.763   359.65
2147.00    0.764   359.79
2148.00    0.765   359.93
2149.00    0.766     0.07
2150.00    0.767     0.21
2151.00    0.768     0.35
2152.00    0.769     0.48
2153.00    0.770     0.62
2154.00    0.771     0.76
2155.00    0.772     0.89
2156.00    0.772     1.03
2157.00    0.773     1.17
2158.00    0.774     1.30
2159.00    0.775     1.44
2160.00    0.776     1.57
2161.00    0.776     1.71
2162.00    0.777     1.84
2163.00    0.778     1.98
2164.00    0.779     2.11
2165.00    0.779     2.25
2166.00    0.780     2.38
2167.00    0.781     2.51
2168.00    0.781     2.65
2169.00    0.782     2.78
2170.00    0.783     2.91
2171.00    0.783     3.05
2172.00    0.784     3.18
2173.00    0.784     3.31
2174.00    0.785     3.44
2175.00    0.786     3.57
2176.00    0.786     3.71
2177.00    0.787     3.84
2178.00    0.787     3.97
2179.00    0.788     4.10
2180.00    0.788     4.23
2181.00    0.789     4.36
2182.00    0.789     4.49
2183.00    0.790     4.62
2184.00    0.790     4.75
2185.00    0.790     4.88
2186.00    0.791     5.01
2187.00    0.791     5.14
2188.00    0.792     5.27
2189.00    0.792     5.40
2190.00    0.792     5.53
2191.00    0.793     5.66
2192.00    0.793     5.79
2193.00    0.793     5.92
2194.00    0.794     6.05
2195.00    0.794     6.18
2196.00    0.794     6.31
2197.00    0.795     6.44
2198.00    0.795     6.56
2199.00    0.795     6.69
2200.00    0.795     6.82
2201.00    0.796     6.95
2202.00    0.796     7.08
2203.00    0.796     7.21
2204.00    0.796     7.34
2205.00    0.796     7.46
2206.00    0.796     7.59
2207.00    0.797     7.72
2208.00    0.797     7.85
2209.00    0.797     7.98
2210.00    0.797     8.10
2211.00    0.797     8.23
2212.00    0.797     8.36
2213.00    0.797     8.49
2214.00    0.797     8.62
2215.00    0.797     8.74
2216.00    0.797     8.87
2217.00    0.797     9.00
2218.00    0.797     9.13
2219.00    0.797     9.26
2220.00    0.797     9.38
2221.00    0.797     9.51
2222.00    0.797     9.64
2223.00    0.797     9.77
2224.00    0.797     9.90
2225.00    0.797    10.02
2226.00    0.797    10.15
2227.00    0.797    10.28
2228.00    0.796    10.41
2229.00    0.796    10.54
2230.00    0.796    10.66
2231.00    0.796    10.79
2232.00    0.796    10.92
2233.00    0.796    11.05
2234.00    0.795    11.18
2235.00    0.795    11.31
2236.00    0.795    11.44
2237.00    0.795    11.56
2238.00    0.794    11.69
2239.00    0.794    11.82
2240.00    0.794    11.95
2241.00    0.793    12.08
2242.00    0.793    12.21
2243.00    0.793    12.34
2244.00    0.792    12.47
2245.00    0.792    12.60
2246.00    0.792    12.73
2247.00    0.791    12.86
2248.00    0.791    12.99
2249.00    0.790    13.12
2250.00    0.790    13.25
2251.00    0.790    13.38
2252.00    0.789    13.51
2253.00    0.789    13.64
2254.00    0.788    13.77
2255.00    0.788    13.90
2256.00    0.787    14.03
2257.00    0.787    14.16
2258.00    0.786    14.29
2259.00    0.786    14.43
2260.00    0.785    14.56
2261.00    0.784    14.69
2262.00    0.784    14.82
2263.00    0.783    14.95
2264.00    0.783    15.09
2265.00    0.782    15.22
2266.00    0.781    15.35
2267.00    0.781    15.49
2268.00    0.780    15.62
2269.00    0.779    15.75
2270.00    0.779    15.89
2271.00    0.778    16.02
2272.00    0.777    16.16
2273.00    0.776    16.29
2274.00    0.776    16.43
2275.00    0.775    16.56
2276.00    0.774    16.70
2277.00    0.773    16.83
2278.00    0.772    16.97
2279.00    0.772    17.11
2280.00    0.771    17.24
2281.00    0.770    17.38
2282.00    0.769    17.52
2283.00    0.768    17.65
2284.00    0.767    17.79
2285.00    0.766    17.93
2286.00    0.765    18.07
2287.00    0.764    18.21
2288.00    0.763    18.35
2289.00    0.763    18.49
2290.00    0.762    18.63
2291.00    0.761    18.77
2292.00    0.760    18.91
2293.00    0.758    19.05
2294.00    0.757    19.19
2295.00    0.756    19.33
2296.00    0.755    19.47
2297.00    0.754    19.62
2298.00    0.753    19.76
2299.00    0.752    19.90






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 18:43:06



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